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
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Project Summary
2016
Completion Date
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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SGH developed a seismic design procedure for the domes and peer reviewed the tank designs. We used the procedure to design a number of tanks constructed in high seismic regions.