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John W. Sager
Staff Consultant
Mr. Sager has worked with Cornforth Consultants as a designer, reviewer and supervisor for the design, construction and maintenance/repair of numerous major dam and water supply projects. While at the Portland District of the Corps of Engineers, he was manager for the District's Dam Safety Program that includes 22 high hazard dams. Mr. Sager has over 44 years of experience as an Engineering Geologist, including 27 years of practice in the Pacific Northwest.
Representative projects include the following:
- Bonneville Dam Second Navigation Lock, Cascade Locks, Oregon
- Seismic Re-evaluation for Corps of Engineers Dams in the Portland District, Oregon and Southwest Washington
- Marmot and Little Sandy River Dams Removal, Sandy, Oregon
- Mount Saint Helens Sediment Retention Structure, Toutle River, Washington
- Fern Ridge Dam Dewatering, Eugene, Oregon
- Sain Creek Water Supply Tunnel Feasibility Study, Hillsboro, Oregon
- John Day Dam Navigation Lock Test Anchors, Rufus, Oregon
- Corps of Engineers Tunnels and Shafts Manual Reviews, Washington D.C.
- Soda Springs Dam Fish Passage Structure, Tokatee Falls, Oregon
- Round Butte Dam Intake Tower, Madras, Oregon
- The Dalles Dam Spillway Training Wall, The Dalles, Oregon
- Spirit Lake Tunnel, Mount Saint Helens, Washington
- Elk Creek Dam Litigation, Medford, Oregon
- Mt. Pinatubo Recovery Plan, Central Luzon, Philippines
- River Mill Dam Fish Ladder and Spillway Modification, Value Engineering, Estacada, Oregon
- Applegate Dam Seismic Evaluation, Applegate, Oregon
- Cougar Dam Intake Tower Modifications, McKenzie River, Oregon
- Bonneville Dam Slurry Cutoff Wall, Cascade Locks, Oregon
- Seven Oaks Dam Outlet Works and Gate Control Structure, San Bernardino, California
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