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<br />DEPARTMENT OF THE ARMY
<br />U.S. Army Corps of Engineers
<br />Washington, DC 20314-1000
<br />
<br />CECW,EH-D
<br />
<br />Engineer Manual
<br />No. 1110-2-1601
<br />
<br />EM 1110-2-1601
<br />
<br />1 July 1991
<br />
<br />Engineering and Design
<br />HYDRAULIC DESIGN OF FLOOD CONTROL CHANNELS
<br />
<br />Subject
<br />
<br />Paragraph
<br />
<br />Chapter 1
<br />Introduction
<br />
<br />Purpose ,..........,........... 1-1
<br />Scope. . , , . . . . . . . . . . . . . . . . . . . . . 1-2
<br />References ,.......",..,.,..... 1-3
<br />Explanation of Terms. . . . . . . . , . . , . . 1-4
<br />Channel Classification ............. 1-5
<br />Preliminary Investigations
<br />for Selection of Type of
<br />Improvement .....,............, 1-6
<br />
<br />Chapter 2
<br />Open Channel Hydraulic Theory
<br />Physical Hydraulic
<br />
<br />Elements ,..................... 2-1
<br />Hydraulic Design .
<br />
<br />Aspects ,.,..,............,.... 2-2
<br />Flow Through Bridges ............. 2-3
<br />
<br />Transitions. , , , . . . . . . . . . . . . . . . . . . 2-4
<br />Flow in Curved Channels. . . . . . . . . . , , 2-5
<br />Special Considerations. ............ 2-6
<br />Stable Channels. . . .. .........,... 2-1
<br />
<br />Chapter 3
<br />Rlprap Protection
<br />
<br />Section I
<br />I nlroduetion
<br />General. . . . . . . .. ............... 3-1
<br />Riprap Characteristics, . _ . . . . . . . . . . . 3-2
<br />
<br />Seetwn II
<br />Channel C/uuacteristies
<br />Side Slope Inclination, ..'......... 3-3
<br />Channel Roughness. Shape.
<br />Alignment. and
<br />
<br />Gradient. . . . " ., ...........,... 3-4
<br />
<br />Page
<br />
<br />Table of COntents
<br />
<br />Subject
<br />
<br />Pa",graph Paga
<br />
<br />2-1
<br />
<br />2-2
<br />2-6
<br />2-10
<br />2-14
<br />2-11
<br />2-18
<br />
<br />3-1
<br />3-1
<br />
<br />3-5
<br />
<br />3-5
<br />
<br />1-1
<br />I-I
<br />1-1
<br />1-1
<br />1-1
<br />
<br />Section III
<br />Design Guidance for Stone Size
<br />General. , , , , . . . . . . . . , . . . . . . . . . .. 3-5 3-6
<br />Design Conditions ................, 3-6 3-6
<br />
<br />Stone Size . . . . . . . . . . . . . . . . . . . . . .. 3-1 3-6
<br />Revetment Top and End
<br />
<br />Protection "........,.......,.,.. 3-8 3-9
<br />
<br />1-1
<br />
<br />Seetwn IV
<br />Revetml!nl Toe Scour Estimation and Protection
<br />General. . . , . . . . . . . . . . . . , . . . . . . .. 3-9 3-10
<br />Revetment Toe ProteCtion
<br />Merhods ,..................... 3-10 3-11
<br />Revetment Toe Protection
<br />Design, , . . . . . . . . . . . . . . . . . . . . .. 3-11 3-11
<br />Delivery and Placement .....,...... 3-12 3-12
<br />
<br />Section V
<br />Ice, Debris, and Vegetation
<br />Ice and Debris. , . . . . . . . . . . . . . . , .. 3-13 3-13
<br />Vegetltion ......."..."......, 3-14 3-13
<br />
<br />Section VI
<br />Quality Control
<br />Quality Control ,.....,.,.,....... 3-15
<br />
<br />3-13
<br />
<br />Chapter 4
<br />Special FeatUres and Considerations
<br />Sediment Control Sttuctures , . . . . . . . .. 4-1 4-1
<br />Air Entrainment. . . . . . . . . . , . . , . . . .. 4-2 4-3
<br />Hydraulic Jump in Open
<br />
<br />Channels ..........,............ 4-3 4-4
<br />Open ChannelJ unctions ............. 4-4 4-6
<br />Hydraulic Model Studies ,........... 4-5 4-10
<br />
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