Army Corps Allocates $22 Million for Dredging of Garrison Dam Spillway Approach

BISMARCK, N.D. - The U.S. Army Corps of Engineers (USACE) issued a contract announcement of $22,019,171 to HSG Park Joint Venture 2, LLC for dredging of the spillway approach at Garrison Dam near Riverdale. The work is expected to be completed by August 27, 2027.

Built in 1953, the Garrison Dam is the second-most upstream project of six which were built on the mainstem of the upper Missouri River and has the largest reservoir storage capacity of all USACE projects in the nation. When combined with dams on the river's tributaries, the projects reduce the risk of downstream flooding along the Missouri and Mississippi rivers. This mainstem system of dams is managed to balance hydropower generation, water supply, water quality, irrigation, fish and wildlife conservation, navigation, and recreation benefits.