Starved Rock Lock and Dam - Upper Guidewall Repair

The project involves extensive concrete repair work on the vertical face of the upstream guidewall at Starved Rock Lock and Dam, located on the Illinois Waterway in the Rock Island District. The scope includes concrete demolition utilizing specialized techniques like wiresawing, vertical resurfacing with precast panels, and the removal and reinstallation of the traveling kevel rail system. Additional contract options may cover horizontal resurfacing and vertical repairs around the bullnose area of the guidewall. Work is scheduled for the summer of 2018, during periods of ongoing navigation restrictions at the lock and dam. Due to the location and nature of the work, construction will require a floating marine plant and crane, with operations limited to non-navigation hours to maintain lock access. Land access within the work zone is very restricted, necessitating careful planning and coordination. The contract is structured as a base bid plus options, emphasizing the need for flexibility in addressing potential additional repair needs. The project is managed by the Rock Island District with contract assistance from a designated specialist, and it falls under the NAICS code 237990.