Snake River Dredging to Move Forward

The U.S. Army Corps of Engineers will proceed with planned dredging of problem sediment areas in the lower Snake River on or about January 12, as a result of a favorable ruling from the U.S. District Court for the Western District of Washington in Seattle.

In a lawsuit filed by a coalition of environmental groups and the Nez Perce Tribe (Plaintiffs) the Court denied the Plaintiffs request for a preliminary injunction that would have stopped needed maintenance of the federal navigation channel and related port berthing areas. The Inland Port and Navigation Group and the Columbia Snake River Irrigators Association intervened in the lawsuit in support of the Corps.

The Corps will dredge this year in accordance with its comprehensive Programmatic Sediment Management Plan (PSMP) during the annual winter in-water work window when salmonid fish are less likely to be present in the river.

There is a current immediate need to reestablish the federal navigation channel at congressionally authorized dimensions,” said Lt. Col. Timothy Vail, Walla Walla District Commander.After consideration of potential alternatives, we determined that dredging is the only effective short-term method available for doing so once sediment has accumulated to the point of interfering with navigation.”

We view the Court’s ruling as a positive step,” Vail said. “It allows the Corps to move forward and meet its responsibilities to manage sediment accumulation to make navigation safer and to support the economy of this region.”    

Congress directed establishment of the navigation channel in the Lower Snake River at 250 feet wide by 14 feet deep at Minimum Operating Pool (MOP). USACE is responsible for maintaining the channel at those dimensions.

We take this responsibility to the public seriously, and we’ll make every effort to fulfill this mission. Dredging this year is a necessary part of that,” Vail said.

Maintenance dredging last occurred in the lower Snake River navigation channel in the winter of 2005-2006. Sediment accumulation has since encroached on certain areas of the federal navigation channel and port berthing areas.

Press Release

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3rd International Congress Hydraulic Engineering Structures and Dredging

Russia’s leading maritime industry Media Group PortNews ( holds a traditional annual Congress “Hydraulic Engineering Structures and Dredging” in Moscow. 

The two-day Congress includes the 7th International Forum of Dredging Companies and the 3rd Technical Conference “Modern Solutions for Hydraulic Engineering”.

Infrastructure development is among the real sources of Russia’s economy growth. Construction of port facilities and new hydraulic engineering structures on the country’s inland waterways constitute an essential part of all infrastructure projects. It is important to take into account the best international practices to implement these projects effectively.

The program of the Congress will be devoted to the latest technologies for dredging and hydraulic engineering works. Speakers and delegates will refer to real projects to discuss specifics features of dredging works, as well as dedicated fleet and equipment involved.

To learn more about event, please, contact the organizing committee:

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