Conn. Gen. Stat. § 13a-80f: Acquisition of land or air space.

The Commissioner of Transportation may acquire by purchase or condemnation, in the same manner and with like powers as authorized and exercised by said commissioner in acquiring real property for state highway purposes, such additional interests in land or air space, and may accept gifts of interests in land or air space, as he shall find necessary or appropriate to make feasible or enhance the multiple use and joint development of highway rights-of-way and space over or under state highways under his control.