Asphalt Paving in Oshkosh, WI

Asphalt paving in Oshkosh starts below the surface. The city sits on the Fox River between Lake Butte des Morts and Lake Winnebago, and much of Winnebago County is blanketed by red, clay-rich sediment from a glacial lake that once covered the area. The state's geological survey notes that clay-rich ground here is relatively impermeable to stormwater, so rain and snowmelt tend to stay near the surface. Add an average of about 39 inches of snow a year and January nights that average around 10 degrees, and you have the recipe for frost heave, soft spots and potholes. A good driveway or lot here is mostly a good base and good drainage, with blacktop on top.

Clay, water and frost

Clay soils hold water and lose strength when wet. When that water freezes, it expands and lifts whatever sits above it; when it thaws, it leaves the soil soft and the pavement unsupported. Asphalt laid directly on clay, or on a thin skim of gravel, flexes under every car until it cracks. The fix is a deeper layer of compacted crushed stone between the clay and the asphalt, a surface that sheds water quickly, and edges shaped so water does not run back under the pavement.

What a solid build looks like

Published cost guides describe a common residential build as 2 to 3 inches of compacted asphalt over 6 to 8 inches of compacted gravel base, with 3 to 4 inches over 8 to 10 inches for heavier vehicles. On Oshkosh clay we lean toward the deeper end of the base range, and on wet sites we may add a geotextile fabric under the stone to keep clay from pumping up into it. Every quote spells out the base depth and the compacted mat thickness we plan for each area.

An old city with every age of pavement

Oshkosh incorporated in 1853 and grew rich as the Sawdust Capital of the World, with 47 sawmills by 1874. The Great Fire of 1875 destroyed about 500 homes, and much of the older city was rebuilt afterward. Today you will find narrow drives to detached garages on the near north and south sides, postwar ranches on wider lots, and newer subdivisions toward the edges of town. Each calls for a different mix of replacement, resurfacing and maintenance.

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The city right-of-way

The area between the street and your property line belongs to the city. Oshkosh requires right-of-way permits for work there, licenses contractors who excavate in it, and requires an obstruction license for anything like a dumpster that sits in the street. In February 2024 the Common Council also voted to end special assessments for road and sidewalk reconstruction, replacing that money with a $35 vehicle registration fee and utility contributions. If your project changes an apron or curb cut, we confirm the current requirements with the city before scheduling it.

Gravel to blacktop

Many homes around Lake Winnebago, Lake Butte des Morts and in the surrounding towns still have gravel drives. A conversion can reuse much of that stone as base if it is regraded, topped up and compacted. Long lake-lot and rural drives also need a plan for water crossing them, which may mean a crown, ditches or a culvert.

What a typical driveway job includes

• A site visit to measure, check slope and look at the garage, apron and drainage
• Tear-out and recycling of old asphalt or concrete, if needed
• Excavating soft clay and replacing it with compacted crushed stone
• Grading the base so water leaves the pavement
• Placing and rolling hot-mix asphalt to the thickness in your quote
• Shaping and backfilling the edges, then cleanup and care instructions

Oshkosh is our base. We also work around the lake and up the Fox: Neenah, Menasha, Fox Crossing, Appleton, Grand Chute, Greenville, Kimberly, Little Chute and Kaukauna to the north; Fond du Lac and North Fond du Lac to the south; Omro, Winneconne, Berlin, Ripon and the Town of Algoma to the west; plus Chilton, New London and Waupun. Soils, lake levels and city rules vary from one place to the next, and so does the age of the pavement. Each town page explains what we see there.