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Computer-Based Predictions of Atchafalaya Bay Sedimentation

by William H. McAnally, Jr., US Army Engineering, Waterways, Experiment Station, Vicksburg, MS, USA,
Stephen A. Adamec, Jr., US Army Engineering, Waterways, Experiment Station, Vicksburg, MS, USA,
Robert F. Athow, Jr., US Army Engineering, Waterways, Experiment Station, Vicksburg, MS, USA,
Joseph V. Letter, Jr., US Army Engineering, Waterways, Experiment Station, Vicksburg, MS, USA,



Document Type: Proceeding Paper

Part of: Hydraulics and Hydrology in the Small Computer Age

Abstract:

The Atchafalaya River, a distributary of the Mississippi River, discharges into Atchafalaya Bay through the Lower Atchafalaya River and Wax Lake Outlet. The bay delta has grown rapidly over the last 12 years, altering the bay area and its hydrodynamic behavior. Three computer-based computation techniques have been applied to the Atchafalaya Bay delta growth. Two of the methods could not have been done by manual methods and the third (extrapolation) was considerably improved by the computer application. The results produced are consistent with the assumptions of each method and combined use of the results permit a more reliable projection of delta growth.

Subject Headings: Bays | Computing in civil engineering | Sediment | Rivers and streams | Computer analysis | Computer aided operations | Water discharge | Mississippi River

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