An accident on Interstate 70 west bound has traffic diverting onto U.S. Route 40 at the Brownstown exit. The accident is between the Vandalia 63 mm exit and the Brownstown 68 mm exit in the west bound lane and has traffic backed up in that area on the interstate. Officials are diverting westbound I-70 traffic off of the interstate and onto U.S. Route 40 at the Brownstown exit–which may also lead to slow going along Route 40 into Vandalia.