NFPA 1194-2018 Standard for Recreational Vehicle Parks and Campgrounds.
5.1 Park Design and Construction. 5.1.1 Site Plans for Recreational Vehicle Parks and Developed Campgrounds. 5.1.1.1 The location and arrangement of each recreational vehicle park and campground shall meet the approval of the chief of the fre department, forest ranger, warden, or other authority responsible for providing the necessary fre protec‐ tion services. 5.1.1.2 A site plan shall be supplied to the fre and law enforcement agencies having jurisdiction. 5.1.1.3 This site plan shall show and identify camping unit sites, each stand, major structures and facilities, and water supply for fre protection purposes in the recreational vehicle park or campground, to facilitate response by emergency serv‐ ices such as fre, police, and ambulance. 5.1.1.4 Means of access for emergency responders shall consist of roadways, fre lanes, parking lot lanes, vacant camping unit stands, or a combination thereof, and shall be provided to all structures. 5.1.1.4.1* Multiple Access Roads. More than one fre depart‐ ment access road shall be provided when it is determined by the AHJ that access by a single road could be impaired by vehi‐ cle congestion, condition of terrain, climate conditions, or other factors that could limit access. [1:18.2.3.3] 5.1.1.5 Roads shall be designed and constructed to allow evac‐ uation simultaneously with emergency response operations.
5.1.1.6 Bridges. 5.1.1.6.1 When a bridge is required to be used as part of a fre department access road, it shall be constructed and maintained in accordance with nationally recognized standards. [1:18.2.3.4.5.1] 5.1.1.6.2 The bridge shall be designed for a live load suffcient to carry the imposed loads of fre apparatus. [1:18.2.3.4.5.2] 5.1.1.6.3 Vehicle load limits shall be posted at both entrances to bridges where required by the AHJ. [1:18.2.3.4.5.3] 5.1.2 Roads. Minimum widths of recreational vehicle park and campground roads designed to accommodate all types and sizes of camping units shall be 10 ft (3.0 m) per traffc lane and 8 ft (2.4 m) per parallel parking lane. 5.1.2.1 Roads leading to accessory structures shall be designed and constructed to accommodate the load and turning radius of the largest apparatus typically used to respond to that loca‐ tion. 5.1.2.2 Roads leading to accessory structures shall be not less than 20 ft (6.1 m) of unobstructed width with a 13.5 ft (4.1 m) vertical clearance. 5.1.2.3 Road curves designed for use by all types and sizes of camping units shall have a minimum internal radius of 30 ft (9.1 m).
NFPA 1194 pdf download.