US Army Corps of Engineers, Portland District
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News Releases
Corps warns mariners about underwater pile dikes on Columbia River - 03/20/17

PORTLAND, ORE. -- The U.S. Army Corps of Engineers advises recreational boaters and commercial mariners that recent high water levels may be concealing some pile dikes on the Columbia River. Pile dikes are frequently just below the surface during high water events and can cause serious damage to vessels attempting to transit over them.

Pile dikes, also called wing dams, are wooden structures that extend from the shore into the river. The structures have a variety of uses ranging from protecting the shore to managing the flow of the navigation channel. More information and photos of pile dikes can be found on the Corps' website at www.nwp.usace.army.mil/Missions/Navigation/Pile-dikes/.

Commercial and recreational mariners should review the Corps' channel conditions maps regularly for the locations of pile dikes and other obstacles. The maps are located at www.nwp.usace.army.mil/Missions/Navigation/surveys.aspx.

The Dalles navigation lock
The Dalles navigation lock
The Dalles Dam's navigation lock reopens to river traffic; other locks still on track with previously announced schedules (Photo) - 03/20/17

PORTLAND, Ore. -- The navigation lock at The Dalles Dam reopened to river traffic Monday afternoon, U.S. Army Corps of Engineers officials in the Portland District announced.

The Corps of Engineers is nearing the scheduled end of an extended navigation lock maintenance outage, which began Dec. 12, 2016. The coordinated 14-week-long closure has affected all eight Corps navigation locks on the Columbia and Snake rivers, during which time critical, non-routine repairs and maintenance, plus routine maintenance and scheduled improvements are being completed.

Bonneville Lock and Dam reopened on Feb. 9, as scheduled, McNary reopened Friday and John Day reopened Saturday. Lower Monumental and Lower Granite locks and dams remain scheduled to return to service at 11:59 p.m. Monday, March 20.

As previously announced in Corps news releases, Little Goose and Ice Harbor dam's navigation locks, on Washington's Snake River, cannot be returned to service by March 20 because of on-site work complications. Ice Harbor is tentatively scheduled to return their lock to service at 11:59 p.m. on March 23. Little Goose is currently estimated to reopen their lock at 11:59 p.m. on April 2.

The Corps continues to communicate and coordinate with Columbia-Snake River Navigation System users and stakeholders.

For more information about the 2016-2017 Columbia-Snake Rivers Extended Navigation Lock Outage, visit the Corps' webpage at www.nww.usace.army.mil/Missions/Navigation/FY17LockOutage.aspx.

Attached Media Files: The Dalles navigation lock
John Day Navigation Lock
John Day Navigation Lock
John Day Dam's navigation lock reopens to river traffic; other locks still on track with previously announced schedules (Photo) - 03/19/17

PORTLAND, Ore. -- The navigation lock at John Day Dam, near Rufus, Oregon, reopened to river traffic late Saturday night, U.S. Army Corps of Engineers officials in the Portland District announced.

The Corps of Engineers is nearing the scheduled end of an extended navigation lock maintenance outage, which began Dec. 12, 2016. The coordinated 14-week-long closure has affected all eight Corps navigation locks on the Columbia and Snake rivers, during which time critical, non-routine repairs and maintenance, plus routine maintenance and scheduled improvements are being completed.

Bonneville Lock and Dam reopened on Feb. 9, as scheduled, and McNary reopened Friday. The Dalles, Lower Monumental, and Lower Granite locks and dams remain scheduled to return to service at 11:59 p.m. on Monday, March 20.

As previously announced in Corps news releases, Little Goose and Ice Harbor dam's navigation locks, on Washington's Snake River, cannot be returned to service by March 20 because of on-site work complications. Ice Harbor is tentatively scheduled to return their lock to service at 11:59 p.m. on March 23. Little Goose is currently estimated to reopen their lock at 11:59 p.m. on April 2.

The Corps continues to communicate and coordinate with Columbia-Snake River Navigation System users and stakeholders.

For more information about the 2016-2017 Columbia-Snake Rivers Extended Navigation Lock Outage, visit the Corps' webpage http://www.nww.usace.army.mil/Missions/Navigation/FY17LockOutage.aspx.

Attached Media Files: John Day Navigation Lock
Corps seeks comments on Portland, Multnomah County, Oregon permit application. - 03/14/17

US Army Corps of Engineers
Portland District

The U.S. Army Corps of Engineers is seeking comments on a request by the Port of Portland to conduct work at Portland International Airport. Public Notice NWP-2005-713-5_PN is available at http://www.nwp.usace.army.mil/Missions/Regulatory/Notices/