Navigation Conditions at John H. Overton Lock and Dam,Red River;Hydraulic Model Investigation.

摘要

The John H. Overton Lock and Dam will be the second navigation structure proposed for the development of navigation on the Red River waterways. The structure will be located in a cutoff channel in the left overbank about 74 realigned channel miles above the Mississippi River. The structure will include one lock located along the left bank with clear chamber dimensions of 84 by 785 ft and a dam consisting of a spillway with seven 50-ft-wide gates and a 330-ft-long fixed-crest overflow weir designed to maintain during low flows a minimum upper pool at el 58.0 extending upstream about 37.5 miles to the proposed Lock and Dam 3. A semifixed-bed model reproducing about 3.7 miles of the Red River channel and adjacent overbank areas to an undistorted scale of 1:100 was used to provide some general information on navigation conditions with the proposed design and to develop such modifications as might be required to eliminate conditions that would adversely affect navigation using the lock. Results of the investigation are included in the report.