D.C. Code § 9-509
All railroads other than street railroads shall pay to the District of Columbia for the lighting, under the direction and control of the Mayor of the District of Columbia, of the public roads, streets, avenues, and alleys, for their full width, through which their tracks may be laid, for the length of the street occupied by the said tracks, whether the said tracks be laid above, below, or at grade; as well as for the lighting of the subways and bridges over or under which the tracks of said railroads pass; and in default of payment of such bills, actions at law may be maintained by the District of Columbia against said railroads or their successors, transferees, or lessees therefor; provided, that nothing herein shall be held to repeal § 9-508.
D.C. Code § 9-509
Bridges, lighting, see § 9-301. .