Navigation Conditions at Belleville Locks and Dam, Ohio River.

Belleville Locks and Dam, designed to maintain during low flows a single upper pool extending upstream 41.7 miles, will replace Locks and Dams Nos. 18, 19, and 20 of the present Ohio River navigation system. The dam will consist of a nonnavigable gated structure 892 ft long with a damming height of 32 ft, and a 265-ft-long, fixed-crest weir connecting the gated spillway with the left bank. The locks, on the right bank, are to be of the high-lift type ultimate 22 ft consisting of two parallel chambers having clear dimensions of 110 by 1200 ft and 110 by 600 ft. An undistorted 1120-scale, fixed-bed model, reproducing approximately 3.1 miles of the Ohio River and the lock and dam structures, was used to study the adequacy of the proposed design, to determine the best location for the locks under various flow conditions, and to develop measures to overcome or minimize the effects of any adverse conditions noted. Author