Seattle's Morning News

Collapsed I-5 bridge characterized as functionally obsolete, fracture critical

After the collapse of the I-5 bridge over the Skagit River, it's come to the public's attention that the design of this particular bridge is described as fracture-critical, which basically means that each part of the bridge is critical to its integrity. CBS News Transportation Safety Analyst and former NTSB Chair Mark Rosenker joins Seattle's Morning News to talk about the classification.

Listen >