News Releases

Summer recreational vessel lockage schedule begins May 14

Published May 10, 2018

PORTLAND, Ore. -- May 14 marks the start of the summer schedule for recreational boaters using navigation locks to travel past U.S. Army Corps of Engineers dams on the Columbia and Snake rivers, according to Corps navigation planners.

Corps dams with locks along the Columbia River include John Day Dam, near Rufus, Oregon; The Dalles Dam, near The Dalles, Oregon; Bonneville Dam, near Cascade Locks, Oregon; and McNary Dam, near Umatilla, Oregon.

Dams with locks along the Snake River include Ice Harbor Dam, near Burbank, Washington; Lower Monumental Dam, near Kahlotus, Washington; Little Goose Dam, near Starbuck, Washington; and Lower Granite Dam, near Pomeroy, Washington.

Starting May 14, the summer recreational vessel lockage schedule run as follows:



9 a.m.

9:30 a.m.

12 p.m.

12:30 p.m.

3 p.m.

3:30 p.m.

6 p.m.

6:30 p.m.

9 p.m.

9:30 p.m.

The summer lockage schedule applies to all eight Corps dams along the Columbia-Snake river system.

This schedule will remain in effect until Sept. 15. Recreational vessel operators have precedence over commercial vessels during the designated times. At other times, recreational vessels may be allowed to lock through with commercial craft at the discretion of the lockmaster.

Lockages outside the scheduled times will be considered for flotillas or other organized events sponsored by yacht clubs, marinas and other groups, provided 24-hour advance arrangements are made with the appropriate location. Call to schedule special lockages:

Lock and Dam

Phone number



The Dalles


John Day




Ice Harbor


Lower Monumental


Little Goose

509-399-2233 ext. 231

Lower Granite

509-843-1493 ext. 231

Everyone in the vessel must be wearing a personal floatation devise throughout the duration of the lockage. All vessel owners and operators lock through at their own risk and must comply with the Corps’ safe-lockage policy. Portland District’s navigation information and the brochure "How to Lock Through" is available at:

The Corps’ Portland and Walla Walla districts maintain about 350 miles of the federal navigation channel from Portland, Ore. to Lewiston, Idaho. Nine million tons of commercial cargo, valued around $3 billion, is transported through the lock system each year, according to navigation industry data. The Columbia-Snake navigation system is part of a larger waterborne commerce system that is vital to the economic health of the Pacific Northwest. This import/export gateway allows river transport 465 miles inland from the Pacific Ocean to Lewiston, Idaho.

Portland District’s recreational vessel lockage information is online at

Walla Walla District’s recreational vessel lockage information is online at  

Sarah P. Bennett
Portland District
Gina Baltrusch
Walla Walla District

Release no. 18-028

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