23 Jun 2022

43 fish die in Mud Mountain Dam fish passage facility

Two physical barrier mishaps occurred at the new Mud Mountain Dam fish passage facility June 22 and June 26, which left 42 Chinook salmon and one bull trout dead.

9 Jun 2017

Chittenden Locks hosting Fisheries Day June 17

SEATTLE – Join Corps Natural Resource Management staff for a Fisheries Day 11 a.m.-3:30 p.m. June 17 at the Hiram M. Chittenden Locks. Twenty federal, tribal, state and local governments, and other organizations and groups are scheduled to offer information and activities about salmon and other environmental aspects.

19 May 2017

Chittenden Locks help juvenile salmon on journey to Puget Sound

SEATTLE – Studies have shown it’s no easy task for juvenile salmon to make it through the Lake Washington basin to Puget Sound and one of the obstacles they must pass is the Hiram M. Chittenden Locks in Ballard. Although salmon have been navigating the 100-year-old Locks for as long as it’s been operating, studies in the 1990s indicated they were having a difficult time. The Lock’s primary passage routes were deep in the water column, not easily found by juvenile salmon which stay closer to the surface.

1 Jun 2015

Chittenden Locks to close June 2 for salt water drain inspection

SEATTLE – The Hiram M. Chittenden Locks in Ballard will close to all marine traffic 8 a.m. to noon, June 2, allowing U.S. Navy divers to inspect a saltwater drain screen structure.

14 Apr 2015

Corps installing fish passage smolt flumes at Chittenden Locks in Ballard

The Army Corps of Engineers, which operates the Hiram M. Chittenden Locks, is installing four smolt flumes in spillway gates four and five. Work begins April 14 and continues for several days.