Every heliport or helistop built at ground level shall have a hard surfaced or grassed area, be provided with good drainage and be free of dust, gravel or other loose material. It shall be not less in length, width or diameter than twice the overall length of any helicopter landing or taking- off. In no instance shall this area be smaller than 100 feet in diameter or in length of the shortest dimension of a rectangular area. This area shall be free of trees, wires or other obstructions, reserved for the exclusive use of landing or taking-off of helicopters and enclosed with a permanent fence at least three feet high.
Rooftop heliports or helistops shall be a minimum of forty feet in diameter or in length of the shortest dimension of a rectangular area and shall be designed and constructed so that the building will support the dead load of the structure, plus the actual weight of the heaviest loaded helicopter to be used.
A rooftop heliport or helistop must be designed to support concentrated loads on any one square foot equal to three-quarters of the gross weight of the heaviest helicopter to be accommodated.
The structural design of all buildings supporting a heliport or helistop shall be in accordance with the Building Code unless otherwise specified in this chapter.
(Ord. 1969-169. Passed 7-16-70.)