AMD08_GFI_Preconstruction Survey_20191108.pdf

This document package includes preconstruction survey reports and photos for the Lewisville Dam Safety Modification project and the related solicitation. The preconstruction survey reports document two site visits to assess existing conditions at the Lewisville Dam in Texas prior to beginning construction work. The first visit in August 2019 documented areas around the spillway, east staging area, and air bridge. The second visit in late August documented the outlet works, staging areas, parallel road, parking area, flood hazard reduction features, and proposed borrow and disposal areas.

The solicitation seeks design-build proposals for safety modifications to the Lewisville Dam spillway. Proposals are due in January 2022 with award planned for July 2022. The U.S. Army Corps of Engineers Fort Worth District will manage the project, which involves upgrading the spillway to handle higher flood flows as part of dam safety requirements.