(INDIANA CAPITAL CHRONICLE) — Gov. Mike Braun’s administration has proposed charging $15.60 in tolls to drive a car across Indiana on Interstate 70 in order to pay for widening all of that highway to six lanes.

The state’s application seeking federal approval for I-70 tolling and outlining $6.5 billion in improvements was released Monday by Braun’s office after a public records request by the Indiana Capital Chronicle.

The prospect of additional tolling...