Gilpin Construction
Multnomah Channel Bridge (Multnomah County, Oregon)Built 1948
Through truss bridge over Multnomah Channel on FAS A668 in Portland
Replaced by a new bridge in June 2008
North Yamhill River Bridge (Yamhill County, Oregon)Contractor, 1921
Deck truss bridge over North Yamhill River on Southbound OR 99W
Open to traffic
Sellwood Bridge (Multnomah County, Oregon)Contractor, 1925
Deck truss bridge over Willamette River on Tacoma Street in Portland
Open to traffic
St. Johns Bridge (Multnomah County, Oregon)Built 1931
Suspension bridge over Willamette River on US 30 Bypass in Portland
Open to traffic
Yale Bridge (Clark County, Washington)Built 1932
Suspension bridge over Lewis River on WA 503
Open to traffic
Yaquina Bay Bridge (Lincoln County, Oregon)Built 1934
Steel through arch bridge over Yaquina Bay on US 101 in Newport
Open to traffic