This Solicitation opportunity from Department Of Defense was posted on April 23, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.
LOCK FOUNDATION AND SITE PREPARATION FOR LOCK and DAM 25 NAVIGATION ECOSYSTEM SUSTAINABILITY PROGRAM (NESP)
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The U.S. Army Corps of Engineers, St. Louis District, is soliciting bids for the construction of lock foundation and site preparation work at Lock and Dam No. 25 under solicitation W912P926RA001, with a response deadline of April 24, 2026. The work includes excavation and disposal of existing riprap, dredging and placement of sand fill for the lock foundation, installation of a sheet pile separator wall braced with piles, construction of a downstream deflector to redirect water flow, and placement of additional dredge borrow for a staging area along with a sanitary outfall pipe. The contract requires the contractor to furnish all equipment, labor, operators, supervision, materials, and incidentals necessary to complete the scope, with performance to be conducted at Winfield, Missouri. The solicitation explicitly prohibits paper submissions and mandates that proposals be submitted electronically via email to Angie Grimes and Whitney Dee, with strict requirements for three separate PDF volumes: technical proposal, small business participation, and price proposal with administrative documents. Each volume has strict page limits, cross-referencing between volumes is forbidden, and proposals exceeding limits will be partially evaluated. Contract type is firm fixed price, and award will be made on a best value trade-off basis, with construction approach and past performance equally weighted and more critical than small business participation, all of which are balanced against price. The solicitation has undergone multiple amendments to refine requirements and ensure compliance. Amendment 0005 replaced the standard FAR clause 52.236-16 with Alternate 1 and incorporated updated drawing sheets GI002 and CG203, while Amendment 0006 introduced tax exemption language. Earlier amendments addressed bidder inquiries via the ProjNet portal, with inquiries reopening through April 3, 2026, and administrative updates made through Amendment 0002 and 0001. The evaluation process is governed by four factors—construction approach, past performance, small business participation, and price—with no numerical weights but clear qualitative thresholds; offerors must achieve at least a marginal rating on all non-cost factors to be eligible for award. Proposal submissions must comply with SAM.gov registration, including a valid UEI, and require certifications regarding small business status, subcontracting plans, E-Verify compliance, and security training. Security requirements mandate DoD/Army training within 30 days of award, compliance with FPCONs and RAMs, NCIC-II
General Info
Agency
NAICS
Place of Performance
Winfield, MO, 63389, USASet-Aside
Timeline
Submission Closed
Organization & Contact Information
Full Description
***Amendment 0006
The purpose of this amendment is to incorporate tax exemption language. All other terms and changes remain unchanged.
***Amendment 0005
The purpose of this amendment is to remove FAR clause 52.236-16 and replace it with FAR 52.236-16 Alternate 1. This amendment also incorporates updated drawing sheets
GI002 and CG203. All other terms and conditions remain unchanged.
***Amendment 0004
This amendment is issued to provide replies to ProjNet Bidder Inquiries as of 8 Aprio, and make all resulting changes. See attachments for full details of Amendment 0004.
***Amendment 0003
This amendment is issued to provide replies to ProjNet Bidder Inquiries, and make all resulting changes. ProjNet Bidder Inquiries is re-opened through 4:00pm CST, 3 April 2026. There are some attachments that must be requested in order to be provided via DoD SAFE. See attachments for full details of amendment 0003.
***Amendment 0002
This amendment is hereby issued to make administrative updates to the above-referenced solicitation in accordance with the Government Responses to ProjNet Bidder Inquiries as of 4 March 2026:
***Amendment 0001
This amendment is issued to make administrative updates to the solicitation.
***Proposal will be submitted via EMAIL Angie Grimes at angie.l.grimes@usace.army.mil and Whitney Dee at whitney.r.dee@usace.army.mil
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.
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