Caring for a Sealed Driveway Through an Anderson Winter

September 17, 2026

Plows, salt and shovels decide how much of this year's sealcoat is still there in April. Here is what a sealed driveway in Anderson can take, and what quietly shortens its life.

What an Anderson Winter Actually Does to a Sealed Driveway

Sealer is a surface film, roughly the thickness of a business card. It blocks water and takes the wear so the asphalt underneath does not, but it is not structure. A fresh coat will not stiffen a soft base, bridge a moving crack or stop a reflective crack from coming back. So the coating rides out the season on pavement that is drained and sealed shut, and comes apart on pavement that is neither.

The Indianapolis station averages 98.6 days a year at or below 32 degrees F, and the regional freeze-thaw analysis puts the average near 42 cycles a year, with stations ranging from about 23 to 60. Each cycle is a chance for water in a crack to expand roughly nine percent and push. The Crosby soils under most of Anderson hold a perched water table between about 0.5 and 2.0 feet down through winter and spring, so that water has nowhere to drain to. The figures are collected on the Anderson pavement data page.

Deicers: Which Ones Are Gentler, and Why Less Is the Real Answer

Purdue Extension groups the common household deicers into five chemicals, and they do not behave the same way on pavement, plants or the metal in a garage threshold.

The bigger issue for asphalt is mechanics, not chemistry. Brine keeps meltwater liquid well below freezing, so water that would have stayed frozen runs into every open crack and refreezes there overnight. A crack is a pipe delivering water into a base that cannot get rid of it, and deicer keeps that pipe flowing on days it would otherwise be shut. Spreading thin and sweeping up the leftovers once the ice releases does more good than switching brands.

• Sodium chloride (rock salt) is cheapest and most common, and Purdue Extension notes it can damage metal and concrete.
• Calcium chloride gives off heat as it melts, which lets it work at lower temperatures than the others.
• Potassium chloride can burn foliage and damage the roots of plants along the driveway edge.
• Urea is less likely to harm nearby plants unless too much of it is used.
• Calcium magnesium acetate, usually sold as CMA, causes little impact on plants.

Plows, Blades and the Edge Nobody Watches

A steel plow blade dropped flat onto a sealed surface strips the film off in lines, and it finds every high spot and raised crack repair on the way through. Shoes or a rubber cutting edge on the plow, and a plastic blade on the shovel, keep metal off the coating. Chipping at bonded ice with a spade edge does the same damage in a smaller area, and that is where most spring touch-up work starts.

Where the snow ends up matters more than how it is moved. A driveway is typically four inches of asphalt over six inches of stone, and the edge is unsupported. Banking wet snow against it puts a saturated, freezing load exactly where the pavement is weakest, and that strip crumbles first. Push piles onto the lawn instead.

The Brine That Rides In From the Road

Anderson sits on Interstate 69, State Road 9 (Scatterfield Road), State Road 32 (14th Street) and State Road 109. INDOT runs its winter season from roughly mid-November to mid-March across more than 29,000 lane miles, with over 1,000 plows, treating routes every two to three hours during a storm.

None of that stops at the property line. Tires carry treated slush up the apron and drop it in the first ten or fifteen feet of the drive, which is why the street end usually looks a season older than the garage end. Look hardest at that strip when deciding whether a drive needs crack filling before the next freeze.

The Fall List, Before the First Hard Freeze

The maintenance order does not change with the calendar: fix drainage first, fill cracks every year, patch before winter, seal every two to three years, stripe last. What the calendar changes is what is still possible. Sealer needs pavement and air above about 50 degrees F, 24 hours above 50 degrees F afterward and no rain for 24 to 48 hours, so the window closes well before the first snow does.

• Walk the low spots after a rain and note anywhere water stands more than an hour.
• Fill working cracks before they take on water, since crack filling always comes before sealing.
• Patch anything that has gone soft or broken through to the stone rather than sealing over it.
• Clear leaves and debris out of the edges and any drain that serves the drive.
• If new asphalt went down this year, let it cure through a season before its first sealcoat.

What April Will Tell You

April is the honest month. The ground has thawed, so standing water shows where the base has failed, soft spots give underfoot and every crack the winter opened is visible before the first mowing hides it. September flatters a driveway; April does not. What turns up then can be repaired and sealed once pavement temperatures hold, which means late May or June rather than the first warm week.

Putting the crack fill, the patching and the seal on asphalt maintenance plans beats tracking that window from memory. If a driveway came through worse than expected, here is help getting a driveway sealed before the cold sets in, and the reasons these drives fail from the bottom up are on the failure guide. What moves the number on a quote is on the cost page.

More from the blog

• One Coat or Two: How to Read a Sealcoating Quote in Anderson
• Pothole Repair in Anderson: Throw-and-Go Cold Patch vs Cut-and-Fill Hot Mix
• Driveway Ponding in Anderson: What to Do About Standing Water