Detecting, Monitoring, and Repairing Voids Beneath Spillway Slabs: Agenda

Background
- Potential Failure Modes associated with voids underneath spillways
- Theory, application, and design of defensive measures
- Field exploration approaches and non-destructive techniques for detecting and monitoring voids
- Interim risk reduction measures and repairs
Q&A Session 1
Merrit Dam Case Studies
- Background/History of void concerns
- Void mitigation and continued erosion
- Temporary risk reduction
Vallecito Dam Case Studies
- Background/History of void concerns
- Spillway void investigations
- Temporary risk reduction
Hyrum Dam Case Studies
- Background/History of void concerns
- Spillway void investigations
- Temporary risk reduction
Summary/Recap slide
Q&A Session 2