The Dye Creek Project is located in Tehama County on the east side of the Sacramento Valley in the Mount Lassen foothills. Currently, a 158 foot-long paved road at Shasta boulevard impedes fish passage at this anadromous watershed. This road crossing in addition to undersized culverts filled with sediment underneath it creates 2-ft to 3-ft head differentials at low flow. This project aims to improve passage conditions for salmonids and make approximately 10 stream miles of non-natal rearing habitat available for winter-run Chinook salmon, spring-run Chinook salmon, and fall-run Chinook salmon that have all been documented just below the barrier (Maslin et al. 1997). The project would also improve passage conditions for adult and juvenile steelhead/rainbow trout that have been documented in the upper watershed (Crain and Moyle 1997) and for adult fall-run Chinook salmon that are assumed to spawn below the barrier.