Signs of Drainage Issues in Parking Lots

Signs of Drainage Issues in Parking Lots

What are a few signs of drainage issues in your parking lot?

When designing a parking lot, you probably think of the rich black pavement with freshly painted lines. While visual appeal is important, parking lot drainage is another critical aspect you need to assess and maintain. Many property managers tend to overlook it since it is not as visible as other aspects of the parking lot.

Poor drainage can lead to severe issues that can increase the risk for accidents and compromise the structural integrity of the asphalt. The moment you notice any of these signs indicating drainage problems, call a professional to prevent irreversible consequences in your parking lot.

Residual Rocks and Sand

Dust and debris may accumulate in your parking lot. As your pavement ages, it can also shed some aggregate. If you see residual rocks and sand left in your parking lot, particularly after heavy rain or storm, this could be a sign of poor drainage.

This problem arises when there are low spots or depressions in your pavement, preventing the debris from draining away after the rain. These low spots often form due to poor asphalt compaction.

There are two possible remedies to the issue.

The first would be to install an asphalt patch on your existing parking lot pavement to cover up minor depressions. Given the root cause of the problem lies in your asphalt’s composition, this is only a temporary fix. A more permanent solution would be to remove the affected area to replace the asphalt subgrade and install a full-depth patch.

Pooling Water in the Same Area

If you notice water accumulating in your lot after a rain or storm, this may be a sign that you need to improve your parking lot drainage.

Pooled and standing water in asphalt pavement can generally arise from many reasons.

  • Low-quality asphalt repairs that may have affected the drainage system
  • Formation of low spots due to erosion
  • Issues with the asphalt subbase
  • Improper excavation of soil before asphalt installation

As more water accumulates on your parking lot surface, your pavement will grow weaker. The effects will worsen during the cold season since freezing water can increase the likelihood of cracks and potholes forming in your asphalt. Likewise, when water collects on your pavement, customers will have a more challenging time accessing your lot.

It is essential to implement proper drainage solutions to prevent pooled water from accumulating in your parking lot. Common remedies include parking lot sloping to drain water or asphalt curbing to direct the water flow to the proper inlets.

Blocked Drain Inlets

Drains and inlets are essential components of a parking lot drainage system since they help channel water in the right direction. You should inspect your drainage inlets to make sure they are free from blockages and obstructions.

Blocked inlets could prevent water from running off the surface, resulting in asphalt paving problems in the long run. The earlier you spot the issue, the easier the remedy will be. Make sure you have contractors check out your parking lot drainage to ensure everything is in place.

Get Parking Lot Drainage Solutions from Trusted Professionals

Proper drainage is an essential component in any parking lot since this allows your pavement to last longer. ACPLM offers a range of parking lot drainage solutions to keep your lot safe, durable, and in good condition.

Feel free to contact us today at 888-959-9637 to schedule a free consultation. We will inspect your parking lot to determine whether your parking lot drainage is in good condition.

ACPLM Webmaster

With over 50 years of combined industry experience, the pros at ACPLM are experts at what they do. Our full service concrete repair and pavement services range from complete installation to minor maintenance projects and everything in between. Call 888-959-9637 today to speak with one of our trusted advisers.