Asphalt Paving in Saint Paul, MN
Asphalt paving means building a new or replacement driveway, pad or small lot from the base up, and in Saint Paul the ground, the frost and the city's rules all shape what gets built. Much of the city sits on sandy outwash that drains well, but pockets of silt and old fill do not, and Ramsey County falls in the state's 3-1/2-foot frost footing zone. The city also dictates materials and widths: parking must be paved, front-yard drives max out at 12 feet, and the apron in the right-of-way is concrete. A good paving contractor starts from all three before quoting a single square foot.
$5 - $15 per sq ft installed, new or replacement; overlays about $1 - $3 per sq ft · full pricing guide
Thickness should follow the soil. The Minnesota Asphalt Pavement Association's design guide gives car lots and driveways 2 inches of wear course over an asphalt base of 2.5 inches on strong soil, 3.5 inches on moderate soil and 5 inches on weak soil; with a gravel base instead, it pairs 2 inches of wear and 2 to 3 inches of binder with 3 to 6 inches of aggregate. The guide also calls for subgrade compaction to 95 percent of maximum density and a slope of at least 2 percent. On clean outwash sand the lighter sections can be defensible; on silt or fill, the heavier ones are the safe choice.
Permits depend on what changes. In Saint Paul, a new curb cut through the sidewalk and boulevard needs a permit from Public Works, and concrete work in the right-of-way, apron included, may only be done by a contractor holding the city's sidewalk permit, with an inspection requested 24 to 48 hours before the pour. Replacing a pad in the same footprint off an alley is simpler, but it still has to meet zoning: paved with asphalt, concrete or pavers, reached from an improved alley where one exists, and set back 1 foot from the alley line and 4 feet from side and rear lines.
Hot mix is a warm-season product. MnDOT's specification bars placing a final wearing course after November 1 south of a line between Browns Valley and Holyoke, an area that takes in the Twin Cities, and the city's own asphalt plant usually shuts down in late November or early December. For a driveway, June through September gives crews the longest working time for compaction. After asphalt driveway installation, HomeGuide advises staying off the surface for 24 to 48 hours, or 3 to 5 days in hot weather, and the first seal coat waits much longer: Latex-ite recommends 12 months.
Overlay or replace is the first decision. An overlay adds new asphalt over a surface that is cracked but still holds its shape; Roseville's 2026 street program mills off the top 1.5 to 2 inches of about 5 miles of streets and repaves them. Over a broken base an overlay fails early, because the old cracks reflect up through the new layer. Full replacement removes everything down to the base. HomeGuide puts overlays at $1 to $3 per square foot and standard installs at $5 to $12 or more, Angi puts replacements at $8 to $15, and the cost page has the rest.
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When a Saint Paul drive needs replacing, not sealing
Replacement is the expensive answer, so it should follow clear evidence. These are the signs that asphalt driveway installation, not another coat, is the next step.
- Cracking and patching across most of the surface
- Heaving or sinking that comes back every spring
- Water pooling against the garage slab or the house
- An old gravel pad that has to be paved to meet city code
- Crumbling edges and an apron that no longer carry a tire
Overlay, replace, or switch materials
Three options cover most driveway rebuilds in the city.
Overlay
Cracked but stable pavement on a sound base. New asphalt goes over the old after cleaning, patching and a tack coat. Cheaper up front, but old cracks can reflect through.
Full replacement
Failed base, heaving or poor drainage. Remove the old pad, correct the base and grade, and pave new asphalt at the thickness the soil calls for.
Concrete or pavers
The city accepts standard or pervious concrete and pavers as well as asphalt. They cost more up front and change the maintenance routine, but they are legal alternatives where an owner prefers them.
Asphalt Paving FAQs
Can a gravel parking pad be paved over as it is?
Not as it is, and in Saint Paul it cannot stay gravel either: the city requires off-street parking spaces to be paved with asphalt, concrete or pavers, and gravel or crushed rock does not count. Existing gravel can often become part of the base, but it has to be regraded, topped up with clean aggregate and compacted before asphalt goes on. Paving straight over loose, rutted gravel produces a pad that settles unevenly within a winter or two.
How wide can a new driveway be in Saint Paul?
In a front yard, no more than 12 feet, except within 30 feet of the garage door, where it may be up to 4 feet wider than the door. The minimum for a one- or two-family house is 8 feet. Parking cannot sit in front yards or required side yards, and cars may not park on the part of a driveway or apron that crosses the public sidewalk or boulevard. Suburbs set their own limits; Maplewood, for one, caps parking and driveway area at 40 percent of the front setback.
Does a new driveway need a deeper base because of frost?
Frost is handled mostly by drainage and good material, not by digging to frost depth. Building footings in Ramsey County go 3-1/2 feet down under Minnesota Rules part 1303.1600, but no driveway base goes that deep. What matters is keeping water out: clean, compacted aggregate, a subgrade that drains, and a surface sloped at least 2 percent. On silty or filled ground, a paving contractor may dig out and replace soft material before building the base.
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