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Public Notice Availability of Draft Integrated Feasibility Report and Environmental Assessment for the Charleston Marina Navigation Improvements Coos County, Oregon Section 107 of the Continuing Authorities Program > Portland District > Public Notices

Excerpt:
"This study was conducted under the Continuing Authorities Program, Section 107 of the River and Harbor Act of 1960, as amended (33 U.S.C. 577), which authorizes USACE to plan and implement small navigation projects.
Alternatives were developed to address the navigational hazards in the Charleston Marina caused by shoaling at a breakwater. Alternatives were evaluated by looking at extensions to the Federal Navigation Channel and depths that aligned with the existing -16’ depth of the existing Charleston Access Channel. 

The Recommended Plan is to realign and extend the Federal Navigation Channel (FNC) to the western edge of the fuel dock, a distance of approximately 315 feet. The recommended depth of the extension is -16 ft MLLW, to be consistent with the existing FNC. The recommended bottom width is 60 ft, in compliance with EM 1110-2-1615 (Hydraulic Design of Small Boat Harbors, 1984), for vessels with good to very good controllability. The side slopes will be no steeper than 2V:1H and a minimum 50 foot offset from existing infrastructure shall be maintained. 

USACE has prepared a draft EA for the proposed action in accordance with the National Environmental Policy Act (NEPA) and Council on Environmental Quality and  USACE NEPA implementing regulations that were applicable at the time of preparation. 

USACE has made a preliminary determination that the effects of the proposed action would not be significant and that the preparation of an Environmental Impact Statement (EIS) is not warranted. Following public review,  USACE will make a final determination on whether to make a Finding of No Significant Impact (FONSI)."