Robert E. Grubbs
Isthmus Slough Bridge (Coos County, Oregon)
2011 - East Approach Reconstruction Engineer, 1931Bascule bridge over Isthmus Slough on Coos River HighwayOpen to traffic
Tioga Bridge (Douglas County, Oregon)
Lead Bridge Designer, 2013Timber through arch bridge over North Umpqua River on North Umpqua Trail ConnectorOpen to pedestrians only
Winchester Bridge (Douglas County, Oregon)
Rehabilitation Design Engineer - Approach Spans, 1923Concrete arch bridge over North Umpqua River on OR 99Open to Traffic