Seattle District > Missions > Civil Works > Locks and Dams > Chittenden Locks

HOT INFO!

-The 4th extended closure, scheduled for February to April 2021, has been cancelled and the large lock will remain open at that time.

March 22-27, 2021
Stoney Gate Valve Project warranty inspection

The large chamber will close to all vessel traffic 5:30 a.m. March 22, and remain closed until 5:00p.m., March 27.

The closure is necessary for a warranty inspection for the Stoney Gate Valve Replacement Project, during which time officials will dewater the large lock and do a final check on the work that had been done.
November 9-24, 2021
Annual Maintenance

This is the standard annual maintenance closure.

November 8-22, 2022
Annual Maintenance

This is a projected closure for standard annual maintenance.
November 7-23, 2023
Annual Maintenance

This is a projected closure for standard annual maintenance.

March 7-21, 2022
Annual Maintenance

This is the standard annual maintenance closure.
March 6-20, 2023
Annual Maintenance

This is a projected closure for standard annual maintenance.