Shoal Creek Flood Control Plan Austin, Texasby Duke G. Altman, Espey, Huston & Associates Inc, Austin, TX, USA,
William H. Espey, Espey, Huston & Associates Inc, Austin, TX, USA,
Ramon F. Miguez, Espey, Huston & Associates Inc, Austin, TX, USA,
Abstract: Following the devastating 1981 Memorial Day flood, a comprehensive and innovative flood control plan was developed and implemented for Austin's Shoal Creek Watershed. The 12 million plan funded by City bond elections is comprised of a combination of property acquisition, bridge and channel improvements as well as regional-type detention ponds. Utilization of Northwest Park as an off-channel/high-flow detention pond, while enhancing its recreational function, provides an essential element of the watershed's overall flood control plan. A watershed model developed with the HEC-1 program was utilized in the overall planning process. To assess existing flood conditions as well as analyze various flood control alternatives, the HEC-1 and HEC-2 programs were applied in a variety of innovative ways. The interactions of existing hydrologic conditions and proposed flood control projects were closely considered in developing a project sequencing plan that prevents potential increases in flooding along the watercourse during, and after, plan implementation.
Subject Headings: Floods | Watersheds | Shoals | Hydrologic models | Computer models | Detention basins | Innovation | North America | Texas | United States | Austin (Texas)
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