List of bridges in Seattle

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Template:Short description Template:Use American English Template:Use mdy dates

A freeway with a smaller bridge next to it spanning a waterway to a wooded but still urbanized hillside with a city's skyline in the distance
Bridges crossing over waterways towards downtown Seattle

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The city of Seattle, Washington, United States, has multiple bridges that are significant due to their function, historical status, or engineering. Bridges are needed to cross the city's waterways and hilly topography.[1] Twelve bridges have been granted historical status by the city, federal government, or both. Seattle also has some of the only permanent floating pontoon bridges in the world.[2]

Original crossings over Seattle's mudflats were typically supported by timber piles. Lake Washington and Puget Sound are to the east and west of the city, respectively. They connect via a series of canals and Lake Union that are collectively known as the Lake Washington Ship Canal.[3] The four double-leaf bascule bridges crossing the Ship Canal are the oldest still used in the city, having opened between 1917 and 1930. The easternmost—the Montlake and University bridges—connect neighborhoods south of the canal to the University District. The Fremont Bridge crosses the center of the canal and is one of the most often raised drawbridges in the world due to its clearance over the water of only Script error: No such module "convert"..[4] The westernmost crossing of the ship canal is the Ballard Bridge.[5]

Floating bridges carry Interstate 90 and State Route 520 across Lake Washington to the Eastside suburbs.[6] The SR 520 Albert D. Rosellini Evergreen Point Floating Bridge, which opened in 2016 as the replacement for another floating bridge at the same site,[7][8] is the longest floating bridge in the world.[9][10] The Lacey V. Murrow Memorial Bridge had previously been replaced after the original span sunk in 1990 when water filled an open maintenance hatch during refurbishing. Age and the 2001 Nisqually earthquake have damaged the several other spans. The risk of future earthquakes has increased the need to replace already deteriorated bridges in the city, such as the Alaskan Way Viaduct (removal began in January 2019) and the Magnolia Bridge.[11][12]

West Seattle is on a peninsula separated from downtown by the Duwamish River. The West Seattle Bridge is the primary roadway crossing the river.[13] The neighborhood's Spokane Street Bridge is the world's first and only hydraulically operated concrete double-leaf swing bridge.[14]

List of bridges

Key: Year opened
*: Listed in the National Register of Historic Places[15]
†: Listed as a city landmark[16]
Name
(Alternative names in parentheses) 		Image Year opened Type Length Spans Carries Coordinates
Arboretum Sewer Trestle Reinforces concrete piers and arches supporting a walkway c.Script error: No such module "Check for unknown parameters".1913*†[17] Arch Template:Nts ft (55 m)[17] Lake Washington Boulevard E Sewer and a footpath Script error: No such module "Coordinates".
Ballard Bridge
(15th Avenue Bridge)		 An aging concrete and steel bridge crossing calm waters on a sunny day 1917*[18] Bascule Template:Nts ft (870 m)[19] Salmon Bay 15th Avenue W/15th Avenue NW Script error: No such module "Coordinates".
Cowen Park Bridge An art deco styled concrete bridge over a wooded ravine 1936*†[20] Arch Template:Nts ft (109 m)[20] A ravine in Cowen Park 15th Avenue NE Script error: No such module "Coordinates".
First Avenue South Bridge A bridge crossing a river in an industrial area 1956[lower-alpha 1] Bascule Template:Nts ft (91 m)[22] Duwamish River State Route 99 Script error: No such module "Coordinates".
Fremont Bridge
(Fremont Avenue Bridge)[23]		 A low and blue colored bridge spanning crossing a canal 1917*†[lower-alpha 2] Bascule Template:Nts ft (74 m)[25] Fremont Cut Road connecting Fremont Avenue N and 4th Avenue N Script error: No such module "Coordinates".
George Washington Memorial Bridge
(Aurora Bridge)[26]		 A high steel bridge 1932*†[22] Cantilever and truss Template:Nts ft (898 m)[26] Lake Union Aurora Avenue N (State Route 99) Script error: No such module "Coordinates".
Homer M. Hadley Memorial Bridge
(Third Lake Washington Bridge)		 An interstate highway crossing a lake on a floating bridge 1989[22] Floating pontoon Template:Nts ft (1,771 m)[22] Lake Washington Interstate 90 Script error: No such module "Coordinates".
Jeanette Williams Memorial Bridge
(West Seattle Bridge)[27]		 An arching concrete bridge near a port 1984[28] Cantilever Template:Nts ft (705 m)[27] Duwamish River Road connecting Fauntleroy Way SW and the Spokane Street Viaduct Script error: No such module "Coordinates".
Jose Rizal Bridge
(12th Avenue South Bridge)[29]		 A steel bridge over a roadway 1911*[30] Truss arch Template:Nts ft (130 m)[30] S Dearborn Street and Interstate 90 12th Avenue S Script error: No such module "Coordinates".
Lacey V. Murrow Memorial Bridge al=The support structures of a bridge before it continues to a section floating on water 1993[lower-alpha 3] Floating pontoon Template:Nts ft (2,020 m)[22] Lake Washington Interstate 90 Script error: No such module "Coordinates".
Magnolia Bridge A bridge spanning between residential neighborhoods through an industrial district 1930[12] Truss Template:Nts ft (1097 m)[31] Filled-in tidelands of Smith Cove W Garfield Street Script error: No such module "Coordinates".
Montlake Bridge
(Eastlake Bridge)		 A bridge with Collegiate Gothic style towers over a canal at sunset 1925*†[32] Bascule Template:Nts ft (105 m)[32] Lake Washington Ship Canal Montlake Boulevard E/Montlake Boulevard NE (State Route 513) Script error: No such module "Coordinates".
North Queen Anne Drive Bridge A steel bridge surrounded by trees 1936†[33] Arch Template:Nts ft (73 m)[33] Wolf Creek Queen Anne Drive Script error: No such module "Coordinates".
Salmon Bay Bridge A bridge supported by trusses with a section of it raised 1914†[34] Bascule and truss Template:Nts ft (61 m)[35] Salmon Bay BNSF Railway Script error: No such module "Coordinates".
Ship Canal Bridge A steel bridge with two decks crossing high above a body of water 1962[36] Truss Template:Nts ft (1,350 m)[37] Portage Bay Interstate 5 Script error: No such module "Coordinates".
Schmitz Park Bridge The bridge name ("Schmitz Park Bridge") and year ("1936") completed engraved on in concrete 1936*†[38] Rigid frame Template:Nts ft (53 m)[14] A ravine in Schmitz Park SW Admiral Way Script error: No such module "Coordinates".
Spokane Street Bridge A concrete portion of a bridge being swung over water 1991[19] Swing Template:Nts ft (150 m)[19] Duwamish River SW Spokane Street Script error: No such module "Coordinates".
SR 520 Albert D. Rosellini Evergreen Point Floating Bridge
(Evergreen Point Floating Bridge, 520 Bridge)[39]		 A long floating bridge crossing a lake in a suburban area 2016[7] Floating pontoon Template:Nts ft (2,350 m)[10] Lake Washington State Route 520 Script error: No such module "Coordinates".
20th Avenue NE Bridge
(Ravenna Park Bridge)		 A steel bridge arching over a ravine 1913*†[40] Arch Template:Nts ft (108 m)[14] A ravine in Ravenna Park 20th Avenue NE (pedestrian/bicycle access only) Script error: No such module "Coordinates".
University Bridge A concrete and steel bridge crossing over a body of water 1919*[lower-alpha 4] Bascule Template:Nts ft (66 m)[25] Portage Bay Eastlake Avenue E/Eastlake Avenue NE Script error: No such module "Coordinates".
South Park Bridge A concrete and steel bridge crossing over a body of water 2014 Bascule Duwamish River 14th/16th Avenue South Script error: No such module "Coordinates".

Demolished or defunct bridges

Name
(Alternative names in parentheses) 		Image Year opened Year closed Type Length Spanned Carried Replacement Coordinates
Alaskan Way Viaduct The Alaskan Way Viaduct 1953[41] 2019[41] Viaduct Template:Nts ft (3,380 m)[42] Alaskan Way State Route 99 SR 99 Tunnel[41] Script error: No such module "Coordinates".
Fairview Avenue North Bridge 1948 (west) 1963 (east)[43] 2019[44] Timber-pile bridge[45] mudflats in Lake Union[44] Fairview Avenue N[45] Fairview Avenue N[45] Script error: No such module "Coordinates".
Fremont Bridge (c. 1891) 1890[46] 1911[47] Trestle[46] Fremont Cut[46] Road connecting Fremont Avenue N and 4th Avenue N Fremont Bridge (1911)[46] Script error: No such module "Coordinates".
Fremont Bridge (1911) 1911[46] 1914[47] Trestle Fremont Cut[46] Road connecting Fremont Avenue N and 4th Avenue N Fremont Bridge[46] Script error: No such module "Coordinates".
Governor Albert D. Rosellini Bridge—Evergreen Point
(Evergreen Point Floating Bridge, 520 Bridge)		 A long floating bridge crossing a lake in a suburban area 1963[22] 2016[48] Floating pontoon Template:Nts ft (2,310 m)[22] Lake Washington State Route 520 Evergreen Point Floating Bridge (2016)[48] Script error: No such module "Coordinates".
Grant Street Bridge Grant Street Bridge 1886[49] c.Script error: No such module "Check for unknown parameters". 1910 Timber-pile bridge Template:Nts ft (805 m) or Template:Nts ft (1,609 m)[50][51] Duwamish River and Elliott Bay mudflats[52] Primary thoroughfare from S Jackson Street to South Seattle[49] Seattle Boulevard (later Airport Way S)[49]
Grant Street Electric Railway Bridge Grant Street Electric Railway Bridge before 1891 ? Wooden truss bridge Duwamish River Grant Street Electric Railway South Park Bridge Script error: No such module "Coordinates".
Latona Bridge Latona Bridge 1891[lower-alpha 5] 1919 Primarily cantilevered timber[53] Template:Nts ft (30 m)[53] Narrow point of north west Lake Union[53] Seattle Electric Company (original) General traffic (after completion of second span)[53] University Bridge[53] Script error: No such module "Coordinates".
Post Avenue Bridge[54] 1890[55] 2017[lower-alpha 6] Timber-pile bridge[55] Template:Nts ft (73 m)[54] Elliott Bay waterfront[55] Post Avenue Post Avenue Script error: No such module "Coordinates".
South Park Bridge File:Seattle - South Park Bridge 01.jpg 1931 2010 Bascule Template:Nts ft (392 m) Duwamish River 14th/16th Avenue S New South Park Bridge Script error: No such module "Coordinates".
Stone Way Bridge Stone Way Bridge 1911 1918 Trestle Template:Nts ft (823 m) Lake Union Stone Way Fremont Bridge Script error: No such module "Coordinates".
West Wheeler Street Bridge West Wheeler Street Bridge before 1914 1924 Trestle mudflats in Interbay W Wheeler Street, and Lawton Way (now W Armory Way) on a diagonal Magnolia Bridge Script error: No such module "Coordinates".
West Seattle Bridge[56] c.Script error: No such module "Check for unknown parameters". 1900 c.Script error: No such module "Check for unknown parameters". 1900 c.Script error: No such module "Check for unknown parameters". 1911 "swinging gate" Duwamish River (unnamed, future route of Spokane Street); water main West Seattle Bridge c.Script error: No such module "Check for unknown parameters". 1911
West Seattle Bridge[56] c.Script error: No such module "Check for unknown parameters". 1911 (Spokane Street Bridge)[57][58] Old Spokane Street Bridge. Water pipes visible on either side. c.Script error: No such module "Check for unknown parameters". 1911[57] c.Script error: No such module "Check for unknown parameters". 1918[58] Swing bridge Duwamish West Waterway Spokane Street; water main West Seattle Bridge c.Script error: No such module "Check for unknown parameters". 1918
West Seattle Bridge c.Script error: No such module "Check for unknown parameters". 1918[56] (Spokane Street Bridge)[58] Spokane Street Bridge c.Script error: No such module "Check for unknown parameters". 1918[58] 1924 Swing bridge Duwamish West Waterway Spokane Street West Seattle Bridge (1924)
West Spokane Street Bridge (1924) (Bridge No. 1; North Bridge; westbound traffic after 1930) [56] File:Seattle - Spokane Street Bridges, 1931 (48232722292).jpg 1924 1978 Bascule Duwamish West Waterway Spokane Street West Seattle Bridge (1984) and Spokane Street Bridge
West Spokane Street Bridge (1930) (Bridge No. 2; South Bridge; eastbound traffic)[59] 1930 1989 Bascule Duwamish West Waterway Spokane Street West Seattle Bridge (1984) and Spokane Street Bridge

See also

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Notes

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  1. ↑ A parallel span was built in 1996; the approaches to the original span were partially demolished and the structure was retrofitted between 1996 and 1998.[21]
  2. ↑ The city rebuilt the approaches at each end of the bridge between 2006 and 2007.[24]
  3. ↑ All but the approaches replace the original bridge, which opened in 1940 and sank in 1990.[22]
  4. ↑ Remodeled and dedicated in 1933.[19]
  5. ↑ Carried the first streetcar line across Lake Union, but converted to pedestrian, horse, and vehicle traffic when a parallel span was built for streetcars in 1901.[53]
  6. ↑ Paved with creosoted wood blocks in 1911 before being completely asphalted over in 1945.[55]

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References

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  21. ↑ Script error: No such module "citation/CS1".
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  48. ↑ a b c Script error: No such module "citation/CS1".
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  55. ↑ a b c d Script error: No such module "citation/CS1".
  56. ↑ a b Script error: No such module "citation/CS1".
  57. ↑ a b c d Script error: No such module "citation/CS1".
  58. ↑ Script error: No such module "citation/CS1".

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