Hyrum Dam Spillway Road Closure

The road atop Hyrum Dam, W 300 South, will be closed starting June 2, 2025, while crews construct a new spillway before demolishing the existing one. The road will remain closed to all traffic until construction is completed, which is anticipated to take 3 to 4 years. Road detours will be clearly marked. Hyrum State Park will remain open and can be accessed from S 400 West in Hyrum.  For more information, click here.