HomeMy WebLinkAboutCity Council Resolution 2010-216CITY OF PLYMOUTH
RESOLUTION No. 2010-216
A RESOLUTION APPROVING A PRELIMINARY PLAT FOR "ELM CREEK HIGHLANDS THIRD
ADDITION" FOR PROPERTY LOCATED AT MERRIMAC LANE AND SCHMIDT LAKE ROAD
(2010047)
WHEREAS, Alliant Engineering has requested approval of a preliminary plat for 17 additional
lots on this roughly 8.5 -acre parcel of land located at Merrimac Lane and Schmidt Lake Road;
WHEREAS, the property is presently legally described as follows:
Lot 24, Block 1, Elm Creels Highlands Second Addition, Hennepin County, Minnesota and
Outlot A, Elm Creels Highlands Second Addition, Hennepin County, Minnesota.
NOW, THEREFORE, BE IT HEREBY RESOLVED BY THE MAYOR AND CITY COUNCIL
OF THE CITY OF PLYMOUTH, MINNESOTA, that it should and hereby does approve the
request by Alliant Engineering for a preliminary plat for Elm Creels Highlands Third Addition,
subject to the following conditions.
A preliminary plat is approved for the creation of 17 lots for single-family homes to be
called Elm Creels Highlands Third Addition, in accordance with the plat and plans received
by the city on May 27 and July 6, 2010, except as may be amended by this resolution.
2. Prior to impacting any trees or proceeding with grading, the applicant shall install and
request inspections of tree preservation fencing and silt fencing.
With the final plat application or prior to recording the final plat (as may be
applicable), the applicant shall fulfill the requirements, submit the required information, and
revise the plans as indicated below, consistent with the applicable city code, zoning
ordinance, and engineering guidelines:
a. Assessment/easement/agreements/permit requirements:
(1) Payment of sewer and watermain area charges in the amount required at the time
the final plat is approved.
(2) Standard drainage and utility easements to be shown on the plat: 1) five feet from
side and rear property lines and 2) 10 feet from front property lines.
(3) A 20 -foot drainage and utility easement to be shown on the plat centered on all
public utilities outside the public right-of-way.
(4) Identify who will build the shared pond on the east boundary of the plat.
(5) Provide an unobstructed access easement for maintenance of the pond and outlet
channel. The access must be 15 feet wide and have a slope of less than 10 percent
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with a 12 -foot wide driving surface capable of supporting maintenance
equipment.
(6) Drainage and utility easements to be shown on the plat over all ponds, wetlands
and wetland mitigation areas to the 100 -year high water elevation and over the
volume control basins.
(7) Encroachment agreements for retaining walls in drainage and utility easements for
the following lots: Block 1, Lots 5 and 6, Block 2: Lots 1-4; and Block 3, Lots 2-
5. Modify the previous agreement for the wall on Lots 4 and 5, Block 3 as the
proposed wall has been extended beyond what was approved in Elm Creek
Highlands Second Addition.
(8) Conservation easements over the areas proposed for permanent protection. The
document shall be written to prohibit all strictures, with the exception of
improvements for drainage and erosion control purposes. The pond shall not be
included in the conservation easement. The conservation easement shall be
written to permit trails.
(9) Submit disclosures to be provided to homeowners on the current and proposed
Northwest Greenway trails location and add this information to the homeowner
association documents.
(10) Amend the homeowner association documents to assign responsibility to the
HOA for the conservation monuments, the wetland buffers and wetland buffer
monuments.
(11) Amend the homeowner association documents to assign responsibility to the
HOA for maintenance of the retaining walls that cross or are adjacent to property
lines.
(12) Required permits: MPCA for sanitary sewer main extension; Minnesota
Department of Health for water main extension; Elm Creek Watershed District;
NPDES and City of Plymouth for work in the Schmidt Lake Road right of way.
(13) Revise the lot areas shown on the preliminary plat and the lot summary table to be
consistent with each other.
b. Tree preservation and landscaping plans:
(1) Revise the plan to add 147 additional inches of replacement trees.
c. Grading and erosion control plans:
(1) Identify the lowest floor elevation at a minimum of two feet above the adjacent
water bodies. In addition, there must be a minimum of 18 inches of freeboard
between the lowest building opening where storm water may enter (doors or
windows) and the designated emergency overland overflow.
(2) Show the NWL and HWL elevations for the existing wetland on the north end of
the plat.
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(3) Show erosion control and details on the plan, including silt fence, rock
constriction entrance, inlet protection and erosion control blanket on 3:1 slopes
and greater.
(4) Drainage swales must be a minimum 1 3/4% grades.
(5) Constrict proposed retaining walls in the back yard areas of Lots 1, 2 and 3 of
Block 2 and Lots 3, 4 and 5 of Block 3 in conjunction with mass grading.
d. Street and utility plans:
(1) Include the most current approved details and standards as shown in the
engineering guidelines.
(2) Maintain two feet of freeboard between the high water level of the pond south of
50th Avenue and the low point of 50th Avenue. The structural street section of 50th
Avenue shall be kept above the high water level of the pond.
(3) After grading operations are completed, televise the existing storm sewer
immediately upstream of the new connection point on the 60 -inch HDPE pipe to
confirm it was not damaged.
(4) Verify that discharge velocities of storm sewer pipe between manhole 302 and the
flared end section will not create an erosion problem downstream. Additional
and/or larger rip rap may be required.
(5) Provide a casing pipe for the storm sewer crossing below the retaining wall under
the wall adjacent to Peony Lane. Provide a detail.
(6) Modify storm sewer note 5 to say "Standard Detail Specifications" instead of
"Engineering Guidelines."
(7) Sanitary sewer manhole no. 31 shall have a top of casting elevation above the
HWL of the adjacent pond.
(8) A temporary cul-de-sac may be required on the east end of 50t1' Avenue,
depending on the timing of the Elm Creek Highlands East plat.
(9) Call out the 60 -inch RCP crossing in the storm sewer and sanitary sewer profiles.
(10) Show what part of the pond south of 50th Avenue is proposed to be constricted
within this plat.
(11) Lengthen the vertical curve on the east end of 50th Avenue to 270 feet. Eliminate
the consecutive vertical curves.
(12) Lengthen the vertical curve at the 50t1' Avenue/Merrimac Lane intersection to 250
feet.
(13) Lengthen the vertical curve at the west end of Merrimac Lane to 125 feet.
e. Water resource plan:
(1) Indicate concrete trick washout areas.
(2) Submit drainage calculations for the shared pond with Elm Creek
Highlands East that demonstrate compliance with requirements for TSS,
phosphorus, volume and rate control for all areas draining to the pond.
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4. Submit a geotechnical report to address wetland fill in conjunction with submittal of the
building permit for the homes of Lots 2 and 3, Block 2 and Lots 2 and 3, Block 3. The
report shall be prepared by a certified engineer licensed by the State of Minnesota.
5. The trail along Schmidt Lake Road shall be completed in its entirety from Peony Lane to the
eastern edge of the plat with this phase. Include curb cuts at intersections and/or road
crossings.
6. Constrict an eight -foot wide bituminous switchback trail from the Schmidt Lake Road trail
to 50t1' Avenue North meeting safe and assessable grade and curve radius. Provide
connection to the sidewalk on the south side of 50t1' Avenue North. Constrict an eight -foot
wide bituminous trail on the north side of 50t1' Avenue North from the trail crossing (south
of 50th Avenue North) to the future trail connection to be built in outlot B, Elm Creek
Highlands East.
7. Should the final plat of this subdivision precede the final plat of the property to the east,
separate drainage and utility easement documents will be required to be recorded with the
plat and financial guarantees will be required for the constriction of the pond.
8. Should field adjustments to the tree preservation fencing result in additional impact, the
impact shall require review as outlined in section 530.19 of the city code.
9. Standard Conditions:
a. No building permits shall be issued until the final plat, the HOA documents and all
easements and agreements are filed and recorded with Hennepin County and proof of
recording is submitted to the city.
b. No building permits shall be issued until buffer and conservation easement monuments
are installed.
c. Any signage shall comply with the city's signage regulations.
d. Building permits are required for retaining walls 48 inches in height or higher.
Additionally, a fence with a minimum height of three feet shall be installed at the top of
retaining walls that exceed four feet in height.
e. Retaining walls in drainage and utility easements should be avoided where possible.
f. Removal of all hazardous trees from the property at the owner's expense.
g. This approval shall expire two years after the date of approval, unless the property owner
or applicant has substantially started constriction of the project, or unless the landowner
or applicant has received prior approval from the city to extend the expiration date for up
to one additional year, as regulated under Section 510 of city code.
ADOPTED by the Plymouth City Council on August 10, 2010.
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STATE OF MINNESOTA)
COUNTY OF HENNEPIN) SS.
The undersigned, being the duly qualified and appointed City Clerk of the City of Plymouth,
Minnesota, certifies that I compared the foregoing resolution adopted at a meeting of the
Plymouth City Council on August 10, 2010 with the original thereof on file in my office, and the
same is a correct transcription thereof.
WITNESS my hand officially as such City Clerk and the Corporate seal of the City this
day of
City Clerk