ENDIST St Louis

The Department of the Army Corps of Engineers Engineering District St Louis, a sub-agency within the Army Corps of Engineers, manages water resources, navigation, and environmental stewardship across the St. Louis District, which encompasses the Mississippi River basin and related infrastructure including locks, dams, lakes, and Superfund sites within the district's jurisdiction. The St. Louis District executes both civil works construction and environmental remediation contracts on behalf of the Corps.

The St. Louis District has awarded 10,873 federal contracts totaling $2.46 billion in combined potential value since 1985, with $2.52 billion obligated to date. Recent activity shows 100 awards in 2023, 65 in 2024, 196 in 2025, 121 in 2026, and 1 recorded award so far in 2027. Contract competition is highly fragmented, with the top five primes by award count holding 16 percent of recent awards over the last five years. Arocep Federal, LLC leads by award count with 28 recent awards, followed by Prairie Engineers, P.C. with 17 and Ardl Inc. with 15, though Arocep's awards carry minimal combined potential value of $13 thousand. By combined potential value, competition is also highly fragmented at 3 percent top-five coverage; Woolpert, Inc. holds the largest recent value position with $25.7 million across 9 awards, trailed by Aero-Graphics Inc. at $15.3 million. The district transacts heavily through Schedule task orders, BPA calls, and modifications, reflected in the 121 awards recorded in 2026 with limited reported dollar values on individual transactions.

Set-aside activity is split between unrestricted competition (53 percent of awards) and small-business designations (43 percent), predominantly Total Small Business. The remaining awards are 8(a) sole source (3 percent) and smaller shares of WOSB, SDVOSB, HUBZone, and other designated categories.

Grant activity at the St. Louis District is minimal, consisting of 2 Cooperative Agreements totaling $342 thousand in federal dollars obligated in 2026, both awarded to The Student Conservation Association, Inc.

Current contract opportunities reflect the district's core mission: environmental remediation under CERCLA authority (Region 7 Southeast Mines Superfund Site, W912P927RA003, due November 6, 2026; ASARCO Taylor Springs Superfund Site, W912P927RA001, due October 19, 2026), civil infrastructure repair (MSD Infrastructure Repairs Phase 2 sewer rehabilitation using CIPP methods, W912P926BA009, due September 24, 2026), river and lake management (Wood River Relief Wells construction sources sought, W912P926Z9215, due October 28, 2026; Mark Twain Lake forest stand improvement and land management), equipment procurement and supplies (lock and dam equipment, lubricants, compact track loaders), and archaeological curation services (Plateau Regional Archaeological Curation Services, W912P926QA003, due August 27, 2026; F.E. Warren Air Force Base archaeological curation, W912P926Q1003). Many current opportunities are posted as Pre-Solicitation or Special Notice stages, with firm-fixed-price single award task orders and blanket purchase agreements predominating the contract structures.