- This event has passed.
Large Lock Closure 1: 10/16 – 11/14/2023
October 16, 2023 @ 12:01 am - November 14, 2023 @ 11:59 pm
The U.S. Army Corps of Engineers is beginning a maintenance project to replace the center miter gates on the Large Lock chamber in the Ballard neighborhood of Seattle. This major project will require several 30-day closures to facilitate demolition, concrete construction, and installation and commissioning of the new miter gates.
There will be at least 15 days between closures to accommodate marine traffic. Additionally, the Small Lock will remain open during these periods and can pass vessels up to 123 feet long and 28 feet wide. Currently the Large Lock is scheduled to be closed to all vessel traffic during the following periods:
- 10/16/2023 through 11/14/2023
- 11/30/2023 through 12/29/2023
- 01/14/2024 through 02/12/2024
- 10/15/2024 through 11/13/2024
- 11/29/2024 through 12/28/2024
Closure dates are projected and may change as the project schedule is finalized. For each closure cycle, the Large Lock will close for no more than 30 days and will open for 15 days for vessel traffic. Boaters should check the official Locks Closure Page for current information and schedule changes. For specific questions, mariners may contact the lockmasters at (206) 297-9821.
The Large Lock is expected to be fully operational on December 29, 2024.