Karl P. Biller was a bridge designer on the Historical Columbia River Highway. Working under Oregon state bridge engineer Charles Purcell, Billner designed many of the signature spans along the Historical Highway. Billner's designs during the early years of highway construction helped influence the future of bridge design in Oregon.
Bridal Veil Creek Bridge (Multnomah County, Oregon)
Engineer, 1914Girder bridge over Bridal Veil Creek on Historical Columbia River Highway (HWY 100) in Bridal VeilOpen to traffic
Eagle Creek Bridge (Multnomah County, Oregon)
Engineer, 1914Concrete arch bridge over Eagle Creek on Service RoadOpen to traffic
East Multnomah Falls Viaduct (Multnomah County, Oregon)
Design Engineer, 1914Bridge over Rocky terrain along railroad tracks on Historical Columbia River HighwayOpen to traffic
Horsetail Creek Bridge (Multnomah County, Oregon)
Engineer, 1914Slab bridge over Horsetail Creek on Historical Columbia River HighwayOpen to traffic
Latourell Creek Bridge (Multnomah County, Oregon)
Design Engineer, 1914Concrete arch bridge over Latourell Creek on Historical Columbia River HighwayOpen to traffic
McCord Creek Bridge (Multnomah County, Oregon)
Built 1915Lost Concrete deck girder bridge over McCord Creek on Historic Columbia River Highway (US 30)Replaced by new bridge in 1997
Multnomah Creek Bridge (Multnomah County, Oregon)
Engineer, 1914Concrete arch bridge over Multnomah Creek on Historical Columbia River HighwayOpen to traffic
Oneonta Creek Bridge (Multnomah County, Oregon)
Engineer, 1914Concrete beam bridge over Oneonta Creek on Historical Columbia River HighwayOpen to traffic
Shepperds Dell Bridge (Multnomah County, Oregon)
Engineer, 1914Concrete arch bridge over Shepperds Dell on Historical Columbia River HighwayOpen to traffic
Stark Steet Bridge (Multnomah County, Oregon)
Design Engineer, 1915Concrete arch bridge over an unnamed draw on Stark SteetOpen to traffic
Stark Street Bridge (Multnomah County, Oregon)
Engineer, 1914Truss bridge over Sandy River on Stark StreetOpen to traffic
Wahkeena Creek Bridge (Multnomah County, Oregon)
Engineer, 1914Slab bridge over Wahkeena Creek (Gordon Creek) on Historical Columbia River HighwayOpen to traffic
West Multnomah Falls Viaduct (Multnomah County, Oregon)
Design Engineer, 1914Bridge over rocky terrain along railroad tracks on Historical Columbia River HighwayOpen to traffic