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Apple Valley North/South St. Vrain Creek Rehabilitation

The South St. Vrain Creek Rehabilitation project mitigated current and future flooding risks associated with a river that was devastated and partially relocated by the 2013 floods. Iron Woman was the construction partner to design and build the Apple Valley North project for the SSV Watershed Coalition under the NRCS – CWCB EWP and HUD Department of Local Affairs (DOLA) programs. Approximately 1.25 miles of river were restored using a process‐based approach focused on long‐term resiliency, the protection of life and property, and ecological lift through the provision of improved hydrology and hydraulics, increased species richness, and restoration of native fish‐friendly habitat.  Specifically, the project included sediment removal to establish floodplain connection and increase riparian habitat, bank stabilization to reduce erosion and sediment loading and increase water quality, and revegetation to control spread of weeds and to help stabilize the floodplain. The project included final design and construction of minor channel realignments, in‐channel structure installation such as boulder‐riffle structures, floodplain structures (floodplain benching, etc.), aquatic habitat enhancements, erosion control structures, bank stabilization structures, earthwork, and revegetation including seeding, cuttings, and container stock. Approximately 1789 large containerized woody riparian plants, 2076 small containerized herbaceous riparian plants, 2044 woody riparian cuttings, and 265 pounds of pure live seed were incorporated into the project.



Client
South St. Vrain Watershed Coalition
Owner

South St. Vrain Watershed Coalition