Roughness Coefficients in Manning's Equation as an Estimating Tool for Bankfull Discharge in Natural Channels

by James Gracie,

Document Type: Proceeding Paper

Part of: WRPMD'99: Preparing for the 21st Century


(No paper) This paper compares the results of Annable's work to the roughness coefficients by stream type given in Rosgen (1994) as well as some additional coefficients from the eastern United States; and presents some caveats in using Mannings Equation in estimating bankfull discharge for the purpose of selecting a design discharge for restoration work.

Subject Headings: Ecological restoration | Water discharge | Stream channels | Hydraulic roughness | Hydraulic design | River bank stabilization | Scour | United States

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