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BRASS Modeling of Lo?za Reservoir, Puerto Rico, for Sediment Management Operations

by Gregory L. Morris, Morris & Assoc, San Juan, United States,
Raul Col?n, Morris & Assoc, San Juan, United States,
Robert Laura, Morris & Assoc, San Juan, United States,
G. T. Anderson, Morris & Assoc, San Juan, United States,



Document Type: Proceeding Paper

Part of: Water Resources Planning and Management: Saving a Threatened Resource?In Search of Solutions

Abstract:

Loiza reservoir, the principal water supply for metropolitan San Juan, delivers 3.5 m³/s (80 mgd) to the Sergio Cuevas filter plant. Sedimentation has reduced the capacity of the 25.3?10⁶ m³ reservoir by 43% since construction in 1953. To limit future sediment accumulation, reservoir levels will be lowered during storms to route flood-borne sediments through the nearly-empty impoundment, and the pool will be refilled with runoff from the recession portion of the hydrograph.

Subject Headings: Sediment | Reservoirs | Computer models | Runoff | Hydraulic models | Flood routing | Water supply | Puerto Rico | United States | Caribbean

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