The WES Stream Investigation and Streambank Stabilization Handbook
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The descriptions, design specifications, placement locations, spacing and various applications of Cross-Vane, W-Weir and J-Hook Vane structures are presented. These structures were developed and subsequently applied to: 1) establish grade control, 2) reduce streambank erosion, 3) facilitate sediment transport, 4) provide for irrigation diversion structures, 5) enhance fish habitat, 6) maintain width/depth ratio, 7) improve recreational boating, 8) maintain river stability, 9) dissipate excess energy, 10) withstand large floods, 11) maintain channel capacity, 12) be compatible with natural channel design, and 13) be visually acceptable to the public.
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Abstract : The Morameal Revetment is located on the left bank of the Red River near Elm Grove, Louisiana, with the downstream end of the bank protection works beginning at mile 256.6 (mileage established in 1967 by the Corps of Engineers). The revetment was inspected by the U.S. Army Engineer Waterways Experiment Station (WES) evaluation team on 9 May 78.
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This book combines the principles of engineering and horticulture to solve the common and destructive problems of surficial and mass erosion of slopes. The authors provide information on the effective use of natural, indigenous materials. Detailed guidelines and procedures show how to design and implement contour wattling, brush layering, live willow staking, brush matting, and other biotechnical measures. The book shows how to predict soil losses and estimate safety factors for earth slope and discusses the hydromechanical influences of vegetation, such as the action of plant roots, that prevent erosion and maintain more secure slopes.
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In this paper, a slope stability analysis for steep banks is used in conjunction with a method to calculate lateral erosion distance, to predict bank stability response to lateral erosion or bed degradation. The failure plane angle, failure block width, and volume of failed material per unit channel length may be calculated for the critical case. These parameters define the bank geometry following failure and form the starting point for subsequent analyses. The calculation procedure is illustrated by a worked example. Following mass failure slump, debris accumulates at the bank toe. The debris is removed by lateral erosion prior to further oversteepening or degradation generating further mass failures. Any process‐based model for channel width adjustment must account for the combined effects of lateral erosion and mass instability in producing bank instability. The approach adopted here represents a marked improvement over earlier work, which does not account for changes in bank geometry due to lateral erosion prior to mass failure. The engineering applications are presented in a companion paper.
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The U.S. Army Corps of Engineers completed its last great waterway project, the Red River Waterway in Louisiana, Dec. 31, 1994. The project took more than a quarter of a century and $1.8 billion after it was authorized by Congress in 1968. Reaching from the Mississippi River to Shreveport, La., the Red is now a 200 ft wide, 9 ft deep channel rather than a meandering river noted for capricious channel changes. The last two major contracts, for Locks and Dams No. 4 and 5., were carried out under the Corp's first full scale attempt at partnering and total quality management. According to Corps managers, agency-contractor cooperation led to no claims on either contract, without cost increases. There are five sets of locks and dams on the river, which is now 50 miles shorter because meanders have been redirected into the new alignment. Riprap placed along banks, various types of revetments and dikes stabilize the channel. Recreational facilities are being provided in cooperation with the Red River Waterway Commission, which is also planning to extend the shipping channel into Arkansas if feasible.
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Gallon (US)
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Hydraulics
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Preface to Fourth Edition.Chapter 1 Properties of Fluids.Chapter 2 Fluid Statics.Chapter 3 Fluid Flow Concepts and Measurements.Chapter 4 Flow of Incompressible Fluids in Pipelines.Chapter 5 Pipe Network Analysis.Chapter 6 Pump-pipeline System Analysis and DesignChapter 7 Boundary Layers on Flat Plates and in Ducts.Chapter 8 Steady Flow in Open Channels.Chapter 9 Dimensional Analysis, Similitude and Hydraulic Models.Chapter 10 Ideal Fluid Flow and Curvilinear Flow.Chapter 11 Gradually Varied Unsteady Flow from Reservoirs.Chapter 12 Mass Oscillations and Pressure Transients in Pipelines.Chapter 13 Unsteady Flow in Channels.Chapter 14 Uniform in Loose-boundary Channels.Chapter 15 Hydraulic Structures.Answers.Index.Conversion Table.
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Out of the tragedy of the Great Mississippi Flood of 1927 the U.S. Army Corps of Engineers’ Waterways Experiment Station, the premier hydraulics research lab in the United States, was born.
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