Motorists using the Thika Superhighway should expect traffic disruptions for five weeks after the Kenya National Highways Authority (KeNHA) announced plans to close service lanes at Kihunguro.
The closure will take effect on Sunday, November 15, and run until December 20, 2026, to allow contractors to carry out bridge construction works.
KeNHA Director General Luka Kimeli said on Monday, November 9, that the works will involve pre-assembly and hoisting of the bridge superstructure.
The affected section will be the Thika-bound service lanes at Kihunguro. Motorists travelling from Nairobi towards Thika will therefore have to use alternative routes during the construction period.
According to KeNHA, traffic will be diverted through Shell Petrol Station before joining the highway again. Drivers can also use the road behind the petrol station to reconnect with the Thika Superhighway.
The authority has urged motorists to slow down when approaching the construction area and follow the temporary traffic arrangements to avoid accidents and unnecessary congestion.
Police officers and traffic marshals will also be deployed to guide motorists through the affected section.
KeNHA has asked road users to cooperate with the officers and follow instructions while the works are ongoing.
The Kihunguro project is part of wider road improvement works along the Nairobi-Thika route.
Other planned projects include the construction of bus bays at Roysambu and Githurai along the Nairobi-Ruiru section. The facilities are expected to provide designated points for public service vehicles to pick up and drop off passengers.
The Ruiru-Thika section is also earmarked for further improvements, including a climbing lane at Blue Post in Thika and bus bays at Witeithie.