CNN's Tom Foreman explains that every state has hundreds of deficient bridges.
CNN's Erin Burnett shows surveillance video of the Washington bridge collapsing and other crumbled bridges.
Washington State bridge collapse reignites focus on nation's aging infrastructure. Dan Simon reports.
Patrick O'Donnell visits the site of a Hawaii bridge building project.
Courtesy Patrick O'Donnell
Eric Sakowski, right, and Chinese bridge engineer Shijie Du, at China's Sidhue River Bridge, the world's highest.
Courtesy Eric Sakowski
Hundreds jump off the third highest bridge in the U.S. each year at New River Gorge's Bridge Day celebration.