Expiration date: 8/15/2025
Interested parties are hereby notified that the U.S. Army Corps of Engineers, Portland District (USACE) is providing public notification of a proposed discharge of dredged material as required by the provisions of section 401 and 404 of the Clean Water Act (CWA) via the Bonneville Dam Nav Lock 1 Maintenance Dredging and Placement, CWA Section 404(b)(1) Evaluation. The Preferred Alternative is a temporary project that would address the need for the replacement of steel stoplogs with new precast, pre-stressed concrete stoplogs to meet current USACE guidance, at Bonneville Dam in the Columbia River.