The Lower Chiwawa mainstem is one of only a few remaining strongholds for Wenatchee steelhead. The correction of the 13 fish passage barriers will improve connectivity to cold, clean and complex habitat, addressing all four VSP parameters required for recovery, and helping to improve the likelihood of the continued survival of this ESA species. The 13 fish passage barriers are on tributaries to the Lower Chiwawa River, and the correction of these barriers will improve connectivity to cold, clean, and complex habitat, while maintaining and improving ecosystem functionality vital to the persistence and recovery of ESA-listed species. The culvert barriers occur on Brush Creek (1), Gate Creek (2), Grouse Creek (2), Twin Creek (2), Goose Creek (2), Pole Creek (1), and Deep Creek (3).