The Bush administration refused to fund repairing it after it was declared structurally unsound in 2005. Like the folks in the Twin Towers, those killed on the bridge were killed by George Bush's incompetence and corruption.
That's what happened.
It is also interesting, in a 'post 9/11 world', critical 'corridor' bridges, were NOT under constant scrutiny for structural soundness and security. To protect life, limb and big business.
I am so glad to hear that big business is REALLY chipping in to help the workers. With Granola bars and plastic chairs. That is REALLY nice. Target is throwing in some shirts.
I do have a cheaper suggestion here. Perhaps those businesses could outsource themselves and eliminate the need for rebuilding. Move the college into the FEMA trailers.