LOCK FOUNDATION AND SITE PREPARATION FOR LOCK and DAM 25 NAVIGATION ECOSYSTEM SUSTAINABILITY PROGRAM (NESP)
Overview
Buyer
Place of Performance
NAICS
PSC
Set Aside
Original Source
Timeline
Qualification Details
Fit reasons
- NAICS alignment with historical contract wins in similar service areas.
- Scope strongly matches core technical capabilities and delivery model.
Risks
- Past performance thresholds may require one additional teaming partner.
- Potential clarification needed on staffing minimums before bid/no-bid.
Next steps
Validate eligibility requirements, assign capture owner, and schedule partner outreach to confirm teaming strategy before submission planning.
Quick Summary
The U.S. Army Corps of Engineers, St. Louis District, is soliciting proposals for Lock Foundation and Site Preparation for the Lock and Dam 25 Navigation Ecosystem Sustainability Program (NESP) in Winfield, MO. This Firm Fixed-Price construction contract, estimated at $54 million, involves significant civil and marine engineering work. The opportunity is under full and open competition. Proposals are due April 24, 2026.
Scope of Work
This project encompasses comprehensive lock foundation and site preparation activities. Key tasks include:
- Lock Foundation: Excavation and disposal of existing scour protection riprap, dredging and placement of sand fill for the lock foundation, and placement of a riprap berm. Construction of a sheet pile separator wall to isolate the river side riprap berm from the sand fill, and installation of a deflector to route water around the separator wall.
- Site Preparation: Placement of additional dredge borrow for a future staging and laydown area, and installation of a sanitary outfall pipe. Detailed plans and specifications cover environmental protection, quality control, safety, earthwork, structural steel, pipe piles, temporary facilities, instrumentation, and dredging operations.
Contract & Timeline
- Contract Type: Firm Fixed-Price Construction
- Estimated Value: $54,000,000
- Period of Performance: Site Preparation (365 calendar days), Lock Foundation (548 calendar days). An optional line item for an Assist Vessel (90 days) is included.
- NAICS Code: 237990 (Other Heavy and Civil Engineering Construction), with a Small Business Size Standard of $45,000,000.
- Set-Aside: Full and Open Competition
- Proposal Due Date: April 24, 2026, 3:00 PM Z (10:00 AM CST)
- Inquiries Due: March 20, 2026, 4:00 PM CST via ProjNet.
- Mandatory Site Visit: March 11, 2026, 09:00 AM - 12:00 PM CST at 10 Sandy Slough Rd, Winfield, MO 63389. RSVP required by March 10, 2026, 12:00 PM CST to Jacob Prebianca (314-422-8954).
- Estimated Award: June 16, 2026.
- Estimated Construction NTP: August 14, 2026.
Evaluation Factors
Award will be based on a Subjective Best Value Trade-Off. Proposals must be submitted in three volumes: Technical, Small Business Participation, and Price & Administrative. Key evaluation factors are:
- Construction Approach: (Site Layout & Logistics, Underwater Excavation & Dredging, Separator Wall Installation, Schedule) - Equally important as Factor 2, more important than Factor 3.
- Past Performance: (Recency, Relevancy) - Equally important as Factor 1, more important than Factor 3.
- Small Business Participation: (Commitment to 25% target) - Less important than Factors 1 & 2.
- Price: Evaluated for reasonableness and realism. Factors 1, 2, and 3 combined are equally as important as Factor 4. Offerors must achieve at least a "Marginal" rating for all non-cost factors. A Project Labor Agreement (PLA) is mandatory; failure to submit a compliant PLA will result in ineligibility for award.
Submission & Contact
Proposals must be submitted electronically via email to Angie Grimes (angie.l.grimes@usace.army.mil) and Whitney Dee (whitney.r.dee@usace.army.mil). Offerors must have an active SAM.gov registration and complete electronic Representations & Certifications. A Bid/Offer Guarantee is required.