Projects
Nairobi Viaduct Set to Open in Dec After Five-Year Delay
The Kenyatta Avenue–Upper Hill Viaduct is due to open in December 2026.
Nairobi motorists are set for relief as the Kenyatta Avenue–Upper Hill Viaduct nears completion, with the project expected to ease congestion between the city centre and Upper Hill.
The Sh3 billion elevated road — designed to carry vehicles above the crush of ground-level traffic — mirrors the Nairobi Expressway’s raised sections and is among the most ambitious upgrades to the capital’s transport network in recent years.
The viaduct runs from the Integrity Centre towards the Serena Hotel on Valley Road, forming part of the Valley Road–Kenyatta Avenue/Ngong/Nyerere Interchange project.
The project, which began in September 2020, was delayed for several years due to payment disputes with contractors before works resumed in July 2025.
“The viaduct was delayed for years, but before December, I will open it. People going to the CBD will stop being disturbed by traffic jams,” President William Ruto said during a recent inspection tour of ongoing road infrastructure projects in Nairobi.
President William Ruto noted that the All Saints Viaduct, as the project has been named, is one of several flagship road projects aimed at improving connectivity across Nairobi and easing congestion along one of the city’s busiest traffic corridors.
“By December, Nairobi will be different,” he said, adding that the government is investing heavily in roads, street lighting and other infrastructure projects to modernise the capital.
The scope of the project goes beyond roadworks for vehicles, with walkways, cycling lanes and new street lighting planned to enhance safety for pedestrians and cyclists.
Upon its completion, the Kenyatta Avenue–Upper Hill Viaduct is expected to improve access into the city centre and benefit thousands of motorists who use the route daily.
The project comes as the government intensifies upgrades on key Nairobi roads, including rehabilitation works along Valley Road–Kenyatta Avenue and sections of Ngong Road, as part of a broader campaign to modernise the city’s road network.
RELATED: Ngong Road Flyover Opens in Push to Ease Traffic Gridlock
At the Ngong Road–Naivasha Road junction, near Junction Mall, work has just been completed on a major four-lane flyover designed to ease one of the city’s worst choke points.
The four-lane structure, which opened last month, comes with improved junctions, pedestrian walkways and cycling lanes, all aimed at easing congestion across the city.
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