W912P926RA004 - NESP LD25 1200 ft Lock --------- The U.S. Army Corps of Engineers (USACE), St. Louis District, has an upcoming solicitation for constructing a new 1,200 ft Lock for Lock and Dam 25. Lo... W912P926RA004 - NESP LD25 1200 ft Lock --------- The U.S. Army Corps of Engineers (USACE), St. Louis District, has an upcoming solicitation for constructing a new 1,200 ft Lock for Lock and Dam 25. Lock and Dam 25 is located approximately 61.5 river miles upstream from St. Louis and 241.5 miles above the mouth of the Ohio River. SEE ATTACHMENT FOR FULL DETAILS OF UPCOMING REQUIREMENT SOLICITATION.