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Description
Scope/Content: Abstract: Introduction Since 2003, the United States has spent over $500 million in the Klamath Basin for irrigation, fisheries, National Wildlife Refuges, and other resource enhancements and management actions. Consequently, the United States, the States of California and Oregon, the Klamath, Karuk, and Yurok Tribes, Klamath Project Water Users, and other Klamath River Basin stakeholders negotiated the Klamath Basin Restoration Agreement (KBRA) and the Klamath Hydroelectric Settlement Agreement (KHSA) to resolve long-standing disputes between them regarding a broad range of natural resource issues. The KHSA, signed on February 18, 2010, describes the conditions that need to be satisfied in advance of the Secretarial Determination and lays out the process for additional studies and environmental review. The Secretarial Determination is a decision by the Secretary of the Interior regarding whether removal of four dams owned by PacifiCorp: 1) will advance restoration of the salmonid fisheries of the Klamath Basin; and 2) is in the public interest, which includes, but is not limited to, consideration of potential impacts on affected local communities and tribes. The four dams are J.C. Boyle, Copco 1, Copco 2, and Iron Gate dams on the Klamath River. The KHSA includes provisions for the interim operation of the dams and the process to transfer, decommission, and remove the dams. Facilities removal is defined as the physical removal of all or part of each of the four PacifiCorp dams to achieve, at a minimum, a free-flowing condition and volitional fish passage, site remediation and restoration (including previously inundated lands) measures to avoid or minimize adverse downstream impacts, and all associated permitting. The Secretarial Determination requires studies of dam removal effects on fish, sediment, the regional economy, and other resources. These studies are ongoing and are being conducted in coordination with the parties to the KHSA and the public. The purpose of this project is to provide digital mapping products for documenting the current site conditions for future studies. Woolpert Inc. & Watershed Sciences Inc. were contracted in 2009 to collect LiDAR and 3D breaklines for approximately 170 miles on the Klamath River from Link River Dam, OR to the confluence with Elk Creek south of Happy Camp, CA, and surveys along with above and in-water cross-sections at each of nine bridges. The scope of the project included ortho-imagery and 2 foot contour generation. The geo-spatial base map products described in this document are the 4 products of this effort and are available from the USBR Remote Sensing and Geographic Information Team based in Denver CO. As more data is produced and made available by contributing stakeholders this document and the data base that accompanies it will be updated. This document is intended to be used as an information and navigation tool. Fully compliant FGDC metadata and geodetic control results can be found within the database.
Type
text
Identifier
ark:/86086/n2k073x7 1182
Language
English eng
Subject
Dams Dam retirement
Place
Klamath, CA Klamath, OR J.C. Boyle, Copco No. 1, Copco No. 2, and Iron Gate Dams
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