A 1:80-scale hydraulic model was used to study flow conditions in the canal downstream of the proposed Bay Springs Lock. The original design and plan of operation caused severe conditions in the canal and required modification (design 2) of the lock discharge system and lower approach geometry. Based on the results of this study, the design 2 diffuser and lower approach with a 2-min emptying valve schedule should provide satisfactory navigation conditions downstream of the project. This design is expected to produce a relatively slow upwelling of the water surface in the lower approach with a maximum height of 2.5 ft and to exert a force of less than 36 tons on a tow similar to that used in the study. (Author).

Published by the University of Akron Press, Akron, OH 44325-1703. Annotation copyright by Book News, Inc., Portland, OR