ARROWROCK DAM HYDROELECTRIC FACILITY
Mountain States Hydro, LLC constructed this Twin 7.5 mw Hydroelectric Facility in Boise, Idaho at the base of the Arrowrock Dam under an EPC (Engineer Procure Construct) contract.
The powerhouse houses two 7.5 megawatt turbines with a life expectancy of over 50 years. The powerhouse is 68 feet in diameter and over 75 feet tall from the base rock foundation to the roof. We drilled and blasted 19,000 cy of basalt rock to house the structure which has over 6,000 cy of concrete and over 700,000 pounds of reinforcing steel.