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Asphalt paving in Potosi, MO

Driveways, courthouse square parking lots and private roads paved in hot-mix asphalt, graded for steep Ozark hill ground.

Free estimates25% off

Map: Potosi, MO in Washington County, 57 miles south-southwest of downtown St. Louis MISSISSIPPIMISSOURIMERAMEC PotosiSt. LouisMineral PointTerre du LacIrondale
Potosi · Washington County57 mi southwest
CountyWashington County
ZIP codes63664 · 63660
From downtown St. Louis57 miles south-southwest
Population (2024 est.)2,549

Main routes: Highway 8, Highway 21, and Highway 185

Paving Potosi from the base up

Three highways meet in Potosi. Highways 8, 21 and 185 all come together here, which is why a town this size carries the commercial traffic it does. Driveways and parking lots make up most of our work, and both are decided by what goes under the asphalt.

Moses Austin renamed the old Mine a Breton settlement after a Bolivian mining city, and mining shaped the ground people still build on. Washington County is steep: one soil association covers about half the county on slopes running 3 to 40 percent, and local relief often tops 200 feet. Grade, drainage and a compacted rock base carry the job here. Free estimates, and you get 25% off.

Long new asphalt driveway winding under mature shade trees toward a detached two-car garage

Driveway paving in Potosi

A drive on a steep grade behaves nothing like a flat one. Water runs the length of it, picks up speed and cuts in under the low edge. We break that up with cross slope and, where it is needed, a drain across the drive, then build the base in compacted lifts. Home drives typically get 2 to 3 inches of hot mix, with the edges shaped so they hold.

Driveway paving

Parking lot paving in Potosi

Lots around the courthouse square and along Highways 8, 21 and 185 handle delivery trucks and steady turning traffic. We size the base for the loaded vehicle, set the pitch so runoff leaves at planned outlets instead of sheeting toward the building, and keep entrances square with the highway so the pavement edge does not break down.

Parking lot paving

Road construction & private roads

Private roads, mine and quarry access drives and long rural lanes around Potosi live or die on crown and culverts. We grade the subgrade, size the drainage, compact rock in layers and pave to the thickness the traffic requires. On long lanes, chip seal or recycled asphalt millings give a firm surface for less money.

Road construction

General asphalt paving & repair

In a town like Potosi, general asphalt work covers a lot of ground: shop and church lots, alley aprons, repairs along a curb line, overlays on older streets and pads for equipment. The approach stays the same: fix the base, lay the hot mix, roll it tight, finish the edges.

Asphalt paving
Aerial view of a freshly paved asphalt parking lot with new white striping surrounding a building beside hardwood trees
Aerial view of a freshly paved asphalt parking lot with new white striping surrounding a building beside hardwood trees

Also available in Potosi

Built for Potosi's ground

About half of Washington County is one upland soil association formed in loess and bedrock residuum, on slopes of 3 to 40 percent, with local relief commonly over 200 feet. Steep ground plus freeze-thaw winters means runoff moves fast and water gets into every weak spot. Drainage is designed before the base goes in.

Bids are only comparable when they spell out the same things: base depth, compacted thickness, how edges are finished, and where water is meant to go. Ask for those before you pick a number.

Compacted asphaltTypically 2 to 3 in. for a car drive
Stone baseTypically 4 to 8 in., compacted
Drive on itUsually 2 to 3 days, longer in heat
First sealcoatTypically 6 to 12 months after paving

Typical ranges. Your Potosi estimate is sized to the soil, the traffic and the drainage on your property.

Cross-section of an asphalt driveway From top to bottom: compacted hot-mix asphalt surface, compacted crushed-stone base, and prepared subgrade soil, with the surface sloped so water runs off. Slope sheds water Hot-mix asphalt 2 to 3 in., rolled hot Crushed-stone base Subgrade, soft spots dug out Typical driveway, not to scale
Freshly paved asphalt parking lot and drive aisle at an office park with concrete curbs and safety cones
Freshly paved asphalt parking lot and drive aisle at an office park with concrete curbs and safety cones

Potosi paving questions

Straight answers for Potosi homeowners and property managers. Anything else, call (866) 490-7680.

Can a long private road be paved a section at a time?

Yes, and that is common out here. We usually start with the steepest or worst-draining stretch, since those cause the most trouble, and build the rest as budget allows. The drainage plan should still cover the whole road even when the paving is staged.

What is chip seal, and when does it make sense?

Chip seal is a sprayed asphalt binder covered with compacted stone chips. It gives a durable, textured surface for less than hot mix and suits long rural drives and lanes. It is not the right answer for a tight residential drive or a striped commercial lot.

Is my part of Washington County in your service area?

Yes. We work in Potosi and throughout Washington County, along with the rest of greater St. Louis on both sides of the river. Call or send the form with your address and we will set up a time to look at the job.

Do you need a permit to tie into a Potosi road?

Work inside your Potosi property line usually does not need one, but a new entrance onto a city street, a county road or a state route often does. The rules differ by road, so check with the city or county first; the owner normally pulls that permit.

More towns around Potosi

We pave all around Potosi, across Washington County and the rest of greater St. Louis on both sides of the river.

All 4 Washington County communities

Every town we serve

TownCountyMiles from Potosi
Mineral Point, MOWashington County2.9
Terre du Lac, MOSt. Francois County8.8
Irondale, MOWashington County8.8
Frankclay, MOSt. Francois County10.0
Leadwood, MOSt. Francois County11.3
Wortham, MOSt. Francois County11.4
Caledonia, MOWashington County11.7
Bonne Terre, MOSt. Francois County12.7
Lake Timberline, MOSt. Francois County13.0
Bismarck, MOSt. Francois County14.2

Ready for new asphalt in Potosi?

Free on-site estimates and 25% off. Driveways, parking lots and private roads in Potosi and the towns around it.

Free estimate in Potosi

Tell us what you want paved and where. We'll call to set up a time to walk the site, measure, and give you a written quote with your 25% off.

  1. Send the form or call. We reply to set a time.
  2. We walk the site, measure and talk through options.
  3. You get a quote with your 25% off, and straight answers on base, thickness and drainage.
Rather talk now?(866) 490-7680

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