By Bonface Mulyungi
The Kenya Urban Roads Authority has announced a partial closure of a section of Ngong Road and Naivasha Road near Junction Mall beginning Monday evening as final works on the highly anticipated viaduct project enter the last phase.
In a public notice by KURA Director General Silas Kinoti, the authority said the section will be partially closed from May 18 to May 31, 2026, between 8pm and 4am daily, to allow contractors undertake asphalt works.
“KURA wishes to notify the general public that section of Ngong Road/Naivasha Road at the Junction Mall will be partially closed from Monday May 18, 2026 till Sunday May 31, 2026 both days inclusive,” the notice read.
“The closing will be carried from 8pm to 4am to allow the contractor undertake asphalt works as part of the final finishing works. We urge motorists to use alternative routes and follow guidance by traffic police and marshals.”
The authority apologised for the inconvenience, saying the temporary disruption is necessary as it works to improve movement within the city.
“We apologise for the inconvenience caused as we endeavour to transform urban mobility,” the notice added.
The ongoing works form part of a major infrastructure project that is expected to significantly ease traffic congestion along the busy Ngong Road corridor, which has for years ranked among Nairobi’s worst traffic bottlenecks.
The project, spearheaded by KURA in partnership with the Spanish government, includes the construction of an elevated viaduct designed to separate through traffic from local traffic and eliminate frequent traffic conflicts that have slowed movement for thousands of commuters daily.
Officials involved in the project said the new design is intended to permanently address chronic gridlock experienced between Ngong Town and Nairobi’s central business district.
“This elevated road is what we are referring to as a viaduct, which is essentially a flyover,” an official involved in the project explained.
“This design allows one road to run above and another below at ground level, effectively eliminating traffic conflicts. Elevating the road prevents direct interaction between local and through traffic.”
The centrepiece of the project is an 820-metre dual carriageway viaduct featuring two lanes in each direction, complete with inbound and outbound approaches.
Beyond easing vehicle movement, the project also incorporates infrastructure for pedestrians and cyclists through the construction of footpaths and cycling lanes aimed at supporting Non-Motorized Transport users.
The Sh3.8 billion project, funded by the Spanish government, is also expected to support accessibility to the planned 60,000-seater Talanta Stadium, one of the government’s flagship sports infrastructure projects.
Officials noted that the road expansion and improved connectivity were carefully designed with the stadium in mind, especially during major sporting events.
Motorists and residents along the corridor have long endured hours of traffic congestion, particularly during peak hours, with journeys from Ngong Town into Nairobi often stretching beyond two hours.
However, authorities now say the completed project could slash travel time along the 26.5-kilometre stretch to less than 25 minutes.
