An emergency helistop, in compliance with helistop requirements of U.F.C., Article 24 and Sacramento fire department standards, shall be provided for every highrise building in which there are habitable floors above one hundred fifty (150) feet in height.
All helistops shall be designed as required by the Department of Transportation, Federal Aviation Administration, Helicopter Design Advisory Circular 150/5390-2, and Title 21, Division of Aeronautics. Helistops shall be designed to support a minimum ten thousand (10,000) pounds.
Helistops for other than emergency use shall be provided with a fuel containment system capable of holding two hundred (200) gallons and shall be designed so that no fuel shall enter the building drain system.
Exception #1: Helistop may be omitted when a permanent enclosed stairway is provided for fire department use. This stairway shall access all floors of the building. The stairway shall be a minimum of thirty-six (36) inches wide. Stair landings shall be a minimum of forty-eight (48) inches at the head and bottom of stair flights. Access to this stairway shall be by fire department personnel only. The fire department stairway shall meet all of the requirements of U.B.C., Section 1807, except manual pull stations, public telephones and exit signs will not be required. The locking of stairway doors shall be on a separate switch located in the fire control room and not tied into the fire alarm system.
Exception #2: Helistop may be omitted when the building is equipped with a freight elevator that serves all floors and is separated from all other elevators. This elevator shaft and its lobbies shall be protected by a minimum of two hour fire-resistive construction with all openings protected by a minimum of one and one-half hour fire-resistive construction and the elevator shall meet the requirements of an emergency elevator. (Prior code §§ 9.28.1203, 15.07.703)