The Eldoret–Nakuru Highway has been partially closed after a sinkhole suddenly opened up on the road, forcing the Kenya National Highways Authority (KeNHA) to restrict traffic in the area.

The closure has left motorists stranded and raised concerns about road safety, with many Kenyans asking what exactly causes sinkholes and how people can stay safe when they occur.

What Causes Sinkholes?

Experts explain that sinkholes are formed when the ground beneath the surface becomes weak and collapses.

This often happens when water—whether from heavy rains, burst pipes, or underground streams—gradually erodes soft rocks like limestone.Over time, the soil and rocks wash away, creating hidden empty spaces underground.

When the surface can no longer hold, it suddenly caves in, creating a hole.In Kenya, periods of heavy rainfall can speed up this process.

Roads are especially vulnerable because of constant pressure from vehicles, which can make the ground collapse faster once it is weakened.

How to Navigate When Sinkholes Form

Sinkholes are unpredictable, but there are safety measures that motorists and pedestrians can follow:

Obey road closures: If authorities like KeNHA close a section, do not attempt to bypass barriers. The ground around a sinkhole may still be unstable.

Watch for warning signs: Cracks on the road, sagging sections, or sudden depressions in the ground could indicate danger.\

Avoid standing water: Sometimes sinkholes form under waterlogged areas, making them hard to see.

Report unusual ground movement: If locals notice strange vibrations, sudden cracks, or sinking soil, it should be reported immediately.

The Human Impact

For many people who use the Nakuru–Eldoret road daily, the closure has disrupted travel and trade.

Long-distance truck drivers now face delays, while passengers have to adjust to rerouted traffic.

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Locals in nearby towns worry about the safety of children walking along weakened roads, especially during the rainy season. "We depend on this highway every day. It is scary to think the ground can just open like that,” said one passenger stranded at a roadblock.

Quick Safety Checklist for Motorists

If you are on the road and suspect a sinkhole nearby, remember: 

Stop immediately if the road ahead looks cracked or sinking.

Do not drive through barricades, even if others try to.

Keep headlights on in fog or heavy rain to spot surface changes.

Maintain a safe distance between vehicles in case of sudden stops.

Use alternative routes when announced by KeNHA.