The Hidden Dangers of Driving Over Manhole Covers

Driving over a manhole cover may seem like an ordinary event that happens frequently in urban environments, but it can have various impacts on your vehicle, depending on factors such as the condition of the cover, the speed of the vehicle, and the state of the road. While it’s a minor nuisance to many, it’s worth understanding what actually happens when you drive over a manhole cover, especially for the long-term health of your car.

First, when you drive over a manhole cover, the impact is usually felt in the suspension system. The suspension is designed to absorb shocks and vibrations from the road, ensuring that the vehicle stays stable and comfortable for the driver. However, manhole covers are often positioned at a different level from the surrounding road, which means that when a vehicle passes over it, the suspension system has to absorb the sudden elevation change. This can cause wear and tear on the suspension components over time, especially if you are driving at high speeds or regularly encounter poorly aligned manhole covers.

If the manhole cover is damaged or not properly aligned, the situation becomes more problematic. A sunken or raised manhole cover can cause more significant jolts to the vehicle, especially to the tires and wheels. The sudden impact can result in tire damage, including punctures, cuts, or sidewall bulges. Repeated encounters with uneven manhole covers can lead to misalignment of the wheels, which can affect the vehicle’s steering and handling.

Additionally, the shock from driving over a manhole cover can put pressure on the car’s drivetrain, particularly if you’re driving over the cover at high speeds. Over time, this repeated stress may cause misalignment or damage to the engine components, transmission, or exhaust system, particularly if the vehicle is older or has underlying mechanical issues.

Another potential issue involves the alignment of the car’s body and frame. If you regularly hit uneven manhole covers or potholes, it may result in a gradual misalignment of the car’s frame. Misalignment can lead to uneven tire wear and may impact the car’s performance, making it less fuel-efficient and more prone to breakdowns.

Finally, while hitting a manhole cover can cause temporary discomfort, such as jolts or vibrations, the long-term effects are usually linked to the cumulative impact on your vehicle’s suspension system, tires, and other critical components. To mitigate the damage, it’s best to drive slowly and cautiously over manhole covers, avoid any unnecessary rough impacts, and regularly inspect your vehicle for alignment issues or suspension wear.