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LL Anderson Dam Spillway Modification
Project Information
- Project Location:
- CO
- Status:
- Completed
- Structure Type:
- Dams & Levies
Scope Of Work
MWH Constructors was contracted to perform construction management for this dam project for the US Army Corps of Engineers, in partnership with MWH engineering’s design services. The 231-ft-high dam forms the 136,000 acre-ft French Meadows Reservoir and is part of the Middle Fork American River Project. The dam was modified to bring it into compliance with current standards, which mandated that its spillway must pass the recently increased probable maximum flood in order to eliminate the possibility of overtopping failure of the dam.
The project included many sensitive environmental constraints and accessibility challenges due to its remote location and severe weather impacts. Onsite aggregate and concrete production were among the innovative methods employed to complete the project on schedule and under budget.
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