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Hydrological Impacts of Urbanization: White Rock Creek, Dallas Texas

This research project concerns changes in hydrology resulting from urbanization of the upper sub-basin of the White Rock Creek Watershed in Collin and Dallas Counties, Texas. The objectives of this study are: to calculate the percent watershed urbanized for the period of 1961 through 1968 and the period of 2000 through 2005; to derive a 1960s average unit hydrograph and a 2000s average unit hydrograph; and, to use the two averaged hydrographs to develop a range of hypothetical storm scenarios to evaluate how the storm response of the watershed has changed between these two periods. Results of this study show that stormflow occurs under lower intensity precipitation in the post-urbanized period and that stormflow peaks and volumes are substantially larger compared to the pre-urbanized period. It is concluded that changes in watershed surface conditions resulting from urbanization have lowered the precipitation-intensity threshold that must be surpassed before storm run-off is generated.

Identiferoai:union.ndltd.org:unt.edu/info:ark/67531/metadc5583
Date12 1900
CreatorsVicars, Julie Anne Groening
ContributorsWilliams, Harry F. L., Atkinson, Samuel F., Acevedo, Miguel F.
PublisherUniversity of North Texas
Source SetsUniversity of North Texas
LanguageEnglish
Detected LanguageEnglish
TypeThesis or Dissertation
FormatText
CoverageUnited States - Texas - Dallas County - White Rock
RightsPublic, Copyright, Vicars, Julie Anne Groening, Copyright is held by the author, unless otherwise noted. All rights reserved.

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