The five teams of contractors who hope to win the right to rebuild the I-35W bridge are busy working on their proposals. They have until September tenth to submit their plans to the Minnesota Department of Transportation. MnDOT is offering a large incentive package to ensure that the bridge is done by December of 2008. But there are some who wonder whether the relatively new process that will be used to rebuild the bridge will be cost effective and as scrutinized as it should be. Minnesota Public Radio's Tom Scheck reports.