Tacoma Narrows Bridge: Key Dimensions

Current Twin Spans (1950 & 2007)

The Tacoma Narrows Bridge crosses the Tacoma Narrows strait of Puget Sound, connecting Tacoma to the Kitsap Peninsula.

SpecificationValue
Total Length5,970 ft (1,820 m)
Main Span2,800 ft (853 m)
Height Above Water (at center)180 ft (55 m)
Deck Width (per bridge)39 ft (12 m) – 2 lanes + shoulder
Total Lanes (both bridges)4 (2 each direction)
Tower Height (above water)510 ft (155 m)

The 1940 "Galloping Gertie" collapse led to the current aerodynamic designs. The 2007 parallel bridge doubled capacity.

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