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Eightmile Dam Rebuild & Restoration Project Draft Environmental Impact Statement

DRAFT FOR PUBLIC COMMENT Comment on this draft
Publication number Date Published
23-12-007April 2023
VIEW NOW Eightmile Dam Rebuild & Restoration Project Draft Environmental Impact Statement (Number of pages: 464) (Publication Size: 56692KB)
Note: Full Document

Part 1 -Executive Summary
(42 pages) (15MB)

P.2 - Cover through Chapter 2
(60 pages) (17MB)

P.3 - Chapters 3-10
(171 pages) (8MB)

P.4 - Chapters 11-13
(65 pages) (11MB)

P.5 - Chapters 14-20
(98 pages) (3MB)

P.6 - Appendices
(70 pages) (17MB)

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Author(s) Downes, Melissa et. al.
Description The Eightmile Dam Rebuild and Restoration Project is one of several early actions to be implemented as part of the Icicle Strategy, and as such is the first project-level environmental impact statement (EIS) undertaken in this phased review process under SEPA. The project proponent is the Icicle and Peshastin Irrigation Districts (IPID). Over the years, wildfire, storm events, ice, and flooding have damaged the Eightmile Dam structure, raising safety concerns and reducing the reservoir’s active storage capacity. The Eightmile dam infrastructure is more than 90 years old and requires substantial improvements to operate in a safe, reliable way.

In 2017, the Jack Creek Fire and subsequent reclassification of the dam to an unsatisfactory condition has accelerated the need to rebuild the dam to current standards. As a result, IPID is proposing to rebuild the dam in the same location as the existing dam. Ecology’s Office of Columbia River (OCR) has determined that this proposal to rebuild and restore the dam is likely to have a significant adverse impact on the environment, and accordingly, an EIS is required under Revised Code of Washington (RCW) 43.21C.030. Ecology OCR is the lead agency under SEPA and is leading the development of the EIS for the project in accordance with Washington Administrative Code (WAC) 197-11, SEPA Rules.
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Keywords Office of Columbia River, OCR, Icicle Creek

Executive Summary: Eightmile Dam Rebuild & Restoration Project Draft Environmental Impact Statement

Scoping Summary Report: Eightmile Dam Rebuild & Restoration Project