PC SUM 2013 08 20
CHANHASSEN PLANNING COMMISSION
REGULAR MEETING
SUMMARY MINUTES
AUGUST 20, 2013
Chairman Aller called the meeting to order at 7:00 p.m.
MEMBERS PRESENT:
Andrew Aller, Mark Undestad, Kim Tennyson, Lisa Hokkanen, Maryam
Yusuf, Stephen Withrow, and Steven Weick
STAFF PRESENT:
Kate Aanenson, Community Development Director; Bob Generous, Senior Planner;
and Alyson Fauske, Assistant City Engineer
PUBLIC HEARING:
GONYEA VARIANCE, PLANNING CASE 2013-17: REQUEST FOR VARIANCE FROM
SECTION 20-1122(2) OF THE CHANHASSEN CITY CODE TO CONSTRUCT A DRIVEWAY
ON PROPERTY ZONED SINGLE FAMILY RESIDENTIAL (RSF) AND LOCATED AT 7441
DOGWOOD ROAD (LOT 7, SUNSET HILL ON LAKE MINNEWASHTA). APPLICANT:
GONYEA HOMES, INC.
Bob Generous presented the staff report on this item. Chairman Aller asked if the final plans had been
received by staff. Commissioner Withrow asked for clarification on the location of the retaining wall in
relation to the driveway. The applicant, Bill Coffman with Gonyea Homes stated he concurred with the
conditions in the staff report. Chairman Aller opened the public hearing. No one spoke and the public
hearing was closed.
Undestad moved, Weick seconded that the Chanhassen Board of Appeals and Adjustments
approves a 3.5 percent variance to the driveway grade to permit a 13.5 percent driveway grade
subject to the following conditions and adoption of the attached Findings of Fact and Decision:
1.The proposed driveway must have the first 10 feet adjacent to Dogwood Road at a shallow
grade for entry onto the roadway.
2.The proposed driveway design must also keep a shallow grade at the bottom of the driveway
near the garage to prevent drainage from flowing towards the garage or home.
3.The driveway grade must not be steeper than 13.5 percent at any point.
4.Limit tree removal to only those necessary to accomplish the construction of the home and
driveway.
5.Show all trees to be removed or at risk of damage during construction including those on
adjoining properties.
6.Limit grading to only those areas necessary to accomplish the construction of the home and
driveway while maintaining drainage patterns which will not create erosive conditions or
redirect drainage onto neighboring properties.
7.No grading within the bluff impact zone.
Planning Commission Summary – August 20, 2013
8.Provide mitigation measures to prevent increased erosive conditions in the bluff and gully
areas.
9.The site plan must otherwise be compliant with MN Rules 6120.3300 and Chapter 20, Article
VII of Chanhassen City Code.
10.The grading must be revised so that water will flow away from the proposed structure.
11.The grading must be revised so as not to exceed 3:1 slopes.
12.The grading must be revised to create a swale so that water will not flow over the top of the
wall.
13.The applicant must obtain permission from the owners of the adjoining properties to do any
work on their land.
All voted in favor and the motion carried unanimously with a vote of 7 to 0.
PUBLIC HEARING:
LAKE ST. JOE’S COVE, PLANNING CASE 2013-18: REQUEST FOR PRELIMINARY PLAT
REVIEW OF 4.04 ACRES OF PROPERTY ZONED SINGLE FAMILY RESIDENTIAL (RSF)
LOCATED EAST OF CHANHASSEN CITY LIMITS, AND SOUTH OF THE CIMMARON
SUBDIVISION BETWEEN KINGS ROAD AND MILL CREEK LAND. APPLICANT: STS
PROPERTY, LLC. OWNER: JERRY & KRISTIN KORTGARD.
Bob Generous presented the staff report on this item. Chairman Aller asked about park requirements.
Commissioner Yusuf asked if staff was comfortable with the erosion control plan. The applicant, Steve
Kroiss explained that he and his engineer, Dan Schmidt were available to answer questions. Chairman
Aller opened the public hearing. Rick Berland asked for clarification on the location of this development.
Yusuf moved, Tennyson seconded that the Chanhassen Planning Commission recommends the City
the preliminary plat subject to the following conditions and adoption of the
Council approve
attached Findings of Fact and Recommendation:
Building Official:
1. Provide a 1:200 “clean” plat drawing.
2. Demolition permits are required for the removal of any existing structures.
3. Submit proposed street-name(s) to Building Official and Fire Marshal for approval.
4. Buildings may be required to be designed by an architect and/or engineer as determined by
the Building Official.
5. A final grading plan and soils report must be submitted to the Inspections Division before
permits can be issued.
6. Retaining walls over four feet high require a permit and must be designed by a professional
engineer.
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Planning Commission Summary – August 20, 2013
7. Each lot must be provided with separate sewer and water services.
8. The applicant and/or their agent shall meet with the Inspections Division as early as possible
to discuss plan review and permit procedures.
Engineering:
9.Access to the properties in Victoria must be maintained.
10.The plat delineates the 10-foot easement at the front and back of the lots, and a 5-foot
easement at the sides of the lots, but the plat must call them out as a “drainage and utility
easement.”
11.Plat must dedicate driveway access easement on Lot 4, Block 3 for access to the property in
Victoria.
12.The easement between Block 1, Lot 1 and Block 1, Lot 2 must provide enough room to
excavate the pipe for maintenance at a 1:1.5 slope.
13.The easement at the northeast corner of Block 3, Lot 1 must provide enough room to
excavate the pipe for maintenance at a 1:1.5 slope.
14.The plat document must be amended to include Outlot B, which is shown in the plans.
15.The survey of the existing property shows contour lines in the Cimmaron development north
of Lake St. Joe’s Cove, but it must also show all existing buildings and driveways 100 feet
beyond the property boundary.
16.The grading plans must show the benchmark elevation used for the survey.
17.In the relatively flat areas, such as the swale that directs water to Catch Basin 6, the grading
plan must show spot elevations and flow arrows to indicate the direction of the water.
18.The 15-inch storm sewer pipe from CBMH1 to the existing structure shall be constructed
with a minimum 0.70 % slope.
19.The existing storm sewer manhole on Outlot A, Cimmaron Addition must be replaced to
include a 3-foot sump.
20.The property owner at 7040 Mill Creek Lane must agree to any work being done on his or
her land. The proposed grading on this property must also be included in the grading plan.
21.The slopes must be less than 3:1. The developer’s engineer must revise the grading on
Outlot A and Block 3 to meet this standard.
22.The contours show water flowing to the northeast corner of Block 1, Lot 1. The developer’s
engineer must revise the grading or mark the elevation at the building corner to direct water
flow away from the structure.
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Planning Commission Summary – August 20, 2013
23.The driveway grades on Block 1, Lot 2 and Block 3, Lot 3 must be revised so that the grade
does not exceed 10% at any point on the driveway.
24.An escrow (110% of the estimated erosion control for this development) is required before
site grading begins.
25.The following materials are prohibited for retaining wall construction: smooth face, poured-
in-place concrete (stamped or patterned concrete is allowed), masonry, railroad ties or
timber.
26.Walls taller than 6 feet shall not be constructed with boulder rock.
27.The grading behind the retaining wall must be modified so that water will not drain down the
face of the wall.
28.A Homeowners Association shall be created to take ownership of the retaining wall.
29.The plans must annotate the width of the roadway, sidewalks, and the right-of-way.
30.The plans must show the station where the new construction ties in to the existing road as
well as the limits of construction.
31.The plans must include erosion control measures to the limits of construction.
32.The developer’s engineer must revise the grades of the driveway at Block 1, Lot 2 and Block
3, Lot 3 to be between 0.5 and 10.0% at any point on the driveway.
33.The driveway on Block 3, Lot 4 must be moved out of the 10-foot side yard setback.
34.In the submitted plans, the pipe length in the profile view does not match the length of pipe
in the plan view. This must be revised so the plans are consistent.
35.The watermain will connect the stubs at Kings Road and Mill Creek Lane to create a loop.
36.At the time of the final plat, the assessment for Minnewashta Parkway improvements plus the
additional accrued interest must be paid or reassessed.
37.Water and sewer hookups are due at the time of final plat. The hookup fees will be assessed
at the rate in effect at that time.
Fire Marshal:
38.Proposed fire hydrant(s) location is acceptable.
39.No burning permits will be issued for tree/brush removal. They must be chipped or hauled
away.
40.Prior to new home combustible construction fire hydrants must be made serviceable.
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Planning Commission Summary – August 20, 2013
41.Prior to new home construction fire apparatus access roads capable of supporting the weight
of fire apparatus shall be made serviceable.
42.A three-foot clear space must be maintained around fire hydrant(s).
Natural Resource Coordinator:
43.The trees should be field located as to allow for a 20-foot wide access to the pond. The
applicant shall work with staff to delineate a clear zone to the pond.
44.Tree protection fencing shall be installed at the edge of grading limits near preserved areas of
trees.
Parks and Recreation:
45.In lieu of parkland dedication and/or trail construction, full park dedication fees shall be
collected at the rate in force at the time of final plat approval. At today’s rate, these fees
would total $46,400 (8 lots x $5,800 per lot).
Water Resources Coordinator:
46.Wetland must be shown at the 948 foot contour and the 25-foot buffer and 30-foot setback
must be shown accordingly.
47.All wetland and buffer areas not within an outlot must be contained within a drainage and
utility easement.
48.Wetland buffer signage must be shown on the plan and installed concurrently with the
erosion prevention and sediment control practices.
49.The applicant must apply for and receive a General Permit to Discharge Stormwater
Associated with Construction Activity Under the National Pollution Discharge Elimination
System/State Disposal System
50.The applicant must provide a standalone Storm Water Pollution Prevention Plan (SWPPP)
containing the required elements as detailed in the above permit to the city prior to any earth-
disturbing activities.
51.A dewatering plan must be provided to the city and at least 48-hours notice given prior to
drawing down the existing pond for the purpose of installing the infiltration bench. This
dewatering plan shall be incorporated into the SWPPP.
52.The details must be changed to reflect the most up-to-date city standard details.
53.The invert elevation at the downstream end of the storm sewer pipe from CBMH 1 to the
existing manhole shall be lowered to an elevation that allows for a greater slope than the
immediately upstream pipe run.
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Planning Commission Summary – August 20, 2013
54.The applicant’s engineer shall move the filtration bench to the west side of the pond outlet
for improved maintenance access. If this is not practicable from an engineering perspective,
supporting documentation must be provided to and agreed upon by the city.
55.A twenty (20) foot wide maintenance access which allows cross slope meandering shall be
shown on the plan and provided for during construction.
56.SWMP Fees totaling $15,646.50 shall be provided to the City with final plat.
All voted in favor and the motion carried unanimously with a vote of 7 to 0.
CITY COUNCIL ACTION UPDATE.
Kate Aanenson provided updates on action taken by the City
ndth
Council on planning items at their July 22 and August 12 meetings.
FUTURE PLANNING COMMISSION AGENDA ITEMS.
Kate Aanenson reviewed the upcoming
Planning Commission meeting schedule.
Withrow moved, Weick seconded to adjourn the meeting. All voted in favor and the motion
carried unanimously with a vote of 7 to 0. The Planning Commission meeting was adjourned at
7:25 p.m.
Submitted by Kate Aanenson
Community Development Director
Prepared by Nann Opheim
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