The Kenya National Highways Authority (KeNHA) has announced a temporary closure of the Southern Bypass, with motorists urged to plan accordingly.
In a notice on Monday, October 19, 2026, the authority said the closure will affect the bypass from Ole Sereni Interchange to Kikuyu Town.
According to KeNHA, the road will be closed from Saturday, October 25 to pave the way for the 2026 Standard Chartered Nairobi Marathon.
The road will open on Sunday at 2 pm.
“The Kenya National Highways Authority (KeNHA) wishes to notify the Public that there will be a temporary closure of Nairobi Southern Bypass from Ole Sereni Interchange to Kikuyu Town on Saturday, October 24, 2026 at Midnight to Sunday October 25, 2026 at 2.00pm,” KeNHA stated.
Following the closure, the authority advised motorists using the affected areas to use alternative routes.
Those travelling from Kikuyu to Mombasa Road were urged to use the Waiyaki Way during this period, while those from Kikuyu to Karen were directed to use Dagoretti Road as an alternative.
Additionally, drives and other road users were advised to follow traffic rules during the period and also follow instructions from traffic marshals who will be deployed.
