N.D. Cent. Code § 24-09-11: Overhead and underground railroad crossings may be required

The commission may require any railroad to construct and maintain overhead or underground crossings and separate grades when in its opinion the interest and safety of the public require, and may apportion the costs therefor in such manner as the commission deems proper, and no overhead or underground crossing, nor separation of grades, may be made except upon petition therefor to the commission and with the commission's approval.