Hydrological Impacts of Urbanization: White Rock Creek, Dallas Texas

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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 ... continued below

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Vicars, Julie Anne Groening December 2005.

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  • Vicars, Julie Anne Groening

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Description

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.

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  • December 2005

Added to The UNT Digital Library

  • May 14, 2008, 9:10 p.m.

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  • May 6, 2016, 6:30 p.m.

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Citations, Rights, Re-Use

Vicars, Julie Anne Groening. Hydrological Impacts of Urbanization: White Rock Creek, Dallas Texas, thesis, December 2005; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc5583/: accessed October 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .