Get matched with top asphalt driveway pros in Somerville, TN

Building a road on a slope requires careful planning and will normally require a drainage system underneath to prevent flooding and damage to the road over time. Your professional may lengthen your road to create switchbacks if the slope directly to your home is too steep, as there are regulations for maximum road slope. The drainage system will help prevent runoff from the higher side of the slope from damaging the asphalt or concrete. Keep in mind that building a road on a slope isn’t a good DIY project, as a lot can go wrong.

Asphalt and tarmac are not the same thing. Traditional tarmac, short for tarmacadam, uses tar as a binder to hold crushed stone together. Asphalt uses bitumen—a byproduct of crude oil—to bind aggregate. Though tarmac was once a go-to for roads, asphalt has become the modern standard. And these days, most surfaces referred to as “tarmac” are actually asphalt. So, while the names may overlap, the key distinction lies in the binder—tar for tarmac and bitumen for asphalt.

Common alternatives to a gravel driveway include concrete, asphalt, brick, stone pavers, and permeable pavers. Concrete and asphalt are generally the most affordable options. However, concrete can be prone to cracking in cold climates, while asphalt may soften in areas with high heat and direct sun exposure. For enhanced curb appeal, brick, stone, and permeable pavers are popular choices, though their installation can be more expensive due to intricate designs. Stone pavers offer a natural look and are sometimes installed with gravel around them. Both permeable pavers and brick driveways provide excellent drainage, which helps prevent flooding and reduce water runoff.

Gravel is the most economical and least expensive driveway material, costing between $1 and $3 per square foot. This is significantly cheaper than alternatives like asphalt or concrete. However, it's important to consider long-term costs, as gravel driveways require regular maintenance. You will likely need to add new gravel filling once or twice a year and regularly rake it to keep it level, which can add to the overall cost over time.