The Barnaby reach includes the Skagit River from the mouth of Illabot Creek downstream to the SR 530 bridge in Rockport. Historically, the river has migrated over a very broad area in this reach which has created an extensive network of sloughs, wetlands, ponds, side channels, and other off-channel habitats that provide important spawning and rearing for a variety of salmon species. Much of the land in the Barnaby reach is in conservation or public ownership, which creates a unique opportunity for management and restoration of habitat conditions across a large floodplain reach. The reach also contains the Barnaby complex, which includes Barnaby Slough and Harrison pond. This facility was originally developed by the Washington Department of Game to provide off-site rearing for hatchery steelhead, although it has not been used for several years. There are numerous places in this reach where culverts, dikes, flow control structures and other infrastructure have greatly altered flow and habitat conditions. In addition, many of these structures have not been adequately maintained so are currently creating barriers to fish passage. The purpose of this feasibility study was to evaluate the effect developments in the Barnaby reach have on fish use and habitat conditions over time, and to evaluate alternatives for improving habitat conditions, restoring natural processes, and reducing maintenance costs.