Approval Letter 5-12-06
CITY OF
CHANHASSEN
7700 Market Boulevard
PO Box 147
Chanhassen, MN 55317
Administration
Phone: 952.227.1100
Fax: 952.227.1110
Building Inspections
Phone: 952.227.1180
Fax: 952.227.1190
Engineering
Phone: 952.227.1160
Fax: 952.227.1170
Finance
Phone: 952.227.1140
Fax: 952.227.1110
Park & Recreation
Phone: 952.227.1120
Fax: 952.227.1110
Recreation Center
2310 Coulter Boulevard
Phone: 952.227.1400
Fax: 952.227.1404
Planning &
Natural Resources
Phone: 952.227.1130
Fax: 952.227.1110
Public Works
1591 Park Road
Phone: 952.227.1300
Fax: 952.227.1310
Senior Center
Phone: 952.227.1125
Fax: 952.227.1110
Web Site
WIIW.ci .chanhassen. mn .us
May 12,2006
Dan Cook
The Pemtom Land Company
7697 Anagram Drive
Eden Prairie, MN 55345
Re:
The Preserve - Planning Case 06-14
Dear Mr. Cook:
On Monday, May 8, 2006 the Chanhassen City Council approved the rezoning of
the land within the plat for "The Preserve" from Agricultural Estate District, A2, to
Planned Unit Development-Residential, PUD-R; approval of a conditional use
permit to permit development within the Bluff Creek Overlay District and alterations
within the flood plain; and approval of the preliminary plat for "The Preserve"
creating 155 lots, 15 outlots and right-of-way for public streets, plans prepared by
Westwood Professional Services, Inc., dated March 17, 2006, subject to the
following conditions:
1. The drainage and utility easement over the northern portion of Lift Station #24
must be vacated and filed upon final approval of the final plat.
2. The "Existing Conditions" plan must be revised to show the drainage and
utility easement that was granted to the City and contain trunk sanitary sewer
and watermain.
3. Prior to City Council consideration of the final plat, the applicant must
provide documentation indicating that the proposed right-of-way for Lyman
Boulevard meets Carver County's requirement.
4. The grading plan must identify the existing and proposed 100-year floodplain.
5. Due to the anticipated timing of the final plat with respect to the timing of
formal approvals from FEMA, the proposed lots that are within the current
floodplain may be preliminary platted subject to FEMA approval of the
LOMR.
6. Any grading within the floodplain will require a Conditional Use Permit.
7. Catch basins on each side of all public streets must be no more than 300 feet
apart.
8. The proposed outlet for Wetland A must lie along the edge of the wetland.
The City ot Chanhassen · A growing community with clean lakes, quality schools, a charming downtown, thriving businesses, winding trails, and beautiful parks. A great place to live, work, and play.
Mr. Dan Cook
May 12, 2006
Page 2 of6
9. The storm sewer from Pond 1 must outlet to the wetland north of Pond 2 in order to maintain
hydrology to the wetland.
10. Storm sewer within Street J must be rerouted through the side yards within Block 3 and
outlet to Pond 2.
11. Hydraulic calculations must be submitted with the final plat submittals.
12. The legend on the final grading plan must identify the lowest floor elevation.
13. All buildings must be demolished before the second phase.
14. The final grading plan must show the top and bottom of wall elevations.
15. Any retaining wall four feet high or taller requires a building permit and must be designed by
an Engineer registered in the State of Minnesota.
16. The developer must work with staff to find the preferred sanitary sewer alignment west of
Block 3 prior to City Council consideration of the final plat.
17. The plan must be revised to show an 18-inch diameter watermain on the south side of Lyman
Boulevard to the east property line.
18. The developer's engineer must submit a separate cost estimate for the watermain oversizing
along Lyman Boulevard with the final plat submittals.
19. To the maximum extent practicable, the trail along the east side of Bluff Creek must be
within close proximity of the manholes for the existing trunk sanitary sewer.
20. The lowest floor elevation of each unit must be shown on the utility plan.
21. The existing well and septic system must be properly removed and abandoned during site
grading and utility installation.
22. The developer must pay $15,776 in cash with the final plat for the pro-rated cost for the
preparation of the 2005 MUSA AUAR.
23. The outstanding assessments - $310,999.03 for 2005 MUSA roads and water, and
$162,976.08 for Highway 101/Lyman Boulevard/Highway 312/Highway 212 must be paid
with the final plat or reassessed to the lots and outlots for future development.
24. Each new lot is subject to the sanitary sewer and water hookup charges. These fees are
collected with the building permit and are based on the rates in effect at the time of building
permit application. The party applying for the building permit is responsible for payment of
these fees.
Mr. Dan Cook
May 12,2006
Page 3 of 6
25. The City will construct Bluff Creek Boulevard Improvements to serve the development in
conjunction with public improvement project No. 06-05. The property within the plat will be
specially assessed for this project.
26. The development is subject to the arterial collector fee, which must be paid in cash with the
final plat.
27. Streets F and K must extend past Lot 6, Block 13 and Lot 1, Block 17, respectively to
provide adequate space for a vehicle to back out of the driveway and turn into the street.
28. Curbs on public streets will be high-back; curbs on private streets will be surmountable.
29. The sidewalk along the north side of Street H between Street A and Street I, and along the
north side of Street E must be eliminated.
30. Sidewalks adjacent to private streets and within privately owned outlots can be used by the
public.
31. The applicant will work with staff to discuss eliminating Lots 1 and 2, Block 11, and Lots 1
through 5, Block 1.
32. The applicant shall revise the plan design to ensure adequate hydrology for Wetland 4 in the
post-development condition.
33. If the applicant wishes to pursue an exemption for impact to Wetland A, the applicant shall
furnish information to substantiate the exemption request. The applicant is advised that, even
if impacts would be exempt from WCA, they may not be exempt from the requirements of
the Army Corps of Engineers. .
34. A wetland buffer with a minimum width of 16.5 feet shall be maintained around all wetlands
and wetland mitigation areas. 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. All structures shall maintain a setback of at least 40 feet from the wetland buffer edge.
35. All structures shall maintain a 50-foot setback from the ordinary high water level of Bluff
Creek. All structures shall maintain a minimum 40-foot setback from the primary corridor.
No alterations shall occur within the primary corridor or within the first 20 feet of the setback
from the primary corridor. The 50-foot setback, primary corridor boundary, 40-foot structure
setback and 20-foot grading setback shall be shown on the plans. .
36. The applicant shall provide details for the proposed trail crossing of Bluff Creek. Minnesota
Department of Natural Resources (DNR) permits shall be obtained for all creek crossings. In
addition, the trail alignment shall be revised to cross Bluff Creek in the same location as the
sanitary sewer crossing. Immediately south of the creek crossing, the trail intersection shall
be redesigned to avoid impact to the trees.
Mr. Dan Cook
May 12,2006
Page 4 of 6
37. The plans shall be revised to provide a lower EOF for Wetland A and a path to the west for
excess water that will not threaten proposed structures.
38. The EOF path for Pond 1 shall be revised to provide a more direct EOF route from Pond 1 to
Wetland 4.
39. The proposed sanitary sewer and storm sewer outlet in the vicinity of Pond 2 shall be revised
to ensure: 1. The runoff from the outlet will not compromise the integrity of the sanitary
sewer; and 2. The sanitary sewer is not located below the normal water level (NWL) of Pond
2.
40. The outfall from Pond 3 shall not outlet upslope of the proposed trail.
41. The applicant shall clarify the avoidance of the drainage way to be preserved during the
construction of Pond 4 and, if possible, redesign the pond to provide additional storage and
treatment in lieu of avoiding the drainage way.
42. Pond 5 shall be constructed prior to the construction of all the areas that drain to it.
43. Drainage and utility easements (minimum 20 feet in width) shall be provided over all
existing wetlands, wetland mitigation areas, buffer areas used as PVC and storm water ponds.
44. 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:
Type of Slope
Steeper than 3:1
10:1 t03:1
Flatter than 10: 1
Time
7 days
14 days
21 days
(Maximum time an area can
remain open when the area
is not actively being worked.)
These areas include constructed storm water management pond side slopes, and 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 natural or man
made systems that discharge to a surface water.
45. Street cleaning of soil tracked onto public streets shall include daily street scraping and street
sweeping as-needed.
46. The applicant shall be proactive in addressing potential run-on problems in the vicinity of the
extreme southeast comer of the property. This would potentially involve vertically tracking
equipment up and down the graded faces of the slope to increase roughness and prevent rilling.
Similar practices shall be used behind the homes along the central part of Outlot A.
47. At this time, the estimated total SWMP fee, due payable to the City at the time of final plat
recording, is $242,760.
Mr. Dan Cook
May 12,2006
Page 5 of 6
48. 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 IT Construction Site Permit), Minnesota Department of Natural Resources (for
dewatering), Army Corps of Engineers, Minnesota Department of Transportation, Minnesota
Department of Health) and comply with their conditions of approval.
49. The applicant shall demonstrate that the outlet pipe installation and elevation will not impact
the wetland.
50. If recommended by the Park and Recreation Commission, park fees shall be paid as per City
ordinance at the rate of final platting.
51. Tree protection fencing shall be installed prior to construction around all areas designated for
preservation and/or at the edge of proposed grading limits.
52. A walk-through inspection of the silt/tree preservation fence shall be required prior to
construction.
53. No burning permits shall be issued for tree removal. All trees removed on site shall be
chipped and used on site or hauled off.
54. A turf plan shall be submitted to the City indicating the location of sod and seeding areas.
55. Buffer plantings shall be installed along the east property line in the rear yards of Lots 7
through 16, Block 3 and Lots 1 through 5, Block 10.
56. Applicant shall remove Emerald Queen Norway maple from the planting schedule. The
applicant shall substitute another species with approval from the City.
57. A conservation easement shall be recorded over Outlot A.
58. The developer shall work with staff to develop and install appropriate markers at lot lines to
demarcate the primary zone.
59. The applicant shall submit a plan for the revegetation of any areas of grading within Outlot
A. The plan shall incorporate native plants and be consistent with the City's Bluff Creek
Natural Resources Management Plan Appendix C. Special attention should be paid to areas
with steep slopes (greater than 3:1). Staff recommends that the Hill Prairie planting list be
used for the restoration.
60. The applicant shall provide all design, engineering, construction and testing services required
of the "Bluff Creek Trail." All construction documents shall be delivered to the Park and
Recreation Director and City Engineer for approval prior to the initiation of each phase of
construction. The trail shall be 10 feet in width, surfaced with bituminous material and
constructed to meet all city specifications. The applicant shall be reimbursed for the actual
cost of construction materials for the Bluff Creek Trail. This reimbursement payment shall be
Mr. Dan Cook
May 12, 2006
Page 6 of 6
made upon completion and acceptance of the trail and receipt of an invoice documenting the
actual costs for the construction materials utilized in its construction.
61. Outlots A, B, Land N be conveyed to the city as public property by warranty deed.
62. The following items are to be addressed at final plat:
. Attention to garage door facades including n percent of doors with windows
. Color palate ( 4 minimum)
. Private streets and sidewalks,
. Percentage of future boilable area,
. Setbacks on comer lots
. Turnarounds at the end of private streets.
Attached are the requirements for final plat. Please feel free to call me at 952-227-1139 if you
have any questions.
Sincerely,
[I k
\~Cd~ 71(;U1W1C1~
Kathryn R. Aanenson, AICP
Community Development Director
Enc.
c: Gayle & Lois Degler
g:\plan\2006 planning cases\06-14 the preserve\premliminary approvalltr.doc
CITY OF CHANHASSEN
ITEMS REQUIRED FOR FINAL PLAT CONSIDERATION
The following items are required to be submitted a minimum of three (3) weeks prior to City
Council meeting and payment of a $250.00 final plat review fee:
1. Submit three (3) sets of full size 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 Public 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 (8W' x 11"), and a digital copy
in .tif format.
8. Digital copy of the legal description of the property in a .doc or .pdf compatible format.
9. Lot tabulations
10. 1" = 200' scale paper or mylar reduction of the final plat with just street names and Lot
and Block numbers.
11. Legal description of the property/properties to be platted.
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 02-03-06
c:\documents and settings\kimm\local settings\temporary internet files\olkfb\final plat submittal.doc