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The USFS changed strategies after learning that gabion weirs could not withstand high flows and bedload transport in Horse Linto Creek. The photo above shows a boulder weir installed in 1984. If boulder weirs shift during large storm events, individual boulders will still create local scour and improve fish habitat diversity. Photo courtesy Six Rivers National Forest.


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The boulder cluster above in the margins of Horse Linto Creek was installed to create habitat diversity. Photo taken in November 1984. Photo courtesy Six Rivers National Forest.


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Close up of boulder weir on Horse Linto Creek taken in November 1984. Boulder weirs trap spawning gravels above and create scour pools below. Photo courtesy of Six Rivers National Forest.


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USFS log weir constructed in 1984. Photo taken October 1984. (Sta 138+50). Large wood is a natural part of stream habitat diversity. Photo courtesy of Six Rivers National Forest.


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This series of steps was created in this reach of Horse Linto Creek to allow fish passage. The culvert also appears to be new and flat-bottomed, which is more fish friendly. Photo by Six Rivers National Forest.