MIDDLE MISSISSIPPI RIVER STONE DIKE ALTERATION (NESP)

The U.S. Army Corps of Engineers, St. Louis District, is soliciting bids for the Middle Mississippi River Stone Dike Alteration project under solicitation number W912P926BA004, with a response deadline of June 1, 2026, at 10 a.m. CST. The work involves modifying 44 existing river training structures and constructing two new ones within two ten-mile reaches of the Mississippi River near Herculaneum and Ste. Genevieve, Missouri. All materials required for the project must be sourced from recycled stone removed during the modification of existing structures; no new stone material is to be furnished. The scope encompasses degradation, removal, and relocation of Graded Stone A, which consists of 5,000-pound top-size stone, as well as notching or removing existing structures and performing appurtenant work consistent with the specifications and drawings. Traditional marine construction equipment, including floating plant and barge-mounted cranes, is expected to be used for execution. Amendment 0001 updates the solicitation by providing official responses to bidder inquiries and revising Section 3.3.2 regarding work stages in the specifications. It also removes DFARS Clause 252.215-7009 and adds FAR Clause 52.222-34 in full text, while all other terms and conditions remain unaffected. The North American Industry Classification System code for this contract is 237990, and the performance location is in Missouri, with the contracting office located in St. Louis. Abrielle Campbell serves as the primary point of contact, and all submissions must be made through the SAM.gov portal by the firm deadline, which will not be extended.