KeNHA has scheduled bridge works at Kihunguro along the Thika Superhighway.
KeNHA will close Thika-bound service lanes from November 15 to December 20, 2026, for bridge works and divert motorists via Shell Petrol Station.
The Kenya National Highways Authority (KeNHA) has announced a five-week Kihunguro lane closure on the Thika Superhighway. The disruption will affect Thika-bound service lanes from November 15 to December 20, 2026.
KeNHA Director General Luka Kimeli announced the closure on Monday, November 9. He said contractors would undertake bridge construction, including pre-assembly and lifting the bridge superstructure into position.
Motorists travelling from Nairobi towards Thika will therefore need to use designated diversions around the affected section. The closure concerns the service lanes at Kihunguro, rather than the entire superhighway.
Kihunguro lane closure: diversion routes
KeNHA will direct Nairobi–Thika traffic through Shell Petrol Station before motorists rejoin the highway. Alternatively, drivers can use the road behind the station to reconnect with the Thika Superhighway.
The authority urged motorists to approach the work areas cautiously and follow its temporary traffic management plan. It also asked road users to cooperate with police officers and traffic marshals during the construction period.
Police and marshals will guide motorists through the affected section while contractors carry out the bridge works. KeNHA said the traffic arrangements aim to minimise accidents and congestion around the construction site during the five-week closure.
Other improvements along the Nairobi–Thika route
Meanwhile, the Kihunguro bridge works form part of wider maintenance and improvement projects along the Nairobi–Thika route. These projects aim to improve road safety and ease traffic movement.
Planned works on the Nairobi–Ruiru section include bus bays at Roysambu and Githurai. The bays will provide designated places for public service vehicles to pick up and drop off passengers.
The Ruiru–Thika section is also earmarked for improvements, including a climbing lane at Blue Post in Thika. Additional bus bays at Witeithie are part of the planned works on that stretch of the highway.
