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3b. Final Plat of Bluff Creek Estates, 2nd Addition I'. , 3b CITYOF 1 1 0'1111 690 COULTER DRIVE • P.O. BOX 147 • CHANHASSEN, MINNESOTA 55317 (612) 937 -1900 • FAX (612) 937 -5739 I INS" 59 Chy lidnitil3t:stor endorsed—✓ D W IV 1 MEMORANDUM Moditied._,---_ Rejected IMP t (0 - TO: Don Ashworth, City Manager Date Submitted to Commission I FROM: Sharmin Al -Jaff, Planner I Date Submitted to Council i - /i —f 1 DATE: January 5, 1993 SUBJ: Final Plat of Bluff Creek Estates Second Addition (Replat of a portion of Outlot I C, Bluff Creek Estates First Addition into four Single Family lots and one outlot) 1 PROPOSAL/SUMMARY .y s . I On June 22, 1992, the City Council reviewM the Preliminary Plat #92 -5, Rezoning #92 -3, and Wetland Alteration Permit #92 -6 for Bluff Creek Estates and recommended approval of this application (Attachment #2). %£ I The applicant is requesting approval to subdivide a 9.728 ite into 4 single family lots and PP eq g PP , �'F $ g Y one outlot. This proposal is the second phase of the Bluff Creek Estates subdivision. Phase I I was approved by the City Council on August 24, 1992. The entire project will be developed in four phases. Phase two, which the applicant is seeking approval for, will consist of 4 single family lots and one outlot. The site is located west of Audubon Road, north of Sun Ridge 1 Subdivision, and south of Ryan's Chanhassen Business Center. Access to the four lots will be provided via Valley Ridge "Place.: sill of the proposed lots meet or exceed the minimum 15,000 square feet of area with an average lot size of 18,134 square feet. The site was farmed until 1 recently and is devoid of significant vegetation. µ Williams Pipe Line Company has a foot wide easement that runs east and west through Lots 1 1 and 2, Block 1. It is city policy, as well as utility companies, not to allow any structure to be constructed within an easement. . II Staff believes that this plat request is a reasonable one and is generally consistent with guidelines established by the city's Comprehensive Plan, Zoning Ordinance and the Preliminary Plat I approved by the City Council. We find it to be well designed and consistent with the approved platting for Bluff Creek Estates. We are recommending that it be approved with conditions outlined in the report. 1 n t4, PRINTED ON RECYCLED PAPER 1 1 City Council Bluff Creek Estates 2nd Addition Page 2 Grading and Drainage 1 Staff is recommending a krading plan specifically for this phase be prepared and submitted to the City for our records. 1 Streets/Utilities In conjunction with Bluff Creek Estates 1st Addition, utility and street improvements have been designed and constructed to service this phase of the development. Park and Recreation The Park and Recreation Commission recommended the City Council require full park fees be 1 paid as a condition of approval of Bluff Creek Estates. Fees to be paid at the time of building permit approval in the amount of the park fee in force at the time of building pennit application. 1 COMPLIANCE WITH ORDINANCE - RSF DISTRICT Lot Lot Home Home Area Width Depth Setback Ordinance 15,000 90' 125' 30' front/rear 1 10' sides BLOCK 1 1 Lot 1 17,659 62.80 162.95 Lot 2 20,587 55.64 158.27 1 Lot 3 19,174 55.64 154.15 1 Lot 4 15,115 71.90 149.18 RECOMMENDATION Staff recommends the City Council adopt the following motion: 1 "The City Council approves the final plat for Bluff Creek 2nd Addition (Subdivision #92 -5) as shown on the plans stamped December 7, 1992, subject to the following conditions: 1. The applicant shall supply the City with a grading plan specifically for Bluff Creek Estates 2nd Addition. 1 • 1 1 City Council 1 Bluff Creek Estates 2nd Addition Page 3 I 2. The applicant shall enter into an amended Bluff Creek Estates 1st Addition development contract with the city and provide the financial security to guarantee compliance with the terms of the development contract. I 3. All necessary permits shall be obtained from the pipeline company for any grading or construction activity within the pipeline easement. • I 4. The licant shall be responsible for all attorney and recording fees related to this aPP Po Y g subdivision. 5. The applicant shall meet the conditions of the Rezoning #92 -3 and the Wetland Alteration PP g Permit #92 -6." ATTACHMENTS 1 1. Memo from Dave Hempel dated January 3, 1993. 2. Staff report and City Council minutes dated June 22, 1992. 1 3. Final plat stamped December 7, 1992. 1 1 1 1 1 1 1 1 1 1 • . f CITYOF CHANHASSEN I 690 COULTER DRIVE • P.O. BOX 147 • CHANHASSEN, MINNESOTA 55317 (612) 937 -1900 • FAX (612) 937 -5739 � 1 MEMORANDUM • 1 TO: Sharmin Al -Jaff, Planner I FROM: Dave Hempel, Assistant City Engineer r DATE: January 5, 1993 r SUBJ: Review of Final Plat for Bluff Creek Estates 2nd Addition File No. 93 -3 Land Use Review r Upon review of the final plat of Bluff Creek Estates 2nd Addition prepared by James R. Hill, Inc., date stamped December 7, 1992, I offer the following comments and 1 recommendations: This proposed plat is a replat of a portion of Outlot C of Bluff Creek Estates 1st Addition. r In conjunction with Bluff Creek Estates 1st Addition, utility and street improvements have been designed and constructed to service this phase of the development. The proposed subdivision is consistent with the approved preliminary plat of the entire development. Staff does recommend, however, that a grading plan specifically for this phase be prepared and submitted to the City for our records. Since no public improvements are proposed, a development contract is typically not necessary; however, since there are pending assessment for trunk sewer and water improvements, it is recommended that the development contract for the 1st Addition be amended to include Bluff Meek Estates 2nd Addition o-, _ RECOMMENDED CONDITIONS OF APPROVAL 1. The applicant shall supply the City with a grading plan for Bluff Creek Estates 2nd Addition. 4 I 2. The applicant shall enter into an amended Bluff Creek Estates 1st Addition •' development contract. c: Charles Folch, City Engineer Tit PRINTED ON RECYCLED PAPER r Cli IT T O F DA till 1 C. (1) ' , CC DATE: August 24,1992 1 S ASE #: 92 -5 SUB, By �4i=3aff 1 STAFF REPORT • 1 • PROPOSAL: Final Plat to Subdivide 61.45 Acres into 20 Single Family Lots and Four Outlots I Z z LOCATION: North of Sun Ridge Court, south of Chanhassen Business Center, and west of Audubon Road. I < APPLICANT: Keyland Homes Rod Grams I 14450 Burnsville Parkway 8640 Audubon Road Burnsville, MN 55337 Chanhassen, MN 55317 0. 1 1 , , 1 PRESENT ZONING: A -2, Agricultural Estate District ACREAGE: 61.45 acres (gross) 33.85 acres (net) I DENSITY: 1.27 u/a (gross) 2.23 u/a (net) 1 ADJACENT ZONING AND LAND USE: N - IOP; Chanhassen Business Center S - RR; Sun Ridge Subdivision I Q E - A -2; Agricultural Estate District } W - A -2; Agricultural Estate District 1 1 . 1 WATER AND SEWER: Available to the site I W PHYSICAL CHARACTER.: The area has rolling hills. The majority of the site is being _" farmed. Mature elm trees are located along the north edge. CJ� An existing single family residence, barn, and garage I occupy the northeast portion of the site. A Class A wetland and Bluff Creek occupy the westerly portion of the site. 1 2000 LAND USE PLAN: Low Density Residential 1 ' I Final Plat - Bluff Creek Estates August 24, 1992 Page 2 • PROPOSAL /SUMMARY I The applicant is requesting approval to subdivide a 61.45 acre site into 78 single family lots. I This proposal will be developed in four phases. Phase one, which the applicant is seeking approval for, will consist of 20 single family lots and four outlots. One of the lots (Lot 1, Block 1) will be occupied by an existing home. The balance will be available for new construction. 1 The site is located west of Audubon Road, north of Sun Ridge Subdivision, and south of Ryan's Chanhassen Business Center. Access to the subdivision will be provided by a loop road off Audubon Road. 1 All of the proposed lots meet the minimum requirement of the Zoning Ordinance with the I exception of Lot 7, Block 3, which has a street frontage of 87 feet. The Zoning Ordinance requires a 90 foot frontage. Staff is recommending that the applicant revise the final plat and provide the required 90 foot frontage. ' The Bluff Creek Estates site was located outside of the MUSA line until the recent MUSA expansion that was approved by the Metropolitan Council in May of 1991. This area is in the I Bluff Creek Sewer Feasibility Area recently approved by the City Council. Sewer service to this area could be available in the fall of 1992 at the earliest. Water service will also be available. The applicant is proposing to develop this area in four phases. The first phase would include 1 Lots 1 through 6, Block 1, Lots 1 through 6, Block 2, and Lots 1 through 8, Block 3. The applicant would like to construct one model home located on Lot 2, Block 1 for the Parade of Homes, which begins the first week of September. This home is proposed to share the driveway with the existing home, until such time when the proposed Valley Ridge Trail South is constructed. 1 Williams Pipe Line Company has a 75 foot wide easement that runs east and west through the property. It is city policy, as well as utility companies, not to allow any structure to be constructed within an easement. The majority of this site is farmed and is devoid of vegetation except for a line of elm trees that I run parallel to the north property line, and some wetland vegetation along Bluff Creek occupying the westerly portion of the site. Phase 1 of this development will not intrude into any heavily vegetated area or the wetland. 1 The recently adopted Landscaping and Tree Preservation Ordinance states that all development located on arterial and collector streets are required to provide streetscape landscaping. The 1 landscaping plan which was submitted by the applicant as part of the preliminary plat is in response to this requirement, and is of a very high quality and exceeds the city ordinance 1 standards. 1 i Final Plat - Bluff Creek Estates August 24, 1992 Page 3 There is a wetland on the site. This wetland includes the protected water course of Bluff Creek. The wetland is not proposed to be altered other than a small portion where a storm sewer outlet will be located. This area will then be restored to its natural state. The wetland and Bluff Creek are located within a conservation easement in an outlot. 111 The Park and Recreation Commission is recommending that park fees be paid in lieu of park land. They are recommending the city acquire ownership of Outlot A. This would allow for continuation of the Bluff Creek preservation corridor which would ultimately extend from Minnewashta Regional Park to the Minnesota River. Staff believes that this plat request is a reasonable one and is generally consistent with guidelines established by the city's Comprehensive Plan and Zoning Ordinance. We find it to be well designed with only modest revisions being required. We are recommending that it be approved with conditions outlined in the report. BACKGROUND ' On June 22, 1992, the City Council reviewed the preliminary plat #92 -5, Rezoning #92 -3, and Wetland Alteration Permit #92 -6 for Bluff Creek Estates and recommended approval of this application. FINAL PLAT The applicant is proposing to subdivide a 61.45 acre site into 20 single family lots and four outlots. All outlots with the exception of Outlot A are reserved for future single family development. The density of the proposed subdivision is 1.27 units per acre gross, and 2.3 units per acre net after removing the wetland and roads. All the lots meet or exceed the minimum 15,000 square feet of area with an average lot size of 18,904 square feet. Lot 7, Block 3, which has a street frontage of 87 feet is not in compliance with the Zoning Ordinance. The Zoning Ordinance requires a 90 foot frontage for single family lots. Staff is recommending that the applicant revise the fmal plat and provide the required 90 foot frontage. The western P ortion of the site containing outlot A is not a buildable lot, and contains Bluff Creek and an associated wetland. The Park and Recreation Commission is recommending that the city acquire ownership of Outlot A, allowing for continuation of the Bluff Creek preservation corridor. ' Staff notes that the proposal is consistent with the Comprehensive Plan and generally consistent with the Zoning Ordinance. 1 Final Plat - Bluff Creek Estates August 24, 1992 Page 4 Grading and Drainage 1 The overall site development plan proposes to construct the development in four phases with the initial phase proposed as Bluff Creek Estates 1st Addition located in the southeast corner of the development adjacent to Audubon Road. Included with the site grading is the construction of two temporary sedimentation basins for treatment of the storm runoff generated from this phase. 1 The grading plan has been altered per staff's recommendations to minimize runoff towards Audubon Road. The street ades within the development have been modified to comply with the City ordinance �' P P Y of 7% maximum grade. House pad elevations have been revised to fall within the City's guidelines for driveway grades of less than 10 %. The plans propose a series of storm sewers to 1 convey runoff from the development into two temporary sedimentation basins. The basins appear to be designed in accordance with the Watershed District's best management practice handbook; however, some additional information is required on the construction plans and will be addressed with the plans and specification review process. Based on storm sewer calculations, it appears additional storm sewers may be necessary. Staff again will be working with the developer's 1 engineer to develop a plan to adequately handle the runoff. Staff still has not received earthwork calculations to determine if the site earthwork balances or 111 if the site requires imported material or to export. Staff still request this information to determine if appropriate traffic signage will be required or additional financial security requirements are necessary. 1 Utilities On July 27, 1992, the Chanhassen City Council approved the construction plans for the Upper 1 Bluff Creek trunk sewer and water improvements which will service this phase of the development. The City's project is being phased in an effort to complete a portion of the trunk gravity sewer service to service this development. Staff anticipates this segment of the trunk improvements to be operational sometime in the fall of 1992. The utility construction plans for Bluff Creek Estates 1st Addition have been reviewed by staff. The plans are generally acceptable with some minor modifications which will be worked out between staff and the developer's engineer. Watermain sizing should be verified by the applicant's engineer. Detailed calculations demonstrating sufficient fire flow during peak demand should be supplied to the City Engineer 1 for review. Final construction plans and specifications have been prepared in conjunction with this final plat. The overall utility and street construction plans and specifications have been prepared in general accordance with the City's standard specifications and detail plates subject 1 to minor modifications. 1 1 1 1 ' . Final Plat - Bluff Creek Estates August 24, 1992 Page 5 1 Streets This phase of the development proposes one access on Audubon Road. The first phase is scheduled to terminate with a temporary cul -de -sac at the end of Valley Ridge Trail South. A temporary road easement will be required by the applicant for the temporary cul-de -sac. ' This phase of the development does not propose to construct a northerly entrance to the development (Valley Ridge Trail North). Lot 1, Block 1 contains an existing Chaska brick home which has a horseshoe driveway with two access points on Audubon Road. Staff and City Council previously recommended that one access be eliminated with the development. Staff still supports this recommendation but may defer removal of one of the driveways until the Valley ' Ridge Trail North street is constructed. Lot 2, Block 1 should be restricted to access off of the interior street (Valley Ridge Trail South) only. It is understood that this lot is also being considered for a model home and the applicant is requesting a temporary entrance from Audubon ' Road until the streets are completed in the development. Staff finds this acceptable with the understanding that the permanent driveway will be from Valley Ridge Trail South when the street ' is completed with the first lift of bituminous. Erosion Control A series of erosion control fences are being implemented throughout the development. Staff has reviewed the erosion control measures and finds them acceptable. 1 Miscellaneous ' On Lot 1, Block 1 the existing Chaska brick home will become within 150 feet of municipal / sanitary sewer. In accordance with the City Code, the house will be required to connect to municipal sanitary sewer within one year after the sewer has been made available. A sanitary 1 sewer service stub is being provided with the Qty's trunk improvement project for this lot. The rear lots within Block 2 drain westerly to a storm sewer catch basin. All the lots with the exception of Lot 4 contain a 10 -foot backyard drainage easement. It is recommended that a 10- foot wide drainage and utility easement also be conveyed on the final plat along the northerly lot line of Lot 4, Block 2. To insure the temporary sediment basins are maintained and drainage areas protected, it is recommended that a temporary drainage easement be conveyed to the City for the temporary ' ponding areas and storm sewer line to Bluff Creek. 1 1 1 1 Final Plat - Bluff Creek Estates August 24, 1992 Page 6 1 Landscaping The recently adopted Landscaping and Tree Preservation requirements state that a landscape 1 buffer is required when a subdivision plat is contiguous with a collector street. Required buffering shall consist of berms and landscape materials consisting of a mix of trees and shrubs I and/or a tree preservation area. The plan identifies plant material locations along Audubon Road as well as a single planting (21" Norway Maple). Appropriate financial security will be required. 1 The northern edge of the site will be buffered by a 100 foot wide landscaped area from the Chanhassen Business Center, as designated in the Comprehensive Plan. 1 Park and Recreation The Park and Recreation Commission recommended the City Council require full park fees be 1 paid as a condition of approval of Bluff Creek Estates. Fees to be paid at the time of building permit approval in the amount of the park fee in force at the time of building permit application. 1 The final plat identifies the western 19.7 acres of the site as an outlot. This entire area is below 1 the 100 year flood elevation and will contain a portion of the Bluff Creek Corridor turf trail identified in the city's Comprehensive Plan. This outlot extends to the east in a bottle -neck fashion, abutting proposed Valley Ridge Trail South, allowing for pedestrian access from the 1 residential street. The second trail associated with this site is the proposed Audubon Road off - street alignment. Through consultation with the city's engineering department, it has been determined that no additional right -of -way is necessary if this trail is to be constructed west of 1 Audubon Road. The Park and Recreation Commission recommended that the City Council acquire ownership of 1 Outlot A, allowing for continuation of the Bluff Creek preservation corridor, and require the installation of an 8 foot bituminous trail surface from the west edge of proposed Valley Ridge I Trail to outlot A as a condition of approval of this plat. In consideration for this, it is recommended that the city give full trail fee credit to the applicant. 1 1 1 1 1 1. I Final Plat - Bluff Creek Estates August 24, 1992 Page 7 1 COMPLIANCE WITH ORDINANCE - RSF DISTRICT 1 Lot Lot Home Home Area Width Depth Setback 1 Ordinance 15,000 90' 125' 30' front/rear 10' sides 1 BLOCK 1 Lot 1 55,350 192/263 227 1 Lot 2 35,700 156/166 218.5 1 Lot 3 21,050 169 156.5 Lot 4 17,300 100 194.5 1 Lot 5 18,550 100 190 1 Lot 6 17,900 108 170 1 BLOCK 2 I Lot 1 15,200 106 142 Lot 2 15,100 102 147.5 1 Lot 3 15,300 119/141 123.5 1 Lot 4 18,700 236 152 Lot 5 15,200 105 145 1 Lot 6 15,200 105 145 1 BLOCK 3 1 Lot 1 15,250 223 139 1 1 I Final Plat - Bluff Creek Estates August 24, 1992 Page 8 Lot 2 15,000 103 145 1 Lot 3 15,000 90 148 I Lot 4 18,150 78 175 Lot 5 27,950 78 203 1 Lot 6 18,250 78 175 1 Lot 7 15,500 87 * 145 Lot 8 15,000 100 150 1 * Variance required: Proposed Lot 7, Block 3, has a lot frontage of 87 feet. The zoning I ordinance requires single family parcels to have a lot frontage of 90 feet. The applicant shall revise the plat to reflect a minimum lot width of 90 feet. 1 RECOMMENDATION Staff recommends the City Council adopt the following motions: 1 "The City Council approves Subdivision #92 -5 as shown on the plans dated July 24, 1992, I subject to the following conditions: 1. The applicant shall supply earthwork calculations to the City for review. 1 2. All utility and street improvements shall be constructed in accordance with the current I edition of "City's Standard Specifications and Detail Plates." Detailed street and utility construction plans and specifications shall be submitted for City Council approval. 3. The applicant shall apply and obtain permits from the Watershed District, DNR and other 1 appropriate regulatory agencies and comply with their conditions of approval. 4. Watermain systems shall be designed to ensure adequate fire flow for the site. Design 1 calculations shall be submitted to the City Engineer to verify pipe size. 5. The applicant shall enter into a development contract with the city and provide the 1 financial security to guarantee compliance with the terms of the development contract. 1 1 1 Final Plat - Bluff Creek Estates August 24, 1992 Page 9 1 6. All lots shall access from interior streets and not Audubon Road with the exception of Lot 1, Block 1, which will have one access point of off Audubon Road. 1 7. The final plat shall be amended to include a 10 -foot wide drainage and utility easement along the northerly 10 feet of Lot 4, Block 2. 8. All necessary permits shall be obtained from the pipeline company for any grading or construction activity within the pipeline easement. 9. A temporary road easement shall be dedicated for the temporary cul -de -sac at the end of Valley Ridge Trail South. 10. Temporary drainage easements shall be conveyed to the City for the temporary sediment basins (A and B). ' 11. The existing house on Lot 1, Block ! shall connect to municipal sanitary sewer within one year after the sewer is made available. The property owner shall also pay the appropriate 1 fees associated with connection to the municipal sewer line. 12. Outlot A shall be deeded to the city. In consideration for this, full trail fees will be 1 credited. 13. The developer understands and agrees not to hold the City responsible for any additional costs that may occur should there be delays beyond the City's control in providing trunk sanitary sewer and water service to the site. 14. Proposed Lot 7, Block 3, has a lot frontage of 87 feet. The applicant shall revise the final plat to reflect a minimum lot width of 90 feet. 1 15. The developer shall acquire the required utility construction permits from the PCA and Minnesota Department of Health. 16. The applicant shall meet the conditions of the Rezoning #92 -3 and the Wetland Alteration Permit #92 -6. 1 17. All areas disturbed during site grading shall be immediately restored with seed and disc - mulched or wood fiber blanket within two weeks of completing site grading unless MNDOT's planting dates dictate otherwise. All areas disturbed with slopes of 3:1 or greater shall be restored with sod or seed and wood fiber blanket." 1 1 1 1 Final Plat - Bluff Creek Estates August 24, 1992 Page 10 ATTACHMENTS 1. Memo from Dave Hempel dated August 20, 1992. 1 2. City Council minutes dated June 22, 1992. • 3. Staff report dated June 22, 1992. 4. Final plat dated July 24, 1992. 1 1 1 1 1 1 1 1 1 1 1 1 1 1 CITYOF I 1 CHANHASSEN ,1 6 90 COULTER DRIVE • P.O. BOX 147 • CHANHASSEN, MINNESOTA 55317 (612) 937 -1900 •FAX (612) 937 -5739 1 i MEMORANDUM • 1 " TO: Sh TO: armor Al -Jafi j Planner I 1 FROM: Dave Hempel, Sr. Engineering Technician 1,/ I DATE: August 20, 1992 SUBJ: Review of Final Plat for Bluff Creek Estates 1st Addition Project No. 92 -10 is I Upon review of the final plat, grading, drainage and utility plans prepared by James R. Hill, Inc., I offer the following comments and recommendations: I GRADING AND DRAINAGE Y The overall site development plan proposes to construct the development in four phases I with the initial phase proposed as Bluff Creek Estates 1st Addition located in the southeast corner of the development adjacent to Audubon Road. Included with the site grading is the construction of two temporary sedimentation basins for treatment of the storm runoff I generated from this phase. The grading plan has been altered per staff's recommendations to minimize runoff towards Audubon Road. I The street grades within the development have been modified to comply with the City ordinance of 7% maximum grade. House pad elevations have been revised to fall within the City's guidelines for driveway grades of less than 10 %. The plans propose a series of I storm sewers to convey runoff from the development into two temporary sedimentation basins. The basins appear to be designed in accordance with the Watershed District's best management practice handbook; however, some additional information is required on the 1 construction plans and will be addressed with the plans and specification review process. Based on storm sewer calculations, it appears additional storm sewers may be necessary. Staff again will be working with the developer's engineer to develop a plan to adequately 1 handle the runoff. Staff still has not received earthwork calculations to determine if the site earthwork balances or if the site requires imported material or to export. Staff still request this information to 1 • % PRINTED ON RECYCLED PAPER 1 Sharmin Al -Jaff August 20, 1992 Page 2 1 determine if appropriate traffic signage will be required or additional financial security requirements are necessary. 1 UTILITIES • On July 27, 1992, the Chanhassen City Council approved the construction plans for the 1 Upper Bluff Creek trunk sewer and water improvements which will service this phase of the development. The City's project is being phased in an effort to complete a portion of the trunk gravity sewer service to service this development. Staff anticipates this segment of the trunk improvements to be operational sometime in the fall of 1992. The utility construction plans for Bluff Creek Estates 1st Addition have been reviewed by staff. The plans are generally acceptable with some minor modifications which will be worked out between staff and the developer's engineer. Watermain sizing should be verified by the applicant's engineer. Detailed calculations demonstrating sufficient fire flow during peak demand 1 should be supplied to the City Engineer for review. Final construction plans and specifications have been prepared in conjunction with this final plat. The overall utility and street construction plans and specifications have been prepared in general accordance with the City's standard specifications and detail plates subject to minor modifications. STREETS 1 This phase of the development proposes one access on Audubon Road. The first phase is scheduled to terminate with a temporary cul -de -sac at the end of Valley Ridge Trail South. 1 A temporary road easement will be required by the applicant for the temporary cul -de -sac. This phase of the development does not propose to construct a northerly entrance to the 1 development (Valley Ridge Trail North). Lot 1, Block 1 contains an existing Chaska brick home which has a horseshoe driveway with two access points on Audubon Road. Staff and City Council previously recommended that one access be eliminated with the development. Staff still supports this recommendation but may defer removal of one of the driveways until the Valley Ridge Trail North street is constructed. Lot 2, Block 1 should be restricted to access off of the interior street (Valley Ridge Trail South) only. It is understood that this lot is also being considered for a model home and the applicant is requesting a temporary entrance from Audubon Road until the streets are completed in the development. Staff finds this acceptable with the understanding that the permanent driveway will be from Valley Ridge Trail South when the street is completed with the first lift of bituminous. EROSION CONTROL 1 A series of erosion control fences are being implemented throughout the development. Staff 1 has reviewed the erosion control measures and finds them acceptable. 1 1 1 Sharmin Al -Jaff August 20, 1992 Page 3 1 MISCELLANEOUS 1 On Lot 1, Block 1 the existing Chaska brick home will become within 150 feet of municipal sanitary sewer. In accordance with the City Code, the house will be required to connect to municipal sanitary sewer within one year after the sewer has been made available. A sanitary sewer service stub is being provided with the City's trunk improvement project for this lot. The rear lots within Block 2 drain westerly to a storm sewer catch basin. All the lots with the exception of Lot 4 contain a 10 -foot backyard drainage easement. It is recommended 1 that a 10 -foot wide drainage and utility easement also be conveyed on the final plat along the northerly lot line of Lot 4, Block 2. To insure the temporary sediment basins are maintained and drainage areas protected, it is recommended that a temporary drainage easement be conveyed to the City for the temporary ponding areas and storm sewer line to Bluff Creek. RECOMMENDED CONDITIONS OF APPROVAL 1 1. All utility and street improvements shall be constructed in accordance with the current edition of the City's Standard Specifications and Detail Plates. Detailed 1 street and utility construction plans and specifications shall be submitted for City Council approval. 2. The applicant shall apply for and obtain permits from the Watershed District, DNR or other appropriate regulatory agencies in comply with conditions of approval. 3. The watermain system shall be designed to insure adequate fire flow protection for the site. Detailed design calculations shall be submitted to the City Engineer to verify pipe diameter. 1 4. The applicant shall enter into a development contract with the City and provide the financial security to guarantee compliance with the terms of the development 1 contract. 5. All lots shall access the interior streets and not Audubon Road except for Lot 1, Block 1. One of the two driveway accesses from Lot 1, Block 1 shall be eliminated with the construction of Valley Ridge Trail North. 6. The final plat shall be amended to include a 10 -foot wide drainage and utility easement along the northerly 10 feet of Lot 4, Block 2. 1 1 1 Sharmin Al -Jaff August 20, 1992 Page 4 I 7. All necessary permits shall be obtained from the pipeline company for any grading or construction activity within the pipeline easement. 1 8. The applicant shall supply earthwork calculations to the City for review. 9. A temporary road easement shall be dedicated for the temporary cul-de -sac at the I end of Valley Ridge Trail South. 10. Temporary drainage easements shall be conveyed to the City for the temporary I sediment basins (A and B). 11. The existing house on Lot 1, Block 1 shall connect to municipal sanitary sewer within 1 one year after the sewer is made available. The property owner shall also pay the appropriate fees associated with connection to the municipal sewer line. 1 12. The developer understands and agrees not to hold the City responsible for any additional costs that may occur should there be any delays beyond the City's control 1 in providing trunk sanitary sewer and water service to the site. ktm 1 1 1 1 1 1 1 1 1 1 other properties. Is the dock setback, does it have to oe specified? Is it just a city ordinance that's going to be enforced? Where do we stand on that? Paul Krauss: Roger gave us a reading on that. Mayor Chmiel: That was last time. 1 Paul Krauss: Whether it's applicable after the fact. • Roger Knutson: As you'know I'm preparing, I finished the draft today of revisions on the dock setback ordinance. All we're doing today is defining what was there in 1982. ..modifying it. Not saying it's good, bad or indifferent or anything else. Here's what was there in 1982. Councilwoman Dimler: So I'm also understanding that that includes all the other Planning Commission recommendations as well in this same motion? Paul Krauss: Yes. Councilwoman Dimler: The canoe rack, the two docks, the boat launch, the portable toilet and the milfoil sign. Mayor Chmiel: Yes. Councilman Mason coved, Councilman Workman seconded to approve the Non - Conforming Recreational Beachiot Permit for Pleasant Acres Homeowners Association to include motor vehicle access, off street parking for 10, one boat launch, two seasonal docks (96' x 67' and 96' x 12'), one canoe rack, 10 boats docked, swimming beach, marker buoys, swimming raft, 7 power lifts and a portable chemical toilet. All voted in favor and the motion carried unanimously. S BLUFF CREEK ESTATES, KEYLAND HOMES. LOCATED SOUTH OF HIGHWAY 5 ON THE EAST SIDE A' , OF AUDUBON ROAD: A. REZONING FROM A2, AGRICULTURAL ESTATES TO RSF. RESIDENTIAL SINGLE FAMILY. B. PRELIMINARY PLAT TO SUBDIVIDE 61.45 ACRES INTO 78 SINGLE FAMILY HOMES. I (J-1° C. WETLAND ALTERATION PERMIT FOR CONSTRUCTION WITHIN 200 FEET OF A WETLAND. , , tt I p Sharmin Al - Jaff: The applicant is requesting to subdivide a 61.45 acre site II ¢ into 78 single family lots. Access to the subdivision will be provided by a looped road off of Audubon Road. It is proposed to be developed in four phases. All of the proposed lots meet the minimum requirements of the Zoning Ordinance with one exception. Lot 8 has an existing garage. The proposed rear property line is setback at 20 feet from the garage. The ordinance requires a 30 foot setback. The Planning Commission was strongly opposed to a variance to the rear yard setback and they recommended that the applicant adjust the property line to eliminate this variance. There is a wetland on this site. The wetland includes the protected water of course of Bluff Creek. It is contained within Outlot A. The applicant is not proposing to disturb this wetland. However, out ordinance requires any development within 200 feet to receive a wetland alteration permit. 11 We are recommending approval of the wetland alteration permit with conditions outlined in the report. The applicant is also requesting to rezone the property 21 • 1 City Council Meeting - June ?', 5992 from A2 to Residential Single Family. This is consistent with the 1 Comprehensive Plan. We are recommending approval of the rezoning. There is one issue that was brought up at the Planning Commission and we would like to bring it to your attention as well. There is an existing driveway on the site. It's in the shape of a horseshoe. Staff had recommended that this driveway be eliminated. It accesses off of Audubon road. We also recommended that access to Lot 8 would be through Lot 7 so that would require a cross access easement. The applicant requested that he maintain his existing driveway.. A couple of issues with that is one, we have some safety concerns. Second issue is the driveway will be encroaching onto the deceleration lane. Charles might want to elaborate further on that. Other than that, we are recommending approval of this application with conditions outlined in the report. Mayor Chmiel: What is that distance from the existing driveway to the proposed road that will go in? Sharmin Al -Jaff: I'm sorry Mr. Mayor. 1 Mayor Chmiel: What is the distance between the driveway and the road? How many feet? Sharmin Al -Jaff: It's approximately 200 feet. Mayor Chmiel: What's the distance requirements between one point to the other Charles without it causing any problems? The sight lines. Charles Folch: Well, the City has no ordinance governing the spacing of driveways as say for example Carver County would have. In general we would typically use MnDot's standards for, or based on the design speed of the road, for spacing of intersections. What the critical situation here is that for the two entrances into the subdivision, we're proposing to construct right turn lanes into the subdivision and what you end up having with the driveway there is you have a driveway coming out which will access right basically in the taper section of the turn lane. While this is not an ideal situation, it's not unique. These situations do occur on other rural type highways. In general we would prefer not to see it but it's something we could work around if it came down to that. Mayor Chmiel: Okay with speeds that are existing now, was that 50 in there now? Charles Folch: It's 50 at that portion of the roadway. , Mayor Chmiel: As the area progresses and more residential goes in, will that continue to be that speed limit there? Charles Folch: Probably not. It will probably get downgraded to either 40 or 45 mph. Councilwoman Dimler: I had a question on the sight line. It runs east and west there pretty much through the property and I don't know how deep it is. But I also know that you're not supposed to put a structure on top of the pipeline? Sharmin Al -Jaff: Correct. 22 1 1 City Council Meeting - lune 22, 1992 II • Councilwoman Dimler: I saw that a portion of the road does cover it. That Road E. Sharmin Al -Jaff: They allow roads, sidewalks to go over the pipeline. It is 3 feet deep. I Mayor Chmiel: Their main concern basically with Williams Pipeline is that there's not weight distributed on top because then that causes reactions down below and could... 1 Councilwoman Dimler: That won't be a problem in the future then itself? Mayor Chmiel: It should not. Sharmin Al Jaff: I called and asked them and they said they had no problems with that. ' Mayor Chmiel: Is there anyone from the subdivision that would like to discuss this? Just please state your name and who you're representing and your address please. Jim Hill: Your Honor. My name is Jim Hill. I'm a consultant for Keyland and the fee owner, Rod Grams. Principle is Dick Schuller is here with us this evening. The petitioner has agreed with the recommendations of staff and the Planning Commission recommendations with the exception of the driveway. We talked to staff and we are in agreement to connect the acceleration and the deceleration lane in front of and between the two accesses off of Audubon so that the driveway, assuming that, although Mr. Grams would like both of them left as is, he can see that one would have to be taken out. The northerly one, ' which is to the right on the picture there. And that the existing driveway to the historic home, which Mr. Grams has been asked to keep because of the architecture and also the Chaska brick. He would like to and he's selling that on the basis of the two lots. There will not be two lots there. There will be ' one because the real estate and marketplace has indicated that the historic home and it's setting needs the driveway. Should have the driveway that has always existed and the larger lot. So the two lots will be combined into one. So that there would be an additional lane then inbetween the two openings off of Audubon in which then that one driveway would enter. He is asking for at least that in the preservation of the site. Thank you. Mayor Chmiel: Thank you. Any discussion? Michael. Councilman Mason: I say let them keep the driveway. I understand the City Engineer's position but like Charles said, they're already out there and clearly it sounds to me like the speed limit's going to be getting lowered on that road in a matter of years anyway. There is certainly something to be said for the historic preservation. Other than that I'm fine with it. I'm a little concerned. What's your client's feeling about not, I think I missed that about the variance for the shed. Are they willing to adjust the lot line? Jim Hill: Your Honor, we have looked at the lot line and we will adjust it... Councilman Mason: That's about all I have on it. 1 23 1 City Council Meeting - Jun- 22, 1992 Mayor Chmiel: Thank you. Tom. . 11 Councilman Workman: Yeah, the two issues are the roadway and setback, right? Mike and I were both talking about it. Mike ended up saying what I thought he was going to say about, big deal. Was that your comment? Councilman Mason: Well kind of. ' Councilman Workman: But you know the same thing with me. We're not talking about a whole lot of trips. The darn access has been there forever. Granted there hasn't been two, one to the north and one to the south that close but I don't, and I can't get worried about that and if they move the lot line, then great. Councilman Wing: I concur with Tom and Mike and I think preservation of what they have there is...That's part of our historic background. I guess I really have no comment because this is all up front and it's by the rules in effect. If I could just whine slightly to say, we pat ourselves on the back and we cheer when we moved the MUSA line and we opened up 3,000 acres for development as if the land couldn't be developed if we hadn't done it. But by opening it up, everything that comes before me is this mass of little lots and mass of rows and mass of houses and ohhh. I say what are we doing. So it's wonderful we opened this up but it's all coming back this way. Now this is standard subdivision and this, now Paul. Don't look that way. I just couldn't resist. Was a PUD considered and was there any advantages to a PUD? Paul Krauss: No not really on this site. Early on when we first net there was a question of using PUD to reduce lot sizes below 15,000. I told them that that really wasn't appropriate. You're talking about a site really that does not have a whole lot of character. Councilman Wing: Yep, I agree. The lots are larger. Councilwoman Dimler: I concur with the drive. Keeping the driveway and I'm glad to see that they'll adjust to avoid a variance situation. I'm also wondering if they could adjust to avoid the wetland alteration permit. Could you comment on that? Paul Krauss: I think what we really have to do is adjust the ordinance so it doesn't require one. They're not in the wetland. They're only near one and our .ordinance is a little strange on that. 1 Councilwoman Dimler: So it's our ordinance problem, not the problem with the lot configuration? 1 Paul Krauss: Not only are they not going to be in there, but they're dedicating it all to the city anyway. Councilwoman Dimler: Good. I have no problem then. Councilman Mason: I'd just like to make a quick comment if I could about the landscaping. It's always refreshing to see people doing more than they need to to make something look nice like that. Thank you. Thanks. 24 1 1 z.iLy LUI11IG11 neerzng .June cc, 1774 II Mayor Chmiel: I went through this quite readily and there's variation of all different sized lots and I came up with, I might have missed one but about 9 that only are at 15,000 square feet. All the rest are over and above and many with 27,000. Some were 29,000. Some that are, I believe that was probably pretty close to being the largest. But the overall, no there was one. It was 35,000 and that was the biggest but in looking at this I came up with 9 of those that were 15,000 square feet which I felt was very well done. I think it will prove to be a good development for it. There's one question that I had left. The outlot. What size acreage was that? Do you have any idea? 19 acres. Okay. Just for my own concern. Other than that I guess I don't have any real concerns with what's going in and I think that it will prove to be beneficial. Richard. Councilman Wing: Just one quick question. Paul, just for my anxiety level, can I just assume that everything that occurs within the MUSA line boundary from this day on are going to be 15,000 foot square lots or smaller in PUD? I mean is that just fact? 1 Mayor Chmiel: That's by ordinance, 15,000. ' Councilman Wing: No, no, minimum. Can I just assume they're going to be 15,000 foot subdivisions or PUD's slightly smaller? I mean that's pretty much financially what's going to dominant? Paul Krauss: I think you can expect that but I think the Mayor made a very good point here. That out of the 70 lots, 9 of them were at the minimum. • ' Councilman Wing: No, I like this one. Paul Krauss: And above that. Again, I mean they're making a silk purse out of a sows ear a little bit here. I mean you've got a green space that's being dedicated. They're adding a lot of landscaping to basically a soybean field. When you're dealing with much more rolling terrain with more wetlands and trees, the lots tend to be a lot bigger than that anyway. 1 Mayor Chmiel: Okay with that I'd like to request a motion for each one separately. The first one I'll request is a rezoning from A2 to RSF, 92 - and ' with the two conditions contained. Councilman Wing: Mr. Mayor, I'll so move as stated by yourself. Councilwoman Dimier: Second. Councilman Wing moved, Councilwoman Dimler seconded to approve Rezoning 192 -3 property A -2 to RSF with the following conditions: 1. The applicant shall enter into a development contract containing all of the conditions of approval for this project and shall submit all required financial guarantees. The development contract shall be recorded against the property. 2. The applicant shall meet all conditions of the Subdivision 192 -5 and Wetland Alteration Permit #92 -6. 25 1 L1lj l.VU111.11 IIGG 1111W .UIIG LL, .1.11G. All voted in favor and the motion carried unanimously. 1 Mayor Chmiel: The second will be the preliminary plat to subdivide the 61.45 acres into 78 single family lots and approving the Subdivision #92 -5 as shown on plans dated May 4, 1992 subject to the following conditions of item 1 thru 17. Councilman Mason: So moved. Councilwoman Dimler: Second. Councilman Mason moved, Councilwoman Dialer seconded to approve Subdivision 1 192 -5 as shown on the plans dated May 4, 1992 subject to the following conditions: • 1 1. All storm sewer drainage pipes should be designed for a 10 year frequency storm utilizing a rational method. Storm drainage retention pond, detention areas and outlet piping shall be designed for a 100 year frequency, 24 hour single event using the "SCS Method" established for use in Minnesota. The discharge rate shall not exceed the pre - developed runoff rate. Ponds shall also be designed to "NURP" standards. 1 2. All utility and street improvements shall be constructed in accordance with the current edition of "City's Standard Specifications and Detail Plates." Detailed street and utility construction plans and specifications shall be submitted for City Council approval. 3. The applicant shall apply and obtain permits from the Watershed District, ONR and other appropriate regulatory agencies and comply with their conditions of approval. 4. Watermain systems shall be designed to ensure adequate fire flow for the site. Design calculations shall be submitted to the City Engineer to verify pipe size. 1 5. The applicant shall enter into a development contract with the city and provide the financial security to guarantee compliance with the terms of the development contract. The final plat shall be contingent upon the City Council authorizing and awarding a public improvements project for the extension of trunk sanitary sewer and water facilities to service the site. 6. All lots shall access from interior streets and not Audubon Road, except 1 for the existing historic Chaska brick home. Street grades shall not exceed the 7% maximum street grade per City ordinance. A deceleration/ acceleration lane shall be provided on Audubon Road. The center island shall be deleted from the southerly access street (Road E). 7. The final plat shall be amended to include expanding the 15 foot wide drainage and utility easements to 20 feet wide and extending the drainage easements through Lots 12 and 13, Block 1. The following easements shall be provided: 1 a. Dedication of all street right -of -way. 26 1 1 - b. Conservation and drainage easements over all protected wetland and ponding areas. Provide access easements to allow the City to maintain all ponding areas. c. A 20 foot wide utility and drainage easements over all sewer, water and storm sewer lines located outside public right -of -way. d. Conservation easements over areas designed by staff. e. Standard drainage and utility easements along each lot line. ' f. Dedication of Outlot A to the City. 8. All necessary permits shall be obtained from the pipeline company for any grading or construction activity within the pipeline easement. ' 9. Fire hydrants should be spaced approximately 300 feet apart throughout the subdivision in accordance with the Fire Marshal's recommendations. 10. All areas disturbed during site grading shall be immediately restored with seed and disc - mulched or wood fiber blanket within two weeks of completing site grading unless MnOot's planting dates dictate otherwise. All areas disturbed with slopes of 3:1 or greater shall be restored with sod or seed and wood fiber blanket. 11. Until Phase II improvements are completed, interim sediment and /or retention ponds shall be constructed and maintained by the applicant to 1 accommodate Phase I storm runoff. The applicant shall amend the grading plan to take into consideration the runoff from the back yards for Phase I to accommodate future upgrading of Audubon Road (urban design). The grades ' on Lots 25 and 26, Block 3 shall be redesigned so the driveway grades do not exceed 10'c. The applicant shall supply earthwork calculations for both phases to the City Engineer for review. Erosion control fence along the westerly portion of the development (Phase II) adjacent to the wetlands shall be the City's Type III. Additional erosion control fence (Type I) shall be installed on Lots 7, 14, and 15, Block 3 and Lots 8, 10, and 11, Block 1 as check dams. 12. Outlot A shall be deeded to the City. In consideration for this, full trail fees will be credited. An 8 foot wide bituminous trail shall be . ' constructed from proposed Road E to the rear of Lot 1, Block 1, and Lot 1, Block 3. ' 13. The applicant shall convey to the City a temporary street easement for the temporary cul -de -sac at the end of Road E. In addition, a sign shall be installed on the barricades stating that the street will be extended in the future. All street right -of -way for all plat phases to be dedicated with Phase I platting. 14. The developer shall acquire the required utility construction permits from 1 the PCA and Minnesota Department of Health. 27 1 • 15. The applicant shall meet the conditions of the Rezoning #92 -3 and the Wetland Alteration Permit #92 -6. 16. The applicant should work out with city staff to provide whether or not Lots 10 and 14, Block 2 are in fact buildable between the Planning Commission and City Council meeting. 17. Trees designated for preservation shall be protected by snow fence or other ' means acceptable to the City. All voted in favor and the motion carried unanimously. ' Mayor Chmiel: The third is the Wetland Alteration Permit for construction within 200 feet of a wetland. And that consists of Wetland Alteration Permit #92 -6 with the following conditions of items 1 thru 4. Councilman Workman: So moved Mayor. - Councilwoman Dimler: Second. Councilman Workman moved, Councilwoman Disler seconded to approve Wetland Alteration Permit *92-6 with the following conditions: 1. All wetland areas will be protected during construction by Type III erosion control. The erosion control shall be maintained in good condition until the disturbed areas are stabilized. 2. The wetland area remain undisturbed. ' 3. The applicant shall receive a permit from the Watershed District. 4. The applicant shall meet all conditions of the Subdivision #92 -5 and ' Rezoning #92 -3. All voted in favor and the motion carried unanimously. Jim Hill: ...the driveway? Mayor Chmiel: The driveway in my estimation, by everyone indicating that there r was no concerns, was to be remain in existing and that's the addendum to that notion. c 9` INTERIM USE PERMIT FOR EARTH WORK/MINING OF A GRAVEL PIT. 100 FLYING CLOUD ,e & DRIVE. TOM ZWIERS. MOON VALLEY AGGREGATE. Paul Krauss: Mr. Mayor, first thing you should know on this is that Thursday afternoon after the packet was printed, we got a letter from Mr. Iwiers' attorney requesting a continuance stating that both he and Mr. Zwiers would be unavoidably absent from tonight's meeting. Mr. Brill does have an associate attorney here tonight for that. Now Roger and I had some conversations on this I think Friday morning to determine what the course of action should be and a couple things about that. In the past Mr. Mayor, after we've had items printed in the newspaper as being on the agenda and notify people in fact, in the past 28 1 1 v i T Y OF Pc, DATE: June 3 1 2 \ rl 8 C 11 A 111 A CC DATE: June 22,1992 CASE #: 92 -5 SUB, 92 -3 REZ 92 -6 WAP 1 1 - STAFF REPORT 1 PROPOSAL: 1) Preliminary Plat to subdivide 61.45 Acres into 78 Single Family Lots and one outlot 1 2) Rezoning of property from A -2, Agricultural Estate District to RSF, Z Residential Single Family District 1 fi 3) Wetland Alteration Permit V 1 . 1 LOCATION: North of Sun Ridge Court, south of Chanhassen Business Center, and a_ west of Audubon Road. I < APPLICANT: Keyland Homes Rod Grams 14450 Burnsville Parkway 8640 Audubon Road Burnsville, MN 55337 Chanhassen, MN 55317 1 PRESENT ZONING: A -2, Agricultural Estate District ACREAGE: 61.45 acres (gross) 33.85 acres (net) 1 DENSITY: 1.27 u/a (gross) 2.23 u/a (net) • I ADJACENT ZONING AND LAND USE: N - IOP; Chanhassen Business Center S - RR; Sun Ridge Subdivision 1 i.5 E - A -2; Agricultural Estate District W - A -2; Agricultural Estate District r LS WATER AND SEWER: Available to the site W PHYSICAL CHARACTER.: The area has rolling hills. The majority of the site is being 1 1' farmed. Mature elm trees are located along the north edge. (n An existing single family residence, barn, and garage occupy the northeast portion of the site. A Class A wetland and Bluff 1 Creek occupy the westerly portion of the site. 2000 LAND USE PLAN: Low Density Residential 1 occupy the northeast portion of the site. A Class A wetland and Bluff Creek occupy the westerly portion of the site. 2000 LAND USE PLAN: Low Density Residential ' • PROPOSAL /SUMMARY 1 The applicant is requesting approval to subdivide a 61.45 acre site into 78 single family lots. One of the lots will be occupied by an existing home. The balance will be available for new construction. The site is located west of Audubon Road, north of Sun Ridge Subdivision, and south of Ryan's Chanhassen Business Center. Access to the subdivision will be provided by a loop road off Audubon Road. , All of the proposed lots meet the minimum requirement of the Zoning Ordinance with one exception. Proposed . Lot 8, Block 2 is occupied by the existing residence and a garage. 1 Presently, access to this site is gained from Audubon Road. The garage will be located approximately 20 feet from the rear property line. City ordinances require that any detached accessory structure in excess of 400 square feet maintain a distance of 30 feet from the rear , property line. The garage has an approximate area of 900 square feet. Mature maple trees separate the existing garage from proposed Lot 5, Block 2, creating a natural buffer. We find this intrusion into the rear yard setback acceptable, and recommend approval of the rear yard setback variance for the garage. The Planning Commission was strongly opposed to the rear yard setback variance, and recommended that the applicant adjust the property lines to 1 eliminate the variance. The Bluff Creek Estates site was located outside of the MUSA line until the recent MUSA expansion that was approved by the Metropolitan Council in May of 1991. This area is in the Bluff Creek Sewer Feasibility Area recently approved by the City Council. Sewer service to this area could be available in the fall of 1992 at the earliest. Water service will also be available. The applicant is proposing to develop this area in four phases. The first phase would include Lots 8 through 13, and Lots 18 through 23, Block 2, and Lots 18 through 25, Block 3. The applicant would like to construct one model home located on Lot 9 of Block 2 for the Parade of Homes, which begins the first week of September. This home is proposed to share the driveway with the existing home, until such time when the proposed street to the south of Lot 9 is constructed. Williams Pipe Line Company has a 75 foot wide easement that runs east and west through the property. It is city policy, as well as utility companies, not to allow any structure to be constructed within an easement. Staff questions the design of two lots that abut the pipe line easement (Lots 10 and 14, Block 2) due to limitations on the buildable area imposed by the 1 easement. Staff is recommending that the applicant demonstrate how a house and a deck could be placed on these parcels without a variance. The applicant has submitted a model which he plans on building on the subject lots. The house pad fits comfortably on these lots with 1 room for deck (See attachment #10). 1 1 I Bluff Creek Estates June 3, 1992 Page 3 1 The majority of this site is farmed and is devoid of vegetation except for a line of elm trees that run parallel to the north property line, and some wetland vegetation along Bluff Creek occupying I the westerly portion of the site. Staff is recommending conservation easements to preserve these areas. Tree preservation is a part of the proposed landscaping package. I The recently adopted Landscaping and Tree Preservation Ordinance states that all development located on arterial and collector streets are required to provide streetscape landscaping. The landscaping plan submitted by the applicant is in response to this requirement, and is of a very 1 high quality and exceeds the city ordinance standards. There is a wetland on the site. This wetland includes the protected water course of Bluff Creek. 1 The wetland is not proposed to be altered, and is within a conservation easement in an outlot. The Park and Recreation Commission is recommending that park fees be paid in lieu of park 1 land. They are recommending the city acquire ownership of Outlot A. This would allow for continuation of the Bluff Creek preservation corridor which would ultimately extend from Minnewashta Regional Park to the Minnesota River. The installation of an 8 foot bituminous 1 trail surface from proposed Road E to the rear of Lot 1, Block 1 and Lot 1, Block 3, where it would provide access to the future trail, is also being recommended. In consideration for this, it is recommended that the city give full trail fee credit to the applicant. I Staff believes that this lat request is a reasonable one and is generally consistent with guidelines P �1 g Y g established by the city Comprehensive Plan and Zoning Ordinance. We find it to be well I designed with only modest revisions being required. We are recommending that it be approved with conditions as outlined in the report. 1 PRELIMINARY PLAT I The applicant is proposing to subdivide a 61.45 acre site into 78 single family lots and one outlot. The density of the proposed subdivision is 1.27 units per acre gross, and 2.3 units per acre net after removing the wetland and roads. All the lots meet or exceed the minimum 15,000 1 square feet of area with an average lot size of 18,904 square feet. The western portion of the site contains an outlot. This outlot is not a buildable lot, and contains I Bluff Creek and an associated wetland. The Park and Recreation Commission is recommending that the city acquire ownership of Outlot A, allowing for continuation of the Bluff Creek preservation corridor. I Staff notes that the proposal is consistent with the Comprehensive Plan and generally consistent with the Zoning Ordinance. 1 1 1 Bluff Creek Estates June 3, 1992 Page 4 Streets /Access ' On September 14, 1987, the City Council approved the final plat request for Sun Ridge subdivision located south of the proposed Bluff Creek Estates Subdivision. It was staff's intention then to recommend that Sun Ridge Court be constructed with a 60 foot easement reserved at the north of the radius of the cul -de -sac to provide future connection and access to the property to the north (proposed Bluff Creek Estates). This would have been the ideal street design, however, the 60 foot right -of -way easement was never acquired. It was discussed in the staff report, but the developer failed to convey it. Since the property has all been sold, there is little possibility of obtaining the necessary easements without condemnation. Plans for Bluff Creek Estates propose a loop street with two access points on Audubon Road. The access points appear to be well located to accommodate future extension east of Audubon Road when development occurs on these lots. It appears the sight distance of the southerly access is acceptable based on MnDOT's standards. The right -of -way is proposed at 60 feet which is the city's urban standard. It is assumed the streets will be constructed to the city's standard at a 31 -foot wide back -to -back street section. Street grades are not provided on the plans, however, based on contours, it appears the majority of the street grade will be under the 7% maximum grade per city ordinance, except in the area in front of Lots 24 and 25, Block 2. It is recommended the applicant's engineer look at the grades to see if they can be reduced to meet the city's ordinance. If the street grade is not able to be reduced, a variance will be , required. Staff feels confident that street grades could be negotiated to fall within the city's guidelines. According to the Eastern Carver County Transportation Study, Audubon Road is classified as a cco g ty p y, collector class I street. It currently has a 66 foot wide right -of -way, but a 100 foot wide right. of- way is ultimately required. The preliminary plat proposes dedication of an additional 17 feet of right -of -way to the existing 33 feet, together with an additional 20 foot drainage and utility easement to facilitate trunk sewer and water improvements the city has proposed along Audubon Road. Remaining right-of-way would be acquired when parcels to the east are platted. Proposed Lot 8, Block 2, contains an existing "Chaska Brick" house and a garage. Presently, the horseshoe driveway for this house accesses onto Audubon Road. The garage is located approximately 20 feet from the rear property line and faces north. It is recommended that access to Audubon Road be eliminated for traffic safety reasons, and Lots 7 and 8, Block 2, share a driveway off of the northerly loop street (Road E). A driveway cross access easement would then be required across Lot 7, Block 2. Notice of the cross access easement should be placed in the chain -of -title for Lots 7 and 8, Block 2. This is an effort to reduce the amount of access points accessing on Audubon Road. The Planning Commission felt that it may be appropriate for the character of the property to have a driveway of some kind going out to Audubon Road if it was acceptable from a safety standpoint and agreeable with Engineering Department. Engineering staff has prepared drawings showing the acceleration 1 1 1 ' . Bluff Creek Estates 1 June 3, 1992 Page 5 1 and deceleration lanes on Audubon Road. The driveway encroaches onto the proposed lanes and is not desirable from Engineering's view point as it could cause a safety issue (See attachment #9). I The applicant would like to construct one model home to be located on Lot 9, Block 2 for the Parade of Homes, which begins in the first week of September. This home is proposed to share I the driveway with the existing home until such time when the proposed street to the south of Lot 9 is constructed. It should be pointed out that Lot 9, Block 2 should also gain its driveway I access off of the interior street (Road E) and not Audubon Road. The southerly road access proposes an island barrier at Audubon Road. This island should be I removed. If the applicant is interested in having an entrance monument, we recommend that it be placed along the adjacent lot's corner. I Audubon Road is constructed to rural standards with 24 -foot wide bituminous surface and six foot gravel shoulders. North of Heron Drive, Audubon Road has been recently reconstructed into a 44 -foot wide urban section with concrete curb and gutter and a trail system along the east side. I It is anticipated that in the near future, Audubon Road may be upgraded to urban standards as development pressures warrant upgrading. The applicant should be aware that this development may sustain some of the costs from the upgrading project in the way of special assessments. I As the final plat is prepared, detailed utility and street construction drawings should be submitted to the City for review and formal approval. The roadway should be designed to the city's urban 1 standards. The plat proposes development to take place in four phases. This phasing includes the street 1 construction as well. Phase one will include a portion of the south quarter of Road E, and all of Road D. A temporary cul -de -sac should be constructed at the end of the first phase of Road E until the road can be extended in the future. A sign should be placed on the barricades 1 indicating the future connection. Notice of the ultimate street extension should be placed in the chain -of -title for the lots located in this vicinity. All road right -of -way should be platted in the first phase. I The city's improvement project 's trunk sewer and water im rovement 'ect will include construction of an 8 foot sidewalk along the west side of Audubon Road. 1 that the street names be approved by Public Safe The Fire Marshal is recommending pp y Safety. 1 Landscaping and Tree Preservation I The recently adopted Landscaping and Tree Preservation requirements state that a landscape buffer is required when a subdivision plat is contiguous with a collector street. Required 1 1 • Bluff Creek Estates June 3, 1992 Page 6 buffering shall consist of berms and landscape materials consisting of a mix of trees and shrubs 1 and/or a tree preservation area. The plan identifies plant material locations along Audubon Road as well as a single planting (21" Norway Maple). Appropriate financial security will be required. The Landscaping and Tree Preservation requirements state that it is the policy of the city to preserve natural woodland areas throughout the city, and with respect to specific site development to retain as far as practical, substantial tree stands which can be incorporated into the overall landscape plan. Mature elm trees are located along the north edge of the site. There are also some oak trees. The applicant is proposing to preserve these trees by limiting grading in those areas. Trees designated for preservation shall be protected by snow fence or other means acceptable to the city. Protective measures must be located at or beyond the ground foot print of the tree's crown. No fill material or construction activity shall occur within these areas. These measures 1 must be in place and inspected prior to the start of grading activity. At the city's discretion, conservation easements may be required to protect designated tree preservation areas. Staff is recommending that a conservation easement be established to protect trees located along g P g the north property line of the site. This would be accomplished by designating the conservation area on the plat and through fmancial guarantees to ensure that the integrity of the easement is maintained. Individual lots will be required to show the conservation easement on the plat. Staff is also recommending that a tree survey be submitted so that even those tress outside the conservation easement may be saved as much as possible (Sheet 3 of 5). The applicant is intending to save some trees on Lots 1, 2, 3 and 5, Block 2, but staff does not believe that would be possible due to location of future homes. The northern edge of the site will be buffered by a 100 foot wide landscaped area from the Chanhassen Business Center, as designated in the Comprehensive Plan. Grading/Drainage The overall development is proposed to be constructed in two phases with the initial phase 1 proposed along the easterly portion of the site adjacent to Audubon Road. Ultimately, the entire site will be regraded along with construction of two retention ponds along the westerly edge of the property. Since the retention ponds are located in the far westerly portion of the site (Phase II), the initial phase should provide for an interim or temporary retention ponding to address water quality issues and fulfill the city's storm water retention ordinance. The plans do not reflect any interim ponding or sediment basins and it is assumed that the applicant will not be constructing the entire storm sewer at this time. Therefore, it will be necessary for the applicant to provide interim ponding with Phase I of this development. 1 1 Bluff Creek Estates June 3, 1992 Page 7 The first phase of construction proposes grading the rear lots adjacent to Audubon Road to drain southerly along Audubon Road to Bluff Creek. Audubon Road currently exists as a rural type 1 roadway with a ditch section. Any increase in the amount of runoff will create additional turbulence and potential erosion problems downstream. It is recommended that the applicant's engineer redesign and raise the lot grades to minimize the amount of runoff towards Audubon Road. Eventually, Audubon Road will be upgraded to urban street standards with concrete curb - and gutters similar to just north of the site adjacent to Lake Susan Hills West 3rd Addition. It would seem prudent to grade the lots adjacent to Audubon Road to be conducive with future 1 urban design standards, i.e. eliminate ditch section, build rear yards up to drain out to interior street (Road "E ") where practical. 1 Street grades are not shown on the plans based on contours; however, they appear to be acceptable except along Lots 25 and 26, Block 2. The street grades in front of these lots appear ' to exceed the city's ordinance of 7.0% maximum grade. Therefore, a variance may be required unless the developer's engineer redesigns the street grade to fall within the city's guidelines of 0.50% to 7.0% grade. Staff believes this can be achieved. The proposed house pads in this same ' area are approximately six feet above the street grade which equates to approximately 13% to 15% driveway grade which is extremely steep. Typically, the city requires that driveway grades not to exceed 10 %. It is recommended that the developer's engineer redesign and lower these lots so the driveway grades do not exceed 10 %. Storm runoff generated from streets and lawns is proposed to be conveyed overland via surface drainage to a series of storm sewers which will convey runoff into two retention ponds. The applicant's engineer should submit design calculations for the storm sewer and retention ponds. Storm sewers should be designed for a 10 -year storm event and retention ponds shall retain the difference between the pre - developed and developed runoff rate for a 100 -year single storm event. The outlet of the pond shall be designed to restrict the discharge to the pre - developed runoff rate. Ponds shall also be constructed to "NURP" standards to improve water quality. As part of Phase I construction, no storm sewer improvements are proposed to be constructed. Road E becomes a very long street with no storm sewers. It is recommended that the applicant's engineer provide an interim retention or sediment pond and storm sewer plans to deal with street and lawn runoff. 1 Staff recommends the applicant supply earthwork calculations to the city to determine if the site earthwork balances, or if the site requires material to be imported or exported. Staff requests this information to determine if appropriate traffic signage will be required or if additional financial 1 security requirements are necessary. 1 1 1 • Bluff Creek Estates 1 June 3, 1992 Page 8 Utilities • • 1 Municipal sanitary sewer and water sewer currently is not available to this site. However, the city has authorized preparation of plans and specifications to extend trunk sanitary sewer and water facilities down along the west side of Audubon Road which will service Phase I of this site. Phase II of the development will be serviced via a gravity sewer line from a proposed trunk sanitary sewer which the city will be extending north from Lyman Boulevard adjacent to Bluff Creek. The applicant will have to cross over Bluff Creek in the future to extend sewer service to Phase II. Depending on the city's trunk improvement project's scope and time frame, the utility line may or may not be operational by October, 1992. The city's project will include special assessments for both trunk and lateral sanitary sewer and watermain service to this development. The preliminary plat is dedicating sufficient right -of -way and utility easements for installation of the city's trunk sewer and water lines. The utility layout proposed on the utility plan sheet is fairly well laid out. Hydrant spacing may be of concern to the Fire Marshal and require additional hydrants. The Fire Marshal's rule of thumb for hydrant spacing is typically 300 feet apart. There are some areas that exceed this limitation and will need to be modified. Watermain sizing is not given on the preliminary plans and should be evaluated by the applicant's engineer. Detailed calculations demonstrating sufficient fire flow during peak demands should be supplied to the City Engineer for review. Final construction plans may be prepared in conjunction with the final platting process. Utility 1 and street construction plans and specifications shall be prepared using the city's most recent edition of "City Standard Specifications and Detail Plates." In addition, in the same area, the proposed house pads are approximately six feet above grade � P P P PP Y which equates to approximately 13% to 15% driveway grade which is extremely steep. Typically, the city requires the driveway grades not exceed 10 %. It is recommended that the developer's engineer redesign these lots so the driveway grades do not exceed 10%. Storm runoff generated from streets and lawns is proposed to be conveyed through overland 1 surface drainage and a series of storm sewers which discharge into two retention ponds. The applicant's engineer shall submit design calculations for the storm sewer and retention ponds. Storm sewers should be designed for a 10 -year storm event and retention ponds shall retain the difference between the pre - developed and developed runoff rate for a 100 -year storm event. The outlet of the pond shall be designed to restrict the discharge to the pre - developed runoff rate. Ponds shall also take on water quality characteristics as developed by NURP standards. Erosion Control 1 Plans propose erosion control along the westerly, northerly, and southeasterly property lines. It is recommended that the proposed erosion control fence be the city's Type III along the wetlands (Phase II construction) and Type I silt fence along the north and southeasterly portions of the 1 1 Bluff Creek Estates June 3, 1992 Page 9 1 development (Phase I construction). Additional erosion control fence should be installed on Lots 7, 14 and 15, Block 3 as check dams, as well as, Lots 8, 10 and 11, Block 1. The side slopes along the rear of Lots 1 through 5, Block 3 are steep, approximately 3:1. It is recommended that an erosion control blanket be used on slopes 3:1 or greater throughout the development and that all disturbed areas be seeded within two weeks after grading unless MNDOT's planting season dictates otherwise. Miscellaneous The preliminary plat proposes 15 -foot wide drainage and utility easements over the storm sewer lines proposed along the interior lot lines of the development (outside street right -of -way). It is recommended that the 15 -foot wide easement areas be increased to 20 feet wide to ensure adequate room for access and maintenance vehicles. The preliminary plat also dedicates a drainage easement over Lots 7, 8, 10 and 11, Block 1 for a rear yard drainage swale. Staff 1 recommends that the drainage easement also be extended to include Lots 12 and 13, Block 1. Easements On the fmal plat, the following easements and right -of -way shall be indicated: 1 1. Dedication of all street right -of -way. 2. Conservation and drainage easements over all protected wetland and ponding areas. 1 Provide access easements to allow the city to maintain all ponding areas. 3. A 20 foot wide utility and drainage easements over all sewer, water, and storm sewer 1 lines located outside public right -of -way. ' 4. Conservation easements over all designated tree preservation areas. 5. Standard drainage and utility easements along each lot line. 1 6. Dedication of Outlot A to the City. Park and Recreation The Comprehensive Plan identifies the majority of the site as lying within the service area of ' Power Hill Park, and as being on the service area fringe of Sunset Ridge Park, and the new park acquired in Stone Creek. However, the railroad alignment to the north, Audubon Road to the east, and a lack of trail and street connections present barriers to free access to these parks (see 1 Attachment 2). 1 Bluff Creek Estates June 3, 1992 Page 10 Trails which are identified by the Comprehensive Trail plan in the area of Bluff Creek Estates 1 are depicted on Attachment #2. Two north/south corridors are identified on or abutting to this parcel. They are the Bluff Creek drainage turf trail, and the Audubon Road off - street bituminous alignment. The Park and Recreation Commission recommended the City Council require full park fees be paid as a condition of approval of Bluff Creek Estates. Fees to be paid at the time of building permit approval in the amount of the park fee in force at the time of building permit application. 1 The preliminary plat identifies the western 19.7 acres of the site as an outlot. This entire area is below the 100 year flood elevation and will contain a portion of the Bluff Creek Corridor turf trail identified in the city's Comprehensive Plan. This outlot extends to the east in a bottle -neck fashion, abutting proposed Road E, allowing for pedestrian access from the residential street. The second trail associated with this site is the proposed Audubon Road off -street alignment. Through consultation with the city's engineering department, it has been determined that no additional right -of -way is necessary if this trail is to be constructed west of Audubon Road. The Park and Recreation Commission recommended that the City Council acquire ownership of Outlot A, allowing for continuation of the Bluff Creek preservation corridor, and require the installation of an 8 foot bituminous trail surface from proposed Road E to the rear of Lot 1, 1 Block 1 and Lot 1, Block 3 as a condition of approval of this plat. In consideration for this, it is recommended that the city give full trail fee credit to the applicant. Rezoning The applicant is proposing to rezone the property from A -2, Agricultural Estate to RSF, 1 Residential Single Family. The area to the east and west are zoned A -2. Sun Ridge Subdivision to the south is zoned RR, Rural Residential. The property is bordered on the north by the 1 recently rezoned PUD by Ryan Construction for the Chanhassen Business Center. The 2000 Land Use Plan shows this area designated for development as Low Density Residential, 1.2 - 4.0 units per acre. The applicant's proposal has a gross density of 1.27 units per acre and 2.3 units per acre net after the streets and wetlands are taken out. This area is in the new MUSA area. The sewer service will be from the new Bluff Creek service 1 area system. The feasibility for this sewer and timing was recently approved by the City Council. At the earliest, sewer could be available to this site in late fall. - , Staff is recommending that this area be rezoned to RSF and the rezoning is consistent with the Comprehensive Plan. 1 1 1 1 I Bluff Creek Estates June 3, 1992 Page 11 1 COMPLIANCE WITH ORDINANCE - RSF DISTRICT I Lot Lot Home Home Area Width Depth Setback 1 Ordinance 15,000 90' 125' 30' front/rear 10' sides BLOCK 1 I Lot 1 19,600 92' 175 1 Lot 2 16,500 84' 165 Lot 3 15,000 145/102 127.5 1 Lot 4 18,880 103 185 Lot 5 16,900 53 145 Lot 6 26,450 61 145 I Lot 7 23,000 61 186 1 Lot 8 20,500 106 175 1 Lot 9 16,400 126 129 Lot 10 18,700 87 185 1 Lot 11 22,550 82 210 I Lot Lot Lot Home Area Width Depth Setback 1 Lot 12 17,700 88 175 Lot 13 15,600 88 168.5 1 Lot 14 15,000 90 167 I Lot 15 15,000 90 167 1 1 1 Bluff Creek Estates 1 June 3, 1992 Page 12 Lot 16 15,000 90 167 1 Lot 17 15,000 90 167 I Lot 18 15,000 90 167 Lot 19 22,150 118/175 157 1 BLOCK 2 1 Lot 1 15,900 108/160 152.5 1 Lot 2 16,300 67 162.5 Lot 3 28,400 58 165 1 Lot 4 25,300 57 150 1 Lot 5 16,000 57 155 Lot 6 17,600 105/180 170 1 Lot 7 22,800 234/110 227 1 Lot 8 32,550 155 221 20 * Lot 9 35,700 155/165 218.5 1 Lot 10 21,050 105 156.5 1 Lot Lot Lot Home 1 Area Width Depth Setback 1 Lot 11 17,300 98 192.5 Lot 12 18,550 100 190 1 Lot 13 17,900 98 170 1 1 1 I I Bluff Creek Estates June 3, 1992 Page 13 1 Lot 14 17,300 74. 170 I Lot 15 22,000 54 165 Lot 16 19,000 61 159 1 Lot 17 15,000 72 154 I Lot 18 15,200 106 145 Lot 19 15,100 100 147.5 1 Lot 20 15,300 110 /140 142.5 1 Lot 21 18,700 241 145 Lot 22 15,200 105 145 I Lot 23 15,200 105 145 1 Lot 24 15,000 119 147.5 1 Lot 25 16,900 152 160 Lot 26 15,500 118 170 1 Lot 27 17,000 95 180 1 Lot 28 16,650 116 197.5 Lot 29 29,500 137 232.5 1 Lot Lot Lot Home 1 Area Width Depth Setback Lot 30 22,700 195 240 I Lot 31 22,550 90 250 1 Lot 32 26,600 90 280 1 1 c I Bluff Creek Estates June 3, 1992 Page 14 Lot 33 19,800 119 265 1 Lot 34 17,600 131 245 BLOCK 3 Lot 1 20,150 118/98 150 Lot 2 15,850 81 157.5 1 Lot 3 16,000 81 157.5 1 Lot 4 15,300 95 152.5 Lot 5 15,100 98 157.5 1 Lot 6 22,100 53 187.5 1 Lot 7 22,900 58 180 Lot 8 26,150 635 155 1 Lot 9 15,700 98 147.5 1 Lot 10 15,000 134 137.5 Lot 11 16,500 153/145 137.5 1 Lot 12 15,800 111 127.5 1 Lot 13 23,400 78 220 Lot Lot Lot Home 1 Area Width Depth Setback Lot 14 24,600 82 230 1 Lot 15 16,600 85 175 Lot 16 15,600 80 155 1 1 1 I 1 Bluff Creek Estates June 3, 1992 Page 15 III Lot 17 15,000 100 150 I Lot 18 15,000 100 150 Lot 19 15,500 80 155 • 1 Lot 20 18,250 88 180 I Lot 21 27,950 80 200 Lot 22 18,150 82 175 1 Lot 23 15,000 85 146 1 Lot 24 15,000 103 145 Lot 25 15,250 223 139 1 * Variance required: Proposed Lot 8, Block 2, contains an existing "Chaska Brick" house and a garage. Presently, the driveway for this house accesses onto Audubon Road. The garage is 1 located approximately 20 feet from the rear property line and faces north. City ordinances requires any detached accessory structure in excess of 400 square feet to maintain a distance of 30 feet from the rear property line. The garage has an approximate area of 900 square feet. 1 Mature maple trees separate the existing garage from proposed Lot 5, Block 2, creating a natural buffer. We find this intrusion into the rear yard setback acceptable and recommend approval of the rear yard setback variance for the garage. The Planning Commission was strongly opposed 1 to the rear yard setback variance and recommended that the applicant adjust the property lines to eliminate the variance. 1 WETLAND ALTERATION PERMIT I The site contains a Class A wetland according to the Department of Interior Wetland Inventory Map. The area of the wetland is approximately 19.70 square feet and is located in the western portion of the site in Outlot A. 1 The City Code requires that development within 200 feet of a Class A wetland shall receive a wetland alteration permit. No alteration is proposed as part of this plat request. The wetland has I Bluff Creek traversing through its center. Vegetation predominant in the area is reed canary grass. As stated earlier, there is to be no alteration of the proposed wetland. Building pad locations exceed the required 75 foot setback and are in fact, located in some cases, in excess I of 160 feet. There will be adequate area for sheet flow from the proposed housing pads to eliminate impurities reaching the wetland area. 1 . 1 • Bluff Creek Estates June 3, 1992 Page 16 PLANNING COMMISSION UPDATE The Planning Commission reviewed this proposal on June 3, 1992. Some of the issues that were raised at the meeting were in connection with the rear yard setback variance. The commission felt there was no justification for granting the variance and that the applicant should adjust the property lines to eliminate the variance. A second issue was in regard to the horseshoe driveway for the existing "Chaska Brick" residence. Presently, the horseshoe driveway accesses onto Audubon Road. Staff had recommended this driveway be eliminated for traffic safety reasons, and Lots 7 and 8, Block 2, 1 share a driveway off of the northerly loop street (Road E). This is an effort to reduce the amount of access points accessing on Audubon Road. The Planning Commission felt that it may be appropriate for the character of the property to have a driveway of some kind going out to Audubon Road if it was acceptable from a safety standpoint and agreeable with Engineering Department. Engineering staff has prepared drawings showing the acceleration and deceleration lanes on Audubon Road. The driveway encroaches onto the proposed lanes and is not desirable from Engineering's view point as it could cause a safety issue (See attachment #9). In general, the Planning Commission was satisfied with the proposal, and recommends approval 1 of the application with minor changes to the conditions of the Preliminary Plat. RECOMMENDATION 1 Staff recommends the Planning Commission adopt the following motions: Wetland Alteration Permit "The City Council approves Wetland Alteration Permit #92 -6 with the following conditions: 1 1. All wetland areas will be protected during construction by Type III erosion control. The erosion control shall be maintained in good condition until the disturbed areas are stabilized. 2. The wetland area remain undisturbed. 3. The applicant shall receive a permit from the watershed district. 1 4. The applicant shall meet all conditions of the Subdivision #92 -5 and Rezoning #92 -3." REZONING Staff recommends the Planning Commission adopt the following motion: , 1 r Bluff Creek Estates June 3, 1992 Page 17 1 "The City Council approves Rezoning #92 -3 property A -2 to RSF: 1. The applicant shall enter into a development contract containing all of the conditions of approval for this project and shall submit all required financial guarantees. The development contract shall be recorded against the property. • 1 2. The applicant shall meet all conditions of the Subdivision #92 -5 and Wetland Alteration Permit #92 -6." PRELIMINARY PLAT "The City Council approves Subdivision #92 -5 as shown on the plans dated May 4, 1992, with ! - : , , subject to the following conditions: 1. All storm sewer drainage pipes should be designed for a 10 -year frequency storm utilizing a rational method. Storm drainage retention pond, detention areas and outlet piping shall be designed for a 100 -year frequency, 24 -hour single event using the "SCS Method" established for use in Minnesota. The discharge rate shall not exceed the pre - developed runoff rate. Ponds shall also be designed to "Nurp" Standards. 2. All utility and street improvements shall be constructed in accordance with the current edition of "City's Standard Specifications and Detail Plates." Detailed street and utility 1 construction plans and specifications shall be submitted for City Council approval. 3. The applicant shall apply and obtain permits from the Watershed District, DNR and other 1 appropriate regulatory agencies and comply with their conditions of approval. 4. Watermain systems shall be designed to ensure adequate fire flow for the site. Design calculations shall be submitted to the City Engineer to verify pipe size. 5. The applicant shall enter into a development contract with the city and provide the financial security to guarantee compliance with the terms of the development contract. The final plat shall be contingent upon the City Council authorizing and awarding a public improvement project for the extension of trunk sanitary sewer and water facilities to service the site. 6. All lots shall access from interior streets and not Audubon Road. Street grades shall not exceed the 7% maximum street grade per City ordinance. A deceleration/acceleration lane shall be provided on Audubon Road. The center island shall be deleted from the southerly access street (Road E). The existing driveway to the site shall be relocated to access from the northerly loop street through Lot 7, Block 2. A cross - access easement 1 1 Bluff Creek Estates June 3, 1992 Page 18 shall be conveyed to Lot 8, Block 2 with the understanding that the Planning 1 Commission feels that it may be appropriate for the character of the property to have a driveway of some kind going out to Audubon Road, but that it will be the burden of the applicant to get to the City Engineer and see what they can work out between the Planning Commission and City Council meetings. 7. The final plat shall be amended to include expanding the 15 -foot wide drainage and utility 1 easements to 20 feet wide and extending the drainage easements through Lots 12 and 13, Block 1. The following easements shall be provided: 1 a. Dedication of all street right -of -way. b. Conservation and drainage easements over all protected wetland and ponding areas. Provide access easements to allow the city to maintain all ponding areas. c. A 20 foot wide utility and drainage easements over all sewer, water, and storm sewer lines located outside public right -of -way. d. Conservation easements over areas designated by staff. e. Standard drainage and utility easements along each lot line. 1 f. Dedication of Outlot A to the City. 8. All necessary permits shall be obtained from the pipeline company for an az3' P P P P Y any grading or construction activity within the pipeline easement. 9. Fire hydrants should be spaced approximately 300 feet apart throughout the subdivision in accordance with the Fire Marshal's recommendations. 10. All areas disturbed during site grading shall be immediately restored with seed and disc - mulched or wood fiber blanket within two weeks of completing site grading unless MNDOT's planting dates dictate otherwise. All areas disturbed with slopes of 3:1 or greater shall be restored with sod or seed and wood fiber blanket. 11. Until Phase II improvements are completed, interim sediment and/or retention ponds shall 1 be constructed and maintained by the applicant to accommodate Phase I storm runoff. The applicant shall amend the grading plan to take into consideration the runoff from the back yards for Phase I to accommodate future upgrading of Audubon Road (urban design). The grades on Lots 25 and 26, Block 3 shall be redesigned so the driveway grades do not exceed 10 %. The applicant shall supply earthwork calculations for both phases to the City Engineer for review. Erosion control fence along the westerly portion 1 1 111 Bluff Creek Estates June 3, 1992 Page 19 of the development (Phase II) adjacent to the wetlands shall be the City's Type III. Additional erosion control fence (Type I) shall be installed on Lots 7, 14 and 15, Block ' 3 and Lots 8, 10 and 11, Block 1 as check dams. 12. Outlot A shall be deeded to the city. In consideration for this, full trail fees will be credited. An 8 foot wide bituminous trail shall be constructed from proposed Road E to the rear of Lot 1, Block 1, and Lot 1, Block 3. 13. The applicant shall convey to the City a temporary street easement for the temporary cul- de -sac at the end of Road E. In addition, a sign shall be installed on the barricades stating that the street will be extended in the future. All street right -of -way for all plat phases to be dedicated with phase I platting. 14. The developer shall acquire the required utility construction permits from the PCA and 1 Minnesota Department of Health. 15. The applicant shall meet the conditions of the Rezoning #92 -3 and the Wetland Alteration Permit #92 -6. 16. The applicant should work out with city staff to provide whether or not Lots 10 and 1 14 in Block 2 are in fact buildable between the Planning Commission and the City Council Meeting. 1 17. Trees designated for preservation shall be protected by snow fence or other means acceptable to the City." ATTACHMENTS 1. Memo from the DNR dated May 12, 1992 2. Memo from Todd Hoffman dated May 19, 1992. 3. Memo from Minnegasco dated May 13, 1992. ' 4. Letter from Dave Hempel dated May 27, 1992. 5. Memo from Mark Littfin dated May 7, 1992. 6. Memo from Steve Kirchman dated May 13, 1992. 7. Memo from Williams Pipe Line Company dated May 14, 1992. 8. Planning Commission Minutes dated June 3, 1992 9. Exhibit showing acceleration and deceleration lanes in relation to the existing driveway. 10. Proposed residence for Lots 10 and 14, Block 2. 11. Preliminary plat dated May 4, 1992. 1 1 • STATE OF DEPARTMENT OF NATURAL RESOURCES �r . PHONE NO. METRO WATERS - 1200 WARNER ROAD, ST. PAUL, MN 55106 772 -7910 FILE NO May 12, 1992 • 1 Sharmin Al -Jaff Planning Department City of Chanhassen 690 Coulter Drive, P.O. Box 147 Chanhassen, MN 55317 • RE: BLUFF CREEK ESTATES, PRELIMINARY PLAT, CASE 92 -5 SUB, 92 -3 REZ, AND 92 -6 WAP, BLUFF CREEK, CITY OF CHANHASSEN, CARVER • COUNTY Dear Ms. Al -Jaff: We have reviewed the site plans dated 5/4/92 (received May 7, 1992) 1 for the above - referenced project (N 1/2, NE 1/4, S.22, T.116N R.23W) and have the following comments to offer: 1. Protected watercourse Bluff Creek is on the proposed site. Any activity below the ordinary high water (OHW) elevation, which alters the course, current or cross - section of protected waters or wetlands, is under the jurisdiction of the DNR and may require a DNR protected waters permit. The OHW for Bluff Creek is the top of the bank. Please ' contact this office if there is any question about whether proposed activities will be within Bluff Creek and we can make arrangements to determine the OHW . 2. There is a large wetland fringe on Bluff Creek that is not under DNR jurisdiction. The U.S Corps of Engineers should be consulted regarding pertinent federal regulation for activities in wetlands. In addition, impacts to these wetlands should be evaluated by the responsible governmental units (the city and Riley - Purgatory -Bluff Creek Watershed District) in accordance with the provisions of The Wetlands Conservation Act of 1991. • 3. Portions of the site are within the Bluff Creek shoreland district and the floodplain district. The project must be consistent with the city's shoreland management regulations and the floodplain regulations of the city and watershed district. No DNR concerns with shoreland management or floodplain regulations were noted. 4. It appears that most of the stormwater is routed through settling basins, which is good. We would object to having the stormwater routed directly to the creek or wetland. 1 AN EQUAL OPPORTUNITY EMPLOYER Sharmin Al -Jaff Bluff Creek Estates May 12, 1992 Page 2 I/ 5. There should be some type of easement, covenant or deed restriction for the properties adjacent to the wetland areas. This would help to ensure that property owners are aware that the wetlands cannot be altered without appropriate approvals or permits. 6. Appropriate erosion control measures should be taken during the construction period. The Minnesota Construction Site Erosion and Sediment Control Planning Handbook (Board of Water & Soil Resources and Association of Metropolitan Soil ' and Water Conservation Districts) guidelines, or their equivalent, should be followed. 7. If construction involves dewatering in excess of 10,000 gallons per day or 1 million gallons per year, a DNR appropriations permit is required. You are advised that it typically takes approximately 60 days to process the permit application. Thank you for the opportunity to comment. Please contact me at 772 - 7910 should you have any questions regarding these comments. Sincerely, %' ' Ceil Strauss Area Hydrologist cc: Bob Obermeyer, Riley - Purgatory -Bluff Creek WSD Vern Reiter, USCOE Wayne Barstad Chanhassen general file 1 1 1 1 n 1TY O F : : DATE: May 19, 1992 II .' I • CC DATE CIIANHASd N il 1.� HOFFMAN: k l 1 STAFF REPORT I PROPOSAL: Preliminary plat of 61.45 acres into 78 single family lots and one outlot; Rezoning from A2, Agricultural Estate to RSF, Residential Single Family; and Wetland Alteration Permit for development within 200 feet of a I Z wetland, Bluff Creek Estates. I Q LOCATION: Located south of Highway 5 on the west side of Audubon V Road (see Attachment #1). LL APPLICANT: Keyland Homes Q 14456 Burnsville Parkway II Burnsville, MN 55337 PRESENT ZONING: A2, Agricultural Estates ADJACENT ZONING AND LAND USE: N - IOP, Industrial Office Park S - A2, Agricultural Estates I E - A2, Agricultural Estates W - A2, Agricultural Estates II COMPREHENSIVE PLAN: The Comprehensive Plan identifies the majority of the site as lying within the service area of Power Hill Park, and as being on the service area fringe Q of Sunset Ridge Park, and the new park acquired in Stone Creek. However, the railroad alignment to 0 the north, Audubon Road to the east, and a lack of trail and street connections present barriers to free access to these parks (see Attachment #1). W COMPREHENSIVE TRAIL PLAN: Trails which are identified by the I rm Comprehensive Trail plan in the area of Bluff Creek Estates are also depicted on Attachment 411. Two north /south corridors are identified on or abutting to this I parcel. They are the Bluff Creek drainage turf trail, and the Audubon Road off- street bituminous alignment. II 1 Bluff Creek Estates May 19, 1992 Page 2 ' BACKGROUND • This item was initially reviewed by the Park and Recreation Commission on January 28, 1992. The information presented to the ' Commission that evening and the corresponding minutes are attached. This item was scheduled for additional review in February, but was subsequently removed from the agenda. Since the Commission's ' initial review of the proposal, the city has finalized the acquisition of the 8.6 acre park site in the Stone Creek development. PARR The City has the ability to acquire approximately 3 acres of park property (comparable to Greenwood Shores Park), or a portion thereof, if we wish to. If acquisition of developable parkland was pursued, however, the city would forfeit all or a portion of the ' $39,000 in park fees which would be generated from this development. I do not advocate the pursuit of park property in this case for three main reasons: ' 1. The portion of this site on which homes would be constructed lies wholly within the park service area of Power Hill Park, and partially within the service area of Sunset Ridge Park. ' The new park in Stone Creek, once connected to Bluff Creek Estates via trails, will also be utilized to some extent. The barriers to travel mentioned earlier impact these service ' areas to a degree; but future trails, and additional residential street construction will lessen their effects. However, increasing vehicular traffic along Audubon Road will off -set these improvements somewhat. 2. Outlot A, as identified in the preliminary plat, is comprised of 19.7 acres of property wholly within the flood plain of 1 Bluff Creek. Via a trail connection being provided by the applicant, this area will meet a variety of desired open space needs. 3. The number of individual park sites operated by the city is relatively high. Acquisition of an additional small park site would perpetuate this phenomenon. ' PARR PROPERTY RECOMXENDATION ' It is recommended that the Park and Recreation Commission recommend the City Council require full park fees be paid as a condition of approval of Bluff Creek Estates. Fees to be paid at the time of ' building permit approval in the amount of the park fee in force at the time of building permit application. 1 1 Bluff Creek Estates May 19, 1992 Page 3 TRAIL As mentioned, the preliminary plat identifies the western 19.7 acres of the site as an outlot. This entire area is below the 100 year flood elevation and will contain a portion of the Bluff Creek Corridor turf trail identified in the city's Comprehensive Plan. This outlot extends to the east in a bottle -neck fashion, abutting proposed Road E, allowing for pedestrian access from the residential street. The second trail associated with this site is the proposed Audubon Road off - street alignment. Through consultation with the city's engineering department, it has been determined that no additional right -of -way is necessary if this trail were to be constructed west of Audubon Road. TRAIL RECOMMENDATION 1 It is recommended that the Park and Recreation Commission recommend that the City Council acquire ownership of Outlot A, allowing for continuation of the Bluff Creek preservation corridor, and require the installation of an 8 ft. bituminous trail surface from proposed Road E to the rear of Lot 1, Block 1 and Lot 1, Block 3 as a condition of approval of this plat. In consideration for this, it is recommended that the city give full trail fee credit to the applicant. 1 1 1 1 1 1 1 1 1 1 1 • • _ um 'PO um am r iir um =0U EVAR / •• Y , i SCHOOL SITE of t %1 o i: • I 11 INIII. OD Alla LU . Ng 0 4.1 . I i i , • O 0°1' . r . I I k ill k ► ._ r • , o.. 1 • - - - „E, artitik.3zi , evrer" IP i 1 _ _ _ _ _ k 7 7 0 Veg I A 2 I ■ , , Z 4', - illik 0 , ,,- „. c ,-,1 1 - 0 - - - . , . . , , . lyit Q HANS HAGEN HOMES = !V - � � �e ..-... 1 .--: 7 ?• o cv .41t_ != - 4-aiiii. - . 1 k 1 ''',* ' '1 C014%. VAI4V... i iii - nr -w tk." rem INL — e■- --*.• 2 / — • \ atik#AA*31111 e^...—) .0.0 ______ MIL r p r A dZill ie t k illiali limow 4111 r- Ilb- \ kl_r It- - WAIL) - -� i `, BLUFF CR ll ‘ 1 V i .....1 . N , A, . tviirair • r 1 o ° �■s■.■�D EXISTING ti 1 N sooc TRA,„ss.E„, , 1 1 „ s. =EL . • • • • ♦OP TRA1L /SI0tWatt l ir • 1 BWIFF CREEK TRRIL 9100 CORR IDOR 1 • e ________ 1 . /0 " C1T'OF 1 • i i� CHANHASSEN II _ 690 COULTER DRIVE • P.O. BOX 147 • CHANHASSEN, MINNESOTA 55317 1 (612) 937 -1900 • FAX (612) 937 -5739 1 MEMORANDUM TO: Park and Recreation Commission 1 i FROM: Todd Hoffman, Park and Recreation Coordinator DATE: January 23, 1992 I SUBJ: Pending Subdivision Reviews II a. Bluff Creek Site b. Hans Hagen Homes This item was prepared to afford the Commission the opportunity to 1 look ahead at above mentioned potential developing sites in Chanhassen. Both sites are proposed single - family developments and _-e adjacent to or in close proximity to the recently reviewed II - _,manhassen Business Center (see attachments #1, #2, and #3). The impact of these proposed subdivisions in the areas of fees, parks, trails, trail corridors, open space and natural resources is significant. Portions of the borders of both sites include areas designated for trails. The Bluff Creek site contains property through which the Bluff Creek Corridor Trail will travel (see attachment #4). Both sites are isolated from existing neighborhood II • parks, however, the Bluff Creek parcel is partially within the service area of Power Hill Park (see attachment #5). To date, only preliminary discussions have been held with the II owners and developers of these properties. 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QV ej - .. - .. air a�� .. - t� , a •' WaikwaylBikeway —� • •. _ 'b • . •••• Nature Trail ^J Q - — 1 . tt ..... g■r • Connection Points ........1 ,..4. - ...we - �._ f .'`k ,• ` .,� v 4 lb' 1 .."Willr •• H T . • 1 1 , 1 a, $0 1 1 ! t 1 t • 1 1 1 1 lase • 1•1 ai........immmmnmimowm...m.............ui • 45 Park and Rec Commissi Meeting January 28, 1992 - Page 37 • ADMINISTRATIVE PRESENTATIONS: A. LAKE ANN PARK UTILITIES AND PICNIC /RECREATION SHELTER UPDATE. r Hoffman: Item a is to d4scuss briefly the utilities which went in at Lake Ann Park. As you've driven by you've seen the big...trenches. The wire is down to the beach location. They've got the 3 1/2 inch forcemain sewer line over to a lift station in Greenwood Shores. B & D will come in and do restoration work and install the lift pumps and all those types of things in the spring. Picnic /recreation shelter was taken back. Approval for readvertising for bids for the City Council at their first meeting in January. Those advertisement for bids are going 'out this coming week in the Villager and the construction bulletin. We open bids the third week in I Februa'ry and hold my breath for a reasonable bid. The target zone right now is that it needs to be below 240 in order for it to be approved by the City Council. Last bids came in at $280,000.00. Lash: But there's been alterations right? Hoffman: Correct. There were some minor alterations in an attempt to bring the costs down and hopefully this bidding climate now in the spring is much better than it was last fall. Our economy is somewhat weak. Hopefull; we have a better bidding climate as well as people will be hungry for work. If all things work out right. The schedule is there. ' Unfortunately this would put a completion date right at the end of the beach season so we would have a nice beautiful, brand new building to close down the beach. t Lash: Maybe we need that big Labor Day, our first annual Labor Day celebration. Have Oktoberfest there. B. PENDING SUBDIVISION REVIEWS: Hoffman: Item 10(b) is of interest, particular interest to the Commission. ' The fil Et , these are just information on pending subdivision reviews. These developers have been in. Talked to the Planning staff. Discussed park issues. Trail issues. Easement issues with staff. Preliminarily bringing them to you this evening for some discussion. Especially on the Bluff Creek site. These folks are real tentative. If the Commission is going to want some park property, they want to know that so they can try to incorporate that into their plan. Or if we want to take fees, that sort of thing.' This really brings about, the entire next area of development. This quadrant of the city was developed with the business park, Lake Susan Park and then Lake Susan Hills West and Chanhassen Hills back on the map. ' So that section has been developed. The next one which is coming in is this entire ring... Essentially with agricultural fields or a large lot residential and now... Chan Business Park was recently reviewed by the Commission and that's coming around. The Bluff Creek site which we're discussing this evening is this particular location. As you'll notice, I don't know if the topo shows through on the map...it goes from very high ground on this end, breaks about here and drops essentially right on top of creek so it's a very odd site in that there is a lot of grading... That's a concern of the developers...very little flat, high ground... Hans Hagen Homes is the other one which is in for development. Again it's single 1 1 Park and Rec Commissi- Meeting January 28, 1992 - Page 38 family residential in this entire area. Initial discussions have centered around flag lot as being a 7 acre park. It's very wooded down in this section with a hill coming up... It does have some flat area right in this area... The other issue which needs to be addressed here is the trail corridor coming down to this other segment. You have a section of it righ11 on the Bluff Creek site. We also want to obtain a connection from the Hans Hagen site down to this trail and by- pass...get onto the Bluff Creek trail And the Comprehensive Trail plan does identify trail segments around this entire piece so as these subdivisions touch the adjoining roads, we need t take a look at securing the necessary easements as well there to provide for those trails in the future. Hans Hagen was in with the Planning II Director. Their initial development plan, site plan. It's not going to fly so they're back out for redeveloping their site plan. Bluff Creek, I'd like to take a further look at. To get your directions. Take a look at your site map so you know where this is. The service area of Power Hill Park does touch this site and a potential service area of the Hans Hagen park would service this site. It's approximately 75 homes which is a difficult number. It's on the fringe of if you had a 125 homes, I feel t would feel a great need to incorporate some type of active par site within that development. If it was 50 homes, we could certainly get by without it. 75 homes on a site which is very small, we can take about acres. We have the obligation or the right to take about 3 acres of park II pro ^erty. If we take 3 acres of park property here and create another eighborhood park that we need to go out and maintain, and is it in .^terest of the city to forego the park fee in this instance? As' this is about the break line of the bluff back up in here. T have to just continue the lots down in this area, in this re ing...Blucf Creek when they encompass that trail. That portion of 11 the trail and this section may indeed just be a huge outlot. The thing that we continually need to protect is naturally a developer comes in and they want to give you that outlot for park credit. The City ordinance say' that that's not acceptable. Anything below the high water mark just is not, cannot be calculated into park credits so you have a battle right off the bat. If the Commission felt that we needed to take 3 acres of this high ground, you can bet they're going to be before you pleading their cast on why they would not like to see that happen. So again so I can get back to the people working on this particular site, this evening I'd like to at least get your feelings on what you think on parkland and access to recreational facilities as it deals with the Bluff Creek site. Pemrick: WhatNare they coming as the lot sizes here with 75 homes? 1 Hoffman: Can you pick it up on there? Pemrick: I can't. I have a hard time reading these things. , Lash: It looks like they're 16,000. Andrews: About a third of an acre roughly. 1 Hoffman: Yeah, 15 to 20. Most of them are in right around 15. Lash: How many sites are there in the Hagen? 1 1 Park and Rec Corot i ss.i Meeting January 26, 1992 - Pages 39 Hoffman: Hans Hagen? Lash: Yes. r Hoffman: 140. 157. Something of that nature. 150 for a ballpark number. ' Pemrick: Is that the same again? About a third of an acre. Hoffman: In that site, no. They'd be about 6 doubles so about 6 acres. That flag lot up there is just over 7 and in our initial conversations, it would be basically a wash. They would be willing. to give 7 acres for the dedication. Pemrick: I'm just thinking with that small lot, the 75 homes, I think they should have a park. ' Lash: I do too. Pemrick: I don't think they should borrow from someone else because that's really cramped. LeEh: tow far would it be? See I would not consider Power Hill to he acceptable because if this area is now going to be developed with homes and ' businesses, Audubon is going to he a substantial enough road that I wouldn't be comfortable with children having to cross Audubon. In an uncontrolled intersection there wouldn't be any intersection there. To get to Power Hill. How far would it be from Bluff Creek if we had a sizeable park in the Hagen site, how far would it be if there was a fairly easily accessible trail between the two neighborhoods. ' Hoffman: It would be within the half mile but it would certainly not be an after school walk every day to go over to the neighborhood park. It would be more of a special trip type of operation. Obviously there is going to ' be considerable open space on this site simply because of the outlot that's going to be there so the developer has to, site constrictions says they have to put all their houses on this end and leave this end open. So there are but they have to buy the entire piece. So then we want to take 3 acres from them. We need to identify and obviously if we want an open field it's got to be up on the high portion. Andrews: All the prime land. Hoffman: Yep. As all developers say, it's the prime land. It's going to ' sell the best for them and you're going to take 3 acres. Essentially we're going to lose about $30,000.00 in park fees to buy that 3 acres or in excess of that and we're going to need to identify a location where we'd like to see that park and get back to them. Prior to redesigning their site plan, they'd certainly want to come in before the Commission officially on February 28th to present their case in that regard and then it would take action from the Commission to proceed further. Lash: Could you point out the outlot again? 1 11 Park and Rec Cornmissi Meeting II January 28, 1992 - Page 40 Hoffman: The low lying area would all be in this point. That's II essentially the high water mark down would just be grass, open area down to the Bluff Creek watershed. Again each neighborhood and city has a focal point. Whether it be a neighborhood park or a school or grassy open area r or big wcods. Kids from this neighborhood are going to 90 down in that outlot and play and if that fills the recreational requirements of that neighborhood, and we benefit by taking $40,000.00 in park fees, that's , great. If we feel it not, then we need to take a look at acquiring additional land. Schroers: What I would like to see here is a more clear overview of this I proposed site and how it fits into the area around. I mean it's difficult when you're looking at these itty bitty squares and things here to get a real good feeling of what's around. Logistically it's kind of hard. I'd� like to know right exactly where Sunset Ridge Park and Power Hill Park an stuff fit in proportion to this and it seems to me this might be an opportunity to capitalize on generating some fees. Some funds that we could put to use in other places. It may be a good opportunity to acquir some money rather than property but I just don't have a good feeling when I - lock at this as to how it all fits in. c - to make one comment and that is, if 75 homes go in the wit no r_a,K, y can guarantee you there will be somebody up here saying we e- ha, anyplace for our kids to go and play. You know you're going t But I don't think we need 3 acres either. I guess I feel we ■ c _:et the needs here with maybe something closer to a half or even an ac:.- which is a totiot and a hoop to shoot baskets or something like that II La=_I,: At least you have an open area. Throw in some playground equipment. The car cc there and fly a kite. They can shoot some hoops or they can ii have iuEt a quicky baseball. When you have just a third acre lot, you II can't play anything on a third acre lot and even with the high water line back here, that's somebody else's property. Even if half of them think it's fine for the kids to go back there and play and the other half don't" have kids or whatever and they don't want the kids there, it's marshy hal the year and the grass gets real tall. They can't go back there and play a game of ball or anything. So if we could pick a site that is high enough so we could develop it and it would fill our needs but it would be more on' of the undesireable lots. Say one that backs up to Audubon. Maybe that's one that wouldn't be as desireable for them to develop or it would be one of the last ones for them to develop anyway. Take one that's a peculiar II shape •like say 1 and 3 even. If you put two of them together, you'd have almost a square but if you look at them both individually, they're both kind of pie shaped. That's kind of an odd shape for a lot to try and bull a house on and it hacks up to Audubon. So maybe those are two disadvantages that we could use in our favor. Although they're at the end of a cul -de -sac which is nice for people, it'd really be nice for a park. I Schroers: It's possible that if you go, if you do something like you're suggesting that you could cash out on a deal. You could use 1 acre of property. Collect fees for the other 2 acres and use those fees to II purchase the equipment to put on that property and have a wash. II II Park and Rec Commissi Meeting January 28, 1992 - Page 41 Koubsky: Todd, do we know what Chan Business Center is doing? This abuts there? I mean like your park location would abut the Chan Business Center. We have trails that were proposed there. 11 Hoffman: Chan Business Park has the large outlot as well which runs north and south over the creek area. Right where the trail will go through. It's essentially a commercial /industrial center with there's a 100 foot ' buffer zone on the south side of their property which is on the north side of the Bluff Creek site. And there's a potential trail to run east and west on that upper site. • Koubsky: So that might be a good place to abut a park would be on a 100 foot easement. Hoffman: Correct. Lash: Arc' that also would make it more undesireable for someone abutting the business. Schroers: This is going to come up in front of us again I presume. Hoffman: Correct. Schroers: Can we ask that next time, is it possible to fit this into a better o.„Erla;' of the area so we can see how things are laid out a little bit better than this? Hoffman: Okay. I simply brought this to you just as a pending subdivision just so ,ou can oet some idea. The site plan does show it hopefully in some context to Hans Hagen and Chan Business Center, the Bluff Creek site and then, it also shows Power Hill Park and Outlot G. Just some words on, recently we've been looking at subdivisions and we're land grabbing and that's ocod. Vacant land is the first and irreplaceable to a park. The money can come later but if we forego park fees on this site, we forego ' park fees on Hans Hagen, there's going to be a year down the line where we're nct going to have a capital improvement program simply because we have no revenues coming in. ...or we take a minimal amount of the revenues, we're going to be left holding the bag. ' Schroers: Well that's exactly what I was saying with this density. This looks like a reasonable opportunity to collect some dedication fees and still be able to provide something adequate for the community. Not something that's only adequate but something that would be acceptable. ' Hoffman: It's a real tricky balance. We don't want to end up with another Pheasant Hill where we spend 8170,000.00 to try and meet their needs. But park service areas were set up for a reason and that's to accomplish what is a comprehensive park plan and what is identified as meeting the needs. So again, I have mixed direction to give to the developer. I'll take that to those folks and we'll bring it before the Commission again in February. Lash: You know another option that they may be more inclined to accept would be, a couple of the lots that are right by the high water level and then we'd end up with a. 1 1 Park and Rec Commissic ,Meeting II January 28, 1992 - Page 42 Koubsky: A hill. II Lash: Well. II Hoffman: If you want a play area, we need to take something on the easterly third or easterly half. Koubsky: I guess I think each area needs some sort of playground. It may, be an acre. I don't think we need 3 acres or whatever but I think they're far enough away from existing parkland. They've got roads and a railroad I track there. They each need some sort of area. Lash: I think we need to look at each one individually. At the physical cha- c4 and this one has several I think. You're looking at ' G;.. -. You look at the railroad track. You look at the fact that ± `s a business center abutting it. It's kind of secluded as it is _ _ -IOW. 1 l :cubsky: Because we'll also have Sunset Ridge Court there and 7imberwood. We'll have the school going north of it but they have bigger lots but they don't ha.'e playground facilities. Schroers: Do you have what you need on item (b) now Todd? Lash: what is the minimum that, I know that there was sort of some kind o11 a policy est.tlished at one time about the minimum that we would take for a neiohbcrhood park. Just so staff didn't have to go out and maintain 50,00 half acre parks all over town. Schroers: It was 5 acres originally. II Lash: Now we're talking about 1 acre. Hoffmar: One acre is half of the size of Carver Beach playground. 1 Schroers: You can't really do much more than a totiot. What else could you do besides a totiot. If you put in a totiot, what else do you put in II there? Pemrick: volleyball. Koubsky: Some open area. II Schroers: Yeah, we could put in volleyball. Picnic table. 1 Hoffman: You're not gaining that much more open area than a backyard in this area. That's the word of caution. We don't want to create, you know I 40 more subdivisions of this nature come into the city, do we want 40 one acre parks within our city? Schroers: No, I think we're better off looking at trail easements and II connect them to a park that's more substantial that's going to serve the area rather than give each little nook it's cranny. Definitely. II II Park and Rec Ccmmissi ,. Meeting January 28, 1992 - Page 43 • • Hoffman: It's an issue which needs to be addressed because of the accessibility and that type of thing. Bluff Creek corridor would provide access, safe access to the Hans Hagen site. We could negotiate with that site and acquire land closer to this site. Closer to this end of the corridor. Open space and that trail, it's not a traditional play structure which we identify with but it does provide recreational activity that piece of it. Schroers: Well we did want some diversity in our parks. We don't want them all to be the same thing. I guess there's nothing wrong with just having a green space and an open area and it doesn't have to be overly developed. It can just be maybe maintained to a point where people can create their own type of fun there. I mean keep the noxious weeds down. Do some mowing and that sort of thing and just give them space so they can do whatever they want to do. Pemrick: How about requiring larger lot sizes? Hoffman: Back to the Planning Commission. Perr,r i c k What do they say? Hoffman: Tne; li go through that and they have the ordinances set... Erickson: Todd, how far did you say that this Bluff Creek is from the Hans Hagen? That proposed 7 acre park. Hof The walk from the Bluff Creek site would be just over a quarter mile. It's within the half mile service area. You could go north through the CEO site underneath the railroad tracks. Take an immediate left there and ac> abc t half a block and you're at the Hans Hagen site. Their original proposal put an on street trail through a portion and then you cross the ravine and you're up into the park area. Erickscr: You say it'd be about a quarter mile? Hoffman: Yes, just over s quarter mile. ' Schroers: I don't think that's an unreasonable distance to get to the park. I mean at some point in time you have to take responsibility for 11 yourself. If you feel that your children are too small to go that quarter of a mile by themselves but you think they ought to go there, then you've got to take them there. I mean you can't dump a park on everybody's doorstep where everybody can look out their window. Erickson: Plus it's not really a quarter mile across Audubon or something like that. Hoffman: It may not happen. The Bluff Creek site may develop fully in 4 years and Hans Hagen may be 10 years down the line so we need to deal with that issue. It's something when you're in a developing city, you just can't control. 11 Park and Rec Commissic ;Meeting January 28, 1992 - Page 44 Lash: If that's the route we decide to take, let's make sure we have some kind of an access site that's not going between two lots through to the Hans Hagen area to get to the park for these other people. Schroers: Our service area was set up to be a half mile wasn't it? 11 Hoffman: Yep. This will be within the half mile as Power Hill will be onli the fringe district. I'll lay that out for you. Schroers: I think that's something we can work with. Berg: Plus if you build close enough on that end, on the other side, the 11 other people from Hans Hagen could use the school if it's built too. They'd have access to the facilities there, if it was built there. 1 Horfrnsn: Okay. Anything else? Lash: Do we need a motion on this thing? 1 Hoffman: Nc). Schroers: Okay, we beat item (b) to death. Ouite an indoctrination for these guys. Berg: This is normal right? 1 Schroers: No. Sometimes we bleed a little more. C. STATUS REPORT, SKATING RINKS. Ruegemer: Just to give you a real brief, tell you what's happening with the skatinc rinks in Chanhassen. We did have a mid - winter warm spell righ after the first of the year where it did get really nice out. Typically ur!E or& ie for January but it did do the skating rinks very much good. B what it did do is we had to close down the rinks because they w� :7)g very slushy and very dangerous to skate on. Virtually it did crt ...almost we had to start over again. So what we really did hope • for was to get some colder weather in, as we did and park maintenance crew did shave and get the ice back to where it was functional again. We opene up back again January 25th and we have been open since that time. Hopefully with weather cooperating that we can, this week is going to be II warm again the way it sounds. Up to 40. 38 tomorrow and 40 by the end of the week so hopefully we can squeeze through this week and get to where our target date of the 16th of February, weather permitting. 1 Lash: How do you set that target date? Ruegemer: It's just kind of an approximation. 1 Lash: It'd be nice if you were going to have an approximation, to have it after energy break. 1 Ruegemer: I think that's the middle of February too. 1 s. 1 = I mo_ l :]_tw.. Y t N _ _ —_ – � - - -_• • "F- i t `. L i 1_ 1 F / i 1 : ° � G r _' ' + to p ag - / I z NO t 4 ` : . - - L .'' - 'q . / ..... \ ..L .. ... 74 .. : ).7!\,......, ., j i . ; ...v_:.„ .. .. i ` /,• —j • � �� __ ./- ."' •,�- • • • - -ice - = e. ,r, . , gpv ,.---1--7--..?,1.1 \i' ?%.'/A/"-- >,. � / � ' .. 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I ' i . _ .... m-a— ii. :------..,... ...... ;6_,....... .. - ... .._- .,:::....._ _ ...... _:;.. , ....... 2, :• • ;! • ..vs • ' ...... • • • ' , • If.- • --., ••• - '.. , •1 .. ...t -. • , :._ :::. _. . • • ,- - . .. " \ - 3 .-:•' - . ...c' ( . t . . • . - 1 • '..• -.. . • :( . • -.." . :, -- -- -1\-- . - . ., . .------. I ); 1 1: . I - 1 11 1 .: I -. , 1.: , z _ ,;. ... . film Ili 111 .1 i I . s l . I 11 EILUFF . EITATES PLAN ,-, in -4,-,..z. , Ja s R. Hilt inc. it . a ....r.,,q. PRELIMINARY GRADING & EROSION CONTROL ' 9. 6 "• i I ?:"‘ '.1 PLANNERS / ENGINEERS / SURVEYORS .. 3 KEYLAND HOMES .71/m.17Nr•* Ir Mies Cf. •Io 4/ • SiM•II•aa..• "s" . • • :: • • ;,. I - 1 III 1 ......................_„...f......-...-....................................-.-..-...... : .-.-....-.. .M.: 2.../L.' I:WM. . -...- ......."......".."-..."-- ...."...- - .-". ... I * . I I 1 1 . 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E .5 I ........... ................■..... , i - / ... ....... b - 111••— -- /... --. -...... • --• .- ._ Z -.... 1 — -- — -- —1 • ■ I ; I I ? S. ...., ......... ....„,, ...... ..." •••. I I a 1 1! I . 1 1 1 I 1 h 1 11/1 •00 I • :pi I: X ! i i I. . et . 2 A.XX I 0.. I i 1 . 1 BLUFF CREEK ESTATES PRELIMINARY UTI • 5 R Hill inc. ......, ::-.:....-:-....... :-.,.............. Jame • I - - 1 II • : : ,-.„. LITY PLAN —.—....—. /04 M ftIft/SONEM a 0 : 1 «N. no ev. el .2 • 10000011.4. W. 111Ut 2 a A I " t' KEYLAND HOMES =.5,225... ••••ma..t.... fay 07.1190000•• ••• •20.81•• 1 . Ott I. 0.1. 9•••■11 MU .110•1, • / I , / ° ' M1flfl9SC0 A Division of Arkla, Inc. May 13, 1992 �� �rra lI a RFt. f_ 1 Ms. Sharmin Al -Jaff Planner 1 City of Chanhassen 690 Coulter Drive P.O. Box 147 Chanhassen, Minnesota 55317 Re: 92 -5 SUB, 92 -3 REZ, and 92 -6 WAP Bluff Creek Estates Audubon Road Dear Ms. AI- ea M Jaff, 1 Enclosed are the prints for this project indicating that Minnegasco does not have facilities in the area of this plat. We do have facilities at Audubon Road and Heron Drive. Natural gas service is available to the proposed plat from the mains on Heron drive subject to the rules and regulations in effect at the time of application. No additional gas main installations are anticipated at this time unless the developer /builder requests gas service. Minnegasco has no objections to this proposal. Should you have any questions please contact me or the Sales Department. Sincerely, di Richard J. Pion, P.E. Senior Administration Engineer Engineering Services 612 - 342 -5426 pc: Mary Palkovich Jim Kwak 1 1 700 West Linden Avenue P.O. Box 1165 Minneapolis, MN 55440-1165 . t CITYOF 6 90 COULTER DRIVE • P.O. BOX 147 • CHANHASSEN, MINNESOTA 55317 (612) 937 -1900 • FAX (612) 937 -5739 MEMORANDUM • • TO: Sharmin Al -Jaff, Planner I FROM: Dave Hempel, Sr. Engineering Technician /* I DATE: May 28, 1992 t SUBJ: Review of Preliminary Plat for Bluff Creek Estates- Keyland Homes LUR File No. 92 -10 Upon review of the preliminary plat, grading, drainage and utility plans prepared by James R. Hill, Inc. dated May 4, 1992, I offer the following comments and recommendations. t Grading and Drainage The overall development is proposed to be constructed in two phases with the initial phase proposed along the easterly portion of the site adjacent Audubon Road. Ultimately, the entire site will be regraded along with construction of two retention ponds along the westerly edge of the property. Since the retention ponds are located in the far westerly portion of the site (Phase II), the initial phase should provide for an interim or temporary retention ponding to address water quality issues and fulfill the City's storm water retention ordinance. The plans do not reflect any interim ponding or sediment basins and it is assumed that the applicant will not be constructing the entire storm sewer at this time. Therefore, it will be necessary for the applicant to provide interim ponding with Phase I of this development. The first phase of construction proposes grading the rear lots adjacent to Audubon Road t to drain southerly along Audubon Road to Bluff Creek. Audubon Road currently exists as a rural type roadway with a ditch section. Any increase in the amount of runoff will create additional turbulence and potential erosion problems downstream. It is recommended that the applicant's engineer redesign and raise the lot grades to minimize the amount of runoff towards Audubon Road. Eventually, Audubon Road will be upgraded to urban street standards with concrete curb and gutters similar to just north of the site adjacent to Lake Susan Hills West 3rd Addition. It would seem prudent to grade the lots adjacent to t PRINTED ON RECYCLED PAPER 1 Sharmin Al -Jaff May 28, 1992 Page 2 Audubon Road to be conducive with future urban design standards, i.e. eliminate ditch section, build rear yards up to drain out to interior street (Road "E ") where practical. Street grades are not shown on the plans based on contours; however, they appear to be acceptable except along Lots 25 and 26, Block 2. The street grades in front of these lots appear to exceed the City's ordinance of 7.0% maximum grade. Therefore, a variance may be required unless the developer's engineer redesigns the street grade to fall within the City's guidelines of 0.50% to 7.0% grade. Staff believes this can be achieved. The proposed house pads, in this same area, are approximately six feet above the street grade which equates to approximately 13% to 15% driveway grade which is extremely steep. Typically, the City requires that the driveway grades not to exceed 10 %. It is recommended that the developer's engineer redesign and lower these lots so the driveway grades do not exceed 10 %. Storm runoff generated from streets and lawns is proposed to be conveyed overland via surface drainage to a series of storm sewers which will convey runoff into two retention ponds. The applicant's engineer should submit design calculations for the storm sewer and retention ponds. Storm sewers should be designed for a 10 -year storm event and retention ponds shall retain the difference between the predeveloped and developed runoff rate for a 100 -year single storm event. The outlet of the pond shall be designed to restrict the discharge to the predeveloped runoff rate. Ponds shall also be constructed to "NURP" standards to improve water quality. part of Phase sewer o ase I construction, no storm se er unprovements are proposed to be constructed. Road E becomes a very long street with no storm sewers. It is recommended that the applicant's engineer provide an interim retention or sediment pond and storm sewer plan to deal with street and lawn runoff. Staff recommends the applicant supply earthwork calculations to the City to determine if the site earthwork balances or if the site requires imported material or to export. Staff requests this information to determine if appropriate traffic signage will be required or if additional financial security requirements are necessary. Utilities 1 Municipal sanitary sewer and water sewer currently is not available to this site. However, the City has authorized preparation of plans and specifications to extend trunk sanitary sewer and water facilities down along the west side of Audubon Road which will service Phase I of this site. Phase II of the development will be serviced via a gravity sewer line from a proposed trunk sanitary sewer which the City will be extending north from Lyman r 1 Sharmin Al -Jaff May 28, 1992 Page 3 Boulevard adjacent to Bluff Creek. The applicant will have to cross over Bluff Creek in the future to extend sewer tervice to Phase II. Depending on the City's trunk improvement project scope and timeframe, the utility lines may or may not be operational by October, 1992. The City's project will include special assessment for both trunk and lateral sanitary sewer and watermain service to this development. The preliminary plat is dedicating sufficient right -of -way and utility easement for installation of the City's trunk sewer and water lines. The utility layout proposed on the utility plan sheet is fairly well laid out. Hydrant spacing 1 may be of concern to the Fire Marshal and require additional hydrants. The Fire Marshal's rule of thumb for hydrant spacing is typically 300 feet apart. There are some areas that exceed this limitation and will need to be modified. Watermain sizing is not given on the . preliminary plans and should be evaluated by the applicant's engineer. Detailed calculations demonstrating sufficient fire flow during peak demands should be supplied to the City E i:ineer for review. Final construction plans may be prepared in conjunction with the final platting process. Utility and street construction plans and specifications shall be prepared using the City's most recent edition of the City Standard Specifications and Detail Plates. Streets 1 The preliminary plat proposes a loop street with two access points on Audubon Road. The access points appear to be located to accommodate future extension of the street east of Audubon Road. It appears the site distance of the southerly access is acceptable based on MnDOrs standards. The right -of -way is proposed at 60 feet which is the City's urban standard. It is assumed the streets will be constructed to the City's standard 31 -foot wide back -to -back street section. Street grades are not provided on the plans, however, based on contours, it appears the majority of the street grades will be under the 7% maximum grade per City ordinance except in the area in front of Lots 25 and 26, Block 2. It is recommended the applicant's engineer review the grades to see if they can be reduced to meet the City's ordinance. Staff feels confident that the streets grades could be negotiated to fall within the City's guidelines (030% to 7.0 %). According to the Eastern Carver County Transportation Study, Audubon Road is classified as a Collector Class I street. This type of street requires a minimum right -of -way of 100 feet. Audubon Road currently exists with 66 feet of right -of -way, 33 feet on each side of centerline. The preliminary plat proposes dedication of an additional 17 feet of right -of -way to arrive at half the necessary right -of -way together with an additional 20 -foot drainage and utility easement t� facilitate trunk sewer and water improvements the City has proposed along Audubon Road. 1 • 1 1 1 Sharmin Al -Jaff May 28, 1992 Page 4 The site currently contains an existing "Chaska" house which driveway accesses onto Audubon Road. It is recommended with Phase I construction the driveway access be eliminated from Audubon Road and relocated to access the northerly loop street (Road E). A driveway access easement would be required across Lot 7, Block 2. Staff feels this would be a safety improvement by reducing the amount of access points along Audubon Road. It should also be pointed out that Lot 9, Block 2 should also gain its driveway access off of the interior street (Road E) and not Audubon Road. The southerly road access proposes an island barrier at Audubon Road. This island should be removed. If the applicant is interested in having an entrance monument, we recommend that it be placed along the adjacent lot's corner. A deceleration and acceleration lane should also be constructed along Audubon Road in conjunction with this development. Audubon Road is constructed to rural road standards with 24 -foot wide bituminous surface and six foot gravel shoulders. North of Heron Drive, Audubon Road has been recently reconstructed into a 44 -foot wide urban section with concrete curb and gutter and a trail system along the east side. It is anticipated that in the near future, Audubon Road may be upgraded to urban standards as development pressures warrant upgrading. The applicant should be aware that this development may sustain some of the costs for the upgrading by means of special assessments. Erosion Control Plans propose erosion control along the westerly, northerly and southeasterly property lines. It is recommended that the proposed erosion control fence be the City's Type III along the wetlands (Phase II construction) and Type I silt fence along the north and southeasterly portions of the development (Phase I construction). Additional erosion control fence should be installed on Lots 7, 14 and 15, Block 3 as check dams, as well as, Lots 8, 10 and 11, Block 1. The side slopes along the rear of Lots 1 through 5, Block 3 are steep, approximately 3:1. It is recommended that an erosion control blanket be used on slopes 3:1 or greater throughout the development and that all disturbed areas be seeded within two weeks after grading unless MNDOT's planting season dictates otherwise. 1 Miscellaneous The preliminary plat proposes 15 -foot wide drainage and utility easements over the storm sewer lines proposed along the interior lot lines of the development (outside street right-of- way). It is recommended that the 15 -foot wide easement areas be increased to 20 feet wide to insure adequate room for access and maintenance vehicles. The preliminary plat also 1 1 1 Sharmin Al -Jaff 1 May 28, 1992 Page 5 r dedicates a drainage easement over Lots 7, 8, 10 and 11, Block 1 for a rear yard drainage swale. Staff recommends that the drainage easement also be extended to include Lots 12 1 and 13, Block 1. • - Recommended Conditions 1. All storm sewer drainage pipes should be designed for a 10 -year frequency storm r utilizing a rational method. 2. Storm drainage retention pond, detention areas and outlet piping shall be designed 1 for a 100 -year frequency, 24 -hour single event using the "SCS Method" established for use in Minnesota. The discharge rate shall not exceed the predeveloped runoff rate. Ponds shall also be designed to "NURP" standards. 3. All utility and street improvements shall be constructed in accordance with the current edition of the City's Standard Specifications and Detail Plates. Detailed street and utility construction plans and specifications shall be submitted for City Council approval. 1 4. The applicant shall apply and obtain permits from the Watershed District, DNR and other appropriate regulatory agencies and comply with their conditions of approval. 1 5. Watermain systems shall be designed to ensure adequate fire flow for the site. Design calculations shall be submitted to the City Engineer to verify pipe size. 1 6. The applicant shall enter into a development contract with the City and provide the financial security to guarantee compliance with the terms of the development 1 contract. 7. All lots shall access from interior streets and not Audubon Road. 1 8. Street grades shall not exceed the 7% maximum street grade per City ordinance. 9. A deceleration /acceleration lane shall be provided on Audubon Road. 10. The final plat shall be amended to include expanding the 15 -foot wide drainage and r utility easements to 20 feet wide and extending the drainage easements through Lots 12 and 13, Block 1. r 1 1 1 Sharmin Al -Jaff May 28, 1992 Page 6 • 11. All necessary permits shall be obtained from the pipeline company for any grading or construction activity within the pipeline easement. 12. Fire hydrants should be spaced approximately 300 feet apart throughout the 1 subdivision in accordance with the Fire Marshal's recommendations. 13. All areas disturbed during site grading shall be immediately restored with seed and disc - mulched or wood fiber blanket within two weeks of completing site grading unless MNDOT's planting dates dictate otherwise. 14. All areas disturbed with slopes of 3:1 or greater shall be restored with sod or seed and wood fiber blanket. 1 15. The developer shall provide adequate access easements for maintenance purpose to the proposed retention ponds. 1 16. The final plat shall be contingent upon the City Council authorizing and awarding a public improvement project for the extension of trunk sanitary sewer and water facilities to service the site. 17. Until Phase II improvements are completed, interim sediment and /or retention ponds shall be constructed and maintained by the applicant to accommodate Phase I storm runoff. 18. The applicant shall amend the grading plan for Phase I to accommodate future upgrading of Audubon Road (urban design). 19. The grades on Lots 25 and 26, Block 3 shall be redesigned so the driveway grades do not exceed 10 %. 20. The applicant shall supply earthwork calculations for both phases to the City Engineer for review. i 21. The center island shall be deleted from the southerly access street (Road E). 22. The existing driveway to the site shall be relocated to access from the northerly loop street through Lot 7, Block 2. A cross- access easement shall be conveyed to Lot 8, Block 2. 23. Erosion control fence along the westerly portion of the development (Phase II) adjacent to the wetlands shall be the City's Type M. Additional erosion control 1 1 1 Sharmin Al -Jaff May 28, 1992 Page 7 1 fence (Type I) shall be installed on Lots 7, 14 and 15, Block 3 and Lots 8, 10 and 11, Block 1 as check dams. 1 jms/ktm c: Charles Folch, City Engineer 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 CITYOF .1 CHANHASSEN 6 90 COULTER DRIVE • P.O. BOX 147 • CHANHASSEN, MINNESOTA 55317 (612) 937 -1900 • FAX (612) 937 -5739 1 MEMORANDUM 1 TO: Sharmin Al -Jaff, Planner I FROM: Mark Littfin, Fire Marshal DATE: May 7, 1992 SUBJ: 92 -5 SUB, 92 -3 REZ and 92 -6 WAP Bluff Creek Estates, Keyland Homes Comments requirements: and / 4 uirements: - 1) Relocate the two fire hydrants as shown on plan. 2) 10' clear space around fire hydrants. 1 3) Street names must be approved by Public Safety. 4) Please indicate radius cuts from Audubon Road to proposed road F. cc: Scott Harr, Public Safety Director Jim McMahon, Fire Chief Bob Moore, 1st Assistant Chief Richard Wing, 2nd Assistant Chief 1 1 1 1 to PRINTED ON RECYCLED PAPER 1 • M29069 .9s .9:90692.9 SS<SS wn '2lii.SwYL.t .00,0,1 9SS�niwY•�t "Vt. •• attic ••• • t• o• .a:.ocu •••‘..:• ••-...7. 53WOH ONtl�A3)1 3 Q SeoA3nanS /Sa33N0N3/S N`dld AlIl11f1 t Atl`dNIW113Hd s•• `y ;� " 1 *DUI `IRA • /t Sawpf NW - N3$0•1011•0 f o O j VVV .4 S31tl1S3 )1331:10 ddll�9 I e s ,�_ ,i v !: _ .. ` z-�f- o 4 o I g o J II :I ,� • 1 !i :r II ..................... if e •: � ; ii.F. 4... e I N -- ` \ \\ . , _____I � I - / i \ - 1 r. z Ti } Y 4_. -- a \ �� \ i I1 41� — .. i a 1:, - \ \ r o W � 1 N ! 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' 1 ,.. il N - - • 4 :.... ,--17 • .. .1. . '■:;...1 .--, - f : .1...n. • IT r . 1- . r. • . • .. ,- l . ..i :.. ...$ * • o'..)--.1t4i-ii ‘ f t- f • ''-'. . ..„.!.! .... 2: , i , ..' 1 1 , ..' .. :• NI_ ' . . a .1 , .. ri t , % • .I... ::.1. 1 g ,,• - si t. ' ' ... I , , E1 1 1 (... :4•17.,.:..4. • :, .0 „.....)..• .., • i : I. ..:1.1, I. . •••.1.4 x ■ c c' 1 _1. ,. '-'-' I ; --- - --- . — ..-- -- --..w...) , .:. , -*•:''' - , . .....-----------. „,,..„. _ _ CITYOF 1 CHANHASSEN . 0‘4.... 1 690 COULTER DRIVE • P.O. BOX 147 • CHANHASSEN, MINNESOTA 55317 1 (612) 937 -1900 • FAX (612) 937 -5739 1 • MEMORANDUM DATE (mm /dd /yy): 05/13/92 1 TO: Sharmin Al -.:aff TITLE /TO: Planner I THROUGH: TITLE /THROUGH: 1 FROM: Steve A. K:: chrr,an 4;,Cf k TITLE/FROM: Building Official II SUBJECT: 92 -5 ZUB, 92 -3 REZ, and 92 -6 WAP; Bluff Creek Estates • I have the following comments and recommendations on the proposed development' 1. , lowest floor elevation: and garage floor elevation for each dwelling shcw_,_ shown on the grading plan. 2. The Inspections Division must receive copies of final approvals for all corrected lot:: from the project's geotechnical engineer before building permits will be issued. 3. The pipeline easement should be shown on individual certificates of II survey. 1 sr 1 1 1 If" 1 t9 PRINTED ON RECYCLED PAPER City of Chanhassen 690 Coulter Drive, P.O. Box 147 Chanhassen, MN 55317 (612)937 -1900 Date: May 5, 1992 To: Development Plan Referral Agencies From: Planning Department By: Sharmin Al -Jaffa Planner I Subject: Preliminary plat of 614 acres single family one outlot; rezoning ary p . 5 a es mto 78 sing a fame y lots and o zoning from A2, Agricultural Estate to RSF, Residential Single Family; and wetland alteration permit for development within 200 feet of a wetland, located south of Hwy. 5 on the west side of Audubon Road, Bluff Creek Estates, Keyland Homes. Planning Case: 92 -5 SUB, 92 -3 REZ, and 92 -6 WAP I The above described application for approval of a land development proposal was filed with the Chanhassen Planning Department on May 5, 1992. I In order for us to provide a complete analysis of issues for Planning Commission and City Council review, we would appreciate your comments and recommendations concerning the impact of this proposal on traffic circulation, existing and proposed future utility services, storm water drainage, and the need for I acquiring public lands or easements for park sites, street extensions or improvements, and utilities. Where specific needs or problems exist, we would like to have a written report to this effect from the agency concerned so that we can make a recommendation to the Planning Connission and City Council. 1 This application is scheduled for consideration by the Chanhassen Planning Commission on June 3, 1992, at 7:30 p.m. in the Council Chambers at Chanhassen City Hall. We would appreciate receiving your I comments by no later than May 18, 1992 . You may also appear at the Planning Commission meeting if you so desire. Your cooperation and assistance is greatly appreciated. 1 1. City Departments SMN Dept. of Natural Resources • . City Engineer 87 Company b. City Attorney W B or United) Cc: City Park Director 1 611: Fire Marshal ' le 'c Company �iBuilding Official NSP or MN Valley) • CPWatershed District Engineer 10. DOWDEN Cable System Soil Conservation Service 11. Roger Machmeier /Jim Anderson 1 4. MN Dept. of Transportation 12. U. S. Fish and Wildlife r 5. U.S. Army Corps of Engineers j)carver County Engineer 1 6 'Minnegasco go Williams Pipeline 1 1 WILLIAMS PIPE LINE /NC. E WILLIAMS COMPANYJJ7 ONE OF C O M PA N/ ES, • 2728 PATTON ROAD ST PAUL, MN 55113 May 14, 1992 1 Sharmin AL -Jaff City of Chanhassen 690 Coulter Drive, P.O. Box 147 Chanhassen, MN 55317 Re: Project #1566 Bluff Creek Estates Development N1 /2, NE1 /4, Sec. 22 T116N R23W, Carver Co., MN WPL Tract #7344 Dear Ms. Al -Jaff: 1 This letter is to confirm that Williams Pipe Line Company (WPL) is :7. receipt of the plans regarding project #1566, Bluff Creek F r=ates Development, in Chanhassen, Minnesota. I have forwarded plans to our engineering department in Tulsa, Oklahoma, for :ew and comment. All plans must be approved by WPL's engineering department before construction /excavation can begin. Williams Pipe Line has one line that traverses the area in question, that being our #6 -12 inch petroleum products pipeline. All plans concerning excavation and construction on or near our easement must include the following warning: WARNING!!! PETROLEUM PRODUCTS PIPELINE(S)! Before Excavating Contact: Tom Smith, Right of Way Coordinator Northern Region Williams Pipe Line Company 2728 Patton Road St. Paul, Minnesota 55113 (612)633 -1555 As per your request WPL can set up a time with our line locator in 1 the area to flag and stick the line for depth. Sincerely, t Thomas C. Smith , ROW Coordinator cc: J.K. Myers Northern Region C.K. Danchertsen r MAY 1 S 1 CITY OF CH. 4.1:1-,�c::.4-0; PHONE (612) 633.1655 1 DOUGLAS J & C BARISNKY WAYNE & CINDY BONGARD MARION MICHEL 8731 AUDUBON RD 8831 AUDUBON RD 8941 AUDUBON RD CHANHASSEN MN 55317 CHANHASSEN MN 55317 CHANHASSEN MN 55317 R W& CM ENTINGER CHARLES W MATTSON ROGER A & G SCHMIDT • 8851 AUDUBON RD 2870 WHEELER ST N 8301 GALPIN BLVD CHANHASSEN MN 55317 ROSEVILLE MN 55113 CHANHASSEN MN 55317 1 GERALD & L GUSTAFSON AUDUBON 92 CAHN -LAND PARTNERS 1 8341 GALPIN BLVD C/O LARS AKERBERG 200 HIGHWAY 13 W CHANHASSEN MN 55317 P 0 BOX 158 BURNSVILLE MN 55337 CHASKA MN 55318 HN MERLE D & JANE YOLK HOWARD & L JOHNSON JAMES & BARBARA NELSON 16925 CO RD 40 8250 GALPIN BLVD 591 HERON DR • CARVER MN 55315 CHANHASSEN MN 55317 CHANHASSEN MN 55317 1 CHARLES & DEBRA OLSON ARGUS DEVELOPMENT INC MICHAEL J & J COCHRANE 1581 HERON DR 18133 CEDAR AVE S 1751 SUN RIDGE CT 1 CHANHASSEN MN 55317 FARMINGTON MN 55024 CHANHASSEN MN 55317 I DONALD & MARSHA WHITE GERALD & KARLA ALVERY MARK & DEBRA LAASER 8850 AUDUBON RD 1831 SUNRIDGE CT 8037 ERIE AVE CHANHASSEN MN 55317 CHANHASSEN MN 55317 CHANHASSEN MN 55317 JEFFREY & GAIL MOODY 10334 ENGELWOOD DR EDEN PRAIRIE MN 55347 1 1 1 1 1 1 1 Planning Commission Mec,_ing June 3, 1992 - Page 19 Aanenson: Then on the boats on land, that would be included in total number of boats? Emmings: Well yeah. I was afraid, yeah. 1 Aanenson: Well canoe (rack, we're assuming you can put 6 canoes in there. I guess we can put it'that way. Is that what you're assuming? Emmings: Yeah, I'm assuming that the canoe rack is. Any boat that's not a powered boat. A sailboat's fine. A 12 foot fishing boat is fine. I thin we lived through that when we talked about canoe racks originally. Canoes are fine but not boats with motors. Conrad: And you agreed with the power lifts? ' Emmings: Yeah. And the rationale there is the lift is just one way to dock your boat and why get into it. Ahrens: Is there a second? Erhart: Yeah, I'll second it. ' Emmings moved, Erhart seconded that the Planning Commission recommend that the Pleasant Acres Non - Conforming Recreational Beachiot be allowed to have twc docks, one 96' x 67' in length and the second one 96' x 12' in length,' with space for 10 motor boats to be docked, continued use of the boat launch, parking, chemical toilet, motor vehicle access, and swimming beach All voted in favor and the motion carried. ' PUBLIC HEARING: BLUFF CREEK ESTATES. KEYLAND HOMES LOCATED SOUTH OF HWY 5 ON THE EAST SIDE OF AUDUBON ROAD: A. REZONING FROM A2. AGRICULTURAL ESTATES TO RSF, RESIDENTIAL SINGLE i FAMILY. B. PRELIMINARY PLAT TO SUBDIVIDE 61.45 ACRES INTO 78 SINGLE FAMILY LOTS. I C. WETLAND ALTERATION PERMIT FOR CONSTRUCTION WITHIN 200 FEET OF A WETLAND. ' Public Present: Name Address 1 Dave Johnson 821 Creekwood Gayleen Schmidt 8301 Galpin Blvd. Rod Grams 8640 Audubon Road Gary Horkey 3471 50. 173rd, Jordan James R. Hill 2500 CR 42, Burnsville Richard Schuller 2724 Isle Royale Court Sharmin Al -Jaff presented the staff report on this item. B II Planning Commission Met. ing June 3, 1992 - Page 20 II Ahrens: Sharmin, I have a question about, on page 2 of your report where II you talk about Willians Pipeline Company with their 75 foot easement. And you state that, the third• sentence down. Your questioning the design of two lots, Lots 10 and 14, Block 2, that they're buildable. What about all the rest of these lots? Like I guess Lots 11 thru 13 also and 29 and 30. Al -Jaff: Usually when we look at a parcel, we make sure that you can place an average home with dimensions of 40 x 60 feet. You can place a 40 x 60 1 feet on those parcels. Ahrens: On these other ones? 1 Al -Jaff: Yes. Krauss: If I can add too Commissioner. The easement is useable as rear II yard area. The home just can't be in it or a deck can't be in it but gardens, yards, possibly even play structures I suppose can be within that area. II Emmings: How deep is the pipeline? Al -Jaff: Normally it's 3 feet. II Krauss: The pipeline itself? II Al -Jaff: Yes. Emmings: Is that all? II Al -Jaff: When we spoke to the pipeline company, they said becuase this area has been farmed, they might have lost some soil but normally it is a depth of 3 feet. I Ahrens: But there's no problem with Lots 11 or 13? They could fit a 40 x 60? 1 Al -Jaff: We don't foresee problems with it. Unless they decide to build extremely large homes which then we would recommend that they find I different sites. . • Ahrens: I hope the City makes sure that there are signs put up in their backyards warning them not to plant trees back there. 1 Al -Jaff: Williams Pipeline usually sends their staff to meet with people that live along the easement to educate them about problems that might take 11 place if they should dig in that easement. Ahrens: This is a public hearing. Is the applicant here? II Hill: Madam Chair, if I may. Jim Hill. Consultants for Keyland. Ahrens: Sure, would you like to step up to the microphone please. II 11 Planning Commission Me ing June 3, 1992 - Page 21 Jim Hill: Madam Chair, Jim Hill. Consultant for the applicant and the applicant here is represented by Gary Horkey who's a principle of Keyland , Homes and Dick Schuller who is their sales and marketing director who will speak to the two lots that staff had concern about. Show you how their homes can fit on those lots. 10 and 14. And then Rod Grams, the fee owne who'd like to speak to you about the homestead driveway. If we may. Dick Schuller: We had an opportunity to meet with staff here a few weeks , ago. She gave us a chance to look at this and suggested that we come up with a couple, some plans that would fit on the lot. What we did is we had the engineering company... And the line that you.see across the front there is the setback in front of the house and your 10 foot setbacks on thll side. The line in the back is a 10 foot setback along the pipeline easement. Now an FHA loan you'd need to be 10 feet away from that easemen because all these homes are, in the range where they're really not going t be getting that basic financing so conventional financing you can bring y house all the way up to the dotted line. So we're within 10 feet away f that closest point. 10 feet away from the easement line. , Ahrens: What about a deck on that? Dick Schuller: The deck would be on the west side but you're also 10 feet' away so you're 10 feet plus whatever this space is which is a good another 10 -15 feet on that side so you could put a real large deck there. This is the house that one of our nicer homes that we'd be building. This is the II plan that. This would be the sketch if we got it platted out on Lot 14. So it would be real easy for us to be able to build that house on that lot. We don't see that as a problem at all. , Ahrens: Why does the City see that as a problem? Dick Schuller: It's really difficult to see sometimes on a small picture II so we've measured it out. Ahrens: Sharmin? 1 Al -Jaff: We didn't think that you could fit a house easily on it. It would be a tight squeeze. Ahrens: What do you think of what he's saying here? Al -Jaff: What are the dimensions on it? 1 Dick Schuller: I had a little picture of it. This house here is 60 feet wide and the deck on it is 34 feet. So it's not as deep of a house as 40 II foot. That makes 60 of the different although when I think she originally drew that up there was a concern about this 10 feet. Trying to stay 10 feet away from that back easement line. That really isn't a requirement o a conventional home so as long as we don't need to stay within, as long as we go up to the easement line... But it's just less of a concern because of that. Krauss: It's our position that the developer has an obligation to demonstrate that the lot's buildable in a reasonable manner. In this case 1 1 Planning Commission Me( '.ng II June 3, 1992 = Page 22 II it appears that he's done so. I would ask you to let the condition stand and we would work on this a little bit more prior to City Council. You konw I don't think they're doing that in this case but if you can squeeze a II certain building footprint onto a limited site and it doesn't mean that it has a great deal of flexibility. In this case it looks like there is ample room. And I guess keep in mind though that again that utility easement is a great deal of open space. It is not, I mean it's the termination of a I buildable area but it's not the termination of useable space. But we'd like to research that a little further. Ahrens: Okay. Dick Schuller: That would be your one lot. This would be the footprint on that one house. The other one is just, even easier for us to work on. The 1 garage would be on, right there. We have movement left and right...street real well and then curves the way... Lots of space for decks out in the back on the left side here. Or we could put the house around here 1 directly... Ahrens: Would you like to address any of the other conditions set forth in I the staff report? Jim Hill: Madam Chair, the Keyland Homes accepts the report except for the comment regarding the two lots which they've shown they can build on. And I then Rod Grams would like to address the driveway on the homestead. The other conditions are acceptable. II Ahrens: Thank you. Jim Hill: I think he said he only has an hour to talk about that driveway. I Rod Grams: I've only got an hour. Ahrens: You do? 1 Rod Grams: To keep you here. Thanks. I'm Rod Grams. I currently live on the homestead and as most of you I don't know maybe are familiar with the ' house, it's a Chaska brick farm home and it has a lot of historic value in the area and we've gone to great lengths in this project to try and maintain that historic value of the house. Part of the Planning or in my view is we've tried to put it on a larger area because of the uniqueness of I the house to blend in with the rest of the subdivision. But to take away those two driveways would destroy the character I think of the way the house sits now on the site because it wouldn't then match with the other II three homes along the same street. So what I'm proposing is that the driveways be allowed to remain as they are because it is only for the one house. And again it would stabilize or maintain the integrity of the site I as it is and the way the house is there now. So if you take those driveways out and to push it off to the back I think would not maintain the integrity that is there now. II Ahrens: Do you see the driveways following the westerly lot line of 8 and 7? Lots 8 and 7. II 11 Planning Commission Met. ing 1 June 3, 1992 - Page 23 Rod Grams: No. I would like to see them stay where they are. The ' existing. Ahrens: Where is it now? 1 Rod Grams: They come out to Audubon Road. And like I say, it's only for the one house so I mean you wouldn't get that much traffic from it but to I just leave the site as it is. Because to take the driveways out and to change it, it would also change the whole apperance of the house and it wouldn't. ' Conrad: Why would it do that? Rod Grams: Because of the way it's setting there now. I think the way th house is and the historical preservation efforts that have been made of al the houses in that area. So I think to take the driveways out, I mean you would change the whole appearance of what it is now. And we've gone to I great lengths to try and keep the house and to keep it and to blend into this subdivision but it's unique and it should stay that way from the rest of the subdivision. Conrad: The driveway comes from Audubon and it goes straight up to the front of the house? Rod Grams: Correct. Between the house and the garage there on the side. I Ahrens: It was a safety issue the city was concerned with right? 1 • Al -Jaff: Correct. Rod Grams: But it's there now. ' Ahrens: But there aren't the other two roads. That Road E and Road D. What's the minimum on a collector road? ' Hempel: Access we consider 500 feet. I'd like to point out that Mr. Grams, is there in fact two accesses to that lot? Rod Grams: Yes. Hempel: It's a horseshoe type driveway at this time so actually it's two I driveway entrances to that lot. Ahrens: Do you want to maintain the. horseshoe? 1 Rod Grams: It's been there all along, yes. I mean it's been there for, it was build in 1900's so I mean. Erhart: Yeah but you're tearing down the barn right? Rod Grams: That's right. ' Erhart: So I mean you aren't leaving it the same. 1 Planning Commission Me. Ong June 3, 1992 - Page 24 Rod Grams: But we are trying to preserve the house the way it is. And the house is unique and to take it away and try to move the driveways out, then you're trying to take a nice big old brick farmhouse and trying to conform 11 it to a lot where we're going to be building a newer house so it's not the same. So we're just asking that the uniqueness that is there now, to stay there the way it is. ' Hempel: If I may add another point. We will be requiring deceleration end acceleration lanes into and from site and, that may also impact the driveway access to the existing house there. Ahrens: I'm kind of confused about your vision of access to tots 7, 8 and 9. The City's. Sharmin, in your staff report you said it should be pointed out that Lot 9 should also gain it's driveway access off the interior street Road E. Are you expecting then that all three lots, 7, 8 and 9 have access off of Road E? ' Krauss: No, I don't think that's ever been proposed. We would typically put a condition in there just to make sure that that doesn't happen. ' Erhart: 9 is the temporary one right? Al -Jaff: Correct. That's when they will build a model home. It will be sharing the existing driveway. That's where Road E goes then. Oick Schuller: The reason we... This road right here, we're going to be trying to be into the Parade of Homes this fall. Our concern is that this street may not be ready yet so we were hoping to be able to come temporarily off of Audubon through Rod's driveway to get to our house. When this street comes in, then this driveway's going to go here across from Audubon... So that would just be temporarily that will be hooked up...just for a month until, and we're not even sure that that will be the case. it depends upon how long or where we're at on the street. Emmings: There's nothing that keeps you from putting in a paved driveway over that easement? That's fine is it? Ahrens: Williams Pipeline allows a paved driveway over that? Al -3aff: Yes they do. ' Jim Hill: Madam Chair if I may. Exhibits indicate' that driveways... Rod's talking about the homestead maintaining his own driveway along with the Chaska brick home and not take away the individual access as there are some other Chaska homes, brick homes on Audubon and not as proposed by staff to bring a driveway from here. Rod Grams: We want it to remain. I mean if it does have historical value and to have it retain that is important I think. I think the access there is going to set it apart. Ahrens: Okay. Anything else? Thank you. Would anyone else like to address the Commission? 1 1 Planning Commission tlet._ing June 3, 1992 - Page 25 Erhart moved, Ledvina seconded to close the public hearing. All voted in 1 favor and the motion carried. The public hearing was closed. Ledvina: One thing that I noticed as I was going through the information 1 here. I have some questions regarding the variance that was proposed for that building. I'm wondering if staff could explain how the situation meets the criteria for a variance because frankly I don't see specifically!' why it's being proposed. Krauss: Well, this explanation is not going to fall within the normal legal context of a variance, which frankly was the reason that I wanted toll get a range of variances reviewed by the Planning Commission instead of the Board of Adjustments. The Board of Adjustments is very good at taking a variance in it's usual hardship context for a garage or for a deck or you II know, to make a lot buildable. What they're less adept at doing is taking a proposal, a development proposal in total, you know that does this thing work? Is this variance not so much a hardship but does it reflect the way ' this property should reasonably be developed. And in this case we thought it did. I mean theoretically you can bump property lines further out to eliminate the variance. Conversely you can, or alternatively you can require that the garage be torn down and moved. I mean we've done that. I the garage is not in great shape, we've had that done in the past too. Bu in this case there's a tree line back there. It lends itself to be the acp'opriate place for the property line. Moving the property lines significantly raised some problems with interior lots further in. So whilil I can't tell you that it's a traditional hardship, it does fall within the realm of things we've considered at times in the past. 5o I hope that, that probably didn't put your mind at ease. Ledvina: You know I look at the issue as far as the vegetation is concerned and in the winter there isn't vegetation and you can see thru II tree lines. Our activities, our approvals at this point don't in the future prevent those trees from dying or being taken out. I see the issue with maybe contrasting building styles with an older shed or garage there II with newer style houses on, I'm not so certain that that really works together and I'm wondering if we should try to separate that as much as possible by the ordinance. Is there another mechanism we can use besides variance to allow this type of situation? Krauss: Short of not catching it in the first place, no. There really isn't. I mean it does exist. Now again, there are alternatives and the alternatives do include bumping the line or tearing it down. I'm looking at the lot right behind it. Lot 5 is a 16,000 square foot lot and it's possible that we could kick the lot line around a little bit to mitigate I that. I'm not sure we can eliminate it. Ledvina: That would make that lot 14,500 roughly. 14,500 feet and that would be less than if you took it off the whole map. Krauss: No, it's 16,000 now. Ledvina: Right. You could just do that along the southeast part of that II lot line. 11 • 1 II Planning Commission Meg ing June 3, 1992 - Page 26 II Krauss: We can sure look at trying to do that. Ledvina: Yeah, I would be against the condition for the variance. I just II don't believe that it meets the intent of, or the letter of the variance and I think some alternatives should be investigated for that. Otherwise I really didn't have any other comment. II Emmings: I agree that we should do something other than a variance. Maybe we can be more flexible. I still think though...and I think if something can be done to eliminate granting variances, it should be done. If they I make that lot in back a little smaller, I'd rather have it that way. As far as the driveways go, I guess I don't know how much distance there is between the ends of the two ends of the U and particularly to the one to the south would be more concern. There's only one person going to be using that driveway so it isn't a lot of use but would you regard that as being unsafe or too close? II Hempel: It sets kind of an example for the other 5 homes also that are adjacent to Audubon Road which someday will be developed also. Their access on a horseshoe driveway, granted it may be single use or whatever I but they do generate average 8 to 10 trips a day. It's an additional curb cut along the road and it may also impact an acceleration lane and so forth. II Ahrens: What's the speed limit on that road? Hempel: Right now it's 45. Actually it's probably a rural standard, south I of Huron Drive it's probably 50 mph. There's a crest there however with some sight distance but eventually when the road is urbanized, similiar to what was done north of this development where it made the 4 lanes with curb II and gutter and so forth, use is intensified. More curb cuts out there. Speed limit may be reduced to 35 or 40 eventually. II Emmings: Does the County have anything to say about the number of accesses onto that? Hempel: No. This is not a county road. This is a city street. II Emmings: I guess what I'm trying to get you to commit to is, do you think that it's a bad situation? A situation that should be avoided by us? ' Hempel: We believe it is, yes. Or at least limit the driveway down to one access. • 1 Emmings: That was my next question. If we take out the U and just give him a single drive in, would that make you feel any better? II Hempel: Every little bit would help. Krauss: If I could put into context. I don't remember the exact amount of II traffic that's being forecasted by the Eastern Carver County Study but I thought it was somewhere in the neighborhood of 6,000 to 8,000 trips a day. Emmings: For? II II Planning Commission Me. .ing June 3, 1992 - Page 27 Krauss: When this area is fully developed. TH 101 right now is 10,000 ji trips a day so if that puts it, you can get a feel for that. So 50%-60% o what you see on TH 101 today is going to be the ultimate traffic on Audubon Road. 1 Emmings: Another alternative might be to give them one driveway and put a driveway easement across TH 7 and put that in our pocket in case it's ever , deemed to be a hazard? Krauss: You can certainly use that as a fall back position but those things tend to, if they're not utlitized at the outset, they typically won't be. Also, as Dave points out, we do have similar situations with the" Chaska brick homes across the street. Now they're all sitting on 5 and 10 acre lots. In fact, the developer of Lake Susan Hills. Hempel: Joe Miller Homes. Krauss: Joe Miller Homes is talking to us about the possibility of developing directly across the street from the north road. And that one ill a Chaska brick home. It's Willy Molnau's. And we've even seen a concept for that one and as I recall, I thought it was going to access internally I off the new street. Hempel: I've never seen it I guess. Emmings: It's hard sitting up here to know whether this is dangerous or not dangerous. I think as a general rule we should limit the number of accesses onto Audubon'but I can see the point of wanting to maintain the II driveways since everything is oriented that way and my position on this I guess would be that we go along with the, I'm going to have to go with the City Engineer and say that the driveway is going to have to go out thrc ,Igh Lot 7, unless the applicant can convince the Engineer from now until the City Council, that it's a safe thing to do. That's all I've got. Conrad: For our front yard width, what do we do? Especially on 11 cul -de -sacs. It has to have a 90 foot width at what kind of setback from the road? Al -Jaff: 50 feet setback. ' Conrad: And all these do meet that? Al -Jaff: Correct. Conrad: There are a lot of narrow lots here and fairly deep. The square II footage by the depth. But I guess I don't have a concern with that. I am struggling, I don't think we should grant a variance that was for the out building or the garage. But I am struggling with the curb cut for the farmhouse. And I kept looking for another way to design this and I can't do it in 5 minutes. I have a tendency to want to grant one curb cut for the Lot 8. My concern is the, what is necessary for safety for Road E and 0 and I don't know that right now. Therefore, my tendency is to go along with Steve's motion until the applicant can sell our engineer on the safet and the engineer knows the acceleration and deacceleration lanes. I think 1 Planning Commission Meeting June 3, 1992 - Page 28 the farmhouse orients to the road. I guess that tends to sell me that it should have Audubon access but I'm going to go along with a motion similar to Mr. Emmings to allow the applicant to. I'm concerned about safety and I need the applicant to be talking to the engineering department on that one. That's all. ' Ahrens: Any discussion? Erhart: Yeah I do have some. Maybe I'm tired and crabby but you know, for 6 years I've been trying to get a plan on this Bluff Creek Greenway. Six years ago a development came in and put houses where I thought we should have preserved a corridor. We were real lucky back then because that development never got built. We all committed at that time to lay out a plan so when south Chanhassen got developed, and properties which include Bluff Creek came in, that we'd have a plan. I walked out there this afternoon and I had no foggy idea where, in walking around that property, ' where the backs of those houses are going to be relative to this greenway corridor. I'm looking at it and looking at the contours. I hope it doesn't interfere with the vision that I share with a lot of people on this greenway. But after this thing gets approved, the worlds not going to move it. I hope all of you, we got it on the action tonight and I don't understand why the Park and Rec, who is spearheading this effort? Park and Rec or is it us or who? ' Krauss: Park and Rec has really taken this and hopefully is running with it. Erhart: Running with it? Krauss: There is no plan that exists. We have been taking land to get the trail corridor in. Erhart: I'm not talking about a trail corridor. We're talking about a ' greenway here. Krauss: Well the greenway is there Tim. ' Erhart: Maybe your idea of there and my idea of there might be two different things. ' Krauss: I think you've got a substantial amount. That's the half of the greenway that happens to be on this property. The other half is on the other side. The creek channel itself is way up there. ' Erhart: Okay, the line that you cross, does that include what's currently tilled also today down there? 1 Krauss: Yes. Part of that is. Rod Grams: No, the line falls just about... Erhart: So the tilling would be on, it's under the high water mark or above it? 1 Planning Commission Me ing June 3, 1992 - Page 29 Rod Grams: Some of it goes below... ' Erhart: Well, I'm not asking to hold this up but I think we'd would use this to tell us. ' Al -Jaff: We were out there and. Krauss: We're a little confused. I mean Rod lives there and obviously knows the place a lot better than we do but we were convinced that there i tilling in this corner. And then when we get up on the Ryan piece, I know that some of that area... • ' Rod Grams: A lot of that is meadow grass right now. There might be some tilling... Krauss: But in any case, there is a substantial amount of land being reserved so that we not only have green space. Frankly the green space there, it is not, we're talking about a ditched creek in this area and I think at some point in time the city's going to want to come in and do tre planting and whatever else along there. Erhart: Right, and what you've got to have to do that is you've got to II have enough high land so the trees will live. You can't plant oak trees and maple trees in a wetland. That's my point here. Krauss: That is true. But a lot of this area is out of the wetland proper. It's mostly in the flood plain. 100 year flood plain. Erhart: I couldn't relate this plan to that and that's why I think it's I important that we get in and we, just like we're doing on TH 5. You know everybody who lives north of TH 5 wants to get this TH 5 defeined. Well I want to, for 6 years have wanted to get this Bluff Creek greenway defined so when we got plans, we could actually compare it to some elevations and say, okay. Yeah, this is reserved for a future greenway and we're not going to have people's properties and we may have to buy that land at that time but today I'm real concerned that we don't know what we're doing and I can't tell. Krauss: Well I'd certainly support the idea of the Planning Commission II stM ing a desire to have a specific plan developed for the corridor. You kn:c,w we have gone on record of going to the Park Board and asking for just that and there is a meeting on June 18th that has,.a special meeting that ' has to do in part with the potential of a golf course. But the other part of that agenda is Lance Neckkar from the University who's worked with Bill Morrish and us on the TH 5 matters, did a design for a Bluff Creek II Park that was featured at the Minneapolis Art Center. I have not seen it yet myself but he submitted that for design competition and I'm kind of hopeful that that's going to get the ball rolling to do just what you're II asking. Erhart: Yeah, that's my concern. In the future when the city, you know w all talk about preserving open space and to me this is the perfect example of doing that. In order to get what I envision as a Bluff Creek Park, 1 11 Planning Commission Me_ ing June 3, 1992 - Page 30 you're going to have to have trees on either side as a buffer between the trail and the developments along the park. Krauss: Yeah, clearly that's the case and clearly that's not available in this area. It would have'to be planted. But while I can't. Erhart: It's high landed. The question is, is there adequate upland to ' plant oaks and maple and stuff with this plan? Between the backs of the houses. Krauss: Based upon what I know now, I'd have to say yes there is. And again, we're talking about land that might flood every 50 to 100 years. Erhart: That won't kill trees. Krauss: While unfortunately Tim, I can't show you the plan for Bluff Creek. I know that at a staff level we have some very firm ideas as to what that might embody and we've taken, you might recall on the Ryan development we took that outlot with the island in it and the creek that has the only mature trees left south of the railway tracks. We're working with the railroad to get the underpass. The Hans Hagen development fits into that concept and we've been working to get that further north and then with MnDot so there's a lot of things happening. There just is not a plan showing how it's going to work. ' Erhart: Well I just ask that we get on with this. I would ask that the Commission consider this and if the Park and Rec isn't moving on it, that ' we assume responsibility and get on with it. Maybe take that later on in discussion so let me go ahead with this. Should we be doing anything here today to provide utilities to Lot 1, Block 1 in Sunridge Addition? We ' should have in our mind when that lot gets developed, that that be an urban lot. Let it be divided into 4 or 5 logical lots and get it on the tax rolls. Krauss: We have not been requested to do that. We spoke, I mean I think we spoke to the person that bought it. That does cause a problem. That is the problem that we've been telling people about that Timberwood's going to ' face and Sunridge Court's going to face. That you have one lot, two lots left that are going to attempt to be rezoned. Remember this is not RSF land. But at the bottom end of a large lot, rural cul -de -sac is somebody's going to sooner or later request urban density. That's a tough one. I'm not certain the city's going to look on that kind of thing favorably. I'm sure the neighbors, reasonably sure the neighbors wouldn't. I don't know if that's a reality. ' Erhart: I'm not trying to decide that today. I'm just asking. ' Krauss: As far as the ability to serve? Erhart: Ability to put in sewer and water into,that lot. Are we doing anything today that would... Krauss: I guess I'd defer this some to Dave. My understanding is that there is a utility easement that comes down through that area and we could i. 1 Planning Commission Me ing June 3, 1992 - Page 31 possibly look at terminating something there. 1 Hempel: I was just going to point out that utility service to these phases, Phase 1 will be served from the sanitary sewer line...extending down Audubon Road on the west side which will serve approximately an area here to, from Audubon,Road to approximately here. The remaining area west of there will be served at a later date or next year I guess when the trunk interceptor is brought up along Bluff Creek and then crosses across Bluff II Creek to service that area. Because of the lay of the land, it drops off very severely, elevation wise, it doesn't work without bringing this line across from Bluff Creek. So at that time we can make a provision. They I are providing a drainage utility easement across here. I believe it was for the watermain extension and storm sewer in this area to stub out sar -y sewer lines to service in the future these lots. L:: Okay, so there is an easement there? ,_mpel: There is an easement in Sunridge. ' Erhart: What about this development? Is there an easement here? Hempel: Yes. They are providing a 7 1/2 foot each side and we're 1 recommending that be increased to a 10 foot wide each side. Erhart: Okay. 5o if somebody wanted to come in and petition to get that II moved into the MUSA line, they have the provisions to hook in? Krauss: It is within the MUSA line. ' Erhart: No, Lot 1 isn't. Krauss: Yes it is... 1 Erhart: No, I'm talking about Sunridge. Oh it is? Okay. Alright, so he can get access to sewer and water? , Hempel: That's correct. With future phases. With this first phasing, no. Erhart: What are we doing, Paul or Sharmin, what are we doing on water 1 quality with regard to I guess our swamp committee. Basically trying to ensure that every development has post runoff that's equal to pre runoff. What are we doing in this plan to assure that? It wasn't clear to me. We're not adding any holding or any retention ponds or anything. Hempel: With this first phase, they are not providing any interim storm sewer ponds, retention ponds. The ultimate plan does provide two retentio ponds on the westerly portion of the development. If you look at the grading plan provided there, it will show two small retention ponds. Erhart: Okay. Now is that discussed in here? Hempel: We have made mention of it in the staff report, yes. In fact in II the conditions of approval I believe it's also stated. • 1 1 Planning Commission Met._ing June 3, 1992 - Page 32 Erhart: Okay. The lots backing up to Audubon Road Sharmin, are they, given that they're double sided lots, do they meet all the standards regarding depth and setbacks? ' Al -Jaff: Yes. Erhart: Okay, so we're sure that there's adequate room to put in this ' landscaping that they've shown here, which the way it looks on this drawing is great. But is the drawing what we're really talking about doing here? Krauss: We would commit them to this landscaping .plan the same as any other developer. Erhart: Yeah. It doesn't look like they're going to have much of a back, well it looks like their whole back yard is going to be wooded the way this looks. Is there a berm there at all? Al -Jaff: No, there isn't. ,. Erhart: No berms. Our ordinance does not require, or our new landscaping q P 9 ordinance does not require a berm there? Krauss: It's either /or or both to accomplish the goal of providing screening. Erhart: And you're satisfied? Krauss: They're doing quite an extensive landscaping plan. Erhart: Alright. Well I didn't notice the berm although I missed the ponds so. Okay, I agree with Steve and Matt there. You know as much as I'd like to, it doesn't make sense to worry about the 20 feet. I just think we can start getting into a habit of allowing variances just... makes sense. That's the problem 'but it's also what's right with our system of ordinances. I would agree that we should try to keep the things meet the ordinance. Thought I was done didn't you? Okay, now we get to this conservation easement. I noticed in the Minutes you didn't take that up at the last meeting. Or did we? Krauss: No we didn't. You asked that it be. 1 Erhart: Yeah. And I know I've asked that we do this and I'm not going to get into detail tonight but I've got a couple questions. Help me. What do you mean by a conservation easement on what is a finch row of trees. What ' does that mean? What is this conservation easement going to say? Krauss: Well, you know unfortunately I have a copy of the conservation easement on my desk upstairs. It basically says that the developer's not allowed to remove it and it even says, as I recall, that the homeowner can thin and maintain and remove diseased trees. Otherwise, the trees are to remain. Erhart: He can't take trees out? Or thin, does that mean? Is that the terminology that's used? 1 1 Planning Commission Me. ing June 3, 1992 - Page 33 1 Krauss: I don't recall exactly. I mean I'm hoping that Roger's terminology is more explicit but I don't recall. Erhart: Well, the point I wanted to get into the discussion was that I guess I am of the belief that a homeowner has the right to do what he want with his trees and we shouldn't get ourselves in the position here of essentially defining people's lives so strictly that we go in and tell them what trees he can remove in his yards. I don't want to get into that discussion here because it's not the subject on the agenda but again we're asking for that and I think we need to really think that out. Now in this case, are we talking about conservation easements.just on the., it seems toil be at the discretion of the staff. Are we talking about easements just on the trees along the north boundary? Krauss: Yes. We considered doing it on other trees that are highlighted I as being preserved in this plan but we reasonably didn't think that they stood much of a chance. Erhart: Okay. If we're going along the north boundary, I guess I don't have a problem because they're in the back yards but once again, I think it's a subject we need to discuss because I think we need to think it through and we're starting to see a lot of these things and to the extent that the one development we actually changed our setbacks to preserve tree and quite frankly, I just don't, why we have a problem with developers, used to have problems with developers cutting down trees. Most of them II don't do it today. We had one and I'm all for holding them to the fire bull when we get to the homeowner, that's where I want to have this discussion. So I'm okay with as long as we stick to the north area. I think it's impractical to get in and try to, this tree control thing so. The Park all Rec recommended that the city acquire ownership of Outlot A. And it appears to be, then change to where we're asking the developer just to tur over Outiot A to the city. Is that, does the process seem equitable? Or is that we're just doing that or what is our city's, what is the process for making these things equitable? Krauss: This is our means of preserving the Bluff Creek corridor. In ' terf,- of equity, first of all we're talking about land that has marginal va:_:3 since it's all in the flood plain and can't be developed anyway. Secondly, there is a cost offset and as I recall, the Park and Rec Director's report is that in exchange for the land, they are not going to be required to pay trail dedication fees. Erhart: But then it adds in, they're putting in a, I'm a little confused. Aren't we asking them to actually put in a trail? Krauss: No. We're asking them to put in a stub of a connection. What I that does is it's to provide access from this development to the future trail system that the city has to develop. I Erhart: Alright, so we're not asking them to put in some trail that we haven't really defined yet? Krauss: No. , 1 Planning Commission Meeting June 3, 1992 - Page 34 11 Erhart: Okay. Why did we ask the developer to remove the island that he was proposing on...? Hempel: We delete them for maintenance purposes. Vehicular access to it and so forth. Snowplowing reasons. They're essentially in the way. They're a maintenance problem if there's landscaping and so forth on it. ' Typically what goes in them is a landscape monument with a light shining on it or something like that. A more appropriate place for that would be on a lot corner entrance. One of the corner entrance. ' Erhart: What do other cities? You know Eden Prairie has got a number of them. ' Hempel: Some cities have them. Some don't. Ahrens: Have you ever seen what our snowplows do to the curb? They ' destroy them. Ours are destroyed every single year. Curbs and gutter. Hempel: It's hard on our trucks too when they hit them. Ahrens: Huge chunks of concrete out every single year. It seems like they need really expansive space in order to move the plows around, and they don't even make it then. ' Erhart: Well again, maybe that's something we need to discuss outside this development but again, I think they add character to the city. I hate to see it, just reject them cart blanche without some kind of value decision. I'm not an expert and that's not the kind of thing I'm going to decide by myself but again I would hope that we're just not throwing them out without some due consideration because I think they do give it some character and I again, after or before we maybe recess tonight, if anybody's interested in discussing it, then we should throw it out and do it so. Right now, help me understand this. The City trunk sewer and water improvement project ' will include construction of 8 foot sidewalks along the west side of Audubon Road. Yet the trail coming down to this development is on the east side. How does that all work out? ' Krauss: I don't know that any of us can adequately explain that. There were two separate public improvement projects that occurred. We had a group of residents that fought having a trail put in. Made it cross over. I don't know. Dave, do you have anything? Erhart: We've decided there's going to be a cross over? Krauss: There's actually several. Al -Jaff: There will be two. • Erhart: Oh, you're kidding. Ahrens: Back and forth across Audubon Road? Emmings: How many trips a day? 1 Planning Commission Me.._ing June 3, 1992 - Page 35 Hempel: Originally it was proposed to have a trail, the trail system down 1 along the east side of Audubon Road with the original Audubon Road improvement. However, I believe the Council felt at the time that there would be no use for a trail south of Huron Drive because there was really no development south of there. And so at that time they felt to leave it out until future development warranted it. I believe with Ryan Business Center, there was a trail proposed. Sharmin, is it on the west side? Ryan's Construction... It also looped back through the business center, i I'm not mistaken. Erhart: So we do have a plan for a trail. Once you get from Park Road II along the east side, is that the way I see that? Al -Jaff: Correct. ' Erhart: What is this on the west side then? Krauss: The original Audubon Road improvement plan, if I recall correctly" two years ago, was supposed to put the trail down the east side of Audubon. Area residents fought that. There were some trees located in the right -of way that would probably have had to be removed. Trail work put in as proposed. There's a consequence the City Council didn't put any trail in at all in that area. Erhart: Now that's developed? Is it too late to get a trail in there now" Krauss: The road project that had the trail attached to it is finished. Erhart: Yeah, I mean we still can et a trail on the undeveloped land nex 9 P to it perhaps or not? Krauss: When that land develops, yes. Erhart: Okay. Well, alright. Outlot extends to the east, okay so that'll the trail. On page 10, that's the trail you're talking about. Okay, I guess that's all. Again just a couple points here. The Park Commission's recommending that no development occur in the wooded area. What does that mean? Al-Jeff: Disregard that. Ern .= is driving a point with me. We're getting some and I'll tell' you what. I planted more trees in this city than anybody ever has but we are getting to the point where we're, tree nuts. The idea of not putting them in, the urban forest is something that's alive and over 30 years people do plant trees and today, I've read someplace recently again where because of urbanization there's less trees in our city. That's a bunch of crap. There's less trees in this city when it was farmland. There's a lot, more trees here today than there was 50 years ago. It's a living thing an trails are something that you put in and trail easements are permanent hundreds of years. The idea of not putting in a trail because there's a II tree is crazy. And not putting in decent setbacks because there's a tree is crazy. Those are permanent. Trees are something you can plant and in 30 years you've got a shade tree. This city's going to be here 100 years ' 11 Planning Commission Meeting June 3, 1992 - Page 36 and 200 years so we're setting a pattern here. I think we've got to really evaluate where we're going with this tree stuff. So I think that's all the things I've got. Ahrens: That's it for you? ' Erhart: That's it. Ahrens: Do you have anything specific on the wetland alteration permit or the rezoning? Sharmin, on page 11. The lot width and page 12 and 13. There's a number of them that appear to be less than the required 90 feet. Al -Jaff: Those are on cul -de -sacs. If you take the setback of 30 feet, then you would meet the 90 foot width required by ordinance. Ahrens: Okay, so every single one of these that's under, it goes on page ' 14 and 15, it seems like a lot of lots here. I count 29 lots. Al -Jaff: They're either on a cul-de-sac or on a curve and the ordinance allows it. Ahrens: Okay. Do you have a condition in here, maybe I just missed it about the applicants demonstrating to the staff that a house and deck can 1 be placed on those two lots? Al -Jaff: It should be in the preliminary plat. Ahrens: Maybe I missed it. Krauss: We believe there was one that probably dropped out in the editing 1 process. There should be one. Ahrens: Okay, and that should be in there? Krauss: Yes. Ahrens: And also I think we should have a condition that all driveways in ' the development not exceed 10% grade. This seems to be an issue with several of the driveways right? 1 Al -Jaff: It's in condition number 11. Ahrens: Okay. Is there a question for any of the other lots besides Lots 25 and 26? Maybe we should just in general put. Because it's not just those two lots we're concerned with. It's any lot in the development. Al -Jaff: Correct. Hempel: It appeared based on the contours that they provided that those were the only two lots impacted at this stage but if further modifications are done, so it's known that 10% is our maximum grade. Ahrens: On page 6 of your report, Sharmin you talk about protective measures being implemented for using snow fences and other means during the 1 Planning Commission Me�ing June 3, 1992 - Page 37 construction period. Do you have that in there? On page 6, your second II full paragraph? Al -Jaff: I don't have it as a condition of approval. ' Ahrens: And it should be. I have kind of a cryptic note in my notes here and I'm not sure what talking about but someplace in your report you II talk about redesigning and raising lot grades to minimize runoff toward Audubon Road. That's in here as a condition? If not, it should be. Hempel: Condition number 11, I think one of the sentences could be expanded. Ahrens: Pardon me? ' Hempel: On condition number 11, midway through it. The applicant shall amend the grading plan for Phase 1 to accommodate future upgrading of Audubon Road. That's where it was implied the back yards should be graded.' Ahrens: Maybe we should make it more specific because the concern seems to be pretty specific about the runoff. I agree with everyone here who said there should be no variance. I think that's a good idea. The driveway a , I think we should somehow try and have a driveway access there. I d think the main goal of the city is just to make sure that cars travel' as ._ckly as possible down roads. As long as we're building residential neighborhoods along collector streets, I think that we should be concerned with what they look like and how liveable they are and the character of the" city. Erhart: I didn't follow your recommendation. Conrad: What'd you say? 1 Ahrens: That there should be a driveway. We should allow a driveway. Conrad: A curb cut? Ahrens: A curb cut, yeah. A driveway out to Audubon Road. ' Erhart: Just leave it the way it is. Emmings: Single or U? 1 Ahrens: It doesn't matter to me. I mean whatever can be worked out with the engineering department. I don't see that the horseshoe, it hasn't beer' proven to me that that's a dangerous situation so. Emmings: Has it been proven that it's safe? I mean in his opinion. ' Hempel: It may be safe at this time but we're looking long range down the road. Down the way as the road capacities are reached. 1 Ahrens: But also as the road capacity is reached, the traffic slows down right? 1 1 II Planning Commission Meeting June 3, 1992 - Page 38 II Hempel: The speed limit changes, yes. Typically it probably would in that area somewhat. Stilt there'd be some concerns with turning movements into li the driveway and so forth. . Ahrens: How many trips a day do you think Mill Street has down at Excelsior? Where CR 17 ends up. And there's curb cuts all along that II street. There doesn't seem to be any problem. They get a Iot of traffic. You know what I'm talking about? II Krauss: They also have lots of speed traps along there. Hempel: 30 mph I believe too. 1 Ahrens: 30 mph, yeah. Okay. I don't have anything else. Is there a motion? I Conrad: Let me ask one more question because I'm confused about the trail on Audubon. On this parcel. Where is the trail on Audubon? 1 AI -Jaff: West off Audubon Road. Conrad: Okay, it's close to the tree. II Erhart: On the street? Al -Jaff: It's part of the public right -of -way. It's not on the property II and the landscaping is being installed on the property. Ahrens: Kind of like Lake Lucy Road. II Conrad: And is that the way we've been doing trails? That the city has been developing the trail? I Krauss: It's actually been a combination of either it's in the right -of- way or occasionally there's a separate easement provided. Within the downtown sidewalk system and Market Square here is not going to be in the I public right -of -way. It wasn't originally in the public right -of -way. It was in an easement, off street. It's really a matter of how wide the right -of -way is and can we accommodate it within it. In this case we can. II Conrad= And who's responsibility has it been to build the trail? Krauss: We have done it with public improvement projects. I Hempel: As we upgrade the section of street to urban standards, we would include the trail section at that time. In some cases however we have made II the developer actually go back. Or include it in his project to build it at this stage. Conrad: I have a recollection that we have done that. So we are doing it II two different ways. Hempel: I believe in this area because it's kind of a piece meal, we have 1 development down here. We have no development up here yet so you're going II Planning Commission Me�ing June 3, 1992 - Page 39 to have a stranded piece of trail out here with no connection inbetween. think that's where staff believes that the trail system will be built under an improvement project with the upgrade of Audubon Road. Erhart: At 50 feet it'd have to be on street right? Hempel: It would be within the street right -of -way, yes. ' Erhart: It would be on the inside of the curb. Hempel: It would be between the curb and the property line. • , Erhart: Oh it would be on the outside of the curb like a sidewalk then? Hempel: That's right. Typically it falls one foot inside of the property line on the right. One foot towards the street. Erhart: 50 feet gives you adequate? ' Hempel: Yes. Emmings: Mr. Grams has left and don't we have a standard condition that i� the year an approval is given to a plat, the applicant has to declare 11-_ a Democrat? Haven't we used that before? ' Ahrens: That was one of the conditions that was left out too. Emmings: We'll add that in. ' Ahrens: Steve, you're making a motion right? Emmings: Sure. I'll approve that the Planning Commission recommend the II City Council approve Wetland Alteration Permit #92 -6 with the conditions contained in the staff report. ' Conrad: I second. Emmings moved, Conrad seconded that the Planning Commission recommend approval of Wetland Alteration Permit *92 -6 with the following conditions:II 1. All wetland areas will be protected during construction by Type III erosion control. All erosion control shall be maintained in good condition until the disturbed areas are stabilized. 2. The wetland area remain undisturbed. , 3. The applicant shall receive a permit from the Watershed District. 4. The applicant shall meet all conditions of the Subdivision #92 -5 and II Rezoning 092 -3. All voted in favor and the motion carried. 1 Ahrens: Motion on the Rezoning. Planning Commission Meeting June 3, 1992 - Page 40 Conrad: I move that the Planning Commission approves Rezoning #92 -3, property from A -2 to RSF per the staff report's two conditions. Erhart: I'll second. Conrad moved, Erhart seconded that the Planning Commission recommend 1 approval of Rezoning *92-3 property from A -2 to RSF with the following conditions: 1. The applicant shall enter into a development contract containing all of the conditions of approval for this project and shall submit all required financial guarantees. The development contract shall be ' recorded against the property. 2. The applicant shall meet all conditions of Subdivision #92 -5 and Wetland Alteration Permit #92 -6. ' All voted in favor and the motion carried. 1 Ahrens: Do we have a motion on the Preliminary Plat? Emmings: I'll move that the Planning Commission recommends the City Council approve Subdivision #92 -5 as shown on the plans dated May 4, 1992 subject to the following conditions. I'll stop right here and emphasize that I'm striking the language granting a variance. It will be all the conditions in the staff report. With regard to condition number 6, that deals with the driveway for Lot 8 going out to Road E over Lot 7. I would move that that language be retained in here with the understanding that we feel that it may be appropriate for the character of the property to have a driveway of some kind going out to Audubon Road, but that it will be the burden of the applicant to get to the City Engineer and see what they can work out between now and the time of the City Council hearing. With regard to condition 11. Joan raised an issue that I didn't understand with regard to runoff. Making something more explicit about runoff going out to Audubon Road and I want that one changed to be more specific to take into account the comments that she made, which will be in the record. There will be an additional condition number 16, that between now and the time of ' the City Council hearing the applicant should work out with city staff whether or not Lots 10 and 14 in Block 2 are in fact buildable. And then ' an additional condition number 17 related to the language on page 6 of the staff report having to do with trees designated for preservation as was also pointed out by Joan. Erhart: Before someone seconds. I have a question. The last one on the tree conservation easement. That's what Steve? ' Emmings: That's on page 6. The second full paragraph be added as a condition that the trees designated for preservation shall be protected by snow fence. Erhart: Could I ask you to change 7(d) where it says conservation easements over all designated tree preservation areas to conservation easements over areas as designated by staff. Would you agree to that? 1 Planning Commission Meeting 1 June 3, 1992 - Page 41 Ahrens: What's the point of the change of language? Erhart: Because now you're requiring essentially to have a conservation easement over every colored area on this map. And Paul's already said tha he doesn't plan on doing that. Krauss: And I think that's mentioned in the staff report too. ' Emmings: Okay, that's what I meant. Erhart: Alright, then I'll second it. Emmings moved, Erhart seconded that the Planning Commission recommend approval of Subdivision *92-5 as shown on the plans dated May 4, 1992 and II subject to the following conditions: 1. All storm sewer drainage pipes should be designed for a 10 year frequency storm utilizing a rational method. Storm drainage retentionll pond, detention areas and outlet piping shall be designed for a 100 year frequency, 24 hour single event using the "SCS Method" establishell for use in Minnesota. The discharge rate shall not exceed the predeveloped runoff rate. Ponds shall also be designed to "NURP" standards. All storm retention ponds shall be constructed to NURP standards. '_J. utility and street improvements shall be constructed in accordance -h the current edition of "City's Standard Specifications and Detail' :gates ". Detailed street and utility construction plans and specifications shall be submitted for City Council approval. 3. The applicant shall apply and obtain permits from the Watershed , District, DNR and other appropriate regulatory agencies and comply with their conditions of approval. ' 4. Watermain systems shall be designed to ensure adequate fire flow for the site. Design calculations shall be submitted to the City Engineer to verify pipe size. ' 5. The applicant shall enter into a development contract with the city and provide the financial security to guarantee compliance with the terms of-the development contract. The final plat shall be contingent upon 11 the City Council authorizing and awarding a public improvement project for the extension of trunk sanitary sewer and water facilities to service the site. 6. All lots shall access from interior streets and not Audubon Road. Street grades shall not exceed the 7% maximum street grade per City II ordinance. A deceleration /acceleration lane shall be provided on Audubon Road. The center island shall be deleted from the southerly access street (Road E). The existing driveway to the site shall be relocated to access from the northerly loop street through Lot 7, Bloc 2. A cross access easement shall be convenyed to Lot 8, Block 2 with the understanding that the Planning Commission feels that it may be II appropriate for the character of the property to have a driveway of 1 Planning Commission Me ing June 3, 1992 - Page 42 some kind going out to Audubon Road, but that it will be the burden of the applicant to get to the City Engineer and see what they can work out between the Planning Commission and City Council meetings. 7. The final plat shall be amended to include expanding the 15 foot wide drainage and utility easements to 20 feet wide and extending the drainage easements through Lots 12 and 13, Block 1. The following ' easements shall be provided: a. Dedication of all street right -of -way. ' b. Conservation and drainage easements over all protected wetland and ponding areas. Provide access easements to allow the city to maintain all ponding areas. c. A 20 foot wide utility and drainage easement over all sewer, water and storm sewer lines located outside public right -of -way. d. Conservation easements over areas designated by staff. e. Standard drainage and utility easements along each lot line. ' f. Dedication of Outlot A to the City. 8. All necessary permits shall be obtained from the pipeline company for any grading or construction activity within the pipeline easement. 1 9. Fire hydrants should be spaced approximately 300 feet apart throughout the subdivision in accordance with the Fire Marshal's recommendations. 10. All areas disturbed during site grading shall be immediately restored ' with seed and disc - mulched or wood fiber blanket within two weeks of completing site grading unless MnDot's planting dates dictate otherwise. All areas disturbed with slopes of 3:1 or greater shall be ' restored with sod or seed and wood fiber blanket. 11. Until Phase II improvements are completed, interim sediment and /or ' retention ponds shall be constructed and maintained by the applicant to accommodate Phase I storm runoff. The applicant shall amend the grading plan to take into consider the runoff from the back yards for Phase I to accommodate future upgrading of Audubon Road (urban design). ' The grades on Lots 25 and 26, Block 3 shall be redesigned so the driveway grades do not exceed 1O%. The applicant shall supply earthwork calculations for both phases to the City Engineer for review. ' Erosion control fence along the westerly portion of the development (Phase II) adjacent to the wetlands shall be the City's Type III. Additional erosion control fence (Type I) shall be installed on Lots 7, 14 and 15, Block 3 and Lots 8, 10 and 11, Block 1 as check dams. 12. Outlot A shall be deeded to the city. In consideration for this, full trail fees will be credited. An 8 foot wide bituminous trail shall be constructed from proposed Road E to the rear of Lot 1, Block 1 and Lot 1, Block 3. 1. 1 Planning Commission Me ing June 3, 1992 - Page 43 13. The applicant shall convey to the City a temporary street easement for" the temporary cul -de -sac at the end of Road E. In addition, a sign shall be installed on the barricades stating that the street will be extended in the future. All street right -of -way for all plat phases tli be dedicated with Phase I platting. 14. The developer shall acquire the required utility construction permits II from the PCA and Minnesota Department of Health. 15. The applicant shall meet the conditions of the Rezoning 092 -3 and the Wetland Alteration Permit 092 -6. • 16. The applicant should work out with city staff to provide whether or not Lots 10 and 14 in Block 2 are in fact buildable between the Planning Commission and the City Council meeting. 17. Trees designated for preservation shall be protected by snow fence or ' other means acceptable to the City. All voted in favor and the motion carried. • PUBLIC HEARING: INTERIM USE PERMIT FOR EARTH WORK /MINING OF A GRAVEL PIT. LOCATED AT 100 II FLYING CLOUD. TOM ZWIERS. MOON VALLEY AGGREGATE. Public Present: ' Name Address Richard and Gayle Vogel 105 Pioneer Trail J.E. Brill, Jr., Esq. 100 Washington Avenue So., Mpls, 55401 Tom Zwiers 9390 26th Street, Lakeville Paul Krauss presented the staff report on this item and went through the II City Attorney's Findings of Facts. Erhart: In this case, how do you know when you excavated below the water II table? Krauss: Well, we looked at the possibility of putting in a single elevation. A not to exceed elevation but in the City Engineer's opinion, II the ground water elevation was fairly variable across the property. Erhart: A lot of changes. ' Hempel: Sample borings can be taken to determine what the water level is in a specific area there. It's kind of to document the water table. Watel tables do fluctuate with seasons so it is a difficult to pin point a certain elevation. You do receive modeled soils after just a couple feel underneath the surface in some areas in fact. 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IS;.- ' . ...Nagger ACILIGH CEDAR FRONT AND BRIO( Fil '' -, -4 s._-_- -rt.. _ --, z _.,...le__.,,:,....._-.) , - , .,...... - ,,....., .,-.-,...,;, , . ._„..-____------. ' " 1 " - ..... ' - ....,•••=1.0......■••••■ 2 Story/4 Bedroll , . - , - 1255/2337 SQ. Ft 3472 • FLOOR PLANS ON REVE1 SI ...- • -"--.' - 1;:: _ - 4 fr--- -- = ,, ,-,._T.t-....;.'',.. - .. ....,: - . . - -.),!..:, .-- -,, • ,,,,, ,....-.;.---- _ -__ . ,. . -_,..-_-.- y . - .:,i, ::..., -.?- ,; . , .-i-,.., - ,. ,41. .. ... ''-'. "..!-.. .4.,..... - - 7 - _ _, :..-;:■".:..- s ,/ ... • !....... ,. . .. , . , -.-'- ;•• - • f ‘'.. -- ,,,. .,- _:.,,,_ - 1.4 --„:..--- ' r ' Ulf - . _ ,. • ••,- -- - : - ..„,..-----t"-,•-"•,S..i....;,.. if -- . 1 • . /X - ..... • .., .--- - :: :„-- ' -'-'.,... ..-'.."_:.:." . • -..: # ig-ItNig _t-74-7:4-_,.--• „:„AtosmouveRrormeamoliman : , .„, ...} ,.. ■ -'.-- - P • . __ . , —77. _. ;' ;I' . 1 '.F1 ; I .• . • _ ,.-•=, - - • -:=1 , it i on -1- . 24% .,..: _ .: iii: lit: iii, 1 . LI '-I I I liti ilir" 1: - -- ' • .7..1m......MB -- •• ,-- •.- 11 11:- ..... - V . • ., F - )DZ _ ••■•• • - .i - L , - — . . .. - __ - :, -- _ - ,•--"S1-7.-=-7 -- .. r e:=. - -= , -- . -- ,:k.r. -.--,111111111.1.•- '''''' '; _.-. . '?"'- BEATON B • ROUGH CELDAR FRONT AND ERTOC INCLUDED aETANDON C . s • , '.k.....R. ..4 P. -- ... . . N .. ..:,/•474 ." 4 5?;2!:- • '1.- 44 Jt_ -.i.-":::,441r1P-: 4 1 l' Ir '- :: . ..,--, - ...ti,it - '' -. .-- .:------ --: .• f .- • -.1....L..Lt_t_u . , ,„,,... t.j.........„. 7,, . r r.. .' . .. . _.. .. ft - Attt. -E - =' -------- ..7. 7 ---,- - el - . - ' !-1..mt mit ..-:•-_- - ... • lif- A...E",,'-, .1 • .li---• •', r [ -_---- Mg: - =-7-= -.' . .,- * __■-i __ R_ ,s7-?•: ,,,,Ir - L a- liSit- . ... - -..------. 41 • P'• ,........ ........-- ...—,_ ..... -- 1 .... •,, - . ---.06.- • • . -•;• . Ar I • 4.k.... ....,...dek I 1 .,„,„ 4, • ..- 7. v . ELEVATION 1 ROUGH MAR more mr, saa( mum . EWAIK:x4 c sousH CEDAR FRONT INCLUDED A al Marketed by - DICK AND JOAN SCHULLER • Bus. (612) 890-0304 it TIFF nua, Nous,NG Qi —' OPPORTUNITY REAITT IM Immo■ #1' WINFIELD FLOOR PLAN: 2 Story /4 Bedrooms 1255/2337 SQ. FT. 1 1 r K 1 10' 1 - MORNING r • • - KITCHEN 9x12 SUNKEN 1 - i • 0 •. 11x14 FAMILY ROOM opi LAUNDRY BATH 8 J 17x15 Fa 1 I r -- ► ��,� 1 I U Ili it i 1 A DINING ROOM. LMNG ROOM 1 GARAGE 12 x12 15x13 22x21 FOYER 1 a 1 1 MAIN LEVEL PLAN .._...— -...._ I 1 ->.< I ED [3 ° M ASTER BATH . BEDROOM 1 � 0 BATH 0 12x13 L OOE I ,.......: 1 —.1" .. E.,...2.,,.. MASTER ° I BEDROOM — — — 12 x18 °-i BEDROOM 1 12x12 BEDROOM 12 X10 r ....- r -_, ...-- UPPER LEVEL PLAN 1 • 1 • 195 N 1 g I OIo -- - - - - -; me IIIMMI■Ma 41•1111 41.1■ 1 amm. mmm. (=Imo amm. \ amm ammino mom. amin. amm ! i MOD 41•1111•0 7 1111"1... . Oaf.l 2I,6 c 0 . *d os i 0 ' 4 ) I - fliii/ I bo m , 15,250 tr) . 1 � 1 3 1. " 7----- " - 1 145 1 1 1 • 3 1 \../ L ....c 10% tots 1 I 1 • - • \\ La. ` \ .<a ,30 es. • \, ‘e\" I22,OOOs.f.fr I 1 60 g 15D I a 1