Motorists using Mombasa Road have been warned to expect traffic disruptions after the Kenya National Highways Authority (KeNHA) announced a temporary partial closure along the busy route.
The affected section is located at the Cabanas-Eastern Bypass off-ramp on the JKIA-bound side of Mombasa Road.
The closure will begin on Thursday, September 17, 2026, and is expected to remain in place until Thursday, October 22, 2026.
KeNHA said the temporary traffic changes will allow contractors to construct a box drain along the affected section. The works are part of ongoing efforts to improve drainage and maintain key road infrastructure.
During the construction period, motorists travelling towards JKIA from the Eastern Bypass will not use the normal section of the road.
Instead, they will be directed through a designated diversion lane set up to allow traffic to continue moving while the works are underway.
The authority said traffic marshals will be stationed at the site to guide motorists and help manage the flow of vehicles.
Police officers will also be involved in managing traffic and ensuring that road users follow the temporary arrangements.
“Motorists intending to use Mombasa Road (JKIA-bound) from Eastern Bypass will use the provided diversion lane and follow the proposed directions by traffic marshals,” KeNHA stated.
Motorists have been asked to follow the traffic management plan and cooperate with the officers and marshals at the site.
Drivers using the route during the construction period are also expected to exercise caution as they approach the affected section.
The partial closure is likely to affect one of Nairobi’s important traffic corridors, which connects the Eastern Bypass with JKIA and other parts of the city.
KeNHA has not indicated that the entire road will be closed, with traffic expected to continue using the provided diversion.
Normal traffic operations will resume once the construction works are completed, according to the authority.
The project comes as KeNHA continues to inspect, maintain and rehabilitate major roads in Nairobi and neighbouring counties.
In Kiambu County, a KeNHA team recently inspected several road sections to assess their condition, monitor maintenance work and identify areas that require attention.
The inspection was led by Nairobi Regional Director Francis Kimata and covered the Muthaiga-Kiambu, Kiambu-Limuru, Ndenderu-Kamandura and Ruaka-Ndenderu-Gitaru Western Bypass roads.
The assessment also looked at road lighting, carriageway maintenance, drainage improvements, vegetation control and rehabilitation of worn-out sections. KeNHA carried out some of the works in collaboration with the Kiambu County Government.
The authority said the interventions are aimed at improving road safety, strengthening infrastructure and enhancing connectivity as the region continues to grow.
