This is the first full week of work on the new $234 million I 35W bridge. Flatiron/Manson is under contract to get the bridge up and carrying traffic by December 24th, 2008. But the cost and the challenges of building a new bridge don't end with concrete and steel. State, local and federal officials have to deal everything from lost parking spots to threats to the pearly eyed mussel. And almost everything affected by the bridge collapse and bridge reconstruction has a price tag. Minnesota Public Radio's Tom Scheck reports.