Dutch Slough Tidal Marsh Restoration

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In a rapidly urbanizing area of California's eastern Contra Costa County, the 1,200-acre Dutch Slough project works to restore a diversity of tidal wetland and riparian habitats on a site formerly used for grazing and dairy operations. This is the first large-scale tidal wetland restoration to be planned in the Delta. It uses an adaptive management framework to test various approaches to large-scale restoration, giving CALFED and the California Bay-Delta Authority the knowledge to meet their long-term restoration goals.

ESA developed a conceptual restoration plan and feasibility study for the project. To benefit native species, the restoration plan will reestablish natural ecological processes to sustain the freshwater tidal marsh, riparian woodland, native grasslands, and coastal dune habitats on the subsided site. To share the beauty of the site, the plan accommodates public access plans for a trail system, interpretive centers, a community park, and a waterfront recreation facility. The adaptive management framework will test ESA's scientific hypotheses for restoration approaches, habitat value, and water quality.

ESA partnered with agencies and an interdisciplinary panel of scientists and technical experts to develop and implement an adaptive management plan to restore the San Francisco Bay Delta 1,200-acre site.

Specialized Services

  • Design specifications and construction bid packages
  • Fisheries habitat enhancement
  • Geomorphic assessments
  • Habitat restoration and enhancement
  • Hydrologic and hydraulic modeling
  • Sediment transport studies
  • Wetland restoration