HomeMy WebLinkAbout3.b. Wetland Mitigation Plan - Schwartz Pond Park�(C)ISEMOU SIT EXECUTIVE SUMMARY
l' CITY COUNCIL -
City Council Work Session Meeting: October 13, 2010
AGENDA ITEM: Schwarz Pond Park — Wetland Mitigation
GENDA SECTION:
and Enhancements
PREPARED BY:, Dan Schultz, Parks & Recreation Director
AG NDA NO.
ATTACHMENTS: Colored Concept Plan, Concept/Grading
APPROVED BY:
Plans and Aerial Photo
RECOMMENDED ACTION: Discussion only.
ISSUE
City staff continues to work with SKB Environmental on the wetland improvements at Schwarz Pond
Park. Staff recently received a new concept plan that reduces the amount of open water that will be created
with the wetland improvement project. Although the new amount of open water is reduced, there will be
less disruption to the park and surrounding property. The original two -cell plan called for the excavation
of 12,000 cubic yards (cy) cut and 700 cy of fill and would have required 11,300 cy of material exported
from the site to create the new pond areas. There was concern from both the Parks and Recreation
Commission and staff at Rosemount High School about the damage that could result from the truck and
equipment traffic. The school representatives also voiced a concern about bringing the wetlands closer to
the athletic fields because of soccer balls rolling into the water and kids going in after them.
The new single -cell plan calls for what will be very close to a balanced site, including 6168 cy of cut and
6,290 cy of fill (using 20% shrinkage). The bridges from the original plan have also been removed. The
original cost was' estimated at $2,400 /ft for a 10' wide prefabricated steel truss bridge with abutments (plan
calls for 2 -40' bridges). The DNR also had concerns with the amount of concrete that would be needed to
install the structures for such a small.area. The fishing dock/ observation pier that was identified in the
original concept plan will still be installed even though it is not shown on the new concept /grading plan.
Another component that has been added to the project is a' new trail from the parking lot at Schwarz Pond
Park to an area just north of the Rosemount High School baseball field. The trail (located on City
property) is a much needed connection that will replace a dirt footpath that the City closed earlier in the
year due to safety concerns. The City had received many complaints regarding how steep the footpath was
and that it was often washed out after heavy rains.
BACKGROUND
At the City Council's June 9, 2010 work session, staff updated the City'Council on the proposed plan, for
SKB Environmental to mitigate wetlands at Schwarz Pond Park. SKB had approached the City to conduct
offsite mitigation in a location,that would provide public benefit and educational opportunities. The idea
of providing a public benefit and educational opportunities is greatly diminished by the location of the
SKB site. Following their initial request, SKB requested that they be allowed to satisfy their wetland
mitigation'requirements by purchasing wetland credits from a certified wetland -bank and also still move
forward with making the wetland improvements at Schwarz Pond Park that they had originally discussed
with the City. Using wetland credits from a certified wetland bank allows SKB to move forward on their
expansion plans without having to have a five year monitoring period of the new wetland that was to be
created. On July 20, 2010, the City Council approved the application for SKB to use a wetland bank to
meet their wetland mitigation requirements.
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SUMMARY
Staff will be meeting with representatives from Rosemount High School prior to the work session.
Staff would like to discuss the attached concept /grading plan with the City Council and receive feedback.
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