Interested parties are hereby notified that the U.S. Army Corps of Engineers, Portland District (Corps) has finalized a Finding of No Significant Impact (FONSI) for the Environmental Assessment of the Sand Island Pile Dike System repairs. The EA and FONSI were prepared in accordance with the National Environmental Policy Act (NEPA), the Council on Environmental Quality’s NEPA regulations (40 CFR §§ 1500–1508), and the Corps’ NEPA regulations (33 CFR Part 230).
The Sand Island Pile Dike System is located near East and West Sand islands, between river miles 4 and 7 on the Columbia River. Repairs are urgently needed and entail the removal of existing timber piles and subsequent replacement with steel pipe piles and enrockment. Marker piles will be placed to demark the enrockment for vessel safety. The functional repairs are anticipated to take a minimum of three construction seasons to complete and are estimated to take place between 2023 and 2025 or 2026.
Assessment of the Need for an Environmental Impact Statement: USACE has determined that the Proposed Action is not likely to result in significant impacts on the human environment, and therefore an environmental impact statement (EIS) will not be prepared. The FONSI is included with the final EA.
Environmental Document: Click each link for the final EA Library Link and FONSI Library Link.