LOCK FOUNDATION AND SITE PREPARATION FOR LOCK and DAM 25 NAVIGATION ECOSYSTEM SUSTAINABILITY PROGRAM (NESP)
Closed Pre-Solicitation Posted
This opportunity was awarded. See its 2 award notices in the notice history.
- Solicitation number
- W912P926RA001
- Agency
-
ENDIST St Louis
US Army Corps of Engineers, Department of Defense
- Responses due
- Set-aside
- No set-aside
Opportunity facts
- NAICS code
- 237990 Other Heavy and Civil Engineering Construction
- Place of performance
- Lock and Dam 25, Winfield, MO 63389 63389
- Points of contact
Notice details come from SAM.gov. Updated .
About this opportunity
The U.S. Army Corps of Engineers, St. Louis District, is soliciting a contractor to perform lock foundation and site preparation work for Lock and Dam 25 as part of the Navigation Ecosystem Sustainability Program (NESP). The scope of work encompasses excavation and disposal of existing scour protection riprap, dredging and placement of sand fill for the lock foundation, construction of a riprap berm, and installation of a sheet pile separator wall with pile bracing. Additional work includes constructing a downstream deflector to manage water flow around the separator wall and site preparation activities such as placement of dredge borrow upland and installation of a sanitary outfall pipe. The contractor must provide all necessary equipment, labor, operators, site supervision, quality control, supplies, materials, and incidentals required to complete the construction activities. The pre-solicitation notice was posted on January 15, 2026, with an anticipated solicitation deadline of April 24, 2026. This procurement is classified under NAICS code 237990 (Other Heavy and Civil Engineering Construction) and PSC code Y1PZ (Construction of Other Non-Building Facilities).
No set-aside designation has been applied to this procurement opportunity. The pre-solicitation notice does not disclose specific award values, budget ranges, contract timelines, or identifiable incumbent contractors. The notice indicates that a presolicitation synopsis update was issued to revise the Period of Performance (POP) information, though the updated timeline details are not explicitly stated in the provided documentation. Interested firms should monitor the Federal Procurement Data System and related channels for the formal solicitation release and any additional announcements regarding project schedule, budget parameters, and technical specifications that will be issued prior to the April 24, 2026 deadline.
Notice text
3 versions
Update #3 · Latest ·
The U. S. Army Corps of Engineers, St. Louis District, is seeking a firm to furnishing all equipment, labor, operators, supervision/site superintendent, quality control, supplies, materials, and incidentals necessary to satisfactorily perform and provide construction activities of lock foundation and site preparation work. The lock foundation work establishes the lock wall and floor foundation. It consists of excavation and disposal of existing scour protection riprap that was part of previous scour hole emergency repair, dredging of sand fill, placement of sand fill in the proposed lock foundation, and placement of riprap berm. Work also includes the construction of a separator wall that will separate the river side riprap berm from the dredged sand that will be placed as foundation material for the future river wall monoliths and lock floor. The separate wall will be a sheet pile wall braced with piles. This effort also includes a deflector on the downstream side of the dam to route water flowing through the tainter gated dam adjacent to the river walls around the sheet pile separator wall. For the site preparation work, additional dredge borrow will be placed upland for a future staging and laydown area and a sanitary outfall pipe will be installed. ---- Presolicitation Synopsis Update 0001 - update the POP information.
Update #2 ·
The U. S. Army Corps of Engineers, St. Louis District, is seeking a firm to furnishing all equipment, labor, operators, supervision/site superintendent, quality control, supplies, materials, and incidentals necessary to satisfactorily perform and provide construction activities of lock foundation and site preparation work. The lock foundation work establishes the lock wall and floor foundation. It consists of excavation and disposal of existing scour protection riprap that was part of previous scour hole emergency repair, dredging of sand fill, placement of sand fill in the proposed lock foundation, and placement of riprap berm. Work also includes the construction of a separator wall that will separate the river side riprap berm from the dredged sand that will be placed as foundation material for the future river wall monoliths and lock floor. The separate wall will be a sheet pile wall braced with piles. This effort also includes a deflector on the downstream side of the dam to route water flowing through the tainter gated dam adjacent to the river walls around the sheet pile separator wall. For the site preparation work, additional dredge borrow will be placed upland for a future staging and laydown area and a sanitary outfall pipe will be installed. ---- Presolicitation Synopsis Update 0001 - update the POP information.
Update #1 ·
The U. S. Army Corps of Engineers, St. Louis District, is seeking a firm to furnishing all equipment, labor, operators, supervision/site superintendent, quality control, supplies, materials, and incidentals necessary to satisfactorily perform and provide construction activities of lock foundation and site preparation work. The lock foundation work establishes the lock wall and floor foundation. It consists of excavation and disposal of existing scour protection riprap that was part of previous scour hole emergency repair, dredging of sand fill, placement of sand fill in the proposed lock foundation, and placement of riprap berm. Work also includes the construction of a separator wall that will separate the river side riprap berm from the dredged sand that will be placed as foundation material for the future river wall monoliths and lock floor. The separate wall will be a sheet pile wall braced with piles. This effort also includes a deflector on the downstream side of the dam to route water flowing through the tainter gated dam adjacent to the river walls around the sheet pile separator wall. For the site preparation work, additional dredge borrow will be placed upland for a future staging and laydown area and a sanitary outfall pipe will be installed.
Notice history
| Notice | Type | Posted |
|---|---|---|
| LOCK FOUNDATION AND SITE PREPARATION FOR LOCK and DAM 25 NAVIGATION ECOSYSTEM SUSTAINABILITY PROGRAM (NESP) | Award Notice | |
| LOCK FOUNDATION AND SITE PREPARATION FOR LOCK and DAM 25 NAVIGATION ECOSYSTEM SUSTAINABILITY PROGRAM (NESP) | Award Notice | |
| LOCK FOUNDATION AND SITE PREPARATION FOR LOCK and DAM 25 NAVIGATION ECOSYSTEM SUSTAINABILITY PROGRAM (NESP) | Solicitation | |
| This notice | Pre-Solicitation | |
| LOCK FOUNDATION AND SITE PREPARATION FOR LOCK and DAM 25 NAVIGATION ECOSYSTEM SUSTAINABILITY PROGRAM (NESP) | Pre-Solicitation |
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