(620 ILCS 25/3)
(from Ch. 15 1/2, par. 48.3)
"Airport hazard" means any structure or tree or use of land which
obstructs the airspace required for the flight of aircraft in landing or
taking-off at an airport or is otherwise hazardous to such landing or
taking-off of aircraft.
(Source: Laws 1945, p. 317.)