Approval Letter - PPlat Vac ♦ T Y 0
CITY OF ClIANIIASSEN
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q N H ASS Chanhassen is a Community for Life-Providing for Today and Planning for Tomorrow
May 10, 2022
Mr. Tim Erhart
Black Cherry Development, LLC
9611 Meadowlark Lane
Chanhassen, MN 55317
Re: Erhart Farm Amended Preliminary Plat, Planning Case 2021-12A
Dear Mr. Erhart:
This letter is to notify you that on May 9,2022,the Chanhassen City Council approved:
A. Vacation of Permanent Easement for Public Roadway,Drainage and Utility purposes dated
September 2,2009 and recorded with the Carver County Recorder's Office as Doc.No. A509111 on
October 13, 2009;
B. The ordinance rezoning the development from Agricultural Estate District(A-2)to Single-Family
Residential District(RSF)(Blocks 1 and 2); and
C. Preliminary plat with a variance from tree replacement requirements subject to the following
conditions:
Building
1. A building permit must be obtained before beginning any construction.
2. Building plans must provide sufficient information to verify that proposed building meets all
requirements of the Minnesota State Building Code;additional comments or requirements may be
required after plan review.
3. Retaining walls(if present)more than four feet high must be designed by a professional engineer
and a building permit must be obtained prior to construction.
4. A final grading plan and soils report must be submitted to the Inspections Division before
building permits will be issued.
5. Each lot must be provided with a separate sewer and water service.
Engineering
1. Easements identified within the platted area must be vacated prior to or concurrently with the
recording of the final plat.
PH 952.227.1100 • www.ci.chanhassen.mn.us • FX 952.227.1110
7700 MARKET BOULEVARD •PO BOX 147 .CHANHASSEN •MINNESOTA 55317
Mr. Tim Erhart
Erhart Farm Amended Preliminary Plat
May 10, 2022
Page 2
2. The driveway to the existing residence proposed to remain(Lot 1,Block 1, Butternut Ridge)must
be surfaced with bituminous,concrete or other hard surface material.
3. The developer and their design team must work with staff to update the public street layout and
design, including sidewalk and trail locations.
4. Public street sections stubbed-out for future extension must wholly be encumbered by public
right-of-way and updated on the final plat.
5. All wetland spoils associated with Interim Use Permit#2021-03 must be removed from areas
where public improvements are proposed. A geotechnical engineering firm shall be on-site during
grading operations to ensure the City's Standard Specifications and Detail Plates are adhered to
along with any Minnesota Building Code requirements.
6. The developer's engineer shall ensure that the maximum driveway grades shown on the plan are
calculated such that a 10-foot landing is provided where the driveway connects to the street and a
5-to 10-foot landing is provided at the garage.
7. Any wells located on the property to be developed must be properly abandoned.
8. The developer must work with staff in the final construction plans and details of the proposed lift
station along with its location.
9. A geotechnical engineer's recommendation on proper back fill and compaction for the force main
extended through the abandoned lift station location must be provided.
10. The developer will be reimbursed for the removal of the temporary cul-de-sac and extension of
the street and sidewalk in this area in the amount of$33,750.00.
11. If"Eagle Ridge Way" is to facilitate parking on one side of the road,the width will be required to
be updated on the plans to a minimum of 26 feet wide from face-of-curb to face-of-curb. Face-of-
curb is considered 12 inches from back-of-curb with the surmountable curb design.
12. All locations where the extension of public streets may occur shall have barricades and"Future
Street Extension" signs erected.
13. All comments and conditions associated with Carver County's"Development/Access Review"
memo dated January 10, 2022 must be addressed or met, as applicable, prior to the City
considering approval of the final plat.
14. The final plat shall be updated to ensure drainage and utility easements(DUE)around the pond
and infiltration basin encompass an area that is a minimum of one foot higher than the 100-year
high water level(HWL).
15. The applicant must provide DUE that facilitate a contiguous connection between the newly
dedicated DUE or right-of-way with Erhart Farms and the existing Lot 1,Block 1, Butternut
Ridge.
Mr. Tim Erhart
Erhart Farm Amended Preliminary Plat
May 10, 2022
Page 3
16. The newly proposed public lift station shall be located on an outlot dedicated to the City
concurrently with the recording of the final plat.
17. The developer will be required to extend the 12"trunk water main and the City will reimburse the
developer$41,971.05 for the cost of oversizing this extension along with its appurtenances.
18. The developer will be reimbursed 29% of the cost for the construction of the lift station.
19. The developer will be reimbursed for the cost of construction of the lift station in the amount of
$48,725.04 as this was escrowed by the Foxwood development for the construction of the
permanent lift station.
20. The developer will be reimbursed for the removal of the temporary lift station in the amount of
$10,000.00.
21. Issuance of a Notice to Proceed(NTP) for the development shall not be granted until the public
utilities being extended from the Foxwood development have been accepted.
22. A copy of all required permits from the appropriate regulatory agencies shall be provided to the
City which shall include but is not limited to the Minnesota Department of Health, Metropolitan
Council Environmental Services, Riley Purgatory Bluff Creek Watershed District(RPBCWD),
and the Minnesota Pollution Control Agency prior to issuance of a NTP.
23. The applicant shall enter into a Development Contract with the City and pay all applicable fees
and securities prior to recording of final plat.
24. Tree preservation fencing shall be installed at the edge of clearing limits and around existing trees
to be saved prior to any construction activities and remain installed until completion.
25. A preconstruction meeting shall be held by the developer and their contractor(s)with the City and
its representatives prior to grading operations.
26. A geotechnical engineer shall be on site during grading operations. If groundwater is
encountered during grading, grades shall be adjusted to maintain a 3-foot separation from the
bottom floor elevation and adhering to the recommendations of the soil engineer on site. Changes
to grades shall be submitted to the City for review and approval.
27. Haul routes for the import or export of soil,construction material,construction equipment or
construction debris,or any other purpose, shall be provided prior to commencement of grading
operations.
28. The applicant shall provide an updated SWPPP that shall meet all requirements set forth in the
applicant's NPDES Construction Permit, such as locations of concrete wash-outs,stockpile areas,
estimated quantities of erosion control BMPs,training credentials of SWPPP installer, prior to
commencement of grading operations.
Mr. Tim Erhart
Erhart Farm Amended Preliminary Plat
May 10, 2022
Page 4
29. The applicant shall supply a dewatering plan to the Water Resources Engineer for review and
approval prior to dewatering activities on site.
30. A landscaping security of$100,000.00 was required upon issuance of the Grading DC, dated
October 25, 2021, associated with the development. Upon receipt of the updated engineer's
estimate, if 7%of the cost of public improvements is more, or less,than the provided landscaping
security,the security will be adjusted accordingly.
31. An erosion control security for 110%of the cost of erosion and sediment controls,or$22,445.07,
was required upon issuance of the Grading DC dated October 25,2021,associated with the
development. The updated engineer's estimate indicates that an additional $11,390.93 will be
required and must be provided prior to or concurrently with the recording of the final plat.
32. All comments and conditions set forth by the RPBCWD shall be addressed by the applicant prior
to grading operations.
Environmental Resources
1. Tree preservation fencing shall be installed around existing trees to be saved prior to any construction
activities and remain installed until completion.
2. No trees shall be located within the right-of-way or sight triangles.
3. Lots 4 thru 9 shall have only one tree required in the front yard.
4. Lots 4 thru 10 shall have a Conservation Easement covering the existing wooded areas in the rear
yards.
5. Lots 1 thru 3 and 11 thru 13 shall have a Conservation Easement over the reforestation area.
6. All potted trees will have animal protection installed at planting time.
7. All Conservation Easement areas shall have signage posted at the property corners on each lot.
8. Required tree plantings may only be located on Lots 1 thna 19 and Outlots A and C and limited areas
in Outlot B.
9. A revised landscape plan with a complete Plant Schedule listing quantities,plant names, sizes and
survey symbol and showing the locations of all 314 trees must be submitted to the City for approval
prior to a NTP.
10. The applicant shall submit a plan showing the proposed Conservation Easement for City approval
and shall be recorded concurrently prior to the NTP.
11. At the time of final landscape inspection,any transplant trees found to have less than 70%canopy or
are dead will be required to be replaced with 2.5"nursery stock.
Mr. Tim Erhart
Erhart Farm Amended Preliminary Plat
May 10, 2022
Page 5
12. Totals for tree stock sizes include 146-2.5"B&B, 110 potted nursery stock,31 on-site transplants,
and 27 previously installed transplants.
13. The applicant shall submit a tentatively scheduled planting date as well as a maintenance plan that
includes regular weekly watering prior to the NTP.
Fire
1. No landscaping(trees, shrubs, plants)to be installed within three feet in all directions around each
hydrant.
2. Roads 20-26 feet wide will need to have No Parking Fire Lane signs on both sides of the road.
3. Eagle Ridge Way shall be posted No Parking on one side of the road.
4. Elevation drops and grading for roads will need to meet fire access road maximum of 10%.
5. No combustible construction(wood)can begin until fire apparatus access roads are approved
(temporary is ok)and hydrants are installed and active/usable.Foundation work is acceptable.
6. May not block emergency access or fire hydrants during construction at any time.
Parks and Recreation
1. Park fees for Phase I of Erhart Farm of$110,200.00 shall be paid prior to recording the final plat.
2. Outlot B shall be donated or dedicated to the City of Chanhassen to be part of permanent open space
around the wetland complexes.
3. The developer shall be responsible for construction of the 10-foot, asphalt trail along the western
portion of Eagle Ridge Road continuing south from Outlot D,Foxwood,and connect to W.96th
Street.The developer/applicant shall provide design,engineering,construction and testing required
of the Eagle Ridge Road trail.All construction documents, including material costs,shall be
delivered to the Park and Recreation Director and City Engineer for approval prior to the initiation of
construction.The trail shall be 10 feet wide, surfaced with asphalt and constructed to meet all City
specifications. The applicant shall be reimbursed by the City for the cost of the aggregate base and
trail surfacing.This reimbursement payment shall be made upon completion and acceptance of the
trail and receipt of an invoice documenting the actual costs for the construction materials noted.
Labor and installation,design,engineering and testing services are not reimbursable expenses.
4. A permanent trail,and drainage and utility easement encompassing the"5-foot pervious nature trail"
along the rear lot lines of Lots 5 thru 19 shall be dedicated.
Planning
1. The developer shall comply with the requirements of Carver County regarding access and right-of-
way to County highways.
Mr. Tim Erhart
Erhart Farm Amended Preliminary Plat
May 10, 2022
Page 6
Water Resources
1. The applicant shall clarify if the 5-foot pervious nature trail is proposed to impact any parts of
Wetland 3 near Lot 5, Block 1 prior to issuance of a NTP.
2. The applicant shall submit information regarding re-seeding any areas where grading is proposed
within the wetland buffer, specifically in Lots 1 through 3, Block 1 and Lots 11 and 12, Block 2
prior to issuance of a NTP.
3. The applicant shall provide a copy of the approved RPBCWD permit before any construction can
start.
4. The applicant shall enter into an Operations&Maintenance Plan for any proposed privately-
owned stormwater facilities to be recorded with the final plat.
5. A Wetland Alteration Permit may be necessary if the proposed wetland impacts are not deemed
exempt according to Sec. 20-417 of the City Code.
6. The applicant shall clarify if the 5-foot pervious nature trail is proposed to impact any parts of
Wetland 3 near Lot 5, Block 1 prior to issuance of a NTP.
7. The applicant must verify the location of the wooden bridge structure between Wetland 2 and
Wetland 3 near Lot 5,Block 1 and add it to the existing conditions survey. If the structure is to
remain in place the applicant shall supply bridge ratings, as-builts and an approved waterbody
crossing permit from RPBCWD.
8. The applicant shall submit information regarding reseeding any areas where grading is proposed
within the wetland buffer, specifically in Lots 1 thru 3, Block 1 and Lots 11 and 12, Block 2 prior
to issuance of a NTP.
9. The applicant will need to update MIDS and resubmit the models in their native form to confirm
the City's water quality rule is met prior to issuance of a NTP.
10. The applicant shall enter into an O&M Agreement for any proposed privately owned stormwater
facilities to be recorded with the final plat.
11. The developer shall work with staff to improve the public stormwater facility's access route prior
to issuance of a NTP.
12. The developer shall work with staff to improve the public stormwater facility's operation and
layout to the maximum extent possible within the given limitations of the site and RPBCWD
regulations prior to issuance of a NTP.
13. The developer must work with staff to improve the design of the public stormwater infrastructure
including pipe slopes prior to issuance of a NTP.
Revised final plat documents, along with a resolution to the reimbursement items, must be submitted to
the City prior to the City Council meeting in which you wish to have your final plat approved. If you
Mr. Tim Erhart
Erhart Farm Amended Preliminary Plat
May 10, 2022
Page 7
submit the revised plans by May 27,2022, staff can schedule you on the June 13,2022 City Council
agenda;otherwise, staff will determine the City Council agenda when the revised documents are
submitted. Conditions of the preliminary plat approval must be addressed for final plat approval. Enclosed
is the list of items required for submittal for final plat approval. The rezoning of the residential lots shall
not be official until approval of the final plat and execution of the project development contract.
Should you have any questions,please contact me at(952)227-1131 or by email at
benerous@ci.chanhassen.mn.us.
Sincerely,.---
n a^,
Robert Generous,AICP
Senior Planner
Enclosure
ec: Kate Aanenson,Community Development Director
Erik Henricksen, Project Engineer
Laurie Hokkanen,City Manager
Jerry Ruegemer,Parks& Recreation Director
Jill Sinclair,Environmental Resource Specialist
Joe Seidl, Water Resources Coordinator
Eric Tessman,Building Official
Dan Blake, The Pemtom Land Company
Mark Rausch,Alliant Engineering
g:\plan\2021 planning cases\21-12a 775 96th street w.,erhart farm.pp and fp'approv al letter for amended prelim.docx
ITEMS REQUIRED FOR FINAL PLAT CONSIDERATION
The following items are required to be submitted a minimum of 35 days prior to
City Council meeting and payment of a $250.00 final plat review fee:
1. Submit three (3) sets of full size, 50 scale construction plans and
specifications for staff review and redline.
• Utility plans shall show both plan view and profiles of all utilities
(sanitary sewer, water and storm sewer lines). The plan view must
show all drainage and utility easements.
• Grading and drainage plans shall show dwelling type and elevations,
wetlands and wetland buffer areas, stormwater pond NWL and HWL,
EOF and catch basin and storm manhole numbers.
• The construction plans and specifications shall be in accordance to the
City's latest edition of Standard Specifications & Detail Plates.
• The plans shall include traffic signage and street light placement.
2. Drainage calculations for water quantity and quality ponding with maps
showing drainage areas for pre-and post-development conditions and
contributing areas to catch basins.
3. Hydraulic calculations and drainage map for the storm sewer design.
4. Tree Preservation Easements (if applicable).
5. Trail Easements (if applicable).
6. Engineer's Cost Estimate of Improvements:
a. Sanitary sewer system.
b. Water system.
c. Storm sewer drainage system including cleaning and
maintenance.
d. Streets, sidewalk and trails.
e. Erosion control.
f. Site restoration (seeding, sodding, etc.).
g. Site grading
h. Street lights & signs
i. Engineering, surveying & inspection
j. Landscaping
7. Five (5) sets (folded) of final plat, one (1) set of reductions (8'/" x 11"), and
a digital copy in .tif format.
8. Digital copy of the legal description of the property in a .doc format.
9. Lot tabulations.
Failure to provide any of the above items by the required deadline will
result in delaying consideration of final plat before the City Council.
Updated 11-29-06
g:\eng\forms\final plat submittal.doc