The Snohomish River floodplain at the mouth of French Creek was a 4000-acre scrub-shrub wetland with a tidal range of about 7-feet. This wetland, which has been diked and drained for agricultural and urban use, was a rearing area for millions of juvenile Chinook and coho salmon. Now the entire flow of the 28-square mile watershed must be pumped through the dike; there are no tide gates that can be opened at low water to allow fish passage. Upstream fish passage is limited to adult coho and trout due to the design and season of operation of a fish ladder, and out-migrating juveniles must go through an electric pump. Chinook no longer use this habitat, because juveniles cannot swim into it from the river. Also, water quality in the floodplain can be lethal to salmon. This proposal is to conduct a feasibility study to investigate the extent to which rearing habitat for Chinook can be restored, how well tidal flow would alleviate water quality problems, and the extent to which tidal wetland restoration would benefit other wildlife including ducks, other migratory birds, coho salmon, steelhead, and bull trout. It will determine the acreage where present landowners would allow tidal restoration, the acreage that perhaps can be purchased to allow tidal inundation, and the technical feasibility of constructing setback dikes to allow restoration of tidal functions on participating land while fully protecting neighboring land from flooding and infrastructure from damage.