C.j. Cleansvendornametrait.phpmahan Construction Company, LLC

C.J. Mahan Construction Company, LLC, based in Grove City, Ohio, is a for-profit limited liability partnership that serves as a prime contractor to the U.S. Army Corps of Engineers for heavy civil and marine infrastructure construction, maintenance, repair, and rehabilitation work across the Great Lakes and Ohio River Division, competing exclusively in full and open (non-set-aside) federal procurement with no SBA certifications.

The company has been active in federal contracting since at least 2003 and operates across multiple specialized capability areas grounded in concrete project delivery. Its marine-infrastructure focus includes lock chamber dewatering, mooring cell removal, miter gate repair, lines shaft rehabilitation, and crane barge maintenance — representative work includes a $6.1 million lock chamber dewatering project at Warsaw, Kentucky (completion November 2025) under the Design Bid Build Marine Based Construction for LRD River Districts IDIQ, a $5.2 million miter gate removal and repair order at Green River, Kentucky (completion January 2026), and a $2.97 million lines shaft repair at Markland Locks and Dam in Vevay, Indiana (completion October 2026). Its heavy civil construction capability encompasses lock approach wall construction and decommissioning — a $558.4 million definitive contract awarded March 2026 for Chickamauga Lock approach walls and decommissioning on the Tennessee River (completion September 2031) and a prior $78.4 million upstream approach walls project at Chickamauga Lock (completion January 2026). The company also delivers pump station assessment and scanning services, exemplified by a $25 million contract awarded June 2024 for high-resolution scanning and condition assessment of discharge pipes at Grand Prairie Pump Station in Arkansas (completion October 2028). Equipment-focused work includes tow haulage system replacement and crane rehabilitation services under the LRN CRANE R3 MATOC, a $95 million multiple-award vehicle awarded September 2023.

Customer concentration centers entirely on Army Corps of Engineers entities across the Huntington, Louisville, Nashville, and Pittsburgh districts of the Great Lakes and Ohio River Division. The Department of the Army (three awards, $662.1 million combined potential value) anchors the portfolio with major definitive contracts including the Chickamauga Lock and Grand Prairie Pump Station awards. The broader Department of the Army Corps of Engineers footprint (22 awards, $398.2 million combined potential value) covers district-level contracting, with Engineering District Louisville (9 awards, $100.9 million), Engineering District Nashville (2 awards, $103.8 million), and Engineering District Pittsburgh (4 awards, $63.6 million) accounting for most regional work. Top customer rankings by award count and potential value diverge significantly — the $1.4 billion portfolio is anchored by three large definitive contracts (representing 95% of combined potential value) while the Corps districts drive volume through smaller delivery orders under multiple-award IDIQs.

C.J. Mahan holds four primary vehicle positions with the Corps. The Design Bid Build Marine Based Construction for LRD River Districts IDIQ ($75 million ceiling, award date September 2022, completion September 2027) has generated seven task orders totaling $21 million for marine construction and maintenance services across the Huntington and Pittsburgh districts. The Design Bid Build Land for LRD River Districts IDIQ ($98 million ceiling, award date December 2022, completion December 2027) has produced two task orders totaling $5.5 million for land-based construction projects, including the $5.45 million Haysi Municipal Building contract in Virginia. The LRN CRANE R3 MATOC ($95 million ceiling, award date September 2023, completion September 2026) covers crane rehabilitation and construction with capacities from 5 to 600 tons across the four districts. An older single-award regional mechanical dredging contract ($45 million ceiling, award date January 2022, completion January 2027) issues guaranteed-amount task orders for dredging operations. All vehicles operate under firm fixed-price delivery order structures and no-set-aside designations.

Award activity shows modest recent velocity (seven awards in 2025 and 2026 combined, down from peaks of six to seven annually in 2022–2024), but the portfolio carries significant recompete exposure: seven awards with ultimate completion dates in the next twenty-four months carry $72.7 million in combined potential value, primarily the Chickamauga Lock downstream approach walls contract and supporting maintenance and equipment work at regional facilities. The company's NAICS concentration reflects specialization — 35 of 42 awards fall under NAICS 237990 (Other Heavy and Civil Engineering Construction), with secondary awards in crane manufacturing and support services. Work is performed across Kentucky, Indiana, Ohio, West Virginia, Pennsylvania, Tennessee, and Arkansas, with administrative coordination from Grove City, Ohio. The vendor operates as a 100% prime contractor with no subcontract footprint in the source data.