Lock and Dam 1, Red River Waterway; Hydraulic Model Investigation.
ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS HYDRAULICS LAB
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Lock and Dam 1 is the first navigation structure for the development of navigation on the Red River Waterway. The structure is located in a cutoff channel in the left overbank about 43.7 realigned channel miles above the Mississippi River. The structure includes one lock located along the left bank with clear chamber dimensions of 84 by 785 ft and a dam, consisting of a spillway with eleven 50-ft-wide gates, that is designed to provide a normal pool to el 40 upstream to Lock and Dam 2 mile 74 and to pass a project flood flow of 225,000 cfs. A model reproducing two reaches of the Red River frm 1967 river mile 52.0 to 49.8 and from mile 44.0 to 41.5 and the proposed cutoff connecting these two reached, including Lock and Dam 1, was built for this study. The model was built with provisions to model the channel bed either in pea rock to an undistorted scale of 1120 for navigation tests so velocities and current directions could be taken or in crushed coal to a distorted scale of 1120 horizontally and 180 vertically for channel development tests to study bed configuration changes. The model study was conducted to determine navigation conditions and channel developments to be expected from the original design and to develop modification that might be required to a improve flow conditions that would be adverse to navigation, and b minimize the dredging required to maintain a channel of satisfactory dimensions along a desired alignment.
- Civil Engineering