Southern Maryland winters are mild, but water and repeated freezing still damage pavement. Here's what to do about cracks, drainage, plowing, and potholes in Anne Arundel, Calvert, and St. Mary's counties.
If you own a driveway or parking lot in Anne Arundel, Calvert, or St. Mary’s County, you’ve probably thought something like this: we barely get snow, so my asphalt can’t be in much danger. Fair guess, and the snow numbers back you up. But the pavement problems we see across Southern Maryland (from Lexington Park to Severna Park, Odenton, and Glen Burnie) rarely come from snow. They come from water, and from temperatures that keep crossing 32°F all winter long. Here are five maintenance tips built around that reality, along with the reasons behind them, so you can decide what to handle yourself and what to hand off to us.
St. Mary’s County averages about 14.5 inches of snow a year, and the region gets 46.2 inches of precipitation overall. January days in Lexington Park typically run from a 30°F low to a 44°F high. Put those together and you get the real pattern: rain or melting snow slips into a crack, freezes overnight, and thaws by afternoon. Repeat that for a few months and a hairline crack turns into a wide one.
Asphalt itself handles this better than most people expect, because it flexes with freeze-thaw cycles instead of shattering. What breaks it is water getting where it shouldn’t be. With 536 miles of shoreline in St. Mary’s County and plenty of properties sitting close to wet ground across Anne Arundel and Calvert, every property in our service area faces this same risk. Every tip below comes back to the same goal: control the water, and the pavement mostly takes care of itself.
Start with tip one: keep water moving. After the next good rain, walk your driveway or lot and look at where water sits. Puddles that linger after everything around them has dried mark low spots, and low spots are where winter damage starts. Clear leaves, pine needles, and dirt from the edges and any drains, since debris holds water against the surface.
On parking lots we build in a drainage slope of 1.5 to 2 percent so water leaves the pavement instead of settling on it. If your lot holds water, that usually points to a grading or base issue, and patching the surface won’t fix it.
Tip two is to fill cracks before the first freeze. A crack is an open door for water, and winter swings it back and forth until the opening widens. Narrow, isolated cracks are a reasonable DIY job with a crack filler from a hardware store, as long as the pavement is dry and you’re working before temperatures drop.
Wider cracks, or cracks that link up and start to look like a spiderweb or alligator skin, are a different story. That pattern usually means the base underneath is failing, and filling the surface won’t hold. A driveway gets a quick fall walkthrough from the owner. A commercial lot is better served by a proper inspection, because a bad stretch near an entrance or a handicap space is a safety problem as well as a pavement problem, especially in busy areas like Odenton or Glen Burnie where liability exposure is higher.
Tip three is about timing. Sealcoating protects asphalt from sun, water, and chemicals, but it only works if it goes down in the right window. Our experience is that the best paving and sealing season in Anne Arundel, Calvert, and St. Mary’s counties runs roughly April through October. That means winter preparation is really a fall decision. If you wait until the first cold snap to think about it, you’ve probably missed the chance, and you’re better off filling cracks now and putting sealcoat on the list for spring.
How often is the usual question. A common rule of thumb is every two to four years, depending on how much traffic the pavement sees. A quiet residential driveway in Arnold sits at the longer end. A busy shopping center lot in Glen Burnie or Odenton, with delivery trucks and constant turning, sits at the shorter end. Anne Arundel summers are hot and humid enough to bake and oxidize asphalt, which is one more reason the surface wears faster than people expect.
People also ask whether you can seal asphalt in cold weather. We don’t recommend it, and we wouldn’t count on a sealer curing properly outside the warm months. Another common question is how long asphalt lasts. When it’s built on a properly prepared base and maintained on a schedule, 20 to 30 years is a realistic expectation. It’s not a guarantee, but it’s the reason a few small jobs each year cost less than replacing the whole surface.
If you manage properties, fall is also when next spring’s paving budget gets set. Having a condition report in hand before then makes that conversation much easier.
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Snow is rare in Anne Arundel, Calvert, and St. Mary’s counties, but when it comes it can come hard. County Emergency Services notes that winter storms can drop 3 to 6 inches in a short period, or 1 to 2 feet in 24 hours. Because big storms are occasional, property owners and plow crews don’t get a lot of practice, and that’s when pavement gets scraped, buried in salt, or left with snow piled in the wrong place.
Driveways and parking lots face different risks here. A driveway mostly needs protection from the plow blade and from water sitting at the edges. A commercial lot has more to lose: plowed-off striping, trip hazards from fresh potholes, and the liability that comes with both. The next two tips cover what to do when the weather turns, and what to do once it passes.
It can, and tip four is about avoiding that. Plow blades do the most harm when they dig into the surface, especially at edges, seams, and any spot where the pavement is already raised or cracked. If you hire a plow operator, tell them to keep the blade just above the asphalt rather than scraping it. Marking the edges of a long or shared driveway before a storm helps too, since a plow that can’t see the edge tends to chew it up.
Where the snow goes matters as much as how it’s moved. Piles stacked in the middle of a lot, or against a low spot, melt into exactly the places where water already collects, then refreeze overnight. Push snow toward areas where the meltwater can drain off the pavement and away from the surface. That applies in Lexington Park, in Calvert County, and along busy retail stretches off MD 235 and MD 4, where lots tend to fill with plowed snow fast.
Go easy on deicer. Use only what you need for safe footing, and sweep up what’s left on the pavement rather than letting it sit in piles. If you’re not sure what product is right for your lot, ask us before the storm.
For commercial owners, a plow pass can wear down line striping and ADA markings. Check them after the first big storm. Faded lines are easy to overlook, but they matter for both safety and compliance.
Tip five is to repair what’s dangerous right away and inspect everything after the thaw. If a pothole is a trip hazard or a risk to tires, don’t wait for spring. A quick fill keeps it from growing while the freeze-thaw cycle keeps working on it. Larger repairs, resurfacing, and anything that depends on the pavement being warm and dry are better planned for the April-to-October window, when materials can be installed properly.
Once the last freeze has passed, do a spring walkthrough. Look for new cracks, soft or spongy spots, crumbling edges, standing water, and faded striping. Soft spots matter most, because they usually mean water has reached the base. That’s the line between a repair you can handle and a call to Edward Smith Paving.
When you do call someone, ask a few simple questions: Are they MHIC licensed and insured? Will the written estimate spell out the base preparation and the asphalt thickness? Have they worked in your area’s conditions? Our license number is MHIC #159766, and anyone can verify it. At Edward Smith Paving, every job starts with site preparation, because that’s the step that decides how a driveway or lot handles its first winter and every one after it.
We’re based in Annapolis and serve Anne Arundel, Calvert, and St. Mary’s counties. An on-site look at your cracks, drainage, and overall condition is free, and it’s usually the fastest way to learn whether you have a small fix or a bigger problem.
Winters in Southern Maryland won’t bury your driveway in snow, but they will test it with water, freezing nights, and the occasional storm that catches everyone off guard. Keep water moving off the surface, fill cracks before the first freeze, seal on schedule in the warm months, treat plows and deicer with care, and fix hazards early. Then walk the pavement again once spring arrives.
Most of this is manageable on your own. The parts that aren’t (like soft spots, ponding water, and failing edges) are worth a second opinion before they get bigger. If you’d like someone to look at your driveway or parking lot, reach out to Edward Smith Paving and we’ll tell you what we see, whether that’s a quick fix or a plan for spring.
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