At I-35W, Engineers Develop Bridge-Collapse Scenario.

The article presents an update on the investigation into the collapse of the bridge in Minneapolis, Minnesota, on August 1, 2007. It states that engineers probing the disaster are anxious to disclose their findings, but federal officials with the National Transportation Safety Board are just as eager to keep them quiet until the review is complete. Several sources suggest engineers are looking at the stress that seized bearings, construction loads, truss corrosion and hot summer weather placed on gusset plates that were underdesigned from the beginning.