HIGHWAY REGULATION, PROTECTION AND CONTROL REGULATIONS
Obstructions and Encroachments
236:18 Right to Air Space Above and Below Certain Highways.
The state shall have exclusive rights, insofar as they do not conflict with any federal statute, to build into, lease or utilize for any public purpose the air space directly above or below the toll highways and the interstate system highways within this state. These rights to said air space shall extend upward or downward so far as is practical and reasonable for all purposes of the state and it shall be unlawful for any person or persons to violate said air space except as allowed by the state. The department of transportation shall be responsible for the administration and enforcement of this section. Nothing in this section shall be construed as prohibiting aircraft from flying through the air space above the herein mentioned highways. Notwithstanding the foregoing, public utilities shall have the right to erect lines through said air space in accordance with the provisions of this chapter relative thereto.
Source. RSA 249:21-a. 1969, 144:1. 1981, 87:1. 1985, 402:6, I(a)(7).