Rock Island District Public Notices

City of Waukee (CEMVR-RD-2023-371)

Rock Island District
Published April 5, 2023
Expiration date: 5/9/2023

Applicant: City of Waukee, c/o Mr. Rudy Koester, 805 University Avenue, Waukee, Iowa 50263.

Project Location: The proposed project is located on a 116-acre site on an unnamed tributary of Sugar Creek located in Section 32-34, Township 79 North, Range 26 Wes and Sections 4-6 Township 78 North, Range 26 West, within the City of Waukee, Dallas County, Iowa. UTM NAD-83 Zone 15, Latitude 41.597333, Longitude -93.889611.

Project Description:
A. The Applicant has proposed to construct a new 22-acre impoundment for regional storm water management. The new pond will involve the excavation of 295,000 cubic yards of soil throughout the stream channel and ponded are which will allow the area to reach the depth needed to attain the storage goals. A new 434-foot-long pipe will be installed underneath 6th Street to allow the passage of water and at the end a rock splash basin will be built to dissipate the energy of the water. The side slopes of the pond are proposed to be at a 3:1 slope.

B. This project will result in the loss of 3256 feet on intermittent stream and 394 feet of ephemeral stream channels and the loss of 0.82 acres of emergent wetland. To compensate for this loss the Applicant has proposed to mitigate the wetland and stream loss through the purchase of wetland and stream credits from an approved wetland and stream mitigation bank in the service area of the impacts. According to the Iowa Stream Mitigation Method, 11,717 stream mitigation credits will be required.

C. The Applicant’s project proposed purpose for this project is to provide stormwater management within the Sugar Creek Watershed and to provide a recreational amenity. The Applicant has provided an Alternatives Analysis but has not provided an avoidance and minimization statement.

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