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Methods for determining manning's coefficients for Illinois streams

January 1, 2004

Determination of Manning's coefficient, n, for natural streams remains a challenge in practices. One source for determining the n-values that has received practitioners' attention is presenting the n-values determined from field data (measured discharge and water-surface slope) in combination of photographs and site descriptions (ancillary information). Further improvements in the visual approach can be made in presenting site characteristics and describing site ancillary information. In this manner, users can use the presented information for sites of interest with similar features. This approach in a current project on the subject for Illinois streams is discussed.

Publication Year 2004
Title Methods for determining manning's coefficients for Illinois streams
Authors D.T. Soong, T.M. Halfar, M.A. Jupin, L.A. Wobig
Publication Type Conference Paper
Publication Subtype Conference Paper
Index ID 70026321
Record Source USGS Publications Warehouse