Garrison Dam Historic Spillway Gates Open
Channel: USACE Omaha District
Date: 2011-06-02

Shortly before 8 a.m. on June 1, 2011, the U.S. Army Corps of Engineers opened the gates to pass floodwaters 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.