Newport Beach, CA
Indian Valley Reservoir
Scope/Solutions
The Indian Valley Reservoir provides long-term irrigation storage and flood control. A 2010 inspection report recommended seismic analyses of the floodgates and control structure to confirm the gates could be raised following a earthquake. SGH evaluated the seismic performance of the two structures.
SGH assessed the expected performance of the structures in a maximum design earthquake when the reservoir water level is at its maximum level under normal operating conditions. Highlights of our work include the following:
- Developed finite element models of the reinforced concrete control structure and steel radial arm tainter gates
- Evaluated the control structure for uncracked and cracked conditions
- Analyzed the gates for both downstream and cross-steam loading
- Compared the anticipated demands to the structures’ capacities
- Concluded a maximum design earthquake should not cause deformations or damage that would prevent the gates from opening
Project Summary
Solutions
Repair & Rehabilitation
Services
Structures | Advanced Analysis | Performance & Code Consulting
Markets
Infrastructure & Transportation
Client(s)
Sage Engineers, Inc.
Specialized Capabilities
Marine & Civil Works | Roofing & Waterproofing | Computational Mechanics
Key team members

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The San Francisco Bay Area Water Emergency Transportation Authority undertook the Downtown San Francisco Ferry Terminal Expansion Project to upgrade the terminal facilities and expand ferry service, including travel from San Francisco to Richmond and Treasure Island.