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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.
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.
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.
The April-June 2018 Flagship is available to view online.
Flagship April-June 2018
The April-June 2018 Flagship is available to view online.

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Latest News Releases

Corps of Engineers to begin Swinomish River dredging October 17

10/10/2018
The U.S. Army Corps of Engineers will conduct maintenance dredging in the Swinomish River beginning October 17 with an anticipated completion date of November 30.

Corps of Engineers begins Fremont cut phase 3 restoration work

10/2/2018
SEATTLE — U.S. Army Corps of Engineers Natural Resource managers will begin phase 3 restoration work along the Lake Washington Ship Canal’s Fremont Cut in October by removing 18 poplar trees in the historic colonnade. “We’ll begin planting replacement trees in spring 2019 as the next step of phase 3,” said ship canal Natural Resource Manager Connie Grant. “The new trees will be about 12-feet tall and typically grow 2 to 3 feet per year.”

Environmental review starts for Chehalis River proposal

9/28/2018
Public comments sought in first step of environmental assessment process To reduce flood risks in the state’s second-largest river system, the Chehalis River Basin Flood Control Zone District is proposing to construct a new floodwater retention structure on the Chehalis River near the town of Pe Ell in Lewis County.

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