XF100 FIRE ACCESS
All portions of the exterior walls of the structure (at grade) shall be within 150 feet from approved fire apparatus access. The distance shall be measured along a direct walking path around the building considering obstructions such as retaining walls. These requirements apply to all the access road leading from the nearest fire station to the residence. An approved access road shall be a minimum:
• A minimum of a 20-foot wide drivable surface
• A minimum unobstructed height of 13’ 6”
• Capable of supporting 25 tons in all-weather conditions
• A finished roadway gradient cannot exceed 15% at any location
• A dead-end access roadway cannot exceed 150 feet in length without an approved means of turning the fire apparatus around. An approved turn around shall be either a minimum 80-foot diameter cul-de-sac with a minimum turning radii of 20 feet inside and 40 feet outside, or an approved “hammerhead” turn-around (per King County Public Rule 17.04).
Exemptions:
• Residences provided with an approved fire sprinkler system
• Attached decks, exterior porches and carports open on two sides.
King County allowed for fire access to be reduced to 10 feet wide for cell tower sites.
Applied | Notice | 08/19/2020