The Kenya National Highways Authority (KeNHA) has announced a partial closure of sections of Thika Superhighway for two months to facilitate ongoing construction works.
In a public notice issued on Monday, October 13, KeNHA stated that both the Nairobi-bound and Thika-bound service lanes at the Kihunguro area will be affected by the closure from Monday, October 20 to Saturday, December 20, 2025.
The disruption is necessary to allow for the construction of footbridge column bases and stub columns at the site an initiative aimed at improving pedestrian safety in the increasingly busy area.
“The Kenya National Highways Authority (KeNHA) wishes to notify the public that a section of Thika Superhighway (A2) at Kihunguro will experience traffic disruption along the Nairobi and Thika-bound service lanes,” the notice read in part.
Diversions and Traffic Guidelines
KeNHA has advised motorists to follow the designated traffic management plan and cooperate with traffic police and marshals who will be deployed at the site to manage flow and ensure safety.
Motorists using the Thika route are encouraged to stick to the main highway through the Kihunguro area and avoid the service lanes altogether.
- Nairobi-bound traffic: A diversion will be available at the Total Petrol Station, leading to Mark Hotel.
- Thika-bound traffic: The service lane will remain accessible only up to the Shell Petrol Station, after which motorists will have to rejoin the main highway briefly before re-accessing the service lane.
Why the Construction Matters
The footbridge at Kihunguro has long been anticipated, particularly due to frequent traffic jams and pedestrian safety concerns in the area.
The congestion is mainly caused by a busy zebra crossing in the middle of the highway, which has become a choke point—especially during rush hour.
Pedestrians crossing multiple lanes on both sides of the highway often slow down traffic significantly, necessitating the regular presence of traffic officers.
The ongoing works, including the installation of stub columns and column bases, are crucial to the bridge’s structural stability and long-term durability.
Although such structures typically take 3–4 weeks to build under standard conditions, the two-month closure suggests KeNHA is accounting for site-specific challenges, including heavy traffic flow and potential delays.
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