Locks on Columbia, Snake Rivers
Navigation locks on the Columbia and Snake rivers will close for annual repairs
and maintenance March 3. They are scheduled to reopen March 18 or 25.
The U.S. Army Corps of Engineers will conduct routine annual inspections, preventive maintenance and repairs at all navigation locks on the Columbia and Snake rivers during March.
Walla Walla District dams with navigation locks include McNary Dam near Umatilla, Ore.; Ice Harbor Dam near Burbank, Wash.; Lower Monumental Dam near Kahlotus, Wash.; Little Goose Dam near Starbuck, Wash.; and Lower Granite Dam near Pomeroy, Wash.
The Portland District’s Bonneville, The Dalles and John Day navigation locks on the Columbia River.
All locks in the inland navigation system will close to recreational and commercial river traffic on at 6 a.m. March 3.
Lower Monumental, Ice Harbor, McNary and Bonneville locks are scheduled to reopen at 11:59 p.m. on Sunday, March 18.
Lower Granite, Little Goose, John Day and The Dalles are scheduled to return to service at 11:59 p.m. on March 25. The additional days at those dams are necessary to perform non-routine work which will require more time to complete than the typical two-week routine maintenance outage.
The non-routine work includes gate structural repairs, navigation lock concrete repair and equipment repair or replacement.
In the Walla Walla District, work activities may require the temporary suspension of vehicle crossings at Lower Monumental, Little Goose and Lower Granite dams on the lower Snake River in Washington to accommodate work activities during the navigation lock maintenance outage. The public will be notified about closures, if possible, in advance, but the crossing is still subject to closure at any time.
Travelers should call 1-888-DAM-INFO (1-888-326-4636) well in advance of arrival for the current dam-crossing information.
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