Construction of the Kenyatta Avenue–Upper Hill Viaduct has entered the superstructure phase, marking a significant step towards easing traffic congestion between Nairobi’s central business district and Upper Hill.
Interior Principal Secretary Raymond Omollo said the project reflects the Government’s focus on developing efficient and reliable transport infrastructure to support economic activity and improve mobility within the capital.
The elevated road is being implemented by the Kenya Urban Roads Authority (KURA) and is designed to bypass several busy intersections that have contributed to traffic delays along the corridor.
According to Omollo, the viaduct will begin at the Kenyatta Avenue Roundabout, where motorists will access a ramp leading onto the elevated section. It will then extend along Kenyatta Avenue before passing over Processional Way, Mamlaka Road and Nyerere Road.
The route will continue past All Saints' Cathedral before terminating near the Integrity Centre along Jakaya Kikwete Road. It will connect with traffic heading towards Ngong Road and Valley Road, creating an alternative route for motorists travelling between the CBD and Upper Hill.
Omollo said construction has progressed to the stage where reinforced concrete piers and pier caps have been completed, while precast girders are now being installed across the piers.
The girders will form the main structural framework supporting the elevated roadway as construction moves towards subsequent stages.
Beyond improving vehicle movement, the project is expected to promote safer and more inclusive transport through the incorporation of dedicated cycle lanes and pedestrian walkways.
Omollo said improved connectivity would support Nairobi’s wider urban transport network and contribute to a city where residents, businesses and visitors can move more efficiently.
The PS linked the infrastructure project to Nairobi’s growing 24-hour economy, noting that reliable transport corridors are essential for businesses and workers operating beyond conventional daytime hours.
The State Department for Internal Security and National Administration, he added, will continue supporting the project through security coordination, road safety awareness and protection of critical public infrastructure.
The viaduct is therefore expected to serve not only as a traffic management project but also as part of broader efforts to improve Nairobi’s urban mobility and support future commercial growth.