Edwards Dam was a hydroelectric dam on the Kennebec River in the U.S. state of Maine. It was located in Augusta, Maine, about 40 miles upstream from the Atlantic Ocean. Built in 1837 of timber and concrete, it was 917 feet long and 24 feet high. It is most famous for its removal in 1999, the first removal of a hydroelectric dam by the government against the wi…Edwards Dam was a hydroelectric dam on the Kennebec River in the U.S. state of Maine. It was located in Augusta, Maine, about 40 miles upstream from the Atlantic Ocean. Built in 1837 of timber and concrete, it was 917 feet long and 24 feet high. It is most famous for its removal in 1999, the first removal of a hydroelectric dam by the government against the wishes of the dam owner.