Ashland Creek Bridge (Jackson County, Oregon)
Built 1911Concrete arch bridge over Ashland Creek on OR 99 in AshlandOpen to traffic
Caveman Bridge (Josephine County, Oregon)
Built 1927Rainbow arch bridge over Rogue River on Southbound US 199 in Grants PassOpen to traffic
Charlie Creek Bridge (Shasta County, California)
Built 1925, Deck modified for the construction of Shasta Dam circa 1940Concrete arch bridge over Charlie Creek on Lake Shore Drive in Lakehead-LakeshoreOpen to traffic
Columbia River Interstate Bridge (Multnomah County, Oregon)
Northbound bridge built 1917; southbound bridge built 1958Pair of vertical lift bridges over the Columbia River on I-5 between Vancouver and Portland in PortlandOpen to traffic
Coweeman River Bridge (Cowlitz County, Washington)
Built 1947Through truss bridge over Coweeman River on Kelso Drive in KelsoOpen to traffic
Doney Creek Bridge (Shasta County, California)
Built 1927, Deck modified for the construction of Shasta Dam circa 1940Concrete arch bridge over Doney Creek on Lakeshore Drive in Lakehead-LakeshoreOpen to traffic
Dry Gulch Bridge (Siskiyou County, California)
Built 1929Concrete arch bridge over Dry Gulch on CA 263Open to traffic
Gold Hill Bridge (Jackson County, Oregon)
Built 1927; rehabilitated 1947Concrete arch bridge over Rogue River on OR 99 at Gold HillOpen to traffic
Harlan D. Miller Bridge (Shasta County, California)
Built in 1927 as part of the Pacific Highway (U.S. 99) abandoned when I-5 was constructed through the area.Open-spandrel arch bridge over Dog Creek on abandoned U.S. 99 AlignmentClosed to all traffic
Harrisburg Bridge (Linn County, Oregon)
Built 1925; rehabilitated 1976Through truss bridge over Willamette River on OR 99E in HarrisburgOpen to traffic
Jacob Conser Bridge (Marion County, Oregon)
Built 1933Rainbow arch bridge over Santiam River on HWY 164Open to traffic
Klineline Bridge (Clark County, Washington)
Built 1928; rehabilitated 1956, Replaced 2008Concrete tee beam bridge over Salmon Creek on NE HWY 99 in Salmon CreekReplaced by a new bridge in 2008
LaCenter Bridge (Clark County, Washington)
Built 1923, Replaced by pre-cast girder bridge 2001Lost Arch bridge over East Fork Lewis River on La Center Road in LaCenterReplaced by new bridge
Martin Luther King Jr. Blvd Viaduct (Multnomah County, Oregon)
Built 1937, Replaced 2008-2009Stringer bridge over UPRR & Division Street on Oregon 99E in PortlandOpen to traffic
McLoughlin Boulevard Bridge (Clackamas County, Oregon)
Built 1933Steel through arch bridge over Clackamas River on OR 99E in GladstoneOpen to traffic
Meeker Drive Bridge (Cowlitz County, Washington)
Built 1952Truss bridge over Kalama River on Meeker DriveOpen to traffic
Myrtle Creek Arch Bridge (Douglas County, Oregon)
Built 1922, Rehabilitation & Widening 2007Concrete arch bridge over South Umpqua River on CR 386 in Myrtle CreekOpen to traffic
North Yamhill River Bridge (Yamhill County, Oregon)
Built 1921Deck truss bridge over North Yamhill River on Southbound OR 99WOpen to traffic
Oakland Bridge (Douglas County, Oregon)
Built 1925Deck truss bridge over Calapooya Creek on Shady Highway in OaklandOpen to traffic
Pioneer Bridge (Siskiyou County, California)
Built 1931Deck truss bridge over Shasta River on CA 263Open to traffic
Rocky Point Bridge (Jackson County, Oregon)
Built 1919Concrete arch bridge over Rogue River on OR 99Open to traffic
Shasta River Bridge (Siskiyou County, California)
Built 1931Concrete arch bridge over Shasta River on CA 263Open to traffic
South Umpqua River Bridge (Douglas County, Oregon)
Replaced 2000Lost Through truss bridge over South Umpqua River on CR 387 in DillardBuilt in 1939, Replaced by new bridge in 2000
Steinman Bridge (Jackson County, Oregon)
Built 1914Concrete deck girder bridge over OR- 273 (Old Siskiyou Highway) & Central Oregon and Pacific Railroad on OR-273 Old Siskiyou Highway (Old Hwy 99)Open to traffic
Sunny Valley Covered Bridge (Josephine County, Oregon)
Built 1920; rehabilitated 2001Covered bridge over Grave Creek on Sunny Valley LoopOpen to traffic
Toutle River Bridge (Cowlitz County, Washington)
Built 1935Truss bridge over Toutle River on Old Pacific HighwayOpen to traffic
Winchester Bridge (Douglas County, Oregon)
Built 1923Concrete arch bridge over North Umpqua River on OR 99Open to traffic
Winston Bridge (Douglas County, Oregon)
Built 1934Steel through arch bridge over South Umpqua River on Eastbound OR 42Open to traffic