Foundation Treatment at Chickamauga Dam

Chickamauga Dam is on the Tennessee River, 7 miles above the City of Chattanooga, Tenn. The river flows westerly at this point. The project consisted of a lock adjacent to the north, or right, bank; a spillway across the main part of the stream; and a power house on the south, or left, bank, with two sections of earth dam, one on the right flood plain 1,300 ft long, and another on the left plain 2,900 ft long, known as the north and south earth dams, respectively, making a total of 5,900 ft. In plan, the structure is a flat U shape. The axis was curved downstream to follow the best foundation rock available. Fig. 55 shows the general plan of the dam.