Eklutna River Aquatic Ecosystem Restoration Technical Report
Eklutna River Aquatic Ecosystem Restoration Technical Report Eklutna River Eklutna, Alaska November 2011 AQUATIC ECOSYSTEM RESTORATION TECHNICAL REPORT EKLUTNA RIVER EKLUTNA, ALASKA November 2011 EKLUTNA RIVER – ECOSYSTEM RESTORATION REPORT, ANCHORAGE, ALASKA EXECUTIVE SUMMARY The Alaska District, U.S. Army Corps of Engineers (USACE) and the Native Village of Eklutna (non-Federal sponsor) participated in an initial analysis of a potential aquatic ecosystem restoration project on the Eklutna River in Eklutna, Alaska. The proposed project was authorized under Section 206 of the Water Resources Development Act of 1996, P.L. 104-303. Section 206 authorizes the restoration of degraded aquatic ecosystem structure, function, and dynamic processes to a less degraded, more natural condition. The primary intent of the proposed project was to improve rearing habitat, over-wintering habitat, and passage for anadromous fish. True restoration of the Eklutna River ecosystem would require removal of both dams at a cost estimated to be well beyond the funding limits on the 206 authority, and that would leave the majority of the Municipality of Anchorage without a water and electrical power supply. Therefore, the restoration project was scaled down to a project that could be achieved within the 206 authority. This modified project focuses on the lower reaches of the Eklutna River below the lower dam. However, because there is no sponsor willing to provide the cost share to carry the project to the completion of planning and design, the following is a technical report rather than a more detailed 206 Ecosystem Restoration report. As such, this technical report does not incorporate an environmental assessment (EA) into the evaluation of the measures considered and the alternatives analyzed.
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