Tidal flow has been restricted from the West River Marsh between Routes 1 and 34 in New Haven, Connecticut for the better part of this century. This has resulted in drier, less saline conditions within West River Memorial Park. Additional impacts to the system include placement of fill on the marsh surface and urban development along the borders and throughout the watershed. Changes in hydrology and the addition of fill have degraded the habitat and changed the system from a tidally flushed salt marsh to a poorly-drained, brackish wetland dominated by reedgrass (Phragmites australis). Our analysis of soils and sediments indicates that West River Memorial Park was a well-developed salt marsh system prior to tidal restriction. Sediments are not contaminated with high levels of metals (Table 1), and the marsh system can be restored without negative impacts to water quality. Sediments that were placed as fill can be moved to create upland islands within the restored marsh system. This will allow for the re-establishment of salt marsh areas while creating a more diverse habitat and reducing costs of removing fill. Discussion in this chapter focuses on the soils, sediments, and water quality changes associated with the restoration of the West River Memorial Park tidal marsh.