Design-Bid-Build, P1044, Pier 31 Extension Naval Submarine Base New London, Groton, Connecticut   4

Background
The project is a Design-Bid-Build construction contract for the PIER 31 EXTENSION at Naval Submarine Base New London, Groton, Connecticut. The project includes construction of a concrete filled steel pipe pile supported pier extension with concrete deck, mooring fittings, mechanical and electrical utilities, an integrated composite fender system, and specialized equipment including composite camels. The pier will provide two berths for general berthing and maintenance at SUBASE New London. The project also involves relocation of the floating crane’s weight testing support facility.
Site preparation includes earthwork, soil treatment, selective utility and mooring demolition, and dredging to allow safe maneuvering room for vessels while mooring or exiting northern berths (Piers 31and 32 Turning Basin and Pier 10). Dredge disposal will include the use of Confined Aquatic Disposal (CAD) cell located in the Thames River. Environmental mitigation requirements include marine mammal and water quality monitoring, reporting to national oceanic and atmospheric administration national marine fisheries service, acoustic surveys, pre and post dredge sampling, benthic sampling and analysis of Confined Aquatic Disposal (CAD) cells and CAD cell cap assessment, shellfish resources testing and mitigation to satisfy federal, state and local environmental regulations and requirements.

Work Details
The work includes construction of a concrete filled steel pipe pile supported pier extension with concrete deck, mooring fittings, mechanical and electrical utilities, an integrated composite fender system, specialized equipment including composite camels. The project also involves relocation of the floating crane’s weight testing support facility.
Site preparation includes earthwork, soil treatment, selective utility and mooring demolition, and dredging to allow safe maneuvering room for vessels while mooring or exiting northern berths (Piers 31and 32 Turning Basin and Pier 10). Dredge disposal will include the use of Confined Aquatic Disposal (CAD) cell located in the Thames River. Environmental mitigation requirements include marine mammal and water quality monitoring, reporting to national oceanic and atmospheric administration national marine fisheries service, acoustic surveys, pre and post dredge sampling, benthic sampling and analysis of Confined Aquatic Disposal (CAD) cells and CAD cell cap assessment, shellfish resources testing and mitigation to satisfy federal, state and local environmental regulations and requirements.

Place of Performance
The construction projects will be performed at Naval Submarine Base New London in Groton, Connecticut.