The McDonnell administration’s plan to place tolls on Interstate 95 at the North Carolina border would divert truck traffic onto local roads and pass increased shipping costs on to businesses, the head of the state’s trucking association said Wednesday.

P. Dale Bennett, president and chief executive officer of the Virginia Trucking Association, said truck drivers are already mapping out how to skirt the proposal tolls, which still need federal approval. One idea: briefly leaving the interstate to cross the border on Route 301.