Supplemental Environmental Assessment And Finding of No Significant Impact
Depoe Bay Maintenance Dredging
Depoe Bay, Lincoln County, Oregon
Issue Date: 1 JUNE 2021
Interested parties are hereby notified that the U.S. Army Corps of Engineers, Portland District (USACE) has finalized the Depoe Bay Maintenance Dredging Supplemental Environmental Assessment (SEA) in Lincoln County, Oregon and signed a Finding of No Significant Impact (FONSI). The SEA 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 action analyzed in the SEA is maintenance dredging of the Depoe Bay Catch Basin located behind the South Depoe Bay Creek Sediment Check Dam and supplements the Environmental Assessment (EA), dated June 30, 2015, that disclosed maintenance dredging activities for the Depoe Bay entrance channel, boat basin, and catch basin; however, did not include dewatering operations or material placement at a newly identified upland placement site. The Corps revised the Proposed Action to include options of dewatering material from the Depoe Bay Catch Basin prior to dredging and transporting it via truck to an upland site approximately two miles away.
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 SEA. The final SEA also includes a summary of comments received on the Draft SEA.
Environmental Document: Click each link for the final SEA and FONSI.