Hydrologic Design Criteria for Dams with Equal Reliabilityby James K. Koelliker, Kansas State Univ, Manhattan, KS, USA,
Document Type: Proceeding Paper
Abstract: Appropriateness of design criteria which require using the same Antecedent Moisture Condition (AMC) throughout Kansas for sizing dams and emergency spillways was examined. AMC values which result in runoff with the same exceedance probabilities (EP) as the precipitation that caused the runoff were found to be the same for EP from 1 to 50%. The AMC value for any location in Kansas which will give a runoff event with the same EP as the design precipitation event can be related to average annual moisture deficit (MD) by AMC multiplied by 2. 62 minus 8. 56 multiplied by 10** minus **4 (MD, mm). Use of a uniform AMC value throughout the state oversizes the storage capacity of structures in extreme western Kansas by more than 50% as compared to those in extreme eastern Kansas.
Subject Headings: Hydrology | Dams | Professional societies | Runoff | Hydraulic design | Soil water | Spillways | Emergency management | Moisture | North America | United States | Kansas | Maryland
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