Duwamish River

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1st Avenue South Bridge (NB) (King County, Washington)
Built 1956
Bascule bridge over Duwamish River on WA 99 in Seattle
Open to traffic

1st Avenue South Bridge (SB) (King County, Washington)
Built 1996
Bascule bridge over Duwamish River West on Southbound WA 99 in Seattle
Open to traffic

BNSF - Duwamish River Bridge (King County, Washington)
Built 1928
Single leaf bascule bridge over Duwamish River on BNSF Railroad
Open to traffic

Duwamish River Bridge (King County, Washington)
Built 1949
Through truss bridge over Duwamish River on 42nd Avenue S in Tukwila
Open to traffic

Grant Street Streetcar Bridge (King County, Washington)
Lost Howe through truss swing bridge over Duwamish River on 14 Street on Grant Street Electric Railway
Superstructure replaced

Oxbow Bridge (King County, Washington)
Built 1911; Draw mechanism replaced 1929; Replaced 1956
Lost Warren through truss bridge over Duwamish Waterway on 1st Avenue South
Replaced by a new bridge

PSE - Duwamish River Bridge (King County, Washington)
Lost Howe through truss bridge over Duwamish River on Puget Sound Electric Railway
Removed

Riverton Drawbridge (King County, Washington)
Built 1903 of Douglas Fir & Cedar; Closed 1919; Removed 1927
Lost Double-intersection Warren through truss swing bridge over Duwamish River on Old Military Road
Removed but not replaced

Second Spokane Street Drawbridge (King County, Washington)
Built 1907; Replaced 1917
Pratt through truss bridge over Duwamish River on Spokane Street & Streetcars
Replaced by a new bridge

South Park Bridge (Old) (King County, Washington)
Built 1931
Bascule bridge over Duwamish River on 14th Avenue South in Seattle
Demolished. Main span removed September 1, 2010.

Spokane Street Bridge (King County, Washington)
Built 1991
Swing bridge over W. Waterway of Duwamish River on SW Spokane Street in Seattle
Open to traffic

Third Spokane Street Drawbridge (King County, Washington)
Built 1917; Replaced by a new road bridge 1924, streetcar line closed 1928.
Lost Pratt through truss bridge over Duwamish River on Spokane Street & Streetcars
Replaced by a new bridge