This is a pretty remarkable 4-year time-lapse video of the construction of a new spillway as part of the Calaveras Dam replacement project. [Source: SFWater Power and Sewer YouTube Channel via Hat tip to my buddy Wayne Harrison. Thanks, Wayne!. Image: YouTube]
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New Dams Being Considered to Handle West’s Water Needs
An article in the Seattle Post Intelligencer discusses how the era of building massive dams that ended in the late 1960s with the completion of Glen Canyon Dam may be on its way to a resurgence because of booming populations throughout the west and a desperate need for water. This comes at a time when the USBR and other agencies are in the process of tearing down some dams. Of course the environmental hurdles and opposition to new dam projects will likely kill many of the projects before they get started. But in the absence of any kind of limits on population growth, there may not be many other options. Read on to see where major dam projects are being considered. (Photo by Molas)
Rockfall Protection Videos from G.T.S.
More videos! French Company G.T.S. has posted some great videos on rockfall protection systems on their YouTube channel. I don’t speak French, so I can’t give you any more info on the company (although their website looks like it has plenty of info!). But the videos cover the preparation of, drilling for, and installation or rockfall protection fences and barriers as well as a couple of general rockfall ones. They just have video with background music, so no worries about a language barrier. You can watch the installation video below.