In polk county, phase I DAM modifications and user access project at birdland marina, prospect park, harriet access, and scott avenue sites - PCC pave

The Iowa Department of Transportation received a $62.5 million Project Grant award from the U.S. Department of Transportation on August 29, 2022 under the National Infrastructure Investments (CFDA 20.933) federal grant program. The funding will support Phase I of the Iowa DOT's Dam Modifications and User Access Project, which aims to mitigate safety risks from one low-head dam and enhance recreational access to the Des Moines River at four sites in Polk County, Iowa. Specifically, work will be done to modify the Scott Avenue Dam to provide whitewater amenities while improving fish passage. The project will also include improved boat launches, trails, signage, and other infrastructure to better serve users at Prospect Park, Birdland Marina, Harriet Access, and Scott Avenue. The Iowa Department of Agriculture serves as the parent organization to the Iowa DOT, the primary awardee responsible for delivering the infrastructure project supported by this $62.5M grant award.

Project description

In polk county, phase I DAM modifications and user access project mitigates one low-head DAM and enhances 3 additional access points at prospect park, birdland marina, and harriett access along a 5-mile stretch of the DES moines river within the city of DES moines, iowa. These improvements include the modification of a dangerous low-head DAM at scott avenue to provide recreational whitewater amenities. The project also includes improved fish passage, better user access and boat launches, portage, trails, and signage - portland cement concrete (PCC)/bridge rehabilitation