US Army Corps of Engineers
Seattle District

The January-March 2019 issue is available to view online.
Flagship January-March 2019
The January-March 2019 issue is available to view online.
The U.S. Army Corps of Engineers began construction on the new $112 million Mud Mountain Dam Fish Passage Facility. Kiewit Infrastructure West Company, provided this video of them diverting the White River to isolate the left bank for demolition of the existing barrier dam to begin construction of the new project.
Flip the River Video
The U.S. Army Corps of Engineers began construction on the new $112 million Mud Mountain Dam Fish Passage Facility. Kiewit Infrastructure West Company, provided this video of them diverting the White River to isolate the left bank for demolition of the existing barrier dam to begin construction of the new project.
Seattle District fishery biologist Rafael Lopez-Gonzalez holds garter snakes above Howard Hanson Dam. Rafael is working with a team of herpetologist from U.S. Army Engineer Research and Development Center (ERDC) conducting field studies to survey for reptiles and amphibians at Mud Mountain Dam and Howard Hanson Dam.
Herpetological Survey
Seattle District fishery biologist Rafael Lopez-Gonzalez holds garter snakes above Howard Hanson Dam. Rafael is working with a team of herpetologist from U.S. Army Engineer Research and Development Center (ERDC) conducting field studies to survey for reptiles and amphibians at Mud Mountain Dam and Howard Hanson Dam.
A 62nd Airlift Wing C-17 Globemaster III aircraft carrying a 17th Field Artillery Brigade High-Mobility Artillery Rocket (HIMARS) launcher, both from JBLM, lands at the newly renovated Selah Creek Airstrip, Nov. 15. The Corps project repaired and improved the airstrip so it can now support training exercises using aircraft as large as the C-17.
First C-17 Lands at Selah Creek Airstrip
A 62nd Airlift Wing C-17 Globemaster III aircraft carrying a 17th Field Artillery Brigade High-Mobility Artillery Rocket (HIMARS) launcher, both from JBLM, lands at the newly renovated Selah Creek Airstrip, Nov. 15. The Corps project repaired and improved the airstrip so it can now support training exercises using aircraft as large as the C-17.
The White River’s 2016 Chinook salmon run numbers were the best seen in 71 years until 2017’s run.

Runs consistently averaged 1,565 in the early 2000s, but 2017’s count as of mid-October was 15,565, a 67 percent increase from 2016’s 9,347 total.
White River Chinook runs rising through collaborative efforts, operational changes
The White River’s 2016 Chinook salmon run numbers were the best seen in 71 years until 2017’s run. Runs consistently averaged 1,565 in the early 2000s, but 2017’s count as of mid-October was 15,565, a 67 percent increase from 2016’s 9,347 total.
Seattle District employees pose for a group photo June 29, 2017.
Seattle District
Seattle District employees pose for a group photo June 29, 2017.
As part of Mud Mountain Dam’s Fish Passage Facility construction near Buckley, Washington, the Corps’ 1940s-built trap and haul facility needed to temporarily close. Corps and Puyallup Tribe of Indians Fisheries employees worked alongside each other rescuing fish before the shutdown.

The team collected fish from the temporary fish ways, the ladder and trap. About 50 lampreys and between 50 and 100 juvenile salmonids were returned to the river.
Rescued Lampreys
As part of Mud Mountain Dam’s Fish Passage Facility construction near Buckley, Washington, the Corps’ 1940s-built trap and haul facility needed to temporarily close. Corps and Puyallup Tribe of Indians Fisheries employees worked alongside each other rescuing fish before the shutdown. The team collected fish from the temporary fish ways, the ladder and trap. About 50 lampreys and between 50 and 100 juvenile salmonids were returned to the river.
The sun rises as seen from the Hiram M. Chittenden Locks (Ballard Locks) March 11, 2018.
Morning view at the Locks
The sun rises as seen from the Hiram M. Chittenden Locks (Ballard Locks) March 11, 2018.

Latest News Releases

Free public Army Corps permitting sessions offered in Southwest Washington
4/15/2019
The Seattle District Regulatory Branch is holding free public information sessions in Southwest Washington this spring. The next meeting is April 26 in Vancouver, Washington....
Army Corps hosting Albeni Falls Dam public information meeting April 24
4/10/2019
Representatives from the U.S. Army Corps of Engineers are hosting a public meeting April 24 in Priest River, Idaho, to inform the public on Albeni Falls Dam operations. Topics include: spring and...
Corps revising master plans at 2 dams, seeking public input
4/9/2019
U.S. Army Corps of Engineers officials are revising the Howard A. Hanson and Mud Mountain Dams Master Plans, and seeking public input.Corps officials will also be available at three public events to...