How Important Is Drainage Planning?
It is extremely important to have a drainage plan in place before paving a driveway. Implementing a drainage plan is the most important aspect of installing a driveway because if it’s not done correctly, parts of the driveway may have to be removed or replaced in order for it to be fixed. That will only lead to bigger costs for the homeowner.
Ways to Avoid Drainage Problems
One of the most effective ways to avoid drainage problems when installing a driveway is to make sure the asphalt has the correct pitch. If your driveway is properly graded with the correct pitch, water will run off of the surface to the nearest low spot. If it’s done incorrectly, the water may pool on the asphalt.
Trenches & Swales
Trench drains are one of the best options for most homeowners who have a driveway that is sloped towards their home. Typically trench drains are installed several feet away from the cement floor of the garage. Water will flow into the trench drain and will be redirected through a pipe which is connected to the drain. The piping will lead to the side of the driveway and is pitched towards a low point, normally located on the side of the homeowner’s house or in the backyard. A solid pipe is used for collecting and redirecting the water. Swails are channels built adjacent to driveways often lined with gravel or larger stones. They’re another effective alternative chosen by many homeowners. The only difference between a swale and trench drain is swales sit on top of the soil and are lined with large rocks, riprap, or gravel. They do not need a pipe to redirect water.