Z--P777 WHARF CHARLIE IMPROVEMENTS, NAVAL STATION MAYPORT, FL

Project P777 is a design-build contract awarded by the Department of Defense through Navfacsyscom Southeast for improvements to Wharf Charlie at Naval Station Mayport, Florida. The scope of work involves significant structural enhancements, including the construction of a steel sheet pile bulkhead tied to an existing cellular diaphragm wall, the installation of a new concrete cap, and the placement of self-hardening flowable fill. Additional requirements include the installation of foam filled fenders, new asphalt paving, and a sacrificial cathodic protection system for steel piling and underground utility piping. The project also entails extensive utility work, requiring the demolition of existing cold iron structures and the relocation of fuel, water, and sanitary mains. The contractor is responsible for reconstructing concrete utility igloos and installing new piping and wiring for electric, potable water, sanitary, oily waste, fuel, and steam services, as well as installing area lighting on aluminum standards. Furthermore, the contract includes an option for the construction of an elevated second deck featuring mooring hardware, vehicular access ramps, pedestrian stairways, and a concrete slab supported by beams, columns, and deep foundations.