This project completed construction of the levee setback at The Nature Conservancy's Port Susan Bay Preserve. The scope of the restoration project included final design, permitting, and the removal of 7,350 feet of existing dike and construction and/or augmentation of 5,000 feet of new dike to protect neighboring farmland. The project fully restored riverine and tidal processes to 150 acres of diked former tidal marsh. By doing so, we enhanced the flow of water, wood and sediment to areas outside the project area whose functions had been impaired. This project was an integral component of a larger programmatic effort to restore ecological functions to the Stillaguamish estuary, which has been modified by historical large-scale physical alterations that have reduced the capacity of the system to support estuary-dependent species. This project was a Tier 1 nearshore/estuary priority in the Stillaguamish Watershed's three-year workplan. It had a high projected benefit to salmon and a high certainty of success. By restoring full tidal prism to 150 acres, this project increased the quantity and quality of estuarine habitats for utilization by juvenile salmon, shorebirds, and other estuarine-dependent species.