06/12/2026
Most people will never see the inside of a hydroelectric draft tube. Our team spent months prepping and working inside one, 14 miles downstream of Wenatchee, WA.
Check out the story behind this incredible rehabilitation project and the people who made it happen.
๐๐จ๐ง๐๐ซ๐๐ญ๐ ๐๐๐ก๐๐๐ข๐ฅ๐ข๐ญ๐๐ญ๐ข๐จ๐ง ๐๐ญ ๐๐จ๐๐ค ๐๐ฌ๐ฅ๐๐ง๐ ๐๐ฒ๐๐ซ๐จ๐๐ฅ๐๐๐ญ๐ซ๐ข๐ ๐๐ซ๐จ๐ฃ๐๐๐ญ: ๐๐๐ ๐
๐๐๐ญ ๐๐จ๐ฐ๐ง ๐ ๐๐ซ๐๐๐ญ ๐๐ฎ๐๐ โฌ
https://www.jfbrennan.com/blog/hydroelectric-draft-tube-concrete-rehabilitation
Inside Brennanโs complex draft tube concrete rehabilitation work at Rock Island Hydroelectric Project, performed 100 feet below the surface.