Zachary (Zac) Corum, P.E.

Mr. Corum is a Senior Hydraulic Engineer with the Seattle District, U.S. Army Corps of Engineers (USACE), where he has served since 2001. His work focuses on numerical modeling and ecosystem restoration across planning, design, construction, and monitoring phases. He is a Registered Professional Civil Engineer in Washington State, a certified Agency Technical Reviewer (ATR) in hydraulic engineering and ecosystem restoration, and a graduate of USACE’s Leadership Development Program Levels I and II.

Since 2020, Mr. Corum has served on USACE’s Committee on River Engineering and is a Northwest Division SME for complex river engineering and ecosystem restoration projects. He also serves as a technical lead on civil works projects for ecosystem restoration and flood damage reduction, with a project portfolio ranging from Alaska to Brazil and centered in the Pacific Northwest (WA, ID, OR, MT). His work emphasizes leveraging natural processes, and the use of nature-based solutions (NNBF) in aquatic ecosystem rehabilitation and flood risk management.

Since 2005, he has designed and/or constructed several innovative restoration projects that employ engineered logjams and woody revetments to achieve traditional river engineering purposes. He has completed projects on the Green, Cedar, Skokomish, Duckabush, Dungeness, Skagit, Yakima, White and Kootenai Rivers.

Notable projects include:

• PI and Project Manager for Libby Dam “Wood is Good” project implemented through the EWN program
• Technical lead for the Duckabush Estuary, Spencer Island, and Yakima River Gap to Gap ecosystem restoration projects
• Lead hydraulic engineer and project manager for the flood risk management related projects associated with the Elwha River dam removals (led by the National Park Service)
• Lead hydraulic engineer for the Green River gravel and large wood nourishment project
• Technical lead on woody debris management alternatives for public ports on the Madeira River, Brazil (in support of Mobile District)
• Lead designer of the Kootenai River/Dunn Creek large wood restoration project and co-designer of the Skagit River project—both featured in the Engineering With Nature Atlas, Vol. 1

Mr. Corum is drawn to complex, dynamic river systems that challenge conventional approaches and foster innovation.

Outside of work, he enjoys watercolor painting, skateboarding, and spending time with his family and cats.

Other work experience:

1998-2000:     Civil engineer, private consulting. River hydraulics, fish passage, stormwater design, roadway design

1996-1998:      Civil engineer (hydraulics) US DOT/FHWA. River hydraulics, fish passage, bridge scour and erosion protection, sediment transport

Education: B.S Civil and Environmental Engineering, University of Washington 1996 (emphasis on water resources)