Interim Use Permit
CITY OF CHANHASSEN
PLANNING DEPARTMENT
7700 Market Boulevard
P.O. Box 147
CHANHASSEN, MN 55317
(952) 227-1100 FAX (952) 227-1110
LETTER OF TRANSMITTAL
DATE I JOB NO.
3/3/06
ATTENTION
Sue Nelson
RE:
Document RecordinQ
TO: Campbell Knutson, PA
317 Eagandale Office Center
1380 Corporate Center Curve
Eagan, MN 55121
WE ARE SENDING YOU
[8J Attached D Under separate cover via the following items:
D Shop drawings
D Copy of letter
D Prints
D Change Order
D Plans D Samples D Specifications
D Pay Request D _
COPIES DATE NO. DESCRIPTION
1 1/23/06 05-30 Conditional Use Permit - Electric Substation
1 2/27/06 06-03 Interim Use Permit - Minnetonka Middle School West
THESE ARE TRANSMITTED as checked below:
D For approval
D For your use
D As requested
D Approved as submitted
D Approved as noted
D Returned for corrections
D Resubmit copies for approval
D Submit copies for distribution
D Return corrected prints
D For review and comment [8J For Recording
D FOR BIDS DUE D PRINTS RETURNED AFTER LOAN TO US
REMARKS
COPY TO:
SIGNED:
If enclosures are not as noted, kindly notify us at once.
~
,.
CITY OF CHANHASSEN
CARVER AND HENNEPlN COUNTIES, MINNESOTA
lNTERIM USE PERMIT #06-03
1. Permit. Subject to the terms and conditions set forth herein, the City of Chanhassen
hereby grants an interim use permit for the following use:
To permit the grading of approximately 3,400 cubic yards for an infiltration basin and
drainage swales.
2. Property. The permit is for property situated in the City of Chanhassen, Carver County,
Minnesota, and legally described as follows:
Part of the SW 1A of the NW 1A of Section 3, Township 116, Range 23, Carver County,
Minnesota
3. Conditions. The permit is issued subject to plans dated December 19,2005 prepared
by Larson Engineering of Minnesota and the following conditions:
a. The applicant shall provide the City with a cash escrow or letter of credit in the
amount of $5,600.00 to guarantee erosion control measures and site restoration and
compliance with the interim use permit.
b. Verify the existing 24-inch culvert has sufficient capacity before replacing the private
drive entrance.
c. The applicant must provide a proposed haul route for review and approval.
d. If fill is coming from and/or going to another site in Chanhassen, a separate grading
permit will be required for the other property.
e. All disturbed areas as a result of construction are required to be reseeded and mulched
within two weeks of site grading.
f. An erosion control blanket must be installed on all sides around the infiltration basin.
All disturbed areas as a result of construction are required to be sodded or reseeded
and mulched within two weeks of site grading.
1
..
g. Submit a full size drainage area map.
h. Add City Detail Plates Nos. 3101, 3102, 3103, 5300, 5301 and 5302.
1. Show rock construction entrance per Detail Plate No. 5301. The applicant shall
construct and maintain a rock construction access to the site. Access to the site shall
be restricted to this access point only.
J. The applicant shall obtain and comply with all permit requirements of the Watershed
District and MnDOT.
k. Revise the existing storm sewer flow direction in all plans to match.
1. The applicant shall supply the City with a mylar as-built survey prepared by a
professional engineer upon completion of filling and/or excavation to verify the
grading plan has been performed in compliance with the proposed plan.
m. A plumbing permit must be obtained before installing the storm sewer piping.
n. The applicant shall provide a cross section for the filtration area showing the
elevation of the draintile and the trenches, as well as a cross section of the trench and
details of the material used. The draintile trenches shall be lined with drainage fabt?c
(4% to 6% open space) and filled with pea rock at a depth of at least 18 inches and 3
feet wide. The bottom of the entire filtration basin shall be backfilled with a mixture
of 50% coarse clean sand, 25% compost, 25% loamy topsoil for a minimum depth of
6 inches (from approximately 1034.5 to 1035.0). The rest of the area shall be top-
dressed with native topsoil. CB-l shall be revised to be an open beehive inlet at an
approximate elevation of 1037 for handling large storm event runoff if the
calculations for rate control work out to avoid overwhelming the filtration area and
having long periods (greater than 72 hours) of ponding.
o. Erosion control blanket/turf reinforcement mat (MnDOT Category 5) shall be used for
restoration of the exposed slope from the emergency overflow to the ditch along
Highway 41 within 7 days of final grade. The blanket shall be specified and a detail
provided. Erosion control blanket shall be installed on any exposed soils south of the
private drive within 24 hours of final grade.
p. A seed mix for shaded, wooded areas shall be specified in the plan, along with the
proposed rate of application. A seed mix for the filtration area and slopes shall also
be specified.
q. The rip rap at the flared-end section at the south end of the 24-inch pipe south of the
private drive shall be replaced.
r. Runoff from the storm sewer system from the school shall be controlled during
construction. The water shall be conveyed through a non-erosive means to the
Highway 41 ditch through the job site.
2
s. Erosion control blanket category 2 or 3 shall be installed within the filtration area
within 24 hours of connecting the I8-inch PVC to the basin. The blanket shall be
applied following a seeding. Remaining exposed soils on site shall be mulched and
seeded or sodded within 14 days of final grade.
t. The silt fence used shall be a City of Chanhassen type 1 silt fence; monofilament silt
fence with metal T -posts, 6 foot maximum spacing and 3 plastic zip ties in the top 8
. inches of the fabric. The silt fence specified for the filtration area shall be labeled as
"Installed after drain tile installation."
u. A rock construction exit pad shall be installed from the bituminous edge 40 to 50 feet
long into the job site.
v. Street sweeping shall be completed within 24 hours should soil be tracked upon paved
surfaces.
w. Catch basin inlet control shall be provided for the catch basins adjacent to the school
building if tracking of soil becomes a problem on the paved surfaces.
4. Termination of Permit. The City may revoke the permit following a public hearing for
violation of the terms of this permit.
5. Lapse. If within one year of the issuance of this permit the authorized construction has
not been substantially completed or the use commenced, this permit shall lapse, unless an extension
is granted in accordance with the Chanhassen Zoning Ordinance.
6. Criminal Penalty. Violation of the terms of this conditional use permit is a criminal
misdemeanor.
Dated: February 27, 2006
3
.
CITY OF CHANHASSEN
IL. A.r-
By:
By:
STATE OF MINNESOTA )
( ss
COUNTY OF CARVER )
The foregoing instrument was acknowledged before me this ~ day of ~
2006, by Thomas A. Furlong, Mayor and Todd Gerhardt, City Manager, of the City of Chanhassen,
a Minnesota municipal corporation, on behalf of the corporation and pursuant to authority granted
by its City Council.
~~~
Not blic
DRAFTED BY:
City of Chanhassen
7700 Market Boulevard
P. O. Box 147
Chanhassen, MN 55317
(952) 227-1100
I ,-, '
o.
KAREN J. ENGELHARDT I
Notary Public-Minnesota
My Commission Expires Jan 31, 2010
4