Hood Canal where the Skokomish River Basin enters Anna's Bay. Recent work has restored tidal flow to the historical delta footprint.
Nearshore Strategies Data Report
Cereghino et al 2012 completed a soundwide analysis to identify and describe river delta sites in Puget Sounds as part of a nearshore ecosystem restoration strategy (using remote sensing data c. 2000-2006). The following narrative of this delta site was developed to support distribution and use of analysis results:
- The Skokomish Delta in the Hood Canal Sub-basin historically contained 852 acres of vegetated wetland along a 14 km shoreline. The delta receives flow from a 64,398 square kilometer watershed. These characteristics make this system the 8th largest delta out of 16 systems in Puget Sound.
- Simenstad et al 2011 found that this system had lost none of its vegetated tidal wetlands, and 56% of its shoreline length. Of the remaining shoreline, 76% shows some evidence of infrastructure development. In the surrounding uplands, 15% of land is estimated to have greater than 10% impervious surface. Across the watershed, 10% of land is estimated to have greater than 10% impervious surface. Based on these paramters, the site was given a degradation score of 32 out of 100, making it the 11th most degraded delta in Puget Sound. It faces a low risk of future development locally, and a low risk of development across the watershed. Approximately 42% of the watershed is currently impounded behind dams.
- The Mason Conservation District and Skokomish Indian Nation have been leading restoration, management and monitoring.
- User:Egrossman usgs has been studying sedimentparticles of clay, silt, sand, gravel, or cobble, transported by water, are called sediment. dynamics.
- File:Arcos 2012 skokomish channel stability.pdf describes historic seismic uplift that resulted in the current configuration of the river mouth and wetland complexes.
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