PUGET SOUND - SHILSHOLE BAY
General / Miscellaneous
Hiram M. Chittenden Locks will close the Small Locks from 06:00, 07 DEC 2026 to 18:00, 18 JAN 2027, to conduct installation of components for the Emergency Closure System (ECS). During this time, the Large Lock will be available for lockings vessels. Further closure information is posted on USACE website: https://www.nws.usace.army.mil/Missions/Civil-Works/Locks-and-Dams/Chittenden-Locks/Operations/
Position 47-39.93N 122-23.85W
USCG Northwest District Local Notice to Mariners 45/2026