How a Storm Can Lead to a Sewer Backup

5/18/2021 (Permalink)

It is not uncommon after a large storm to find out your home has a flooded basement. But how does this actually happen? There are a few ways a large storm can lead to sewer backup. Here are three of the most common.

Poor Drainage Around the Home’s Foundation

In many cases, flooding in the basement can be caused by poor drainage around the home's foundation. This is caused when drainage spout or landscaping sloped so that water can flow towards, and pool against, the home. Water can then get into the basement through cracks in the foundation. Fortunately, a local restoration service can help with any clean-up measures and recommend mitigation steps for the future including the installation of a sump pump. You may also want to consider ensuring that drain spouts and landscaping slope away from the home.

Sewer System Overflow Backing

In many cases, stormwater ends up in the sewer system. Whether this is from pipes designed to funnel water away from the home, storm grates in the city street, or drainage ditches, the system can fill to the point of overflowing and begin to back up into the home. This is one way you may find you have a flooded basement.

City Storm Drain Overflow

Many older homes in urban areas have pipes designed to funnel stormwater away from the property and into the city storm system. During times of heavy rainstorms, this system can become overburdened and the water can start backing up through these pipes into the home.
In many cases, a flooded basement can be caused by overflow from a sewage system, a storm drain system, or even poor drainage around the house. If you experience these problems, it is best to call a professional for an assessment and any recommended solutions. With proper mitigation steps, you can help prevent these problems in the future.