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1e-1 Woods at Longacres 6th AddCITYOF City Center Drive, PO Box. I 47 £hanhassen, Minnesota 55317 Phone 612.937.1900 General Fax 612.937.5739 'ngineering Fax 612.93Z9152 '~blic Safety Fax 612.934.2524 Y/eb www. ci. chanhassen, mn. us MEMORANDUM TO: Scott Botcher, City Manager FROM: Cynthia Kirchoff, Planner I Dave Hempel, Assistant City Engineer DATE: July 21, 1999 SUB J: Final Plat Approval for The Woods at Longacres 6th Addition PROPOSAL Lundgren Bros. Construction is requesting final plat approval for the 6th Addition of'The Woods at Longacres. This addition includes 20 single family lots. The proposal completes the development of Harrison Hill Trail and Harrison Hill Court, which runs north of Longacres Drive.- BACKGROUND On November 8, 1993, the City Council gave preliminary PUD apProval to what was then called the Song development. There were 31 conditions of approval. This site was formally Outlot D in The Woods at Longacres 4th Addition. FINAL PLAT REQUEST Lundgren Bros. Construction is requesting final plat approval for 20 single-family lots and the completion of Harrison Hill Trail and Harrison Hill Court. COMPLIANCE TABLE Gross Area Average Average Wetland Lot No. Block Sq. Ft Lot Width Lot Depth Setback No. 1 1 18,471 145' 149' No 2* 26,985 124' 228' No 3* 23,290 105' 199' No 4* 21,914 110' 200' No 5* 22,507 102' 223' No 6* 19,418 69' 244' No 7* 23,817 100' 239' No 8 30,530 223' 153' No ~e City of Chanhassen. A growing communi(y with dean lakes, quality schools, a charming downtown, thriving businesses, and beautiful parks. A ~reat place to live, Work, and play. Scott Botcher The Woods at Longacres 6th Addition July 21, 1999 Page 2 9 46,753 117' 326' - No 10 182,524 506' 588' Yes 11 35,865 146' 606' Yes 12 115,435 148' 875' Yes 13 22,498 125' 171' ' No 14 70,868 341' 634' Yes 15 322,252 70' 499' · Yes 16 41,227 128' 254' Yes 17 18,516 120' 176' No 18 24,150 163' 219' No 19 23,189 108' 256' No 20 25,173 135' 222' - No *25 foot front yard setback ~ermitted. The PUD ordinance requires the homes to maintain 30 foot front and rear yard setbacks. However, in an effort to preserve more trees in the rear yard, staff is recommending that Lots 2-7, Block 1 maintain a minimum 25 foot front yard setback. The PUD also allows flexible side yard setbacks as long as the devekJper can demonstrate a minimum 20 foot separation between the homes. Specifically; a minimum of 6 feet must be maintained for garages and 9 feet for living areas~in side yards. Landscaping The plan indicates that a landscaped center island will be located in both the - Harrison Hill Trail and Harrison Hill Court cul-de-sacs. The islands will be - maintained by the homeowner's association. Each lot will be required to have: two trees planted in the front yard setback. In terms of the overall landscape p(an for The Woods development, plantings have been installed along Longacres Ddve as part of a previous addition. Tree Preservation Tree preservation easements will be located on all 20 lots. In terms of restrictions, the easements will be consistent with those established in the previous addition. Staff would like the developer to make every attempt to preserve the large trees located near the edge of the easement but not located within it. These trees generally range from 20 to 40 inches in diameter and will greatly enhance the lot if preserved. Scott Botcher The Woods at Longacres 6th Addition July 21, 1999 Page 3 Wetlands The applicant has provided the City with plans showing an existing wetland basin in this addition of the project. This wetland has been identified as an ag-urban wetland. Lots 10-12, and 14-16 will be required to maintain a 40 foot wetland setback from the 10 foot wetland buffer. The developer will be required to install a stake locating the wetland buffer edge. Drainage A storm sewer drainage system is proposed to convey runoff into the existing drainage system in Longacres Drive. The existing system was designed to accommodate this future phase of development. Stormwater will be conveyed into a regional stormwater pond on the south side of Longacres Drive for pretreatment prior to discharging in downstream wetlands. A drain tile system is also being incorporated to address sump pump discharge from the home sites. The drain tile system is being provided adjacent to those lots which do not abut a wetland or stormwater pond. Detailed storm drainage calculations were submitted for staff review and approval. Staff has reviewed the calculations and finds them acceptable. No additional downstream ponding improvements are required in conjunction with this development. The plans do propose a backyard drainage system on Lots 2 and 3 to convey backyard runoff. The homes adjacent to this storm drainage system must have the lowest floor opening a minimum of one foot above the emergency overflow to prevent potential flooding. An as-built grading plan will be required at time of Certificate of Occupancy for Lots 2 and 3 to ensure the grading is properly completed in accordance with the grading plan. Grading The majority of the site grading has already been completed in conjunction with the Woods at Longacres 4th Addition. This site is the most difficult one to develop. It is heavily wooded, bordered by wetlands, and has severe topographic grade changes. The use of retaining walls, reduced right-of-way widths and front yard setbacks have been applied in an effort to minimize tree loss and reduce grading. Although, given the characteristics of the site, there are many lots on the west side of Harrison Hills Trail that have a 15-20 foot elevation difference from Scott Botcher Thc Woods at Longacres 6th Addition July 21, 1999 Page 4 lot line to lot line. Given this fact, the home type on these lots will be very unique and will have to incorporate retaining walls to minimize grading and tree loss. Each one of the lots are proposed to be custom graded, therefore, at time of building permit application, detailed grading, drainage, erosion control, and tree removal plans will be required for staff review and approval. Tree conservation easements will also be required throughout the plat. The site has already been rough graded and only minor grading is anticipated in conjunction with utility extension throughout the site. Tree protection fencing is proposed at the grading limits of the site. As the home sites develop, excess fill material will be generated from basement excavation. This will result in having to haul the material off site and/or used on the lots on Harrison Hills Court. Utilities Detailed utility and street construction plans and specifications have been - submitted for staff review and City Council approval. Staff has reviewed the plans and finds them in general accordance with the City's specifications, however, minor revisions, i.e. added fire hydrants, catch basins, were required thus the plans were returned to the developer's engineer for revision. A final set of plans are anticipated back by Monday, July 26, 1999. Copies of the engineering drawings are available for review in the Engineering Department. The developer will be required to enter into a development contract/PUD agreement and supply the City with a financial security to guarantee installation of the public improvements and conditions of final plat approval. Water service to this development will be extended from Longacres Drive and Highover Trail to provide a looped water systems through this development and the Highover development which should minimize water quality complaints. Streets The project proposes on extending Harrison Hills Trail north of Longacres Drive. The street will terminate into a cul-de-sac approximately 950 feet north of Longacres Drive. A secondary access to the site was not developed due to topographic constraints and environmental reasons. The City has compromised the street right-of-way width (50 foot wide versus 60 foot wide) in this development in an effort to reduce grading and save trees. The applicant will be Scott Botcher The Woods at Longacres 6th Addition July 21, 1999 Page 5 installing the standard urban street section, 31 feet wide, face-to-face, in accordance with City standards. The street grade proposed on Harrison Hills Trail is 8% which exceeds the City's standards. However, this development is a PUD and was given variances up to 10% in the street grade in order to preserve trees and limit site grading. Staff has reviewed the street construction plans and finds them in general accordance with the City's specifications and construction standards. Landscaped median islands are proposed in both cul-de-sacs. The homeowners association will be responsible for maintenance of the landscaped islands. Decorative street lights will be installed by NSP after the streets have been constructed. The street lights will be similar to the existing street lights throughout the Meadows/Woods at Longacres subdivisions. REVIEW CONDITIONS OF APPROVAL 1. Reconfigure Lot 36, Block 4 to increase lot width at setback to 90 feet. · This condition was met in a previous phase. Developer is responsible for demonstrating a minimum 20 foot separation is provided for side yards as each building permit is requested. Interior side yard setbacks of 6 feet for garages and 9 feet for living areas are permitted. Front yard setbacks may be reduced down to 20 feet where the developer can demonstrate that improved tree preservation would result, except along the collector street where 30 foot setbacks are required. Side yard setback of 10 feet is required for all free standing accessory structures. These must comply with all other rear and front yard setbacks. This condition has been modified as follows: Developer is responsible for demonstrating a minimum 20 foot separation is provided for side yards as each building permit is requested. Interior side yard setbacks of 6 feet for garages and 9 feet for living areas are permitted. Front yard setbacks may be reduced down to 25 feet for Lots 2 -7, Block 1. Side yard setback of 10 feet is required for all free standing accessory structures. These must comply with all other rear and front yard setbacks. Scott Botcher The Woods at Longacres 6th Addition July 21, 1999 Page 6 o Each lot must be provided with two trees when they do not contain at least this number of trees 2½" or larger in size at the time of development. These trees may be placed in the lot in question or clustered as appropriate based upon an approved landscaping plan. However, none of these trees shall be credited to buffering requirements along Galpin nor placed upon commonly held outlots." Trees to be selected from approved city list of over stow trees, minimum 2 ½" diameter at time of installation. Seed and sod required for all disturbed areas. Letter of credit or cash deposit required at time of building permit to guarantee installation. Provide detailed landscaping plans for internal plantings and the Galpin Boulevard landscape berm for city approval. This condition has been modified as follows: Each lot must be provided with two trees when they do not contain at least this number of trees 2 ½" or larger in size at the time of development. These trees may be placed in the lot in question or clustered as appropriate based upon an approved landscaping plan. Trees to be selected from approved city list of over story. trees, . minimum 2 ½" diameter at time of installation. Seed and sod required for all disturbed areas. Letter of credit or cash deposit required at time of building permit to guarantee installation. Provide copies of subdivision covenants and home owner association documents for review and approval. The covenants should eStablish acceptable architectural criteria consistent with the PUD. Association documents should clearly establish maintenance and tax responsibility for all commonly held facilities, landscaping and parcels. · This condition is still applicable. Outlot D to be merged with appropriate parcels in Dolejsi PUD at time of final plat. This condition is not applicable with this phase. Provide details of the proposed private recreational facilities. Since city park plans are predicated upon the construction of this facility to accommodate some local needs, financial guarantees ensuring its Scott Botcher The Woods at Longacres 6th Addition July 21, 1999 Page 7 construction, must be posted. The association park will be built concurrent with street "A" as listed on the preliminary plat. This condition was met in a previous phase. Provide final clarifications regarding wetland mitigation relative to the basin found on the "A" street alignment. Provide plans illustrating how wetland buffer areas are to have native wetland vegetation established. This installation shall be completed with site work and subject to sufficient financial guarantees. Concurrent with final approval, the applicant shall determine what wetland buffer monumentation is to be employed. This monumentation shall be installed with initial site development and is t° be covered by sufficient financial guarantees. Wetland buffer dimensions and setbacks are established in the applicant's compliance table dated August 10, 1993. Restoration plans to mitigate wetland damage caused by the sanitary sewer crossing between A and E streets should be provided and incorporated into the development contract. Provide protective conservation easements over all wetlands identified by staff and required wetland buffers. The applicant must demonstrate that wetland mitigation meets 1:1 ratio. At this time we are short 0.10 acres of wetland due to the applicant's failure to identify Wetland I as identified by staff. The applicant is responsible for providing wetland mitigation for impacts stemming from the ultimate improvement of Galpin and trail construction adjacent to the site. The City will assume responsibility for obtaining the necessary permits for this activity. This condition has been met. 8. Tree Preservation/Landscaping: Detailed plans with the final plat for landscaping the cul-de-sac islands be developed for approval. A cul-de-sac planting plan stamped Received July 8, 1999 has been submitted. Detailed plans for the Galpin Blvd. landscaped buffer (and berming where feasible). This feature must be significant enough to buffer direct views of the home sites from the roadway for lots devoid of preserved trees in appropriate locations that is mentioned Scott Botcher The Woods at Longacres 6th Addition July 21, 1999 Page 8 elsewhere in this report. Alternatively, if the applicant wishes to use this requirement to locate trees in more appropriately designed clusters around the plat, additional trees must be added to meet the numerical standard plus provide vegetation elsewhere in the berm area and commonly held areas. This condition was met in a previous phase. Co Tree plantings to meet minimum size standards in City Code and be selected from the official tree list that is being prepared by the Tree Board. · This condition is still applicable and is modified as follows: Tree plantings to meet minimum size standards in City Code and. be selected from the landscaping ordinance. d. Landscaping to be covered by satisfactory financial guarantees. This condition is still applicable. All tree conservation areas to be protected by snow fence or otherwise satisfactorily marked and all erosion control to be in place with both being inspected and approved by the city before undertaking any grading of construction activity on the site. Expand the tree conservation areas as recommended by staff. · This condition has been modified: All tree conservation areas to be protected by snow fence or otherwise satisfactorily marked and all erosion control to be in place with both being inspected and approved by the city before undertaking any grading or construction activity on the site. The applicant shall work with staff on developing tree conservation areas prior to site grading. Tree removal limits will be established at the time of building permit for each lot. Removal limits will be set at distance of twenty (20) feet around the proposed building pad as shown on the grading and drainage plan, provided that trees may be removed within approved grading limits and for placement of utilities. Staff may allow a revised house pad location if grading and tree removal will be reduced. Scott Botcher The Woods at Longacres 6th Addition July 21, 1999 Page 9 f. Planting of boulevard trees on Street A per city specifications. · This condition was met in a previous phase. 9. Park and Trails: Parks The private/association park be approved with the addition of an open field with a minimum size of 180 feet by 180 feet with a maximum 4% slope is added to the park layout. This open field is to be in addition to and not in lieu of existing proposed amenities. Furthermore, if the private/association park is ever abandoned, it shall be transferred to the city for public park purposes. Such a provision must be drafted into association documents. · This condition was met in a previous phase. Full park fees shall be paid at the rate in force upon building permit application. · This condition is still applicable. Co If in the future there is a dissolution or any type of breakdown in this neighborhood association, that the city will be deeded this park as a park and not subdivided into lots. This condition is not applicable with this phase. Trails ao It is intended that the Galpin trail be constructed in the street right- of-way except within 200 feet of street intersections. In these areas, a trail easement up to 20' in width is required. Furthermore, that this easement shall be included in the grading plan for the project with a suitable trail bed being prepared. This trail bed may meander within the easement alignment at the discretion of the applicant, but the eventual alignment must be conducive to future trail construction and is subject to approval as a part of the grading Scott Botcher The Woods at Longacres 6th Addition July 21, 1999 Page 10 plan review. Planting of trees shall be restricted to areas west of the trail bench. · This condition was met in a previous phase. The applicant shall dedicate lands to accommodate trail construction along the southern boundary of the Johnson/Dolejsi/Tumer preliminary plat as depicted on Attachment #4. The applicant shall map and construct a trail paralleling this wetland. This construction is to be completed per city specifications and at the time of adjoining street construction. Final alignment of this trail shall be staked by the developer and approved by the Park and Recreation Director and City Engineer. In recognition for the dedication of this trail corridor, and the construction of said trail, it is recommended that the applicant receive full trail fee credit at the time of building permit application for both the Song property and Johnson/Dolej si/Turner applications. [Note: This condition will require amendments to the conditions of approval associated With the preliminary plat for the Johnson/Dolejsi/Turner properties.] Fees associated with the amendment of the PUD for the Johnson/Dolejsi/Turner property are to be waived. This trail shall include a connection to the street plan as indicated between Lots 16 & 17, Block 2, or a similar suitable location in the near vicinity. · This condition was met in a previous phase. c. Full park and trail fees shall be paid per city ordinance. This condition was deleted. Duplicate of condition #9a. 10. Demonstrate that each lot can accommodate at least a 60' x 40' home site, 12' x 12' deck and 30' rear yard without intruding into any wetland buffer on the final plat. · This condition is still applicable. Scott Botcher The Woods at Longacres 6th Addition July 21, 1999 Page 11 11. The final plat shall be amended to include revised street right-of-ways on Streets B, D and G to a 60-foot wide right-of-way with Streets H and I to be 50 feet wide with the standard street section. The applicant was granted a 25' front yard setback. Staffalso agreed to allow for the construction of retaining walls in the ROW of streets H and I to save trees so long as they are maintained by the Association This condition shall be modified as follows: The developer shall work with City staff in determining where retaining walls should be constructed along Harrison Hill Trail and Harrison Hill Court to save trees and minimize grading. The retaining walls may encroach the right-of-way if no other feasible means are available; however, the City shall not be responsible for maintenance, repairs or replacement of the retaining walls. 12. Appropriate drainage and utility easements shall be conveyed with the final plat for all utilities located outside the public right-of-ways including drainage basins. The minimum width should be 20 feet. The plans should also be revised to include an improved surface over the east edge of Outlot F to provide the City access to the sediment basin and Lake Harrison for maintenance vehicles. Access may be covered with sod over a compacted subgrade acceptable to City staff. This condition has been met. 13. The applicant shall receive and comply with all pertinent agency permits, i.e. Watershed District, Health Department, MPCA, Carver County Highway Department, DNR, Army Corps of Engineers. · This condition is still applicable. 14. Storm sewer calculations for a 10-year storm event along with pond storage calculations for storage of a 100-year storm event, 24-hour intensity, should be submitted to the City Engineer for review and approval prior to final platting. · This condition has been met. Scott Botcher The Woods at Longacres 6th Addition July 21, 1999 Page 12 15. At a minimum, deceleration lanes shall be constructed on southbound Galpin Boulevard when Street A and/or Street E is constructed. The applicant's engineer, Carver County Highway Department, and staff shall review warrants for a bypass lane on northbound Galpin Boulevard at the intersection of A Street. This condition is not applicable with this phase. 16. Fire hydrants shall be placed approximately 300 feet apart throughout the subdivision in accordance with the Fire Marshal's recommendation. This condition has been met. 17. All disturbed areas shall be immediately restored with seed and disc- mulched or provided with a wOod-fiber blanket within two weeks after site grading or before Nov. 15 each construction season. Areas where street and/or utility construction will occur throughout the year are excepted as is construction on individual home sites when building permits have been issued and erosion control is in place. The City may grant'an extension to the restoration date if weather conditions permit. All disturbed areas shall be restored in accordance with the City's Best Management Practices Handbook. · This condition is still applicable. 18. The developer shall construct all utility and. street improvements in accordance with the City's latest edition of Standard Specifications and Detail Plates and prepare final construction plans and specifications for City staff review and formal City Council approval in conjunction with final platting. If the developer installs trunk sewer and water improvements which is considered anything over an 8-inch pipe diameter, a credit will be applied towards the Upper Bluff Creek sanitary sewer and watermain trunk improvements which will be levied against the parcel. This credit amount will be determined as the cost difference between the standard lateral pipe size (8-inch diameter) and the proposed trunk improvement. · This condition has been met. Scott Botcher The Woods at Longacres 6th Addition July 21, 1999 Page 13 19. 20. 21. 22. 23. 24. 25. As a condition of final plat approval, the applicant will be required to enter into a development contract with the City and provide the necessary financial security to guarantee compliance with the conditions of approval of final platting. This condition is still applicable. No lots shall take driveway access from Galpin Boulevard (County Road 117). The Song homestead shall gain access via a direct connection to "B" Street. This condition is not applicable with this phase. Street names submitted with the final plat.are subject to staff approval. This condition has been met. The site grades adjacent to Galpin Boulevard shall be revised to be compatible with the future upgrade of Galpin BouleVard and future trail construction. In addition, no berming or drainage facilities will be allowed to encroach upon the Galpin Boulevard right-of-way. This condition is not applicable with this phase. Wetland basin G shall be relocated and mitigated to be Contained within the development to avoid its being impacted by street and trail construction. · This condition has been met. A private driveway easement should be conveyed for access to Lot 9, Block 1 between Lots 4 and 5, Block 1 off orB Street. This condition is not applicable with this phase. The street grades shall be adjusted to conform to City ordinance which is between 0.50% and 7% except on H and E streets. A street shall be constructed to a 9 ton design. · This condition has been met. Scott Botcher The Woods at Longacres 6th Addition July 21, 1999 Page 14 26. 27. 28. 29. 30. 31. The final plat shall be contingent upon the applicant demonstrating that a street will be extended to serve the parcel which lies northwesterly of this site. The street extension may be through either H Street or another Street location within the Johnson/Dolejsi/Turner property immediately to the west. · This condition is not applicable with this phase. The proposed landscape median area at the intersection of Galpin Boulevard and A and E streets, and the proposed cul-de-sac islands, are to be allowed subject to incorporation of modifications requested by staff and to meet State Aid requirements. · This condition is not applicable with this phase. Enter into a PUD contract with the City. This condition is being deleted because it is a duplication of condition # 19. Street F to be constructed up to the south property line. It shall be provided with a temporary turnaround and a signed barricade indicating "This street to be extended in the future." Notice of the extension is to be placed in the chain-of-title of all lots in the vicinity. · This condition is not applicable with this phase. The common private drive serving Lots 33, 34, and 35, Block 4 shall be paved to a width of 20 feet, be constructed to a 7 ton design and be equipped with a turnaround acceptable to the Fire Marshal. · This condition is not applicable with this phase. Decorative street lighting be installed along the collector Street A. · This condition is not applicable with this phase. Scott Botcher The Woods at Longacres 6th Addition July 21, 1999 Page 15 RECOMMENDATION Staff recommends the City Council adopt the following motion: "The City Council approves the final plat for The Woods at Longacres 6th Addition (#93-3 PUD) for 20 lots as shown on the plans stamped Received July 8, 1999, and subject to the following conditions: Developer is responsible for demonstrating a minimum 20 foot separation is provided for side yards as each building permit is requested. Interior side yard setbacks of 6 feet for garages and 9 feet for living areas are permitted. Front yard setbacks may be reduced down to 25 feet for Lots 2- 7, Block 1. Side yard setback of 10 feet is required for all free standing accessory structures. All lots must comply with all other rear and front yard setbacks. Each lot must be provided with two trees when they do not contain at least this number of trees 2½" or larger in size at the time of development. These trees may be placed in the lot in question or clustered as appropriate based upon an approved landscaping plan. Trees to be selected from approved city list of over story trees, minimum 2 ½" diameter at time of installation. Seed and sod required for all disturbed areas. Letter of credit or cash deposit required at time of building permit to guarantee installation. 3. Tree Preservation/Landscaping: ao Tree plantings to meet minimum size standards in City Code and be selected from the official tree list.. b. Landscaping to be covered by satisfactory financial guarantees. Co All tree conservation areas to be protected by snow fence or otherwise satisfactorily marked and all erosion control to be in place with both being inspected and approved by the city before undertaking any grading or construction activity on the site. The applicant shall work with staff on developing tree conservation areas prior to site grading. Tree removal limits will be established at the time of building permit for each lot. Removal limits will be set at distance of twenty (20) feet around the proposed building pad Scott Botcher The Woods at Longacres 6th Addition July 21, 1999 Page 16 as shown on the grading and drainage plan, provided that trees may be removed within approved grading limits and for placement of utilities. Staff may allow a revised house pad location if grading and tree removal will be reduced. 4. Full park and trail fees shall be paid per city ordinance. Demonstrate that each lot can accommodate at least a 60' x 40' home site, 12' x 12' deck and 30' rear yard without intruding into any wetland buffer on the final plat. Appropriate drainage and utility easements shall be conveyed with the final plat for all utilities, wetlands and ponding areas located outside the public right-of-ways. The easement widths shall be wide enough to take into consideration access for maintenance purposes. o The applicant shall receive and comply with all pertinent agency permits, i.e. Watershed District, Health Department, MPCA, Carver County Highway Department, DNR, Army Corps of Engineers. All disturbed areas shall be immediately restored with seed and disc- mulched or provided with a wood-fiber blanket within two weeks after site grading or before Nov. 15 each construction season. Areas where street and/or utility construction will occur throughout the year are excepted as is construction on individual home sites when building permits have been issued and erosion control is in place. The City may grant an extension to the restoration date if weather conditions permit. All disturbed areas shall be restored in accordance with the City's Best Management Practices Handbook. o The developer shall construct all utility and street improvements in accordance with the City's 1997 edition of Standard Specifications and Detail Plates. The applicant shall be entitled to a credit against future hookup charges against the property for the construction cost difference of installing the 16-inch waterline in Longacres Drive versus an 8-inch waterline. 10. As a condition of final plat approval, the applicant will be required to enter into a PUD/development contract with the City and provide the necessary Scott Botcher The Woods at Longacres 6th Addition July 21, 1999 Page 17 financial security to guarantee compliance with the conditions of approval of final platting. 11. The developer and/or contractor shall report to the City Engineer the location of any drain tiles found during construction. The City Engineer will determine whether or not to abandon or redirect the tile to the storm sewer system. 12. A 10 foot clear zone must be maintained around fire hydrants so as to avoid injury to fire fighters, i.e. NSP transformers, street lights, cable television and telephone boxes and landscape plantings 13. A native vegetative buffer strip 10 feet in width shall be maintained around the ag-urban wetland on the Site. This will limit grading to within 10 feet of the wetland. The grading plan shall be modified accordingly. 14. The landscaped median island shall be maintained by the homeowners association through the means of the declaration of covenants. Should the median not be well maintained or becomes a public safety hazard, the city reserves the right to remove the landscaping and/or entire median. The city shall not be liable for damage to the landscaping or irrigation system as a result of snow plowing operations. 15. The applicant shall meet wetland fill and wetland mitigation conditions as stated in Corps of Engineers, Section 404 permit 94-02389-SW-GAE. Mitigation work shall be implemented prior to or concurrent with wetland fill activity in future phases of the project. 16. Type III erosion control shall be installed and maintained around all wetlands during construction until the site has been revegetated. 17. The developer shall work with City staff in determining where retaining walls should be constructed along Harrison Hill Trail and Harrison Hill Court to save trees and minimize grading. The retaining walls may encroach the right-of-way if no other feasible means are available; however, the City shall not be responsible for maintenance, repairs or replacement of the retaining walls. Scott Botcher The Woods at Longacres 6th Addition July 21, 1999 Page 18 18. 19. 20. 21. 22. 23. 24. 25. Detailed grading, drainage, erosion control and tree preservation plans shall be submitted to the City for review and approval at time of building permit application for all lots. Parking shall be prohibited in the cul-de-sacs on Harrison Hill Trail and Harrison Hill Court. The developer shall maintain a 40 foot wetland setback on Lots 10-12, 14- 16, Block 1. Provide copies of subdivision covenants and home owner association documents for review and approval. The covenants should establish acceptable architectural criteria consistent with the PUD. Association documents should clearly establish maintenance and tax responsibility for all commonly held facilities, landscaping and parcels. Wetland buffer areas shall be surveyed and staked in accordance with the City's wetland ordinance. The City will provide wetland buffer edge signs and charge the applicant $20 per sign. The applicant shall verify the location of these signs with the City's Water Resources Coordinator and shall install these signs before the utilities are accepted. If in the future there is a dissolution or any type of breakdown in this neighborhood association, that the city will be deeded this park a,s a park and not subdivided into lots. No lots shall have direct access onto Longacres Drive. The lowest floor opening of the dwellings on Lots 2 and 3 shall be a minimum of one foot above the emergency overflow (904.3). The as-built grading plans shall be submitted to the City upon completion of the homes prior to issuance ora Certificate of Occupancy to verify the lots have been graded in accordance with the approved grading plan." ATTACHMENT 1. Final plat dated July 8, 1999 2. Tree Preservation mZ0 ~m0 ~ ITl ITl 0 0 0 Z / / / / Z I'rl 0 355.00 SO0° 16'46"W 0