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Tacoma Narrows Bridge

Tacoma narrows bridge, looking west across Toll plaza, 29 august 1940. (Eldridge, Clark H. "Tacoma Narrows Bridge, Tacoma, Washington, Final Report on Design and Construction," 1941) (HAER WA-99-31)
image credits (ID:198844)

General Information

Completion: 1 July 1940
Status: collapsed (1940)

Project Type

Structure: Suspension bridge
Function / usage: Road bridge
Material: Steel bridge

Geographic Information & Related Structures

Location: Tacoma, Pierce County, Washington, USA
  • Puget Sound
Replaced by: Tacoma Narrows Bridge (1950)

Technical Information


main span 854 m
deck deck depth 2.4 m
deck width 11.9 m


pylons steel
deck truss steel


7 November 1940

A moderate 68 km/h wind causes oscillations and the destruction of the bridge.


This bridge has been replaced by another suspension bridge of the same dimensions on the same site. The only fatality of the collapse in a 42 mile/hour wind gust was a dog in car that could not be removed from the bridge.

Stillman Fires Collection / Prelinger Archives

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