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Manning's roughness coefficient for Illinois streams

Data Series 668

In Cooperation with the Illinois Department of Natural Resources—Office of Water Resources
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Abstract

Manning's roughness coefficients for 43 natural and constructed streams in Illinois are reported and displayed on a U.S. Geological Survey Web site. At a majority of the sites, discharge and stage were measured, and corresponding Manning's coefficients—the n-values—were determined at more than one river discharge. The n-values discussed in this report are computed from data representing the stream reach studied and, therefore, are reachwise values. Presentation of the resulting n-values takes a visual-comparison approach similar to the previously published Barnes report (1967), in which photographs of channel conditions, description of the site, and the resulting n-values are organized for each site. The Web site where the data can be accessed and are displayed is at URL http://il.water.usgs.gov/proj/nvalues/.

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Manning's roughness coefficient for Illinois streams
Series title:
Data Series
Series number:
668
Year Published:
2012
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Reston, VA
Contributing office(s):
Illinois Water Science Center
Description:
iv, 14 p.
Country:
United States
State:
Illinois
Online Only (Y/N):
Y