Ed Friend, USCAE: 20 Years of Lessons Learned - Looking Back on a Dam Rewarding Career
Tom Terry, USACE Risk Management Center: ALARP Design Considerations for Dams and Levees
Abstracts:
Ed Friend, USACE
20 Years of Lessons Learned - Looking Back on a Dam Rewarding Career
Geological and geotechnical engineering are rooted in observing processes and identifying trends in data. Terzaghi was a master at this concept and sadly many of his lessons have been forgotten or not learned. As a profession we need to share not only our successes, but also our failures, near misses, and stressful situations, because it is from these events where we truly learn. This presentation will depict several lessons learned from the presenter’s personal experience and lessons he has identified as key case histories that helped him throughout his career in dam geological engineering. Lessons learned will deal with differing subsurface site conditions, dewatering of problematic materials, trench stability with slurry supported excavations, stability of clay shales, the value of investigation and construction experience, and others
Thomas A. Terry, P.E., P.G., US Army Corps of Engineers, Risk Management Center, and John Kendall, US Army Corp of Engineers, Jacksonville District
ALARP Design Considerations for Dams and Levees
The presentation will begin with a short definition of what ALARP (As Low As Reasonable Practicable) is relative to life safety risk and how it applies to the design of new dam and levee facilities. The presentation will present various examples of how the authors have provided ALARP related recommendations to planning and design teams for projects based on qualitative risk assessments preformed at the planning (conceptual) stage of project development. The findings of these projects allowed life safety risk to inform the conceptual design of the projects, prior to seeking authority, and helped tailor the project such that they met the intent of risk ALARP as they enter the next phases of design and eventually construction.