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HydroCAD® Stormwater Modeling - Since 1986

NEH-4

National Engineering Handbook:
Section 4 - Hydrology

Author: USDA Soil Conservation Service (SCS)
            Now Natural Resources Conservation Service (NRCS)

"This section of the engineering handbook contains methods and examples for studying the hydrology of watersheds and for solving special hydrologic problems that arise in planning, evaluating, and design of soil and water conservation and flood prevention measures, including structures for water use, control, and disposal."

Comments:

NEH-4 is a "must have" reference for any engineer involved in hydrology.   While the size (2" thick) may be intimidating, it contains authoritative information on many central topics including:

bulletStorm rainfall data
bulletHydrologic soil groups and SCS curve numbers
bulletProcedures for calculating time-of-concentration
bulletThe SCS method for estimating runoff
bulletHydrograph routing methods
bulletStage-discharge relationships (hydraulics)

How to get a copy:

NEH Section 4 is being republished as "Part 630-Hydrology".  Individual chapters are available in PDF format on this NRCS web page.   A complete copy of handbook is also included in the HydroCAD CD Reference Library.

You may also be able to order printed copies from the National Technical Information Service or by calling 1-800-553-6847. Request document number PB86-180494.

 
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