County Road or Private Road: Who Grades It, and How Often

The road to your parcel outside Pearce is dirt, it has a county road-name sign at the highway, and the last two miles have not seen a grader in a year. Who is supposed to be grading it?

The answer turns on something the sign does not tell you: whether the road is in the county's maintenance system. A named road is not necessarily a maintained road, and a public right-of-way is not necessarily one the county has ever accepted.

The numbers

Cochise County's Highway Division maintains the roads the Board of Supervisors has formally accepted, and only those. The division's 2025 figures for the unincorporated county, excluding state highways:

More than two-thirds of the road miles in the unincorporated county are maintained by nobody in particular. The county's planning FAQ is blunt about public roads outside the system: "No entity is formally responsible for maintaining these roads." They stay as they are until the Board accepts them. (The county's older FAQ page gives different totals, 1,441 and about 2,470; the slides are newer and the point survives either way.)

How to find out which yours is

There is no simple published list. The county says its maintained-road atlases are GIS-generated and directs you to the Highway and Floodplain Department; the Public Works number on the FAQ page is 520-432-9310. Ask by road name and nearest cross street, and ask specifically about the segment in front of your parcel, because roads are often in the system for part of their length and not the rest.

If the road is maintained, the Highway Division's 2025 workplan gives the grading cycle:

• Most county dirt roads: every 9 to 12 weeks, about four passes a year.
• Primitive roads: every six months.
• Geronimo Trail to milepost 13.5 and Cascabel Road: every four weeks.
• Turkey Creek and North Middle March Road: three times a year.

Schedules slip after storms and breakdowns, and the county says plainly there is nothing it can do about dust. Driveway culverts are the property owner's responsibility even on a county road; culverts under the roadway are the county's.

What a primitive road sign means

So the sign is a liability notice, not a maintenance promise, but a primitive road is in the county system and is graded twice a year. That beats the 3,681 miles graded by nobody. (The county FAQ dates primitive roads to before 13 June 1975; the statute says 1990.)

Getting a road into the system

Road maintenance here is funded by state Highway User Revenue Funds, the gas tax, not property tax, and the county's position is that statute lets it spend those funds only on roads the Board has accepted. The add/drop policy (Resolution 19-01) sets the bar for an existing dirt road: a public right-of-way wider than 50 feet, construction before 13 June 1990, contiguity with a county-maintained road, and average daily traffic above 100. Roads opened after 1990 are not eligible until built to county standards. A road can also be dropped: under 20 vehicles a day, encroachments, two or fewer addresses.

If your road does not qualify, the county offers two Title 48 structures:

• Road Improvement District (RID). The owners pay to design and build the road to county standard; the county then maintains it. Forming one takes a majority of owners, or the owners of 51 percent of the property, and each parcel is assessed its share on the tax bill.
• Road Improvement and Maintenance District (RIMD). The owners build to a lower standard and the district maintains the road itself, governed by an elected local board and funded by an additional property tax. Fairfield Estates and High Knoll Ranches are the two the county names.

There is also a public/private partnership under Resolution 15-25 for upgrading an already-maintained dirt road to chip seal, with the applicant paying for materials.

Private roads and the subdivisions with no HOA

A great many valley lots sit on roads that are neither county-maintained nor owned by anyone who will maintain them: 1970s plats with no functioning association, or metes-and-bounds splits reached by an easement. The county's position is that "if a road is privately owned, maintenance is the responsibility of the property owner or the private entity".

Where several owners share the road, the instrument is a recorded road maintenance agreement. Fannie Mae's Selling Guide says what one must contain if any lot will ever carry a conventional mortgage: each party's share of repairs, remedies on default, and a term that is in most cases perpetual and binding on future owners, recorded in the land records. Without one, Arizona's default rule from the Court of Appeals is that co-users of a shared easement contribute in proportion to use, but enforcing that means a lawsuit. The agreement is cheaper.

What a mile of grading costs

Nobody publishes a Cochise County private grading rate, and we will not invent one. Three published figures bracket it.

The county's rough-order-of-magnitude costing in its August 2025 workplan puts maintaining a dirt road at about $45,000 per mile over 20 years: roughly $2,250 a mile a year, or something over $500 a pass at four passes, at the scale of a public works fleet. Chip seal came in at about $140,000 a mile including 20 years of maintenance.

A private contractor is dearer per pass because of mobilisation. The clearest published benchmark for a motor grader with operator is MaineDOT's 2025 reimbursement schedule: $148.65 to $168.97 an hour by machine size. That is a Maine figure, not an Arizona one, but it is the right order of magnitude until you have a local quote. A mile that only needs a reshape is a few hours; a mile that has lost its crown and ponds in the monsoon is a day with material.

Do not use national per-square-foot driveway calculators for a road. Homewyse's May 2026 figure for grading a driveway is $8.42 to $10.80 per square foot; on a 12-foot-wide mile that is north of half a million dollars, which tells you it is modelling a skid steer on a suburban lot, not a grader on a ranch road.

Whoever you hire for anything beyond a favour should be licensed. Ask for their ROC number and check it at azroc.my.site.com. If the road crosses a mapped watercourse, grading it can need a floodplain use permit, and reshaping an access route is subject to the same rules as any other earthwork in our land clearing guide. Tell us the road and the job and a licensed local contractor will call you to quote it.

What we could not confirm

• We could not find a public, parcel-level list of county-maintained roads on the county website. Ask the Highway Division for your segment.
• We could not reconcile the county FAQ's mileage and 1975 date with the 2025 Board slides and the statute. We have used the newer and the statutory figures.
• We could not confirm a per-hour or per-mile rate for private grading in Cochise County from any published source.
• The 2025 Board slides include a slide titled "Private Road Maintenance Eligibility" with no content in the published copy. If the county has such a policy, we have not seen it.

The short version

Cochise County grades only the roads the Board has accepted: about 1,433 miles, against roughly 3,681 that nobody maintains. Most maintained dirt roads see a grader every 9 to 12 weeks; primitive roads, signed under A.R.S. § 28-6706 as a liability notice, every six months. Ask the Highway Division which your segment is. A road that does not qualify can be brought in through an improvement district, or kept up privately under a recorded maintenance agreement that says who pays what. Budget a private grader with operator at roughly $150 to $170 an hour until a local quote replaces it, and ignore per-square-foot driveway calculators.