Our Trivia Series continues with a collection of fun facts you may not have known about catch basins.
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A sinkhole has developed adjacent to the catch basin.
Catch basins (commonly referred to as storm basins or storm sewers) are underground chambers topped with grates. They allow sand, sediment, and other materials to settle out of storm water before it travels to a detention basin or drain lines. In parking lots, catch basins are installed to collect water from low-lying areas to prevent flooding or other water damage.
- Over time, catch basins may need adjusting to ensure that they are properly draining water from the surface. Common causes of deterioration include weak mortar, water erosion, salt, recurrent freeze-thaw cycles, age and heavy vehicle traffic, to name a few.
- There are varying repairs for catch basins based on the severity of damage: full catch basin rebuild, top-half rebuild, and concrete ring replacements.
- A sinkhole is often the sign of a damaged catch basin and poses a major liability to property owners.
- Sinkholes can develop in areas adjacent to catch basins because pipes, leading to or from the basin, collapse and water begins to erode the stone base supporting the asphalt.
- Once the deteriorated catch basin has been repaired, the area surrounding the basin can be repaired with either asphalt or concrete. Concrete provides an added benefit in that it is more durable than asphalt.
- If there is no proper drainage in a parking lot or there is simply a low-lying area that holds water, a new catch basin can be installed.
- In addition to performing remedial repairs on catch basins, regular cleaning is essential in helping catch basins function properly. This repair method involves the use of a vacuum truck to suck garbage, leaves, and mud from the bottom of the basin.
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