Tacoma Narrows Bridge history

https://www.wsdot.wa.gov/TNBhistory/
The website provides information on the design, engineering, and people responsible for the fateful 1940s bridge known as “Galloping Gertie,” the 1950s replacement, and the addition in 2007 of the parallel eastbound bridge. The site includes lesson plans developed for grades 1-4 in Social Studies, Math, Science, and Language Arts for educators.

This site was developed during the construction of the 2007 Narrows Bridge. It's been preserved for the historical value, but some of the information provided was outdated by the completion of the 2007 Bridge.