Yolo Bypass Wildlife Area Habitat and Drainage Improvement Project Sub-Project 2 and 4
Odin was engaged by Ducks Unlimited to enhance the Yolo Bypass Wildlife Area’s ability to manage wetland resources
and agricultural operations. Project improvements will allow the CDFW to expand the acreage of managed wetlands within the wildlife area, increase the productivity of existing wetlands, improve rice field management, reduce on-site flooding from the South Davis Drain, and improve public access. Odin’s scope of work under the Green’s Lake Modifications component is to clear and grub .5 miles of existing ditch and excavate approximately 40,000 CY of soil from Green’s Lake. Excavation of the soft marsh soil is being completed using long-reach excavators. The wet soil is being processed for transport and beneficial use in raising roadways at and near Green’s Lake. Once the soil is placed, Odin will complete the roadway surfaces by placing aggregate base. Additional scope includes removing and replacing two concrete water control structures, installing eight new concrete water control structures, one culvert, and approximately 500 tons of riprap. This project component also includes building a patrol road from the existing lift station to four risers, totaling approximately 2.2 miles, and excavating a sump for the planned new pump station. The project area contains environmentally sensitive species, such as active Swainson’s Hawk nesting sites, requiring compliance with project environmental permits as well Stormwater Pollution Prevention Plan requirements.