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Book Comparison of peak discharge and runoff characteristic estimates from the rational method to field observations for small basins in central Virginia: USGS Scientific Investigations Report 2005-5254

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Comparison of peak discharge and runoff characteristic estimates from the rational method to field observations for small basins in central Virginia: USGS Scientific Investigations Report 2005-5254

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    Available in PDF - DJVU Format | Comparison of peak discharge and runoff characteristic estimates from the rational method to field observations for small basins in central Virginia: USGS Scientific Investigations Report 2005-5254.pdf | Language: ENGLISH
    Donald C. Hayes (Author), Ricahrd L. Young (Author)

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Various types of drainage structures are necessary to protect human life, highway settings, and the flood-plain environment from surface runoff. The design of a drainage structure requires hydrologic analysis of precipitation amount and duration, peak rate of runoff, and the time distribution of runoff from a given basin.

Many hydrologic methods are available for estimating peak flows from a basin, and no single method is applicable to all basins. The Rational Method is commonly used to estimate the design-storm peak discharge. The concepts of the Rational Method are sophisticated and considerable engineering knowledge is required to select representative hydrologic characteristics, such as time of concentration and runoff coefficient, which will result in a reliable design discharge. Validation of the Rational Method is difficult because direct measurement of some hydrologic characteristics, for example, time of concentration and runoff coefficient, is not easily accomplished.
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