U.S. House Transportation and Infrastructure Committee: I-35W bridge collapse hearings

September 5, 2007 - U.S. Transportation committee, chaired by U.S. representative Jim Oberstar, hears witnesses on I-35W bridge collapse and the state of bridges in general. Panel 1: Structurally Deficient Bridges in the U.S. Panel 2: Calvin Scovel, US DoT, Inspector General; and Mark Rosenker, NTSB Chairman. Panel 3: R.T. Rybak, mayor of Minneapolis; and Kathleen Novak, mayor of Northglenn, CO. The segment ends with the Colorado mayor's testimony before they broke for a House vote.