Historic Bridges of the U.S. | King County, Washington

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12th Avenue South Bridge
Steel arch bridge over WA 90 (Dearborn Street) on 12th Avenue S in Seattle
Open to traffic
Built 1917

14th Avenue South Bridge
Bascule bridge over Duwamish River on 14th Avenue South in Seattle
Open to traffic
Built 1931

Battery Street Tunnel
Tunnel under city streets on WA 99 in Seattle
Open to traffic
Built 1954

Cascade Stevens Highway Bridge
Through truss bridge over Miller River on Cascade Stevens Highway
Open to traffic
Built 1922

Cowen Park Ravine Bridge
Concrete arch bridge over Cowen Park Ravine on 15th Avenue NE in Seattle
Open to traffic
Built 1936

Cumberland-Kanaske Road Bridge
Concrete arch bridge over Green River on Cumberland-Kanaske Road
Open to traffic
Built 1918; rehabilitated 1955

Deshutes River Bridge
Concrete arch bridge over Deshutes River on W 4th Avenue in Olympia
Open to traffic
Built 1920

Duwamish River Bridge
Bascule bridge over Duwamish River on WA 99 in Seattle
Open to traffic
Built 1956

Duwamish River Bridge
Through truss bridge over Duwamish River on 42nd Avenue S in Tukwila
Open to traffic
Built 1949

Duwamish River West Bridge
Bascule bridge over Duwamish River West on Southbound WA 99 in Seattle
Open to traffic
Built 1996

Eastlake Avenue Bridge
Bascule bridge over Portage Bay on Eastlake Avenue NE in Seattle
Open to traffic
Built 1915

Eastlake Avenue NE Bridge
Deck truss bridge over NE Pacific Street on Eastlake Avenue NE in Seattle
Open to traffic
Built 1930

Eastlake Avenue NE Bridge
Deck truss bridge over Portage Bay on Eastlake Avenue Ne in Seattle
Open to traffic
Built 1930

Edgewick Road Bridge
Truss bridge over South Fork Snoqualmie River on Edgewick Road
Open to traffic
Built 1920

Fauntleroy Bridge
Vertical lift bridge over Puget Sound on WA 160 in Seattle
Open to traffic
Built 1957; rehabilitated 2002

Foss River Road Bridge
Pony truss bridge over Foss River on Foss River Road
Open to traffic
Built 1951

Franklin Road Bridge
Deck truss bridge over Green River on Franklin Road
Open to traffic
Built 1914; rehabilitated 1991

Fremont Bridge
Bascule bridge over Lake Washington Ship Canal on Fremont Avenue North in Seattle
Open to traffic
Built 1917

Green River Bridge
Through truss bridge over Green River on WA 18 in Lake Morton-Berrydale
Open to traffic
Built 1959

Green River Bridge
Through truss bridge over Green River on S. 3rd Avenue in Kent
Open to traffic
Built 1914; rehabilitated 1970

Green River Bridge
Cable-stayed bridge over Green River on 228 Place SE
Open to traffic
Built 1991

Green River Bridge
Deck truss bridge over Green River on WA 169
Closed to traffic as of Nov. 19, 2008 due to emergency repairs
Built 1932

Index Creek Road Bridge
Suspension bridge over South Fork Skykomish River on NE Index Creek Road in Baring
Open to traffic
Built 1930; rehabilitated 1952

Interlaken Blvd. Bridge
Concrete arch bridge over 26th Avenue on E. Interlaken Blvd. in Seattle
Open to traffic
Built 1912

Jones Road Bridge
Truss bridge over Cedar River on Jones Road
Replaced by a pre-cast concrete girder bridge in 2003
Built 1912, Replaced 2003

Kent-Des Moines Road Bridge
Through truss bridge over Green River on Kent-Des Moines Road in Kent
Open to traffic
Built 1958

Lake Union Bridge
Deck truss bridge over Lake Union on WA 99 in Seattle
Open to traffic
Built 1931

Lake Washington Blvd. Bridge
Concrete arch bridge over Lake Washington Blvd. E on pedestrian trail in Seattle
Open to traffic
Built 1910

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

McGraw Street Bridge
Concrete arch bridge over Ravine on McGraw Street in Seattle
Open to traffic
Built 1935

Mercer Island Tunnel
Tunnel on I-90 at Mercer Island
Open to traffic
Built 1989

Mill Creek Bridge
Concrete arch bridge over Mill Creek on WA 181 in Kent
Open to traffic
Built 1915

Montlake Blvd. Bridge
Concrete arch bridge over Montlake Blvd. on a pedestrian trail in Seattle
Closed to all traffic
Built 1938

Montlake Cut Bridge
Bascule bridge over Montlake Cut on WA 513 in Seattle
Open to traffic
Built 1924; rehabilitated 1999

Mount Si Road Bridge
Through truss bridge over Middle Fork Snoqualmie River on Mount Si Road in Tanner
Replaced by a NEW THROUGH TRUSS bridge in 2008
Built 1904; rehabilitated 1955, Replaced 2008-09

Mt. Baker Ridge Tunnel
Pair of tunnels under Mt. Baker Ridge on I-90 in Seattle
Open to traffic
Built 1940 and twinned in 1989

New Cascade Tunnel
Tunnel under Cascade Mountains on BNSF Railway (former Great Northern Railway)
Open to traffic
Longest rail tunnnel in the US, finished in 1929 to bypass old tunnel, switchbacks, and 1.7% grade

Newaukum Creek Bridge
Concrete arch bridge over Newaukum Creek on SE 400th Street
Open to traffic
Built 1927

Novelty Bridge
Steel through arch bridge over Snoqualmie River on NE 124th Street in Union Hill-Novelty Hill
Open to traffic
Built 2000

Old Cascade Tunnel
Abandoned tunnel under the Cascade Mountains on former Great Northern Railway
Abandoned
The Original Cascade Tunnel was finished in 1900 and was built to replace a series of 8 switchbacks used to get over the mountains. Deadliest avalanche in US history occurred March 1, 1910 at Wellington (western portal). 96 people killed.

Port Vashon Bridge
Vertical lift bridge over Puget Sound on WA 160 in Vashon
Open to traffic
Built 1957; rehabilitated 1974

Queen Anne Drive Bridge
Steel arch bridge over Ravine on N. Queen Anne Drive in Seattle
Open to traffic
Built 1935

Raging River Bridge
Concrete arch bridge over Raging River on SE 68th Street
Open to traffic
Built 1915

Raging River Bridge
Through truss bridge over Raging River on 328 Way SE in Fall City
Open to traffic
Built 1998

Salmon Bay Waterway Bridge
Bascule bridge over Salmon Bay Waterway on 15th Avenue W in Seattle
Open to traffic
Built 1917

Sammamish River Bridge
Rainbow arch bridge over Sammamish River on NE 90th Street in Redmond
Open to traffic
Built 2001

Snoqualmie River Bridge
Through truss bridge over Snoqualmie River on WA 202 in Snoqualmie
Open to traffic
Built 1931

Snoqualmie River Bridge
Truss bridge over Snoqualmie River on 394 Place SE
Open to traffic
Built 1921

South Fork Skykomish River Bridge
Through truss bridge over South Fork Skykomish River on US 2
Open to traffic
Built 1938

South Fork Skykomish River Bridge
Through truss bridge over South Fork Skykomish River on 5th Street N in Skykomish
Open to traffic
Built 1939

South Fork Snoqualmie River Bridge
Concrete arch bridge over South Fork Snoqualmie River
Open to traffic
Built 1927

South Fork Snoqualmie River Bridge
Truss bridge over South Fork Snoqualmie River
Open to traffic
Built 1920

Spokane Street Bridge
Swing bridge over W. Waterway of Duwamish River on SW Spokane Street in Seattle
Open to traffic
Built 1991

Stampede Tunnel
Tunnel under the Cascade Mountains just south of Snoqualmie Pass on BNSF (formerly Northern Pacific Railway

Tunnel opened in May of 1888, forced-air ventilation added later

Stossel Bridge
Through truss bridge over Snoqualmie River on NE Carnation Farm Road
Open to traffic
Built 1951

Taylor Creek Bridge
Pony truss bridge over Taylor Creek on Watershed Road #9
Open to traffic
Built 1910

Tolt Hill Road Bridge
Through truss bridge over Snoqualmie River on NE Tolt Hill Road
Replaced by a NEW THROUGH TRUSS bridge in 2008
Built 1922; rehabilitated 1968, Replaced 2008

Tolt River Bridge
Through truss bridge over Tolt River on WA 203 in Carnation
Open to traffic
Built 1977

US 2 Tunnel
Tunnel on US 2
Open to traffic
Built 1937

WA 99 Bridge
Concrete arch bridge over WA 99 on a pedestrian trail in Seattle
Open to traffic
Built 1933

Woodbine Way Bridge
Concrete arch bridge over Ravine on Woodbine Way in Seattle
Open to traffic
Built 1928