Final Plat Approval Letter 3-21-05
CITY OF
CHANHASSEN
7700 Market Boulevard
PO Box 147
Chanhassen, MN 55317
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Phone: 952.227.1100
Fax 952.227.1110
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Phone: 952.227.1400
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Phone 952.227.1130
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Web Site
\'II'II'I.ci. chanhassen. mn. us
March 21, 2005
Mr. Nathan Franzen
Plowshares Development, LLC
1851 Lake Drive West, Suite 550
Chanhassen, MN 55317
Re:
Final Plat Approval - Pinehurst
Planning Case #04-36
Dear Nathan:
On March 14,2005, the Chanhassen City Council approved the following:
"Final Plat for Pinehurst Addition creating 431ots, 2 outlots and associated right-of-
way for public streets (plans prepared by Westwood Professional Services, Inc.)
subject to the following conditions:
1. Setbacks on Lots 9, 10, 11, 14, 15 and 16, Block 1shall be a minimum of 20
feet from the back of the private street.
2. Outlots A and B shall be donated to the City.
3. Wetland buffer widths of 16.5 feet to 20.0 feet shall be maintained around all
wetlands on-site.
4. All structures shall maintain a 40-foot setback from wetland buffer edges.
5. Wetland buffer areas shall be preserved, surveyed and staked in accordance
with the City's wetland ordinance. The applicant shall install wetland buffer
edge signs, under the direction of City staff, before construction begins and
shall pay the City $20 per sign. Erosion control blanket shall be installed on
all slopes greater than or equal to 3:1. All exposed soil areas shall have
temporary erosion protection or permanent cover year round, according to the
following table of slopes and time frames:
Time
(maximum time an area can remain unvegetated
Type of Slope when area is not actively being worked)
Steeper than 3: 1 7 Days
10:1 to 3:1 14 Days
Flatter than 10: 1 21 Days
The City of Chanhassen · A growing community with clean lakes, quality schools, a charming downtown, thriving businesses, winding trails, and beautiful parks. A gæat place to live, work, and play.
Mr. Nathan Franzen
March 21, 2005
Pinehurst Final Plat
Page 2
These areas include constructed storm water management pond side slopes, any exposed soil
areas with a positive slope to a storm water conveyance system, such as a curb and gutter
system, storm sewer inlet temporary or permanent drainage ditch or other man made systems
that discharge to a surface water.
6. Daily scraping and sweeping of public streets shall be completed any time construction site
soil, mud, silt or rock is tracked or washed onto paved surface or street that would allow
tracked materials or residuals of that material to enter the storm water conveyance system.
7. Construction site access points shall be minimized to controlled access points with rock
entrance and exit pads installed and maintained throughout construction.
8. Based on the proposed developed area of 23.68 acres, the estimated total SWMP fee, due
payable to the City at the time of final plat recording is $75,533.87.
9. The applicant shall apply for and obtain permits from the appropriate regulatory agencies
(e.g., Riley-Purgatory-Bluff-Creek Watershed District, Minnesota Pollution Control Agency
(NPDES Phase II Construction Permit), Minnesota Department of Natural Resources (for
dewatering)) and comply with their conditions of approval.
10. A minimum of two overstory trees shall be required in the front yard of each lot. The
landscape plan shall include a minimum of 260 trees. A final revised plan must be submitted
to the City for approval.
11. The developer shall be responsible for installing all landscape materials proposed in rear and
side yard areas.
12. Tree preservation fence shall be installed at the edge of the grading limits prior to any
construction.
13. Tree preservation on site shall be according to tree preservation plans dated 02/21/05. Any
trees removed in excess of proposed tree preservation plans will be replaced at a ratio of 2: 1
diameter inches.
14. The applicant will be required to meet the existing site runoff rates for lO-year and 100-year,
24-hour storm events. The proposed ponds must be designed to National Urban Runoff
Program (NURP) standards. In addition, the proposed ponding must be sized to
accommodate the drainage generated from the property to the north, as shown in the City's
Smface Water Management Plan (SWMP).
15. The stOlID sewer must be designed for a lO-year, 24-hour storm event. Submit storm sewer
sizing calcs and drainage map prior to final plat for staff review and approval.
16. Staff recommends that Type II silt fence, which is a heavy duty fence, be used adjacent to the
existing wetland, existing creek area, and around the proposed pond. In addition, tree
preservation fencing must be installed at the limits of tree removal. Erosion control blankets
Mr. Nathan Franzen
March 21, 2005
Pinehurst Final Plat
Page 3
are recommended for all of the steep 3: 1 slopes with an elevation change of eight feet or
more.
17. On the grading plan: Maximum allowable side slope is 3:1; revise in the rear yard of Lot 3,
Block 2.
18. Any retaining wall over four feet in height must be designed by a registered civil engineer
and a permit from the City building department must be obtained. In addition, encroachment
agreements will be required for any retaining wall within a public easement.
19. The sanitary sewer and water hookup charges along with the Lake Ann Interceptor charge
will be applicable for each of the new lots. The 2005 trunk hookup charge is $1,458.00 per
unit for sanitary sewer and $2,955.00 per unit for watermain. The total 2005 Lake Ann
Interceptor charge is $2,270 per unit and the SAC fee is $1,525.00 per unit. All of these
charges are based on the number of SAC units assigned by the Metropolitan Council.
Sanitary sewer and water-main hookup fees may be specially assessed against the parcel at
the time of building permit issuance.
20. All disturbed areas, as a result of construction, must be seeded and mulched or sodded
immediately after grading to minimize erosion.
21. The applicant should be aware that any off-site grading will require an easement from the
appropriate property owner.
22. If importing or exporting material for development of the site is necessary, the applicant will
be required to supply the City with detailed haul routes.
23. All of the utility improvements are required to be constructed in accordance with the City's
latest edition of Standard Specifications and Detail Plates. The applicant is also required to
enter into a development contract with the City and supply the necessary financial security in
the form of a letter of credit or cash escrow to guarantee installation of the improvements and
the conditions of final plat approval.
24. Lot 27 is approved with the following conditions:
a. A drainage and utility easement shall be dedicated over the entire width of the swale on
the northwest side of the buildable area on Lot 27, Block 1. No structures shall be
allowed within this drainage and utility easement, with the exception of the retaining wall
shown on the approved grading plan.
b. To ensure proper drainage, a survey shall be required for Lot 27, Block 1 upon
completion of the landscaping. The survey shall be submitted to the City and reviewed
by staff to ensure consistency between final grades and the approved grading plan. If
discrepancies exist, any inconsistent areas shall be re-graded to match the approved
grading plan. Additionally, any property owners should anticipate flowing and/or
Mr. Nathan Franzen
March 21, 2005
Pinehurst Final Plat
Page 4
standing water within the swale on the northwest side ofthe property (Lot 27, Block 1).
This may preclude mowing of the swale during times of above average precipitation.
25. A 30-foot wide private easement, cross-access and maintenance agreement must also be
submitted for the private street.
26. Full park fees shall be collected at the rate in force at the time of final plat.
27. The private streets must be built to a 7-ton design and enclosed within a 30-foot private easement.
The developer will be required to submit inspection/testing reports from an independent geotechnical
firm certifying that the street is built to a 7 -ton design."
Two signed mylar copies of the final plat shall be submitted to our office for signatures along
with the signed development contract, the required easements (private street and trail) and all
required financial security and fees. Deeds conveying Outlots A and B to the City must be
submitted for recording. Two 1"=200' scale mylar reductions of the final plat and one 1"=200'
scale mylar reductions of the final plat with just street names and lot and block numbers shall be
submitted. In addition, a digital copy in .dxf format and a digital copy in .tif format (pdf
compatible) of the final plat shall be submitted.
The City will submit all the necessary documents to Carver County for recording of the
subdivision. If you have any questions or need additional information, please contact me at
(952) 227-1131.
é,~i?SJ~r,) ".~ser, ~"
K~ )J.~
Robert Generous, AICP
Senior Planner
c: Matt Saam, Assistant City Engineer
Steve Torell, Building Official
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