Ind. Code § 8-10-1-1
In order to promote the agricultural, industrial, and commercial development of the state and to provide for the general welfare by the construction and operation, in cooperation with the federal government, or otherwise, of a modern port system with terminal facilities to accommodate water, rail, truck, air-borne, and other forms of transportation, the ports of Indiana is hereby authorized and empowered to construct, maintain, and operate, in cooperation with the federal government, or otherwise, at such locations as shall be approved by the governor, projects, including without limitation public ports with terminal facilities and traffic exchange points throughout Indiana for all forms of transportation, giving particular attention to the benefits which may accrue to the state and its citizens from all forms of transportation, and issue revenue bonds of the state payable solely from revenues to pay the cost of such projects. The ports of Indiana's powers are not limited to ports and may be exercised throughout Indiana for projects that enhance, foster, aid, provide, or promote economic development, public-private partnerships, and other industrial, commercial, business, and transportation purposes.
IC 8-10-1-1