Ind. Code § 8-23-8-1
The department and the highway authorities of the counties and municipalities, acting alone or in cooperation with each other or any federal agency, or state or local agency of another state having authority to participate in the construction and maintenance of highways, may plan, designate, establish, regulate, vacate, alter, improve, maintain, and provide limited access facilities for public use on all or any part of a highway whenever the department or authority that has jurisdiction over the highway determines that traffic conditions, present or future, will justify the facilities. The department or a highway authority that has jurisdiction over a highway may regulate, restrict, or prohibit the use of limited access facilities on that highway by various classes of vehicles or traffic.
IC 8-23-8-1