Mississippi River Basin, Lock 19, Keokuk, IA, Nose Pier Replacement and Bulkhead Recesses

The U.S. Army Corps of Engineers (USACE), Rock Island District, has a requirement for Mississippi River Basin, Lock 19, Keokuk, IA, Nose Pier Replacement and Bullnose Recesses.

The work includes but is not limited to: a base bid and two options. The base bid extends the riverwall monolith upstream and includes mobilization, hydrographic surveys, concrete removal above and underwater, mechanical dredging, underwater rock excavation, monolith extension using precast concrete segments and tremie concrete placement, checkposts and other appurtenances, fabrication of protection plate assembly, and electrical work. Option 1 constructs a bulkhead recess in the landwall and includes fabrication .... Read More