The Wiley Slough Setback Levee Raise is the next phase in the Wiley Slough Estuarine Restoration project, which is a large estuary restoration project completed in 2009. During the current adaptive management phase, WDFW will complete final design and construct repairs to address levee overtopping and stability deficiencies.  The primary goal of the project was "to restore natural estuarine processes, conditions, functions and biological responses" to benefit Chinook and other fish and wildlife, and one of several project objectives was to "provide for agricultural drainage and flood protection." The project restored 161 acres of estuary by removing over one mile of existing levee, building a setback levee and installing new tidegates.  Post-project monitoring shows processes have been restored and more juvenile Chinook use the site than was anticipated.  While natural process and habitat benefits have been realized, flood and drainage outcomes have not. The tidegate, which failed immediately, was replaced and a pump station was added to offset project impacts. Setback levee deficiencies have caused flooding and damages, and could potentially result in levee failure, which would flood homes, roads and farms. Repairs are required for the local flood entity to take ownership of the setback levee and to maintain key relationships needed for broader salmon recovery efforts.  The project site is located on Fir Island at the mouth of the South Fork Skagit River.