On this week’s episode of the EcoNews Report we reflect on the tragic dam failure in Libya last month and discuss why Scott Dam on the Eel River poses similar risks. The PG&E owned dam sits right on a significant fault line, the Bartlett Spring Fault. Between its unusual engineering and a century’s worth of … Read more
On Sept. 12, storm Daniel overwhelmed two neglected dams in Libya. The flood washed away entire neighborhoods in the coastal city of Derna, killing thousands. Experts warned just last year that lack of maintenance risked failure of the dams, built in the 1970s to allow the development they destroyed. But storm Daniel brought more rain … Read more
PG&E TELLS FERC “SEISMIC RISK OF EEL RIVER DAMS GREATER THAN PREVIOUSLY UNDERSTOOD” -FERC Approves Changes to Dam Operations to Mitigate Earthquake Risks -Four Months After Request, Approval Comes Too Late to Stop Fish Kill Washington, DC – Yesterday, the Federal Energy Regulatory Commission (FERC) granted a request for a Temporary Variance to the flow requirements … Read more
Dear Friends, For the last several years, I’ve been optimistically sharing that if everything fell perfectly into place, the Eel River Dams could be out of the river by 2030. We’ve just learned that my optimistic timeline may turn out to be realistic. People like you who keep our bills paid deserve huge credit. Please … Read more
PG&E Admits Scott Dam Faces Serious Seismic Risks In a March 16, 2023 press release, PG&E has admitted that Scott Dam faces previously unacknowledged risks from seismic activity. Those risks are so great that the utility has announced that it will never again raise the gates atop Scott Dam, reducing the capacity of the Lake … Read more
Hold PG&E At Fault Underlying issues threatening Scott Dam Scott Dam’s proximity to the Bartlett Springs Fault is a major safety concern. The Bartlett Springs fault was not identified by geologists as “a regionally significant seismic source” until the 1980s, nearly sixty years after Scott Dam was constructed. Scott Dam is not only old, outdated, … Read more
Wednesday, October 27, 2021 President Marybel Batjer California Public Utilities Commission 505 Van Ness Avenue San Francisco, CA 94102 via electronic mail as feasible RE: Potter Valley Project Equipment Failure Dear President Batjer, This letter is meant to apprise you of important developments regarding PG&E’s Potter Valley Project (Project). The Project is a hydroelectric … Read more
Dams and the Consequences of Time Dam safety concerns of Scott Dam’s aging structure This year Scott Dam turned 100 years old, and as is the case with any century-old infrastructure, there are some concerns about its safety. Cape Horn Dam, 12 miles downstream, is 114 years old. Both were designed during a time when … Read more
A Much Bigger Problem – More ways poor design impacts dam safety at Scott Dam Decreased water storage, high temperatures, and evapotranspiration cause the sediment that has piled up in steep banks behind Scott Dam to dry out and slough off, threatening to irreparably clog the ‘needle valve’ which is the only way to release … Read more
Between a Rock and Management Priorities – Immense Pressure on Scott Dam’s Questionable Foundation Of the many safety concerns at Scott Dam, the first we featured in our blog series was the uncertain quality of the bedrock and redesigned dam as discussed in Part 1: Design – What’s Wrong With This Picture? In this post … Read more