Climatic Adjustments of Natural Resource Conservation Service (NRCS) Runoff Curve Numbers
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2003-10-01
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Alternative Title:Climatic Adjustments of Natural Resource Conservation Service (NRCS) Runoff Curve Numbers: Final Report [Project Title from Cover]
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Edition:Final Report
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Abstract:The purpose of this report is to present results and recommendations from Project Number 0-2104, Climatic Adjustments of Natural Resource Conservation Service (NRCS) Runoff Curve Numbers. The literature was reviewed for previous research pertinent to the project. Several other studies had been conducted that, while dealing with curve numbers, were not directly transferable to the subject project. However, they did provide important technology for the development of project curve numbers and the means to provide adjustments to the curve number to reflect Texas hydrology. Based on the literature and computations involving some 1600 measured rainfall-runoff events, a map was developed that can be used by TxDOT hydraulic designers to adjust the runoff curve number by geographic location. It is recommended that the tool become a part of the hydraulic design process, but not to the exclusion of other tools available to the designer.
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