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SIMULATION OF FLOOD HYDROGRAPHS FOR GEORGIA STREAMS.

Transportation Research Record

By:
and

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Abstract

Flood hydrographs are needed for the design of many highway drainage structures and embankments. A method for simulating these flood hydrographs at urban and rural ungauged sites in Georgia is presented. The O'Donnell method was used to compute unit hydrographs from 355 flood events from 80 stations. An average unit hydrograph and an average lag time were computed for each station. These average unit hydrographs were transformed to unit hydrographs having durations of one-fourth, one-third, one-half, and three-fourths lag time and then reduced to dimensionless terms by dividing the time by lag time and the discharge by peak discharge. Hydrographs were simulated for these 355 flood events and their widths were compared with the widths of the observed hydrographs at 50 and 75 percent of peak flow. For simulating hydrographs at sites larger than 500 mi**2, the U. S. Geological Survey computer model CONROUT can be used.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
SIMULATION OF FLOOD HYDROGRAPHS FOR GEORGIA STREAMS.
Series title:
Transportation Research Record
Year Published:
1986
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Transportation Research Record
First page:
15
Last page:
23