The preliminary design for the new Interstate 35W bridge over the Mississippi River will be unveiled tomorrow. The Minnesota Department of Transportation isn't revealing much about the new design other than to confirm that the bridge will have ten lanes. The public will get a chance to comment on the design at a meeting in Roseville Thursday. But MnDOT Communications Director Lucy Kender acknowledges that the public may not have much say in the final plan. She says federal emergency funds limit the design choices.