The document on this Reference CD teaches the basic skills and knowledge of drainage engineering and will help you develop sound engineering judgement needed to solve drainage problems.
It will enable you to describe hydrology; calculate drainage areas, runoff, and runoff for successive areas; design open and closed channels; and control erosion.
The images below show pages taken from this document.
This Reference CD also includes Adobe PDF Reader for Windows 95, 98, 98SE, 2000, and XP to ensure you will be able to view the document.
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DRAINAGE ENGINEERING
U.S. Army Engineer Center and School
(136 pages)
April 1994
Describe Hydrology and Calculate Drainage Areas
Overview
Introduction
Part A - Basic Principles of Hydrology and How to Use Them to Estimate Runoff
Identification of the States in the Hydrologic Cycle
Interpretation of the Hydrography
Using the Isohyetal Map When Pinpoint Data Is Not Available
Depth of Intensity Conversions
Using Rainfall Intensity/Duration Curves
Part B - Delineate a Drainage Area and Estimate the Acreage
Introduction
Delineation
Stripper Method
Practice Exercise
Answer Key and Feedback
Calculate Runoff
Overview
Introduction
Part A- Calculate Runoff Using the Rational Method
Rational Method
Rational Method Design Procedures
Part B - Determine the Intensity (I) With and Without Pinpoint Data
Introduction
Adjusted “I”
Practice Exercise
Answer Key and Feedback
Calculate Runoff for Successive Areas
Overview
Introduction
Calculation of Runoff for Successive Areas
Practice Exercise
Answer Key and Feedback
Design Open Channels
Overview
Introduction
Part A - Hydraulic Theory and the Equation of Continuity as it Applies to Open Channel Design
Fluid Flow Types
Flow Assumptions
Part B - Manning’s Equation
Velocity of Flow, V
Hydraulic Slope, S
Part C - Ditches and Functions
Interceptor Ditch
Diversion Ditch
Side Ditch
Part D - Ditch Shapes or Sections
Triangular or V
Trapezoidal
Symmetrical
Nonsymmetrical
Segmental
Part E - How to Prevent Erosion in an Open Channel
Checkdams to Slow Velocity
Riprap and Rubble
Decreasing the Hydraulic Radius
Pavement
Part F - Designing an Open Channel for a Given Drainage Area
Open Channel Design
Design a Channel for a Roadside Ditch
Practice Exercise
Answer Key and Feedback
Design Closed Culverts
Overview
Introduction
Part A - The Theory of Closed Channel Flow
Part B - Four Types of Culverts
CMP
Concrete Pipe
Concrete Box
Expedient
Part C - Culvert Placement in Ditch Design
Alignment
Grade (Slope)
Spacing of Relief Culverts
Part D - Cover, Bedding, and Fill for CMP
Cover
Bedding
Backfill
Headwalls and Wingwalls
Part E- Design of Pipe Culverts With Unsubmerged Inlets
Part F - Example (Unsubmerged Inlet)
Part G - Designing a Culvert for a Roadway
Practice Exercise
Answer Key and Feedback
Control Erosion
Overview
Introduction
Part A - Protection Against Surface Water Erosion
Interceptor Ditches
Terracing
Vegetal Cover
Part B - Erosion Control in Open and Closed Channel Drainage
Open Channel Erosion Control
Culvert Erosion Control
Part C - Conditions Causing Subsurface Erosion
Part D - Methods of Controlling Subsurface Erosion
Deep Ditch
French Drains
Vertical Wells
Sand Blanket
Subsurface Pipe or Subgrade Drainage Installations
Move the Project
Geotextiles
Practice Exercise
Answer Key and Feedback
Examination
Appendix A - List of Common Acronyms
Appendix B - List of Symbols
THIS DOCUMENT IS IN ELECTRONIC ADOBE PDF FORMAT
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