Not only is parking lot ponding a headache to drivers and pedestrians, but it is an issue that is often overlooked (and underestimated) by commercial property managers. Poor parking lot drainage can result in a variety of issues depending upon the severity, how long the water stands, temperature fluctuations, and how quickly things are resolved. The repercussions of parking lot ponding can cause:
- Physical parking lot damage. Asphalt (sealed or not) is not made to withstand long periods of standing water. Water compromises the sealant and penetrates the pavement, resulting in oxidation that causes your parking lot to deteriorate. As this happens, cracks often form, which can create further trouble for those in colder climates, like Minnesota.
- Liability issues. No one likes dodging puddles as they walk to and from their vehicle. Aside from the inconvenience, parking lot ponding can cause pedestrians to slip, twist an ankle in potholes, or slide on the oily seal coating that seeps from compromised asphalt. Additionally, cars can suffer from the same issues, and either situation can potentially result in lawsuits.
- Structural damage. When the foundation of a parking lot deals with water entering through the cracks and sticking around due to bad drainage, the freeze-thaw cycle becomes an issue. That trapped water will expand and contact based on the temperature, which compromises the pavement’s structure. Eventually, those cracks will get bigger and sinkholes or potholes might appear. It’s important to fix standing water issues promptly as your pavement might suffer consequences if you wait.
Proper parking lot grading and routine sealcoating can help prevent standing water issues. At Metro Paving, we’re here to help. Give us a call today!