Historic Bridges of the U.S.

Antlers Bridge (Shasta County, California)
Built 1941; rehabilitated 1967
Deck truss bridge over Sacramento River on I-5 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

Cowlitz River Bridge (Lewis County, Washington)
Built 1953
Pair of truss bridges over Cowlitz River on I-5
Open to traffic

Dog Creek Bridge (Shasta County, California)
Built 1956; rehabilitated 1989
Concrete arch bridge over Dog Creek on I-5 in Lakehead-Lakeshore
Open to traffic

East Fork Lewis River Bridge (Clark County, Washington)
Built 1936
Through truss bridge over East Fork Lewis River on I-5
Open to traffic

Galls Creek Bridge (Jackson County, Oregon)
Built 1938
Through truss bridge over Galls Creek on I-5 Frontage Road
Open to traffic

Lake Washington Ship Canal Bridge (King County, Washington)
Built 1962
Deck truss bridge over Lake Washington Ship Canal on I-5 in Seattle
Open to traffic

Lewis River Bridge (Clark County, Washington)
Built 1968
Through truss bridge over Lewis River on I-5
Open to traffic

Lewis River Bridge (Clark County, Washington)
Built 1940
Through truss bridge over Lewis River on I-5
Open to traffic

Marquam Bridge (Multnomah County, Oregon)
Built 1966, Seismic Retrofit 1996
Deck truss bridge over Willamette River on I-5 in Portland
Open to traffic

Nisqually River Bridge (Thurston County, Washington)
Built 1937; rehabilitated 1982
Through truss bridge over Nisqually River on I-5
Open to traffic

Nooksack River Bridge (Whatcom County, Washington)
Built 1955
Through truss bridge over Nooksack River on I-5 in Ferndale
Open to traffic

North Umpqua River I-5 Bridge (Douglas County, Oregon)
Northbound bridge built 1955; southbound built 1964
Pair of deck truss bridges over North Umpqua River on I-5 in Roseburg North
Open to traffic

Pitt River Bridge (Shasta County, California)
Built 1941
Deck truss bridge over Shasta River and railroad tracks on I-5
Open to traffic

Sacramento River Bridge (Siskiyou County, California)
Built 1955; rehabilitated 1983
Concrete arch bridge over Sacramento River on I-5 in Dunsmuir
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

Skagit River Bridge (Skagit County, Washington)
Built 1955
Through truss bridge over Skagit River on I-5 in Mount Vernon
Open to traffic

Skookumchuck River Bridge (Lewis County, Washington)
Built 1951
Pair of truss bridges over Skookumchuck River on I-5 in Centralia
Open to traffic

South Umpqua River I-5 Bridge (Douglas County, Oregon)
Built 1965; rehabilitated 1983
Deck truss bridge over South Umpqua River on Southbound I-5
Open to traffic

South Umpqua River I-5 Bridge (Douglas County, Oregon)
Northbound bridge built 1955; southbound built 1964
Pair of deck truss bridges over South Umpqua River I-5 in Green
Open to traffic

South Umpqua River I-5 Bridge (Douglas County, Oregon)
Southbound bridge built 1955; northbound built 1976
Pair of deck truss bridges over South Umpqua River on I-5 in Roseburg
Open to traffic

Stillaguamish River Bridge (Snohomish County, Washington)
Built 1933
Through truss bridge over Stillaguamish River on I-5
Open to traffic

Toutle River Bridge (Cowlitz County, Washington)
Built 1969
Steel through arch bridge over Toutle River on I-5
Open to traffic