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 [Map: There is a USGS Water Science Center office in each State.] Washington Oregon California Idaho Nevada Montana Wyoming Utah Colorado Arizona New Mexico North Dakota South Dakota Nebraska Kansas Oklahoma Texas Minnesota Iowa Missouri Arkansas Louisiana Wisconsin Illinois Mississippi Michigan Indiana Ohio Kentucky Tennessee Alabama Pennsylvania West Virginia Georgia Florida Caribbean Alaska Hawaii and Pacific Islands New York Vermont New Hampshire Maine Massachusetts South Carolina North Carolina Rhode Island Virginia Connecticut New Jersey Maryland-Delaware-D.C.

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Indirect Measurements

Please contact Janice Fulford with questions.


OSW Memos
SW 88.07 Guidelines for Establishment of a Crest-Stage Gage Network
SW 93.07 Stage Accuracy Requirements
SW 93.17 Revised Manning's n for Corrugated Metal Culverts

SW1004TC Basic Hydraulics Principles
SW2009TC Surface Water Hydraulics Analyses

CAP - Culvert Analysis Program
SAC - Slope-Area Computation Program
WSPRO - Water Surface Profile Program
NCALC - Manning's n Calculation Program


Roughness Coefficients
Barnes, H.H., 1967, Roughness Characteristics of Natural Channels, WSP-1849
Arcement, G.J. and Schneider, V.R., 1989, Guide for Selecting Manning's Roughness Coefficients for Natural Channels and Flood Plains, WSP-2339
Hicks, D.M. and Mason, P.D., 1991, Roughness Characteristics of New Zealand Rivers, DSIR Marine and Freshwater
Jarrett, R.D., 1985, Determincation of Roughness Coefficients for Streams in Colorado, WRIR 85-4004
Coon, W.F., 1995, Estimates of Roughness Coefficients for Selected Natural Stream Channels with Vegetated Banks in New York, OFR 93-131
Gillen, D.F., 1996, Determination of Roughness Coefficients for Streams in West-Central Florida, OFR 96-226

Bodhaine, G.L, 1968, Measurement of Peak Discharge at Culverts by Indirect Methods, Book 3, Chapter A3
Dalrymple, T. and Benson, M.A., 1967, Measurement of Peak Discharge by the Slope-Area Method, Book 3, Chapter A2
Mattahai, H.F., 1967, Measurement of Peak Discharge at Width Contractions by Indirect Methods, Book 3, Chapter A4
Benson, M.A. and Dalrymple,T, 1967, General Field and Office Procedures for Indirect Measurements, Book 3, Chapter A1
Hulsing, H., 1967. Measurement of Peak Discharge at Dams by Indirect Methods, Book 3, Chapter A5
Davidian, J., 1984, Computation of Water-Surface Profiles in Open Channels, Book 3, Chapter A15

Computer Program Manuals and References
Jarrett, R.D. and Petsch, H.E., Jr, 1985, Computer Program NCALC User's Manual--Verification of Manning's Roughness Coefficient in Channels, WRIR 85-4317
Fulford, J.M., 1994, User's Guide to SAC, a Computer Program for Computing Discharge by Slope-Area Method, OFR 94-360
Fulford, J.M., 1995, User's Guide to the Culvert Analysis Program, OFR 95-137
Shearman, J.O., 1990, User's Manual for WSPRO--A Computer Model for Water Surface Profile Computations, FHWA-IP-89-027
Shearman, J.O., Kirby, W.H., Schneider, V.R. and Flippo, H.N., 1985, Bridge Waterways Analysis Model: Research Report, FHWA/RD-86/108

Text/Reference Books
Chow, V.T., 1959, Open-Channel Hydraulics, McGraw-Hill, New York
Henderson, F.M., 1966, Open-Channel Flow, Macmillan Pub. Co., New York
French, R.H., 1985, Open-channel Hydraulics, McGraw-Hill, New York

Other Links
HEC/COE Hydrologic Engineering Center/U.S. Army Corps of Engineers

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