Parking Lot Drainage: Why it is Important

Katie Thompson
Last Updated: January 11, 2024

When it comes to maintaining a parking lot, there are many factors to consider. From user friendly designs to regular maintenance and safety measures, there are a lot of things that go into a parking lot. One aspect that is often overlooked is parking lot drainage. However, proper drainage is crucial for the longevity and safety of your parking lot. In this article, we will explore why parking lot drainage matters and how it can affect your parking lot maintenance.

Why is Parking Lot Drainage Important?

Prevents Water Damage

One of the main reasons why parking lot drainage is important is to prevent water damage. Without proper drainage, water can pool and collect on your parking lot, causing damage to the surface and potentially leading to cracks and potholes. This can be especially problematic in areas with heavy rainfall or snow, as the excess water can seep into the pavement and cause it to deteriorate over time.

Improves Safety

Proper drainage also plays a crucial role in maintaining the safety of your parking lot. Standing water can create hazardous conditions for both drivers and pedestrians. It can also lead to slippery surfaces, increasing the risk of accidents and injuries. By ensuring proper drainage, you can prevent these safety hazards and create a safer environment for everyone using your parking lot.

Extends the Lifespan of Your Parking Lot

Investing in proper drainage can also help extend the lifespan of your parking lot. As mentioned earlier, standing water can cause damage to the pavement, leading to cracks and potholes. These issues can worsen over time and eventually require costly repairs or even a complete replacement of your parking lot. By implementing proper drainage, you can prevent these issues and save money over the long term.

What are the Components of Parking Lot Drainage?

Parking Lot Drainage Grates

Parking lot drainage grates are an essential component of proper drainage. These grates are typically installed at the lowest points of the parking lot, allowing water to flow into the drainage system. They come in assorted sizes and materials, such as cast iron, plastic, and steel, and can be customized to fit the specific needs of your parking lot.

Parking Lot located Edmonton, Alberta

Catch Basins

Catch basins are another crucial component of parking lot drainage. These structures are designed to collect and redirect water away from the parking lot. They are typically installed at the lowest points of the parking lot and are connected to a network of pipes that lead to a drainage system. Catch basins come in assorted sizes and shapes, and their placement and size will depend on the size and layout of your parking lot.

Drainage Pipes

Drainage pipes are the final piece of the puzzle when it comes to parking lot drainage. These pipes are responsible for carrying the water collected by the catch basins away from the parking lot and into a drainage system. They come in assorted sizes and materials, such as PVC, concrete, and corrugated metal, and their placement and size will depend on the specific needs of your parking lot.

City of Edmonton Manhole cover

How Can Poor Drainage Affect Parking Lot Maintenance?

Potholes and Cracks

As mentioned earlier, poor drainage can lead to standing water, which can cause damage to the pavement. Over time, this damage can worsen and result in potholes and cracks. These issues not only affect the appearance of your parking lot but can also create safety hazards for drivers and pedestrians. Repairing potholes and cracks can be costly and time-consuming, making proper drainage a crucial aspect of parking lot maintenance.

Erosion and Sinkholes

Poor drainage can also lead to erosion and sinkholes in your parking lot. When water is not properly redirected away from the pavement, it can cause the soil underneath to erode, creating voids and sinkholes. These issues can be dangerous and require immediate attention to prevent further damage. By implementing proper drainage, you can prevent erosion and sinkholes and maintain the structural integrity of your parking lot.

Damage to Landscaping

In addition to damaging the pavement, poor drainage can also affect the landscaping around your parking lot. Excess water can cause soil erosion, which can damage plants and trees. It can also lead to standing water in landscaped areas, creating a breeding ground for mosquitoes and other pests. By ensuring proper drainage, you can protect your landscaping and maintain a clean and attractive appearance for your parking lot.

Parking Lot located Downtown, Edmonton

How Can You Improve Parking Lot Drainage?

Regular Maintenance

Regular maintenance is crucial for ensuring proper drainage in your parking lot. This includes cleaning out catch basins and removing any debris or obstructions from drainage pipes. It is also essential to inspect the condition of parking lot drainage grates and replace any damaged or worn-out components.

Inspection and Repair

In addition to regular maintenance, it is also important to have your parking lot inspected on a regular basis. It is important to identify any potential issues with your drainage system and make necessary repairs or adjustments to ensure proper drainage.

Consider Installing a Drainage System

If your parking lot does not have a proper drainage system in place, it may be worth considering installing one. A civil engineer can assess the layout and needs of your parking lot and design a custom drainage system that will effectively redirect water away from the pavement. This can help prevent future issues and improve the overall maintenance of your parking lot.

The Path Forward

Proper parking lot drainage is crucial for maintaining the safety and longevity of your parking lot. By preventing water damage, improving safety, and extending the lifespan of your parking lot, proper drainage can save you time and money over the long term. By understanding the components of parking lot drainage and implementing regular maintenance and inspections, you can ensure that your parking lot remains in good condition for years to come.

If you are looking for experienced civil engineering company to guide you through development projects in Edmonton and across Alberta, be sure to engage with Bolson Engineering and Environmental Services. We will be happy to consult with you as your trusted engineering partner.

About the author

With more than 12 years in human resources, Katie brings important process management skills to the table. Her direct experience with senior management in the construction industry helps her understand your engineering project goals. Her creative forward-thinking propels Bolson toward exciting new business opportunities.

Simplified solutions

Your simplified engineering projects
in two words:
Bolson Engineering

Built for legacy with passionate expert engineering services