Numbers and Titles



Includeswatertight enclosure that allow construction operations below the surface of water.
See03 37 26 for underwater placed concrete. 31 64 00 for caissons. 35 53 00 for underwater construction.
31 52 13Sheet Piling Cofferdams
31 52 16Timber Cofferdams
31 52 19Precast Concrete Cofferdams