Seattle is a city full of interesting and architecturally signifigant bridges.

Here is a list of all of the ones I know about.

NameImageYear OpenedTypeLengthSpansCarriesCoordinates
Arboretum Sewer Trestlebridgec.1913Arch180 ft (55 m)Lake Washington Boulevard ESewer and a footpath47.63952°N 122.29724°W
Ballard Bridgebridge1917Bascule2,854 ft (870 m)Salmon Bay15th Avenue NW47.65980°N 122.37622°W
Cowen Park Bridgebridge1936Arch358 ft (109 m)A ravine in Cowen Park15th Avenue NE47.67338°N 122.31178°W
First Avenue South Bridgebridge1956Bascule300 ft (91 m)Duwamish RiverState Route 9947.54231°N 122.33443°W
Fremont Bridgebridge1917Bascule242 ft (74 m)Fremont CutRoad connecting Fremont Avenue N and 4th Avenue N47.64750°N 122.34967°W
George Washington Memorial Bridge (Aurora Bridge)bridge1932Cantilever and truss2,945 ft (898 m)Lake UnionState Route 9947.57112°N 122.35366°W
Homer M. Hadley Memorial Bridgebridge1989Floating pontoon5,811 ft (1,771 m)Lake WashingtonInterstate 9047.58984°N 122.26942°W
Jeanette Williams Memorial Bridge (West Seattle Bridge)bridge1984Cantilever2,607 ft (705 m)Duwamish RiverRoad connecting Fauntleroy Way SW and the Spokane Street Viaduct47.57094°N 122.35033°W
Jose Rizal Bridge (12th Ave South Bridge)bridge1911Truss arch420 ft (130 m)S Dearborn Street and Interstate 9012th Avenue S and Interstate 9047.59584°N 122.31728°W
Lacey V. Murrow Memorial Bridgebridge1993Floating pontoon6,620 ft (2,020 m)Lake WashingtonInterstate 9047.58988°N 122.27031°W
Magnolia Bridgebridge1930Truss3,600 ft (1097 m)Filled-in tidelands of Smith CoveW Garfield Street47.63344°N 122.38255°W
Montlake Bridgebridge1925Bascule344 ft (105 m)Lake Washington Ship CanalState Route 51347.6473°N 122.30468°W
North Queen Anne Drive Bridgebridge1936Arch238 ft (73 m)Wolf CreekN Queen Anne Drive47.64206°N 122.35238°W
Salmon Bay Bridgebridge1914Bascule and truss200 ft (61 m)Salmon BayBNSF Railway47.66680°N 122.40213°W
Ship Canal Bridgebridge1962Truss4,429 ft (1,350 m)Portage BayInterstate 547.65309°N 122.32252°W
Schmitz Park Bridgebridge1936Rigid frame175 ft (53 m)A ravine in Schmitz ParkSW Admiral Way47.57731°N 122.40310°W
Spokane Street Bridgebridge1991Swing480 ft (150 m)Duwamish RiverSW Spokane Street47.57138°N 122.35336°W
SR 520 Albert D. Rosellini Evergreen Point Floating Bridgebridge2016Floating pontoon7,708 ft (2,350 m)Lake WashingtonState Route 52047.64051°N 122.26019°W
20th Avenue NE Bridgebridge1913Arch354 ft (108 m)A ravine in Ravenna Park20th Avenue NE (pedestrian access only)47.67189°N 122.30632°W
University Bridgebridge1919Bascule218 ft (66 m)Portage BayEastlake Avenue NE47.65309°N 122.32010°W