The Kenya National Highways Authority (KeNHA) has announced plans to upgrade Kiambu Road into a modern four-lane dual carriageway, in a major infrastructure push aimed at easing traffic congestion and improving mobility in the Nairobi Metropolitan region.
According to a public notice, the project will cover the Pangani–Muthaiga–Kiambu–Ndumberi (B32) Road and adjacent road networks. The state agency has invited eligible Chinese contractors to submit prequalification applications for the project under Tender No. KeNHA/2889/2025, with the submission deadline set for Friday, August 22, 2025, at 11 am.
The project, which will be financed through a loan from the China Export-Import (EXIM) Bank, aims to enhance traffic flow along the Kiambu Road corridor and its linkages to the Thika Superhighway. It is part of the government’s broader agenda to modernize urban road infrastructure to support economic growth.
KeNHA stated that the project will not only improve service levels and road safety but also enhance accessibility through the construction of service lanes and non-motorised transport facilities such as walkways and cycle tracks.
The works, to be implemented under the FIDIC Silver Book standards, will include the expansion of the existing two-lane road into a four-lane dual carriageway. It will also involve the construction of interchanges, new bridges, six pedestrian footbridges, bus bays, and upgraded junctions. Key areas to be covered include Muthaiga to Ndumberi, Ridgeways Road, the Kiambu-Thika Road link, and UN Avenue through Runda.
KeNHA highlighted that only Chinese contractors or consortia led by Chinese firms are eligible to apply, as per the financing agreement. Applicants must meet strict requirements on financial and technical capacity.
Interested firms can access the prequalification documents via the KeNHA website or the Public Procurement portal. Submissions must be made in person to KeNHA’s headquarters on Airport South Road, Nairobi.
The project is expected to take 36 months to complete, with an additional 24-month defects notification period. It forms part of Kenya’s commitment to transform critical road corridors and reduce urban traffic bottlenecks.
