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Title: Final Environmental Assessment : Riverside Segment 3 Levee, Omak Right Bank Federal Levee, Omak Left Bank Federal Levee, and Okanogan Sewage Treatment Plant Levee Rehabilitation, Okanogan County, Washington
Authors: United States. Army. Corps of Engineers. Seattle District
Keywords: Okanogan (Wash.)
Okanagan River (B.C. and Wash.)
Flood control
Environmental management
Environmental assessment
Publisher: United States. Army. Corps of Engineers. Seattle District.
Abstract: This EA addresses two Federal actions. The need for conducting emergency repair activities at Riverside Segment 3 levee in May 2018 has been presented in Section 1.1.2; the need for implementing a permanent repair for the four levees in 2019 has also been presented in Section 1.1. The purpose of the May 2018 work was to close the levee breach to restore some level of flood protection. However, even with the breach closure, part of the levee prism remains compromised and was not fully restored by the flood fight action due to high water level. In the damaged condition, the levee presently provides an approximate 1-year level of protection. If the levee were to fail, there would be an increased risk to life safety, improved property, and public infrastructure. The purpose of the permanent repairs are to restore the pre-damage level of flood protection exhibited prior to the 2018 flood event to protect lives and property from subsequent flooding. The completed flood fight and the proposed levee repairs addressed in this EA are the result of the local sponsor’s requests for assistance.
Description: Environmental Assessment and Finding of No Significant Impact
Rights: Approved for Public Release; Distribution is Unlimited
Appears in Collections:Environmental Documents

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