This project will design and permit repairs to a failed weir at the site of the original 2009 Dutch Bill Creek Barrier Elimination Project near Camp Meeker, restoring fish passage for endangered coho salmon and threatened steelhead trout to upstream spawning and rearing habitat in this Russian River tributary in Sonoma County.
This project replaced a severely undersized, failing private road culvert on Upper Green Valley Creek — a Russian River tributary in Sonoma County — with a 15-foot bottomless arch culvert and a 157-foot step-pool roughened channel with boulder weirs for grade control. The culvert had blocked coho access under all flow conditions. The project opened 0.9 miles of spawning and rearing habitat, and post-construction surveys detected 136 steelhead young-of-year upstream of the site, benefiting federally endangered Central California Coast coho salmon and threatened steelhead.
This project addressed critically low dry-season flows in Grape Creek, a tributary to Dry Creek in the Russian River watershed of Sonoma County, by working with vineyard landowners to install off-stream ponds fed by groundwater and winter rainfall. This eliminated in-stream diversions that had historically reduced flows during salmon and steelhead migration periods. Additional work included fish passage barrier removal and streambank restoration, benefiting federally endangered Central California Coast coho salmon and federally threatened CCC steelhead.
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