Hydraulic models guide design of Garrison Dam spillway, mega dam safety project
David Beck (center), Garrison Dam operations project manager with the U.S. Army Corps of Engineers, Omaha District, discusses the Garrison Dam Spillway Modification Project during a three-day design workshop at the U.S. Army Engineer Research and Development Center in Vicksburg, Mississippi, December 11, 2025. The project is the largest dam safety modification project in the history of the U.S. Army Corps of Engineers and will improve the safety and structural integrity of the Garrison Dam in North Dakota. (U.S. Army Corps of Engineers photo by Delanie Stafford)