KeNHA Announces Partial Closure Of Thika–Garissa Road For Three Months
The Kenya National Highways Authority (KeNHA) has announced that part of the busy Thika–Garissa (A3) Road will be partially closed for three months to allow for crucial bridge maintenance works.
In a public notice issued on Monday, July 21, KeNHA said the closure will affect the section near Mbakini Centre, where maintenance will be carried out on the Kavenge (Mbakini) Bridge. The rehabilitation works are scheduled to begin on Saturday, July 26, 2025, and will continue until Saturday, November 8, 2025.
The repair project involves the restoration of the bridge’s deck and girders—critical components that support the bridge’s weight and the vehicles that use it. Though not visible to everyday motorists, girders are the main horizontal beams beneath the bridge deck and are essential for the structure’s stability.
KeNHA has advised motorists using the Thika–Garissa Road to expect slower traffic, possible diversions, and longer travel times during the period. A traffic management plan is currently being developed to reduce congestion and guide road users through alternative routes.
“To ensure the smooth flow of traffic, police officers and traffic marshals will be deployed along the affected stretch to assist and direct motorists,” the authority said in part of the notice.
KeNHA has urged all road users to follow instructions on-site and cooperate with officers to ensure their safety and that of the construction team. The installation and replacement of the bridge girders—likely made of steel—will take time, as the process involves removing old parts, conducting repairs, and placing the new components with precision.
Engineers working on the project say the repairs cannot be rushed, as bridge safety depends heavily on the correct positioning and installation of its structural elements.
The road section serves as a key transport corridor for motorists and commercial transporters traveling between central Kenya and the eastern region, making the ongoing works crucial for long-term road safety and durability.