When someone says, “parking lot construction”, most people immediately envision the application of heavy, dark black asphalt. Others think of newly painted parking spots or asphalt curbing that safeguards the property’s landscaping. Yet there is one critical component of a parking lot that is often overlooked: parking lot drainage. Most do not even consider the importance of parking lot drainage as it is rarely an issue. If performed correctly, parking lot drainage is mostly invisible. However, when parking lot drainage is not done in the proper manner, or completely overlooked, the property owner is left with a nasty water problem. Though a small amount of water on rigid asphalt might not seem like a threat, it really can compromise the parking lot’s integrity.

Why Parking Lot Drainage is Critically Important

When a parking lot has ample drainage, it will stand the test of time. As water collects on the surface of the lot’s asphalt, it causes issues for vehicles, pedestrians and the asphalt itself. Standing water will eventually damage the surface and result in costly repairs. This is precisely why it is prudent to handle the nuances of parking lot drainage before it actually becomes an issue.

Indications That Help is Necessary

If you spot pooling water or water moving down the middle section of the parking lot, it is a sign that the drainage situation must be addressed. Unfortunately, the signs of poor drainage are not always crystal clear. Sometimes, clues manifest in the form of sand, rocks or dusty residue across the low lying areas of the paved surface. These are the result of water breaking down the asphalt and transporting sand, silt and dirt from the asphalt. Once it pools in a space and dries, it leaves the residue behind.

Solutions to Parking Lot Drainage Challenges

A thorough and proper installation of a parking lot’s drainage system hinges on a series of components working in unison with one another.

Asphalt Curbing – The installation of curbing can ameliorate the flow of water off the lot and into an inlet or grassy space. Water travels to the curb line and then moves to the designated drainage point.

Parking Lot Slope – A parking lot’s slope plays a meaningful role in the drainage system’s ability to properly dispose of water. Parking lot slopes must be constructed to send water to the intended areas without obstruction.

Drains and Inlets – The strategic placement of inlets and drains in your parking lot will allow water enough room to exit the parking lot’s surface.

If you are interested improving your parking lot’s drainage system, reach out to Sealcoating America today.

Sealcoating America - Parking Lot Drainage