County Maintained Mileage

The Board of Supervisors of the County of Nevada, by adoption of a formal resolution, may accept roads into the "county-maintained mileage system" (see Streets and Highways Code section 941). Such roads must meet current county road standards before they are accepted. For most residential roads, this would be a paved 20-foot wide road with 2-foot wide shoulders. Such roads normally will have a revenue source sufficient to ensure adequate funding for routine road maintenance and long term asphalt rehabilitation. Only roads that are very important for public circulation are possible candidates for acceptance. Local roads with small traffic volume are normally not candidates for acceptance, unless they are planned, built, and funded as part of a newly formed subdivision.

There are approximately 562 miles in the "County-Maintained Mileage System" and an additional 50+ miles in road maintenance districts such as Permanent Road Divisions (PRDs) and County Service Areas (CSAs). A map of all County-Maintained Roads can be viewed by using the My Neighborhood Map and clicking on the "County-Maintained Roads" layer.  Here are a few road maintenance basics: 
Of the 562 miles:
  • Approximately 219 miles (39%) are unpaved rural roadways.
  • We have one of the lowest traffic fatality rates of all rural counties (rate of 5.71 fatalities per million vehicle miles traveled).
  • Our Pavement Condition Index (PCI), at 66, is one of the highest for rural counties.
  • County Road Maintenance is primarily funded with gas tax funds (approximately 80%). 

Background Information

Public roads are not always maintained. The public may have acquired historic or dedicated rights-of-way for which maintenance responsibility has not been assumed or accepted by any public entity. Examples would be old wagon roads, pioneer trails, superseded state highways, and "prescriptive rights" (continuous and notorious public use). 

Most public roads are created during the land division process. County approval may require a landowner's "offer of dedication" to the County for public use and necessity. An offer of dedication is usually recorded with the County Recorder. It cannot be withdrawn, and remains open indefinitely until accepted or vacated by the County, or until extinguished by a court in a "quiet title" action after 25 years. 


Under state law, public road rights-of-way must be open to the public, without gates or other physical impediments or obstacles to circulation. Therefore, if the County accepts an offer of dedication for a road segment, then, as to that segment, any member of the public may assert in court the public's right to have any gate or obstacle removed. The County is under a legal obligation to remove a gate or obstacle only if the County is expending public funds on the maintenance of the road segment. 

County Maintained Mileage System List