The work associated with the Hyrum Dam Spillway Replacement Project will take place approximately 9 miles southwest of Logan, Utah in Cache County, Utah. The overall work is for the construction of a new spillway and the removal of the existing spillway. This includes, but isn't limited to: removal and control of water, construction of a new reinforced concrete spillway, riprap outlet channel, riprap inlet area, associated mechanical and electrical features, associated drainage systems, associated foundation aggregate piers, roadway bridge, gate hoist structure and equipment, radial gates, embankment dike, new inverted siphons for irrigation canals, administrative access road and drainage, roadway realignment, and excavation and removal of the existing spillway structure. The anticipated performance period is March 2025 through January 2029.
