# List of bridges in Seattle

Download coordinates as:
* KML
* GPX (all coordinates)
* GPX (primary coordinates)
* GPX (secondary coordinates)
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. 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.
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. 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 30 feet (9.1 m). The westernmost crossing of the ship canal is the Ballard Bridge.
Floating bridges carry Interstate 90 and State Route 520 across Lake Washington to the Eastside suburbs. 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, is the longest floating bridge in the world. 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.
West Seattle is on a peninsula separated from downtown by the Duwamish River. The West Seattle Bridge is the primary roadway crossing the river. The neighborhood's Spokane Street Bridge is the world's first and only hydraulically operated concrete double-leaf swing bridge.

## List of bridges

* Key: Year opened
* *: Listed in the National Register of Historic Places
* †: Listed as a city landmark
| Name (Alternative names in parentheses) | Year opened | Type | Length | Spans | Carries | Coordinates |
| Arboretum Sewer Trestle | c.1913*† | Arch | 180 ft (55 m) | Lake Washington Boulevard E | Sewer and a footpath | 47°38′22″N 122°17′50″W﻿ / ﻿47.63952°N 122.29724°W﻿ / 47.63952; -122.29724 |
| Ballard Bridge (15th Avenue Bridge) | 1917* | Bascule | 2,854 ft (870 m) | Salmon Bay | 15th Avenue W/15th Avenue NW | 47°39′35″N 122°22′34″W﻿ / ﻿47.65980°N 122.37622°W﻿ / 47.65980; -122.37622 |
| Cowen Park Bridge | 1936*† | Arch | 358 ft (109 m) | A ravine in Cowen Park | 15th Avenue NE | 47°40′24″N 122°18′42″W﻿ / ﻿47.67338°N 122.31178°W﻿ / 47.67338; -122.31178 |
| First Avenue South Bridge | 1956 | Bascule | 300 ft (91 m) | Duwamish River | State Route 99 | 47°32′32″N 122°20′04″W﻿ / ﻿47.54231°N 122.33443°W﻿ / 47.54231; -122.33443 |
| Fremont Bridge (Fremont Avenue Bridge) | 1917*† | Bascule | 242 ft (74 m) | Fremont Cut | Road connecting Fremont Avenue N and 4th Avenue N | 47°38′51″N 122°20′59″W﻿ / ﻿47.64750°N 122.34967°W﻿ / 47.64750; -122.34967 |
| George Washington Memorial Bridge (Aurora Bridge) | 1932*† | Cantilever and truss | 2,945 ft (898 m) | Lake Union | Aurora Avenue N (State Route 99) | 47°34′16″N 122°21′13″W﻿ / ﻿47.57112°N 122.35366°W﻿ / 47.57112; -122.35366 |
| Homer M. Hadley Memorial Bridge (Third Lake Washington Bridge) | 1989 | Floating pontoon | 5,811 ft (1,771 m) | Lake Washington | Interstate 90 | 47°35′23″N 122°16′10″W﻿ / ﻿47.58984°N 122.26942°W﻿ / 47.58984; -122.26942 |
| Jeanette Williams Memorial Bridge (West Seattle Bridge) | 1984 | Cantilever | 2,607 ft (705 m) | Duwamish River | Road connecting Fauntleroy Way SW and the Spokane Street Viaduct | 47°34′15″N 122°21′01″W﻿ / ﻿47.57094°N 122.35033°W﻿ / 47.57094; -122.35033 |
| Jose Rizal Bridge (12th Avenue South Bridge) | 1911* | Truss arch | 420 ft (130 m) | S Dearborn Street and Interstate 90 | 12th Avenue S | 47°35′45″N 122°19′02″W﻿ / ﻿47.59584°N 122.31728°W﻿ / 47.59584; -122.31728 |
| Lacey V. Murrow Memorial Bridge | 1993 | Floating pontoon | 6,620 ft (2,020 m) | Lake Washington | Interstate 90 | 47°35′24″N 122°16′13″W﻿ / ﻿47.58988°N 122.27031°W﻿ / 47.58988; -122.27031 |
| Magnolia Bridge | 1930 | Truss | 3,600 ft (1097 m) | Filled-in tidelands of Smith Cove | W Garfield Street | 47°38′00″N 122°22′57″W﻿ / ﻿47.63344°N 122.38255°W﻿ / 47.63344; -122.38255 |
| Montlake Bridge (Eastlake Bridge) | 1925*† | Bascule | 344 ft (105 m) | Lake Washington Ship Canal | Montlake Boulevard E/Montlake Boulevard NE (State Route 513) | 47°38′50″N 122°18′17″W﻿ / ﻿47.6473°N 122.30468°W﻿ / 47.6473; -122.30468 |
| North Queen Anne Drive Bridge | 1936† | Arch | 238 ft (73 m) | Wolf Creek | Queen Anne Drive | 47°38′31″N 122°21′09″W﻿ / ﻿47.64206°N 122.35238°W﻿ / 47.64206; -122.35238 |
| Salmon Bay Bridge | 1914† | Bascule and truss | 200 ft (61 m) | Salmon Bay | BNSF Railway | 47°40′00″N 122°24′08″W﻿ / ﻿47.66680°N 122.40213°W﻿ / 47.66680; -122.40213 |
| Ship Canal Bridge | 1962 | Truss | 4,429 ft (1,350 m) | Portage Bay | Interstate 5 | 47°39′11″N 122°19′21″W﻿ / ﻿47.65309°N 122.32252°W﻿ / 47.65309; -122.32252 |
| Schmitz Park Bridge | 1936*† | Rigid frame | 175 ft (53 m) | A ravine in Schmitz Park | SW Admiral Way | 47°34′38″N 122°24′11″W﻿ / ﻿47.57731°N 122.40310°W﻿ / 47.57731; -122.40310 |
| Spokane Street Bridge | 1991 | Swing | 480 ft (150 m) | Duwamish River | SW Spokane Street | 47°34′17″N 122°21′12″W﻿ / ﻿47.57138°N 122.35336°W﻿ / 47.57138; -122.35336 |
| SR 520 Albert D. Rosellini Evergreen Point Floating Bridge (Evergreen Point Floating Bridge, 520 Bridge) | 2016 | Floating pontoon | 7,708 ft (2,350 m) | Lake Washington | State Route 520 | 47°38′26″N 122°15′37″W﻿ / ﻿47.64051°N 122.26019°W﻿ / 47.64051; -122.26019 |
| 20th Avenue NE Bridge (Ravenna Park Bridge) | 1913*† | Arch | 354 ft (108 m) | A ravine in Ravenna Park | 20th Avenue NE (pedestrian/bicycle access only) | 47°40′19″N 122°18′23″W﻿ / ﻿47.67189°N 122.30632°W﻿ / 47.67189; -122.30632 |
| University Bridge | 1919* | Bascule | 218 ft (66 m) | Portage Bay | Eastlake Avenue E/Eastlake Avenue NE | 47°39′11″N 122°19′12″W﻿ / ﻿47.65309°N 122.32010°W﻿ / 47.65309; -122.32010 |
| South Park Bridge | 2014 | Bascule | | Duwamish River | 14th/16th Avenue South | 47°31′45″N 122°18′50″W﻿ / ﻿47.5293°N 122.314°W﻿ / 47.5293; -122.314 |

### Demolished or defunct bridges

| Name (Alternative names in parentheses) | Year opened | Year closed | Type | Length | Spanned | Carried | Replacement | Coordinates |
| Alaskan Way Viaduct | 1953 | 2019 | Viaduct | 11,088 ft (3,380 m) | Alaskan Way | State Route 99 | SR 99 Tunnel | 47°36′14″N 122°20′18″W﻿ / ﻿47.6040°N 122.3382°W﻿ / 47.6040; -122.3382 |
| Fairview Avenue North Bridge | 1948 (west) 1963 (east) | 2019 | Timber-pile bridge | | mudflats in Lake Union | Fairview Avenue N | Fairview Avenue N | 47°37′52″N 122°19′40″W﻿ / ﻿47.6312°N 122.3278°W﻿ / 47.6312; -122.3278 |
| Fremont Bridge (c. 1891) | 1890 | 1911 | Trestle | | Fremont Cut | Road connecting Fremont Avenue N and 4th Avenue N | Fremont Bridge (1911) | 47°38′51″N 122°20′59″W﻿ / ﻿47.6475°N 122.3497°W﻿ / 47.6475; -122.3497 |
| Fremont Bridge (1911) | 1911 | 1914 | Trestle | | Fremont Cut | Road connecting Fremont Avenue N and 4th Avenue N | Fremont Bridge | 47°38′51″N 122°20′59″W﻿ / ﻿47.6475°N 122.3497°W﻿ / 47.6475; -122.3497 |
| Governor Albert D. Rosellini Bridge—Evergreen Point (Evergreen Point Floating Bridge, 520 Bridge) | 1963 | 2016 | Floating pontoon | 7,578 ft (2,310 m) | Lake Washington | State Route 520 | Evergreen Point Floating Bridge (2016) | 47°38′26″N 122°15′39″W﻿ / ﻿47.6405°N 122.2609°W﻿ / 47.6405; -122.2609 |
| Grant Street Bridge | 1886 | c. 1910 | Timber-pile bridge | 2,640 ft (805 m) or 5,280 ft (1,609 m) | Duwamish River and Elliott Bay mudflats | Primary thoroughfare from S Jackson Street to South Seattle | Seattle Boulevard (later Airport Way S) | |
| Grant Street Electric Railway Bridge | before 1891 | ? | Wooden truss bridge | | Duwamish River | Grant Street Electric Railway | South Park Bridge | 47°18′53″N 122°11′06″W﻿ / ﻿47.3146°N 122.1851°W﻿ / 47.3146; -122.1851 |
| Latona Bridge | 1891 | 1919 | Primarily cantilevered timber | 100 ft (30 m) | Narrow point of north west Lake Union | Seattle Electric Company (original) General traffic (after completion of second span) | University Bridge | 47°39′09″N 122°20′32″W﻿ / ﻿47.6525°N 122.3421°W﻿ / 47.6525; -122.3421 |
| Post Avenue Bridge | 1890 | 2017 | Timber-pile bridge | 240 ft (73 m) | Elliott Bay waterfront | Post Avenue | Post Avenue | 47°36′12″N 122°20′10″W﻿ / ﻿47.6032°N 122.3362°W﻿ / 47.6032; -122.3362 |
| South Park Bridge | 1931 | 2010 | Bascule | 1,285 ft (392 m) | Duwamish River | 14th/16th Avenue S | New South Park Bridge | 47°31′45″N 122°18′50″W﻿ / ﻿47.5293°N 122.314°W﻿ / 47.5293; -122.314 |
| Stone Way Bridge | 1911 | 1918 | Trestle | 2,700 ft (823 m) | Lake Union | Stone Way | Fremont Bridge | 47°38′47″N 122°20′37″W﻿ / ﻿47.6463°N 122.3437°W﻿ / 47.6463; -122.3437 |
| 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 | 47°38′27″N 122°22′53″W﻿ / ﻿47.6408°N 122.3813°W﻿ / 47.6408; -122.3813 |
| West Seattle Bridge c. 1900 | c. 1900 | c. 1911 | "swinging gate" | | Duwamish River | (unnamed, future route of Spokane Street); water main | West Seattle Bridge c. 1911 | |
| West Seattle Bridge c. 1911 (Spokane Street Bridge) | c. 1911 | c. 1918 | Swing bridge | | Duwamish West Waterway | Spokane Street; water main | West Seattle Bridge c. 1918 | |
| West Seattle Bridge c. 1918 (Spokane Street Bridge) | c. 1918 | 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) | 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) | 1930 | 1989 | Bascule | | Duwamish West Waterway | Spokane Street | West Seattle Bridge (1984) and Spokane Street Bridge | |