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Permeable pavement is critical for stormwater control. This type of material enables the drainage of stormwater runoff into the underlying soil beneath the pavement. This is due to the pavement’s unique design that allows water to run through it. At the same time, permeable pavement acts as a filter to prevent sediment, car oil, and other potential pollutants from contaminating the soil below. The majority of permeable pavement solutions also feature an underdrain leading to the drainage system.
If you need permeable pavement in Nashville for your property, the professionals at Nashville Siteworks can help install a new system that allows for optimal stormwater control.
Unlike other types of pavement, permeable pavement includes a number of voids that allow the passage of stormwater. As water travels through the pavement, an underlying stone reservoir infiltrates and stores it.
These surfaces comprise a surface pavement layer, along with a filter layer and a stone aggregate reservoir layer. The reservoir layer functions as the temporary storage location for water while it travels through the pavement. In some cases, permeable pavement systems may be devoid of an underdrain if the soil allows for sufficient infiltration of stormwater runoff.
Various layers of different sizes consisting of soils and gravel gradually filter all pollutants out of the stormwater.
If you have a permeable pavement system installed for your property, there are certain maintenance requirements to keep in mind.
One item to consider is the maintenance of turf pavers. These pavement systems require occasional fertilization, irrigation, and mowing. Although it’s possible to plow turf pavers, you will also need to use skids.
Also, it’s important to avoid applying salt and sand to the installation. Additionally, you must stabilize adjacent areas with plenty of vegetation to keep sediment-filled runoff from clogging the top of the pavement.
To properly clean these systems, you will need to use high-pressure hosing or vacuum-style sweepers.
If you need maintenance for permeable pavement in Nashville, we can provide these services and ensure your installation stays in great shape.
Permeable pavement is suitable for many applications, but not all. There are some factors that can help you decide whether permeable pavement is ideal for stormwater control. These include the following:
Prior to installing permeable pavement, areas may require infiltration testing. While the condition of the underlying soil doesn’t dictate whether or not you should install permeable pavement, it could influence the design.
Facilities using permeable pavement need to be accessible to different types of equipment for upkeep.
The subgrade of permeable pavement must be consistently separate from both the bedrock and water table, with a minimum required distance of two feet between the bedrock and water table and the bottom of the permeable pavement area.
Areas with permeable pavement may require pre-treatment sumps or strips and sediment source control measures if there’s a greater risk of clogging due to particulates.
The pavement installation area must also not have too steep of a slope, as this can prevent the permeable pavement system from properly storing stormwater runoff. It could also cause the base materials and the surface of the pavement to shift. Ultimately, the slope of the pavement shouldn’t exceed 10% to allow for sufficient infiltration, but should ideally be 1% or less.
The installation area for permeable pavement needs to be away from public underground utilities along with corresponding easements. The area should also be away from private utilities if possible.
The amount of vehicle traffic the permeable pavement sees will further influence the structural design of the pavement system. This could include the thickness for each layer of the system along with the required soil density, the latter of which could impact infiltration capabilities.
If you’re in need of a dependable permeable pavement system for your property in or around Nashville, we can install and provide maintenance services. We’ll determine what you specifically require and can ensure you benefit from a system that allows for complete stormwater control. To learn more about our capabilities and to find out what we can do for you, contact us today.
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