Sediment Impacts on Yield from a Two-Reservoir System in Puerto Rico

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by Gregory L. Morris,

Document Type: Proceeding Paper

Part of: North American Water and Environment Congress & Destructive Water:

Abstract: The Dos Bocas and Caonillas reservoirs in Puerto Rico are being considered for conversion from hydroelectric to water supply operation. Both reservoirs are approximately 50 years old and have accumulated significant sediment volumes, and Dos Bocas will be completely filled by year 2060 if sedimentation continues at the present rate. Hydrologic simulations were undertaken to analyze the variation in yield over time from the two-reservoir system, subject to different sedimentation scenarios in each. The general principles applied in this analysis may be used for planning sediment management strategies in other interconnected systems containing multiple reservoirs subject to sedimentation.

Subject Headings: Sediment | Reservoirs | Water supply | Hydro power | Hydrology | Puerto Rico

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