Tacoma Narrows Bridge

Overview of the Tacoma Narrows Bridge

Location and Structure

The Tacoma Narrows Bridge consists of twin suspension bridges spanning Puget Sound’s Tacoma Narrows strait in Pierce County, Washington. These structures connect the Olympic Peninsula to the mainland and form part of State Route 16. Source 1

Current Status and Usage

A modern replacement bridge opened in 1950, handling daily commuter traffic between Tacoma and Gig Harbor. Washington State DOT manages toll collection electronically. Source 7

The 1940 Collapse and Engineering Legacy

Galloping Gertie’s Dramatic Failure

The original bridge, nicknamed “Galloping Gertie,” collapsed just four months after opening when moderate winds triggered violent twisting motions known as aeroelastic flutter. The dramatic failure was captured on film. Source 6

Impact on Bridge Design

The collapse revolutionized civil engineering by emphasizing the importance of aerodynamics. It led to mandatory wind-tunnel testing for future suspension bridges and remains a key case study worldwide. Source 2

Visiting and Crossing Today

Tolls and Travel Information

Current toll rates and payment options are available on the WSDOT website. Real-time traffic updates, camera feeds, and occasional lane closures for maintenance or emergencies are also provided. Source 9