The sudden emergence of a sinkhole on the Nairobi-Nakuru highway at the Eveready Roundabout in Nakuru City temporarily closed the critical route, drawing national attention to this hazardous phenomenon. The Kenya National Highways Authority (KeNHA) later deemed the stretch safe after engineers responded to the collapse, which occurred with little to no warning.

• Sinkholes are ground depressions caused by the collapse of a surface layer, ranging from a few feet to several meters in depth and width.
• The Nakuru - Eldoret highway and other roads traversing the Rift Valley are susceptible due to underlying soluble rocks like limestone and volcanic ash, which are eroded by groundwater, forming underground voids.
• KeNHA cited the behavior of pyroducts upstream – natural conduits from past volcanic activity – as a possible contributing factor, especially during rainy seasons when increased water flow accelerates erosion, weakening these underground tubes.