Entiat River Preston Reach Project

Categorized Under: Environment



ICF worked closely with the Bureau of Reclamation, the Interdisciplinary Team, and Entiat Habitat and Species Conservation (HSC) to interpret data, select and design alternatives, and ultimately select preferred alternatives at multiple salmon-recovery sites.

We analyzed Reclamation’s two-dimensional hydraulic model to determine the potential for interrelated hydraulic effects between the multiple project sites. We also prepared a reach-scale geomorphic assessment to determine potential channel responses associated with each proposed restoration action. We then evaluated project alternatives on factors such as biological benefit, construction feasibility, geomorphic and hydraulic effects, cost, risk, and landowner willingness. The prioritization process used Beechie et al. 2008 as guidance.

ICF drafted concepts for each project alternative and ultimately prepared 30-percent permit-ready designs for the preferred alternative. In support of the analysis of alternatives and development of conceptual plans, ICF conducted archaeological surveys, wetland delineations, and rare plant surveys. These surveys not only aided in the analysis of project alternatives, they provided the foundation for the development of permit applications. For permitting, we prepared letters and a technical report for Section 106, Endangered Species Act (ESA) consultation documents, and a Joint Aquatic Resource Permits Application (JARPA), and we assisted the Bureau of Reclamation with National Environmental Policy Act (NEPA) documentation.

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Insight Details

Client: U.S. Department of Interior, Bureau of Reclamation (USBR)
Location: Entiat, WA

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