J. T. Myers Landside Lock Outlet Diffuser Study, Ohio River
ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB
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Navigation improvements are planned at J. T. Myers Locks and Dam on the Ohio River main stem. The existing project consists of a navigation dam, a 1,200-ft-long by 110-ft-wide main lock chamber adjacent to a 600-ft-long by 110-ft-wide auxiliary lock chamber. One of the improvements includes developing a 1,200-ft long lock chamber from the existing 600-ft-long lock chamber. The outlet design originally proposed for the filling and emptying system in the extended lock section was a manifold type diffuser located within the landside guide wall monolith and discharging toward the right looking downstream bank. A landside diffuser would help minimize closure of the main lock during construction of the lock extension. A 125-scale model was used to evaluate the originally proposed outlet design Hite 2004. Since the publication of that report, the lock design changed and a new outlet design was necessary. This report provides the results of the model investigation for the new outlet design. The performance of the outlet design was based on scour tendencies in the vicinity of the outlet and hawser forces experienced by a tow moored at various locations in the lower lock approach. Two different guide wall designs were tested during the study.
- Civil Engineering
- Fluid Mechanics