- KeNHA announced a temporary closure of the Southern Bypass between Ole Sereni Interchange and Kikuyu Town to accommodate the 2026 Standard Chartered Nairobi Marathon
- The closure will run from midnight on Saturday, October 24, to 2pm on Sunday, October 25, 2026
- KeNHA listed several traffic diversions affecting motorists travelling to and from Kikuyu, Dagoretti, Karen, Langata Road and Mombasa Road
Amos Khaemba, a journalist at TUKO.co.ke, brings over four years of experience covering politics and current affairs in Kenya.
Nairobi - The Kenya National Highways Authority (KeNHA) has announced a temporary road closure along the Nairobi Southern Bypass to accommodate the 2026 Standard Chartered Nairobi Marathon.

Source: Twitter
In a public notice issued on Monday, October 19, KeNHA said the closure would cover the stretch from Ole Sereni Interchange to Kikuyu Town, taking effect at midnight on Saturday, October 24, and lifting at 2pm on Sunday, October 25.
"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," the authority stated.
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Alternative routes for motorists
KeNHA directed motorists affected by the closure to use Mombasa Road (A8) via Uhuru Highway as the primary alternative route in either direction.
The authority also urged all road users to observe traffic signs and comply with directions from traffic marshals and police officers deployed along the affected corridors.
The authority outlined specific diversions for drivers travelling across several routes.
Motorists heading from Kikuyu towards Dagoretti will be able to access that area via the Southern Bypass. Those coming from Karen, specifically the Kaninde area, and heading to Kikuyu will similarly be routed through the Southern Bypass via Dagoretti Road.
Between noon and 1:30pm on Sunday, October 25, drivers travelling from Kikuyu to Mombasa Road via the bypass will be required to take Waiyaki Way instead.
Motorists going from Dagoretti to Mombasa Road through the bypass will be advised to use either Waiyaki Way or proceed via Ngong Road and Mbagathi Way.
Drivers coming from Lenana along Ngong Road and heading to Kikuyu through the bypass will be required to use Waiyaki Way through Naivasha Road or James Gichuru Road. Those travelling from Langata Road near Galleria Mall towards Kikuyu will be directed through Karen.
Trailers and lorries moving from Waiyaki Way to Mombasa Road via the Southern Bypass will also be required to use Waiyaki Way as their designated diversion.
KeNHA additionally noted that traffic diversions affecting Karas, Shopping Centre, Langata Road near Galleria Mall, Langata Road near the CDF offices, Mombasa Road and Likoni Road would be in effect between noon and 12:30pm on Sunday, October 25.
Source: TUKO.co.ke
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