Ind. Code § 5-28-26-7
As used in this chapter, "public facilities" includes a street, a road, a bridge, a storm water or sanitary sewer, a sewage treatment facility, a facility designed to reduce, eliminate, or prevent the spread of identified soil or groundwater contamination, a drainage system, a retention basin, a pretreatment facility, a waterway, a waterline, a water storage facility, a rail line, an electric, gas, telephone or other communications line or any other type of utility line or pipeline, or another similar or related structure or improvement, together with necessary easements for the structure or improvement. Except for rail lines, utility lines, or pipelines, the structures or improvements described in this section must be either owned or used by a public agency, functionally connected to similar or supporting facilities owned or used by a public agency, or designed and dedicated for use by, for the benefit of, or for the protection of the health, welfare, or safety of the public generally, whether or not used by a single business entity. Any road, street, or bridge must be continuously open to public access. A public facility must be located on public property or in a public, utility, or transportation easement or right-of-way.
IC 5-28-26-7