17-063 Summer recreational vessel lockage schedule begins May 15

Published May 12, 2017

WALLA WALLA, Wash. -- Monday, May 15, 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.

The lockage schedule is the same for eight Corps dams in Walla Walla and Portland districts, making recreational vessel lockage schedules identical for the entire Columbia-Snake rivers inland navigation system.

In Walla Walla District, navigation lock facilities are available on the Columbia River at McNary Dam, near Umatilla, Ore.; and on the Snake River at Ice Harbor Dam, near Burbank, Washington.; Lower Monumental Dam, near Kahlotus, Wash.; Little Goose Dam, near Starbuck, Wash.; and Lower Granite Dam, near Pomeroy, Wash.

Portland District dams with locks on the Columbia River include John Day Dam, near Rufus, Ore.; The Dalles Dam, near The Dalles, Ore.; and Bonneville Dam, near Cascade Locks, Ore.

Recreational Lockage Schedule May 15 through Sept. 15

9 a.m.
12:01 p.m.
3 p.m.
6 p.m.
9 p.m.

9:30 a.m.
12:30 p.m.
3:30 p.m.
6:30 p.m.
9:30 p.m.

This schedule will remain in effect until Sep. 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.

Lockage 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:


The Dalles

John Day


Ice Harbor

Lower Monumental

Little Goose
509-399-2233 ext. 231

Lower Granite

All vessel owners and operators lock through at their own risk, and must comply with the Corps’ safe-lockage policy. Walla Walla District’s recreational vessel lockage schedule, the Corps safety policy and the brochure, "How To Lock Through," are on the Internet at www.nww.usace.army.mil/Missions/Navigation.aspx .

Portland District’s navigation information is also available online at www.nwp.usace.army.mil/Missions/Navigation.aspx.

The Corps’ Walla Walla and Portland districts maintain about 350 miles of the federal inland navigation channel from Portland, Ore. to Lewiston, Idaho. The Columbia-Snake inland 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.


Public Affairs Office

Release no. 17-063