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Estimating runoff volumes and flood hydrographs in the Colorado River Basin, southern Utah

Water-Resources Investigations Report 76-102

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Abstract

Hydrographs of 364 floods from 18 continuous-record gaging sites in the Colorado River basin in southern Utah were used to define a single relation of flood volume to peak discharge; the standard error of estimate of that relation is 82 percent. Using the same data, a mean dimensionless hydrograph was prepared. Synthetic hydrographs may be derived for basins of 5 to 300 square miles and flood peaks of 1 to 7,000 cubic feet per second using that mean dimensionless hydrograph. A method is presented to estimate the reduction in culvert or bridge size resulting from use of storage above the structure. Reduction of structure capacity of 25 percent may be achieved by storing 4 percent of the total flood volume. (Woodard-USGS)

Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Estimating runoff volumes and flood hydrographs in the Colorado River Basin, southern Utah
Series title:
Water-Resources Investigations Report
Series number:
76-102
Edition:
-
Year Published:
1976
Language:
ENGLISH
Publisher:
U.S. Geological Survey,
Description:
iv, 18 p. :ill., map ;28 cm.