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|Title:||Choctaw Bar Reach (mile 555.8 - 567.0 AHP) : analysis of channels and probable effects of proposed dikes|
|Authors:||United States. Mississippi River Commission.|
United States. Army. Corps of Engineers. Lower Mississippi Valley Division.
United States. Army. Corps of Engineers. Vicksburg District.
Choctaw Bar Reach
|Publisher:||United States. Army. Corps of Engineers. Vicksburg District.|
Engineer Research and Development Center (U.S.)
|Series/Report no.:||Potamology studies ; 3-1.|
Summary: This report presents a special study of the Choctaw Bar reach including that portion of the river from 1962 mile 555.8 to 567.0 AHP. The purpose of the study is to analyze the divided flow channels from the standpoint of channel geometry, water surface profiles, energy slopes, and energy loss and roughness factors. These factors are compared for past conditions and present conditions to show that present conditions are favorable for partial chute closure with stone training dikes. The results of the studies indicate that conditions are better for developing the bendway channel than they have been since 1952. The proposed design for a stone dike system planned to deteriorate the chute channel is presented and the probable effects are predicted. In conclusion the results of the studies indicate that conditions are favorable for partial closure and gradual deterioration of the chute channel with the proposed transverse and longitudinal stone dike system. Slopes in the upper portion of the bendway are expected to flatten with increased flow and with deepening through the bendway. Slopes in the lower portion of the bendway are expected to increase with aggravated shoaling conditions in this reach.
|Rights:||Approved for public release; distribution is unlimited.|
|Appears in Collections:||Potamology Investigations Report|
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|Potamology-Studies-Report-3-1.pdf||7.68 MB||Adobe PDF|