NarrativeCHANHASSEN, MINNESOTA
December 4, 2020
SITE INFORMATION
PID & Acreage Parcel I : 251550022 - 112.78 acres - Tim and Dawne Erhart
Parcel 2: 250240811 - 3.67 acres - David & Mary Blanski
Parcel 3: 252990510 - 1.66 acres - Citv of Chanhassen
Wetland Management
The wetland (Wetland 2) to be modified exists partially within three parcels noted above. The
wetland limits have been delineated by Kjolhaug Environmental Services Company May 12,
2020. T?ie City of Chanhassen approved the delineation on August 7,2020. Wetland 2 was
classified as a manage 2 as previously reviewed by the City and Riley Purgatory Bluff Creek
Watershed District with the Foxwood subdivision approval and as defined in the City's Surface
Water Resource Plan.
ERIIART / BLANSKI / CITY PROPERTY
WETLAND ALTERATION AND INTERIM USE PERMIT
SUBMITTAL NARRATf\'E
Work Area Location: E of Powers Blvd, W of Great Plains Blvd, S of Foxwood Development, N
ofw 96s St.
DESCRIPTION OF INTERIM USE PERMIT REQUEST
The request for interim use permit is for the proposed excavation of an existing wetland along
with excavated borrow being placed on a location within the Erhart parcel. The proposed request
is to complete the excavation of an existing wetland (Wetland 2) during winter months to create
a basin for a pennanent water storage area. The applicant is proposing the work to enhance the
visual appearance of the existing wetland, but the work will additionally provide hydrologic
flood storage in excavated basin as well. The excavated borrow material from the wetland will be
placed on the Erhart parcel property. The wetland modification will not result in a net increase
or decrease in the size of the wetland. The propose wetland alteration is simply adding depth to
the wetland to create a watff storage pool. The application provides a proposed grading plan that
shows the maximum grading work possible, with no excavation or permanent impact outside of
the wetland delineation limits. The actual grading work will be completed as 'field fit'
construction process to allow flexibility in deviating from plans based on existing conditions. At
no point will the proposed grading limits exceed what is shown in the civil engineering plans.
Contmctor to work with the applicant, landowner representatives, wetland scientist and relevant
regulatory authorities when completing grading activity to provide the desired result for all.
lnterim Use Permit December 4, 2020
Wetland Alteration - Chanhassen, MN Page I of 3
Local Govemmental Unit
City ofChanhassen Riley Purgatory BluffCreek Watershed District
Wetland
Classificalion
Buffer Strip
Requirement
Accessory
Structure
Setback to
Buffer
Average Base
Buffer Width
Requiredr
Min. Avg Base
Buffer Width
Required2
MANAGE 2 20 30 t5 MEDIUM 40 20
INTERIM USE PERMIT I2 GENERAL STANDARDS JUSTIFICATION
Check to City findings for granting an Interim Use Permit (pursuant to City Subdivision Code
Section 20-321):
a. The wetland alteration will not be detrimental to or endanger the public health, safety,
comfort, convenience, or general welfare ofthe neighborhood or the city. The excavation
of the wetland is following all SWPPP regulations and guidelines. The wetland is being
graded with a 10' l0:l slope of the edge to ensure future safety of the public. The
alteration of the wetland will not be an inconvenience to the neighborhood or the city.
The wetland alteration will provide more value to sr[rounding neighbors as the visual
appearance of the wetland will be more appealing to the public and visitors to the city.
The construction will be during winter months as to have minimal impact.
b. The wetland alteration has no effect on the objectives ofthe city's comprehensive plan.
c. The wetland has been designed and will be constructed and maintained to be compatible
to the surrounding existing wetlands.
d. The existing wetland does not have a planned use in the neighborhood. The wetland
alteration will not be hazardous in any way to the neighborhood.
e. The wetland will visually serve all travelers along Great Plains Blvd (TH 101). The
Wetland is also visible from Eagle Ridge Road. The city will maintain access with the
owned City owned Outlot in the Foxwood Development. New property owners in the
proposed conceptual development will have an enhanced view of the altered wetland.
f. The wetland has no requirements for any public facilities. The alteration of the wetland is
being privately funded and will increase the value ofhomes in the area.
g. The wetland alteration will not be detrimental to any persons or property because of
noise, smoke, fumes, glare, odors, rodents, or trash. The contractor will complete all
activities in accordance with City code.
h. The wetland currently does not have any approaches. The wetland alteration will not be
adding any approaches that may alter traffic in any manner.
i. The wetland is currently not of historic significance.j. The altered wetland will have a very similar aesthetic look of surrounding wetlands.
k. The wetland alteration will not depreciate surrounding property values.
l. The wetland alteration is will meet all city requirements and standards.
Interim Use Permit December 4. 2020
Wetland Alteration - Chanhassen, MN Page 2 of 3
Principal
Structure
Setback to Buffer
Wetland
Classification
Notes:
l.) The wetland buffer calculations for future subdivision will be provided with the subdivision application.
CONCLUSION
The applicant respectfully concludes that the request for interim use permit will maintain
existing total wetland area. The proposed modification will result in a wetland classification
consistent with the existing wetland, not reduce hydrologic capacity in the wetland and fits
within the City's goals and objectives for this area.
December 4
Wetland Alteration - Chanhassen, MN Page 3 of 3