OPINION
The issue to be resolved in this case is whether Arizona’s “open range” rule exonerated the County from warning of the possible presence of cattle on its highway. The issue was decided below in favor of the County on a motion for summary judgment.
On May 25, 1971 at approximately 9:30 p. m., appellant, riding a motorcycle, collided with a black steer approximately one-half mile west of the intersection of In *28 dian School Road and 91st Avenue in Phoenix, Arizona. The affidavits and depositions in support of and in response to the motion for summary judgment revealed that at the time of the accident appellant was traveling at a speed of 40 to 45 mph; that he had on prior occasions traveled the same area in the daytime and nighttime; that appellant knew that cattle were confined in pens off the roadway and although he had actual knowledge of their presence in the area he had never seen any of them straying onto the roadway prior to the evening in question.
The record further discloses that the area in which the accident took place is not in a “no fence district” and is therefore open range.
The deposition of Wade McCassalin, a civil engineer with the Maricopa Highway Department, shows that in 1970 Mr. Mc-Cassalin undertook a study of Indian School Road between 83rd Avenue and Dysart, which is west of 91st Avenue, for the purpose of developing a speed zone change on Indian School Road. Mr. Mc-Cassalin’s study resulted in the Board of Supervisors increasing speeds for this zone from 45 mph at night and 50 mph during the day to 60 mph for day and night. In the course of conducting the speed study, Mr. McCassalin compiled an accident history for Indian School between 83rd Avenue and Dysart. He specifically noted that there had been three accidents involving animals in a two-year period in that area. No sign warning of the possibility of cattle upon the highway in that area had been posted because Mr. McCassalin did not think it necessary.
In support of his opposition to the summary judgment motion, appellant submitted the affidavit of Judson S. Matthias, PhD., a professor of transportation engineering and highway design at Arizona State University. Dr. Matthias stated that based upon the factual situation the standard of care imposed by highway maintenance authorities in the traffic engineering profession in the interest of keeping public ways in a reasonably safe condition for public travel required that a sign warning of the possibility of cattle upon the highway be present on Indian School Road between 91st Avenue and 99th Avenue. He also opined that the presence of livestock after dark on a major county highway, having a posted speed limit of 60 mph constituted a condition unreasonably dangerous to motorists using the highway, in the absence of proper warning or lighting.
Also attached to appellant’s response to the County’s motion for summary judgment were pertinent provisions of the Manual on Uniform Traffic Control Devices, a document which has been adopted by the State Highway Commission pursuant to A.R.S. § 28-641 and which specified the required procedures for a state agency to install traffic control devices. The manual states that the application to be made of signs warning of “range cattle” are “sufficiently apparent as to require no detailed specifications.”
It was the position of the County in the trial court, as on appeal, that A.R.S. § 24— 502 insulates it from any liability to warn of the existence of cattle on the highway. We do not agree.
The duty of the County is to maintain its highways reasonably safe for travel. City of Phoenix v. Weedon,
Appellee argues that since A.R.S. § 24 — 502 provides that an owner or occupant of land is not entitled to recover for damage resulting from the trespass of animals unless the land is enclosed within a lawful fence, it cannot be required to give warning of the existence of range cattle. In particular, it points to the case of Stuart v. Castro,
We believe the record precluded the granting of appellee’s motion for summary judgment.
Reversed and remanded for further proceedings consistent herewith.
NOTE: This cause was decided by the Judges of Division Two as authorized by A.R.S. § 12-120(E).
