Video: Garrison Dam Historic Spillway Gate Opening
Video by Kevin Wingert
Shortly before 8 a.m. on June 1, 2011, the U.S. Army Corps of Engineers opened the gates to pass flood waters for the first time from the Garrison Dam spillway. Seven gates were opened to the height of one foot each to release some 7,500 cubic feet per second of floodwaters. By Kevin Wingert, U.S. Army Corps of Engineers, Omaha District.