Indiana Code Title 9. Motor Vehicles § 9-21-3.5-14

(1) Fix, revise, charge, and collect tolls for the use of a private toll facility by any person, partnership, association, limited liability company, or corporation desiring the use of any part of the private toll facility, including the right of way adjoining the paved portion of the private toll facility.  For purposes of this subdivision, the use of a private toll facility includes the placement of telephone, telegraph, electric, or power lines on any part of the private toll facility.

(2) Fix the terms, conditions, and rates of charge for use of the private toll facility, including fees for nonpayment of required tolls.  However, a fee imposed for nonpayment of a required toll may not exceed fifty dollars ($50) for each unpaid toll.

(3) Collect tolls and fees through manual or nonmanual methods, including automated traffic law enforcement systems, automatic vehicle identification systems, electronic toll collection systems, global positioning systems, and photo or video based toll collection or toll collection enforcement systems.