Tim Abbe, PhD, PEG, PHG
Principal Geomorphologist

Tim is an internationally recognized professional engineering geologist and hydrogeologist known for pioneering engineered logjam design and methodology throughout world river systems. Over the last 24 years, he has worked on sites throughout North America, the Hawaiian Islands, Haiti, and Bolivia and has led major valley scale restoration projects, such as the restoration of the Elwha River floodplain prior to and post the largest dam removal project in history. He is the principal author of state and federal guidelines on channel migration and wood in rivers, and is currently working on climate change implications to river and coastal systems in the Western United States. He is a part time lecturer at the University of Washington and regularly teaches professional workshops on river, estuarine, and coastal processes and restoration. During his free time, you’ll find him riding horseback with his family on their ranch in Port Angeles, Washington or paddling the rivers of Alaska.