The U.S. Army Corps of Engineers’ Portland District has one of the nation’s most comprehensive and diversified civil works programs, covering most of Oregon and southwestern Washington.
The District operates locks and dams along the Columbia River, operates dams in the Willamette Valley for flood risk management, maintains Oregon’s coastal rivers for navigation, etc.
Their hopper dredges Yaquina and Essayons work to ensure a safe “highway” for ships and other vessels.
Here is a “by the numbers” look at what the hopper dredge crews accomplished in 2021: