The gravel arithmetic
Why townships switch
Every gravel mile costs a regrade and a dust program every year, forever — blades, water trucks and calcium chloride on a schedule the frost resets each spring. A chip-sealed mile costs once: shot, chipped and fogged in a day, and then it asks for a fog seal every six to eight years and nothing else. Councils that run the ten-year spreadsheet stop reading it in year four, because the chip mile has stopped asking.
Rates & rates only
The applications
One crew, one calendar of dry weeks, and a rate card the reeve can read aloud at a council meeting without a glossary. Every line is per square yard of finished surface, stone and oil and labour inside it, and the mileage math is a one-line email away.
The township card
The same card the office faxes to every clerk in the county — printed rates, no per-council pricing, and the dry-week clause in plain words at the foot.
Single-shot chip seal$2.10 / sq yd
One oil, one stone, rolled, broomed and fogged
Double-shot chip seal$3.40 / sq yd
Two oils, two stones — for school routes and heavy farm haul
Dust oil, no chip$0.85 / sq yd
The summer dust program, one pass, one season
Fog seal, return visit$0.60 / sq yd
The six-to-eight-year refresh that keeps the mat black
Farm yards & feedlot pads$1.85 / sq yd
Shot heavier for standing traffic and hoof traffic
Shoulders & mailbox aprons$1.60 / sq yd
The edges that let the plow in without dropping a wheel
Chip wants three dry days above fifteen degrees — we shoot the dry week, never the calendar, and the clerk hears the week before the truck rolls: (555) 040-3729.
ONE LANE · ONE DAY · BROOMS BEFORE SUPPER
One lane, one day
06:00
Shoot the oil
The distributor lays an even film of hot road oil across the crowned lane, shot to the width the council ordered and not a wheel-track more. The spray bar is calibrated every spring and the ticket says exactly what went down.
09:00
Drop the chip
The chip truck follows the oil with crushed stone — clean, sharp, one size — spread the width of the shot. The stone goes down while the oil is live, because stone on cold oil is gravel wearing a costume.
Noon
Roll it in
Pneumatic rollers make three passes, setting the stone into the oil and the oil into the old surface. This is where a chip seal becomes a mat instead of a million separate decisions.
15:00
Broom the loose
The sweeper gathers what the rollers did not seat — there is always a fraction — and the loose stone goes to the shoulder, not the ditch. Speed signs stay up for a week; the mailboxes forgive us by Friday.
Next week
The fog seal
A light emulsion over the finished mat locks the last stone and turns the road the black a council can point at. From that fog forward, the maintenance calendar is a fog seal every six to eight years.
A township story
The Fourth Line, before and after
Two miles of washboard that ate a grader week every summer and a school-bus shock absorber every autumn. Shot and chipped on the third Tuesday of June, double-shot because the milk trucks use it, and fogged the week after. Three summers on, the Fourth Line has cost the township one fog seal and nothing else — and the grader it used to eat spends July on the gravel it still owns.
Curlew County, 2025 — 2026
Lanes we finished
Six roads from last season’s dry weeks — photographed the day the fog went down.
The county, in figures
We put the chip-seal question to council for three years running and lost to the price every time. Longwater came to the meeting with a ten-year sheet — gravel on one column, chip on the other — and the debate ended in eleven minutes. The road went down in June, the dust stopped in June, and the grader has not been back since. That sheet now lives in the township file as the way we price roads.
The stone stays
Some loose stone in the first week is physics, not failure — that is why the brooms run and the speed signs stay up. But if the seated stone lets go before the second winter — bleeding oil, stripping at the wheel tracks, stones loose by the handful — we re-shoot the lane and fog it again at no cost to the township, and the oil ticket from the first pass goes in the file beside the second. Chip seal is a mat or it is gravel; there is no in-between we are willing to sell.
Fair questions
Asked at every council meeting
The five the dry weeks hear. The pricing one is answered by the card above — the card is the answer, which is why we print it.
Will it throw stone at our cars?
There is a loose fraction in the first days — swept, signed and gone inside a week. The stone that stays is seated by three roller passes into oil that was live when it landed; the stone that leaves was never going to stay. We leave the speed signs up for seven days and the broom comes back on day three; drive it like you drove the gravel and the windshield never learns anything happened.
How do snowplows treat it?
Better than they treat gravel, because the blade rides a crowned mat instead of digging for crown through two inches of loose. The shoulders get shot precisely so the plow can drop a wheel without dropping the road edge — and in spring, the chip-sealed mile is the one that does not need the grader first. Nine townships plow our roads every winter; the complaint file is a thin one.
When does it become a real road?
After the fog seal, which is the finishing coat a week behind the chip — and then honestly, after its first full year of traffic, when the mat kneads itself tight. What you get on day one is a sealed, dustless, crowned road you can plant a mailbox on; what you have at year one is the same road in its final temperament. The fog seal is on the card and in the schedule, not an upsell we spring at the end.
Our gravel is fresh this year — can we chip now?
Usually we say let it spend one full frost cycle as structural gravel first — fresh fill moves, and chip seal does not forgive movement, it records it. We would rather tell a council to wait a season than shoot a road we will be re-shooting at our own cost in year three. If the base is older and only the surface is new, the answer can change — the crew reads the road before anyone quotes it.
What does a mile of our road cost?
Width and shots decide it, and the math is one line: rate times square yards, plus a mobilization that drops to nothing when townships stack roads into one dry week. Send the road name and the length from the township map, and the office returns the per-mile number the same day — the same figure the council read out in Curlew County’s budget meeting, not a special one.
Estimates
Bring the number to council
Send the road name and the length off the township map — we return the per-mile number the same day, with the ten-year sheet attached for whoever asks how it compares to gravel. Dry weeks are booked in the order councils commit: oil@longwaterchip.example