LNM13-582933
Received 23 Sept 2026, 00:00 UTC
Warning text
Positions open on the mapSECTOR COLUMBIA RIVER, SUBMERGED LAND ACT (SLA) - COLUMBIA
General / Miscellaneous
The causeway that connects Bateman Island to Richland, Washington, where the Yakima River enters the Columbia River, has been removed to restore the original flow of the river. USACE is required to monitor turbidity levels at two locations in the Yakima River; the first, approximately one mile upstream from the mouth, in approximate position 46-15.26N 119-15.24W, and a second at the southern point of Bateman Island, approximately 46-14.35N 119-13.35W. The water monitoring equipment will be deployed using anchored buoys which will be yellow with a flashing yellow light every three seconds (Fl Y 3s). For more information contact Ryan Ashcraft at the USACE Walla Walla office at (509) 704-0755.
Position 46-15.27N 119-15.32W
USCG Northwest District Local Notice to Mariners 45/2026