The Nature Conservancy (TNC) constructed the Port Susan Bay Restoration for Resiliency project to improve functionality of key ecological processes on 150 acres of estuarine tidal marsh in the Stillaguamish Delta. Work included excavating distributary channels and blind tidal channels and outlets, removing remnant dike material, and creating areas of mid and high marsh. Project goals are to increase critically-located habitat area, connectivity and diversity, improve tidal exchange, and expand freshwater distribution and residence time. Increasing functional estuary habitat will expand juvenile rearing capacity for several salmon species, including ESA-listed Chinook. Salmonids in all 3 Whidbey Basin river systems use the PSB estuary, making it highly important for Puget Sound salmon recovery. This project builds on restoration completed in 2012 (RCO projects 09-1410 & 11-1650) to restore key ecological processes to 150 ac of estuarine tidal marsh. The 2012 project set back ~7000 ft of dike. However, post-project monitoring indicated limited outlet and channel construction resulted in high salinities and channel velocities, inhibiting marsh plant establishment and fish access. Project metrics reflect only increased treatment not previously reported. The PSB project underpins work across the watershed: ensuring that the value of upstream salmon recovery projects is not lost at the estuary due to a habitat bottleneck. Similarly, these restoration actions at PSB are vital to address before planned hydrologic connection with adjacent restoration currently under development. Overall, it is part of an integrated effort by the Sustainable Lands Strategy (SLS) to advance fish, flood, and farm benefits in the watershed. In addition to the ESRP funding award of $681,678.78 and PSAR Large Cap of $13,338 included in this grant agreement, TNC also received $1,729,000 PSAR Large Cap funding to support this project (22-1063). This project agreement amount represents approximately 42% of the construction cost for this phase of the project and the restoration metrics are prorated accordingly. Additional funding secured for this project that is not listed above includes $200,000 NFWF/USFWS; $322,000 NOAA Transformational Habitat Restoration; and $350,000 Ecology/USFWS National Coastal Wetlands Grant funds.