Terzaghi Dam
Terzaghi Dam is the key diversion dam in BC Hydro's Bridge River Power Project. It forms the project's largest reservoir, Carpenter Lake west of Lillooet. Originally known as the Mission Dam, it was renamed Terzaghi Dam in 1965 to honor Karl von Terzaghi, the civil engineer who founded the science of soil mechanics. It is located about 30 km up the Bridge River from its confluence with the Fraser. It stands at the head of the Big Canyon of the Bridge River, completely blocking the river, which is diverted through two tunnels through Mission Mountain to a pair of powerhouses on Seton Lake.