Garrison Dam Spillway – West Abutment Lignite Drain

The U.S. Army Corps of Engineers Engineering District Omaha is seeking a contractor to construct a new drainage system at the Garrison Dam Spillway's west abutment in North Dakota, classified as a dam safety project. The project involves installing an 812-foot long, 12-inch slotted C900 PVC drain pipe surrounded by a two-stage gravel and sand filter system, along with two cleanouts and a manhole connecting to an existing 18-inch PVC collector pipe. This solicitation uses a two-step sealed bidding process with a firm fixed-price contract, requiring contractors to submit technical proposals in Step-One that will be evaluated on two factors: past performance and construction approach, both of which must receive an "acceptable" rating to advance to Step-Two for price evaluation. The original Step-One proposal deadline of June 24, 2025 was extended to July 8, 2025, and as of October 29, 2025, RME LTD., LLC was identified as the only technically acceptable firm to proceed to Step-Two bidding. Performance and payment bonds equal to 100% of the contract price are required, and Davis-Bacon prevailing wage rates apply to this project.

This solicitation is unrestricted with no set-asides and is open to both small and large businesses. The contract magnitude is estimated between $1,000,000 and $5,000,000, with the government's cost estimate at $3,099,671.15 and RME LTD., LLC's Step-Two offer at $2,979,190.00. The project encompasses seven contract line items covering mobilization/demobilization, cleanouts, manholes, 803 linear feet of 12-inch slotted C900 PVC pipe, and 1,203 cubic yards of fine filter aggregate. Contractors have a 10-calendar day period to begin performance after receiving the notice to proceed, with a total project performance period of 450 calendar days. The work will be performed at Garrison Dam in Riverdale, North Dakota, with the most recent bid abstract posted on December 3, 2025.