Hydraulic Design of Pamo Dam Spillwayby Charles V. Logie, Dames & Moore, San Francisco, CA, USA,
John H. Rahe, Dames & Moore, San Francisco, CA, USA,
Abstract: The design of the emergency spillway for the San Diego County Water Authority's (SDCWA) proposed Pamo Dam is discussed. Pamo Dam is a 264-foot (80. 5 meter) high roller compacted concrete (RCC) dam for water supply purposes. The spillway is a 300-foot (91. 5 meter) wide ungated ogee control section over the maximum dam section with a converging smooth chute and a flip bucket energy dissipator. The final spillway hydraulic design was optimized through the use of a 1:60 (model:prototype) scale model. The model included spillway performance assessments, downstream scouring potential assessments, and an aeration slot for investigation of potential cavitation reduction.
Subject Headings: Hydraulic design | Spillways | Hydraulic models | Optimization models | Concrete dams | Dams | Scale models | Roller-compacted concrete | North America | California | United States | San Diego
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