6th Street Dam on Grand River in downtown Grand Rapids

Water flows over the 6th Street Dam on the Grand River in downtown Grand Rapids, Michigan, April 22, 2026. The U.S. Army Corps of Engineers, Detroit District, is preparing an Environmental Impact Statement to evaluate removal of the aging low-head dam and construction of a new sea lamprey barrier to address public safety concerns, restore more natural rapids, and enhance aquatic habitat. (U.S. Army photo)