Ashland Creek Bridge (Jackson County, Oregon)Built 1911
Concrete arch bridge over Ashland Creek on OR 99 in Ashland
Open to traffic
Caveman Bridge (Josephine County, Oregon)Built 1927
Rainbow arch bridge over Rogue River on Southbound US 199 in Grants Pass
Open to traffic
Charlie Creek Bridge (Shasta County, California)Built 1925, Deck modified for the construction of Shasta Dam circa 1940
Concrete arch bridge over Charlie Creek on Lake Shore Drive in Lakehead-Lakeshore
Open to traffic
Columbia River Interstate Bridge (Multnomah County, Oregon)Northbound bridge built 1917; southbound bridge built 1958
Pair of vertical lift bridges over the Columbia River on I-5 between Vancouver and Portland in Portland
Open to traffic
Coweeman River Bridge (Cowlitz County, Washington)Built 1947
Through truss bridge over Coweeman River on Kelso Drive in Kelso
Open to traffic
Dollarhide Bridge (Jackson County, Oregon)Built 1914
Concrete deck girder bridge over Cor on OR 273
Open to traffic
Doney Creek Bridge (Shasta County, California)Built 1927, Deck modified for the construction of Shasta Dam circa 1940
Concrete arch bridge over Doney Creek on Lakeshore Drive in Lakehead-Lakeshore
Open to traffic
Dr. John McLoughlin Memorial Bridge (Clackamas County, Oregon)Built 1933
Steel through arch bridge over Clackamas River on OR 99E in Gladstone
Open to traffic
Dry Gulch Bridge (Siskiyou County, California)Built 1929
Concrete arch bridge over Dry Gulch on CA 263
Open to traffic
Gold Hill Bridge (Jackson County, Oregon)Built 1927; rehabilitated 1947
Concrete arch bridge over Rogue River on OR 99 at Gold Hill
Open 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 Alignment
Closed to all traffic
Harrisburg Bridge (Linn County, Oregon)Built 1925; rehabilitated 1976
Through truss bridge over Willamette River on OR 99E in Harrisburg
Open to traffic
Hill Creek Bridge (Cowlitz County, Washington)Built 1923
Concrete stringer bridge over Hill Creek on Barnes Drive (Old Pacific Highway)
Open to traffic
Jacob Conser Bridge (Marion County, Oregon)Built 1933
Rainbow arch bridge over Santiam River on HWY 164
Open to traffic
Klineline Bridge (Clark County, Washington)Built 1928; rehabilitated 1956, Replaced 2008
Concrete tee beam bridge over Salmon Creek on NE HWY 99 in Salmon Creek
Replaced by a new bridge in 2008
LaCenter Bridge (Clark County, Washington)Built 1923, Replaced by pre-cast girder bridge 2001
Lost Arch bridge over East Fork Lewis River on La Center Road in LaCenter
Replaced by new bridge
Martin Luther King Jr. Blvd Viaduct (Multnomah County, Oregon)Built 1937, Replaced 2008-2009
Stringer bridge over UPRR & Division Street on Oregon 99E in Portland
Open to traffic
Marys River Bridge (Benton County, Oregon)Built 1933
Truss bridge over Marys River on Northbound OR 99W in Corvallis
Open to traffic
Meeker Drive Bridge (Cowlitz County, Washington)Built 1952
Truss bridge over Kalama River on Meeker Drive
Open to traffic
Molalla River Bridge (Clackamas County, Oregon)Built 1936, Made One-Way in 1963
Deck truss bridge over Molalla River on Northbound OR-99 E
Open to traffic
Myrtle Creek Arch Bridge (Douglas County, Oregon)Built 1922, Rehabilitation & Widening 2007
Concrete arch bridge over South Umpqua River on CR 386 in Myrtle Creek
Open to traffic
Myrtle Creek Bridge (Douglas County, Oregon)Built 1930
Stringer bridge over Myrtle Creek on OR-99 (Old Pacific Highway) in Myrtle Creek
Open to traffic
North Fork Lewis River Bridge (Clark County, Washington)Built 1940
Through truss bridge over North Fork Lewis River on I-5 southbound
Open to traffic
North Yamhill River Bridge (Yamhill County, Oregon)Built 1921
Deck truss bridge over North Yamhill River on Southbound OR 99W
Open to traffic
Oakland Bridge (Douglas County, Oregon)Built 1925
Deck truss bridge over Calapooya Creek on Shady Highway in Oakland
Open to traffic
Pioneer Bridge (Siskiyou County, California)Built 1931
Deck truss bridge over Shasta River on CA 263
Open to traffic
Pudding River Bridge (Clackamas County, Oregon)Built 1947
Steel through arch bridge over Pudding River on OR-99E
Open to traffic
Rock Point Bridge (Jackson County, Oregon)Built 1919
Concrete arch bridge over Rogue River on OR 99
Open to traffic
Santiam River Bridge (Marion County, Oregon)SB built 1946, NB built 1958, NB replaced 1991, SB replaced 1995
Lost steel arch bridge over Santiam River on Interstate 5
Replaced by new bridge
Shasta River Bridge (Siskiyou County, California)Built 1931
Concrete arch bridge over Shasta River on CA 263
Open to traffic
Slate Creek Bridge (Shasta County, California)Built 1927
Concrete tee beam bridge over Slate Creek on La Moine Road (Old U.S. 99) in La Moine
Open to traffic
South Umpqua River Bridge (Douglas County, Oregon)Replaced 2000
Lost Through truss bridge over South Umpqua River on CR 387 in Dillard
Built in 1939, Replaced by new bridge in 2000
Steinman Bridge (Jackson County, Oregon)Built 1914
Concrete 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 2001
Covered bridge over Grave Creek on Sunny Valley Loop
Open to traffic
Toutle River Bridge (Cowlitz County, Washington)Built 1935
Truss bridge over Toutle River on Old Pacific Highway
Open to traffic
Whitestone Bridge (Yamhill County, Oregon)Built 1938, Replaced 2002
Lost Steel stringer bridge over South Yamhill River on OR 99W
Replaced by pre-cast girder bridge in 2002
Winchester Bridge (Douglas County, Oregon)Built 1923, Rehabilitated 2008
Concrete arch bridge over North Umpqua River on OR 99
Open to Traffic
Winston Bridge (Douglas County, Oregon)Built 1934
Steel through arch bridge over South Umpqua River on Eastbound OR 42
Open to traffic
Wolf Creek Bridge (Josephine County, Oregon)Built 1921
Stringer bridge over Wolf Creek on Edgewood Road (Old US-99) in Wolf Creek
Open to traffic