Stoplog Slot Cuts Conversion MATOC

The Stoplog Slot Cuts Conversion Multiple Award Task Order Contract (MATOC) is a U.S. Army Corps of Engineers (USACE) contract vehicle designed to support lock and dam infrastructure modifications along the McClellan-Kerr Arkansas River Navigation System (MKARNS). The contract focuses on stoplog slot cut conversions, which involve specialized construction activities including concrete demolition, underwater and above-water concrete placement, dive work, and steel fabrication to modify lock chamber bulkhead recesses and stoplog installations. Each conversion project is unique but follows a consistent technical approach to infrastructure rehabilitation and modernization of navigation system components.

Task orders under this MATOC have ranged from minimum guarantee contracts of $10,000 to substantial projects exceeding $16 million, with contractors including Mcmillen Jacobs Associates, Alberici Constructors, J.F. Brennan Company, Massman Construction, and Johnson Bros Corp. The contract has a $200 million shared ceiling and runs through February 11, 2029, with task orders typically being firm fixed-price and focused on specific lock and dam infrastructure improvements along the MKARNS in Arkansas and Oklahoma. No set-aside designations have been used in the awarded task orders, indicating open competition among contractors. The most significant task orders to date involve lock chamber bulkhead recess work at specific facilities like the James W. Trimble Lock and Dam and the Dardanelle Lock and Dam, with performance periods ranging from 850 to 1,200 calendar days.