Since the Interstate 35W bridge collapse, Minnesota has witnessed a witch hunt of the likes we've never seen before. Within days of the catastrophe on Aug. 1, 2007, a crowd of pundits and folks with a political ax to grind shouted for the heads of Tim Pawlenty, Carol Molnau, David Strom of the Taxpayers League of Minnesota and anyone who has ever opposed a gas tax increase.
Suddenly, every critic seemed to have an engineering degree in his back pocket. Accusations were made that Minnesota Department of Transportation inspections and maintenance were shoddy, irresponsible and done on the cheap.
Last week, the National Transportation Safety Board (NTSB) issued interim findings that should prompt the witch-hunt crowd to pack it in. (A final report is due within six months.) The "critical factor" in the collapse was a "serious design error" that dates from the bridge's construction in the mid-1960s, said NTSB chairman Mark Rosenker at a news conference.
"It is important to understand that bridge inspections would not have identified the error," Rosenker said. In fact, he said, the National Bridge Inspection Standards don't include procedures that would detect such a design flaw.
Unfortunately, the almost six-month public demonization of MnDOT -- launched before any findings were available -- has already taken a severe toll on the men and women who inspect and maintain our bridges.
For them, the toughest thing has been to see that some Minnesotans now question the bridge inspection team's dedication to the public welfare, said Dan Dorgan, state bridge engineer. "It's puzzling to us to be asked about other bridges, 'Is it safe?' Our neighbors, our kids, drive over these bridges. I guarantee that we would close a bridge if we thought it wasn't safe."
The bridge collapse and its media aftermath were "devastating for us," he said. "Everyone was turning inward, feeling the burden, asking, 'What might we have done that was wrong?'"
Supervisors and managers worked hard to "raise the spirits of inspectors and maintenance people, to reassure them 'we haven't lost faith in you' -- to try to keep people moving forward," he added.