Broadway Bridge (Portland, Oregon)

The Broadway Bridge is a Rall-type bascule bridge spanning the Willamette River in Portland, Oregon, United States, built in 1913. It was Portland's first bascule bridge, and it continues to hold the distinction of being the longest span of its bascule design type in the world. It was added to the National Register of Historic Places in November 2012.

Broadway Bridge
Coordinates45°31′55″N 122°40′26″W
CarriesVehicles, Portland Streetcar and pedestrians
CrossesWillamette River
LocalePortland, Oregon
Maintained byMultnomah County
ID number06757
Characteristics
DesignTruss with double-leaf Rall-type bascule lift span
Total length1,742 ft (531 m)
Width70 ft (21 m)
Longest spanFixed: 297 ft (91 m)
Double-leaf bascule:
278 ft (85 m)
Clearance above13 ft (4.0 m)
Clearance below90 ft (27 m) at center:31 (when bascule span is closed)
History
DesignerRalph Modjeski
OpenedApril 22, 1913
Broadway Bridge
U.S. National Register of Historic Places
LocationPortland, Oregon; Willamette River at river mile 11.7
Coordinates45°31′55″N 122°40′26″W
MPSWillamette River Highway Bridges of Portland, Oregon
NRHP reference No.12000930
Added to NRHPNovember 14, 2012
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