Inside the 25.5 kilometre Kiambu Road expansion plan

A dispatch issued on Tuesday said the project will see the road expanded from a two-lane single carriageway to a four-lane dual carriageway.

The Kenya National Highways Authority (KeNHA), the executing agency, says that the road will include 2-lane service roads on both sides and pedestrian walkways on both sides.

This will include the construction of new bridges across Muthaiga Golf Club Spur, Mua Road Overpass, DCI Overpass, Coffee Garden U-turn, Tala Road Overpass Bridge, Ridgeways U–turn Underpass Bridge, Runda U-turn and Kirigiti Junction Bridge.

It will also include the construction of interchanges at Kamiti Road/Kiambu Road Interchange, Banana Road/Kiambu Road Interchange and Northern Bypass/Kiambu Road Interchange.

Six footbridges at various locations along the road will also be erected.

The main Trunk Road will connect the Muthaiga - Kirigiti junction, Kirigiti JN - Kiambu Town - Governor’s Office and the Governor’s Office - Ndumberi – Sasini.

Bypasses to be constructed are Githunguri Road - Sasini - Boma Road, and the Riabai - Kiriguini B Road

Spur roads, a secondary road that branches off from a main road, will include the Ridgeways Road from Kiambu Road to Thika Road (Roasters), Evergreen – UN Avenue through Runda, Wambui Road, Muthaiga North, Mua Park Road/Serengeti Avenue, KIST JN – Kamiti Road, JN Boma Road - Kirigiti and access to other public institutions and key settlements.

KeNHA had invited tender applications for contractors seeking to spearhead the project, but has not yet disclosed who has been awarded the tender despite the window closing on August 22, 2025.

Applicants were required to demonstrate that they are qualified to perform the services (technical and financial capabilities, description of similar assignments, experience in similar assignments/conditions, availability of appropriate skills among staff, etc.).

They were also required to show proof that they have achieved a minimum annual construction turnover of Ksh.32.2 billion (USD 250 million) for the last five (5) years, calculated as the sum of all total certified annual payments received for contracts in progress and/or completed, divided by the number of years.

"The government had received commitment from China through the China Export Import (EXIM) Bank to finance the cost of the road's capacity enhancement. The financing agreements shall be signed upon finalization of the commercial contract," KeNHA noted in a statement.

The upgrading of the road was expected to take place early this year, but the Kenya National Highways Authority (KeNHA) cancelled the tender shortly after placing an ad for the project.

The advertisement drew criticism from the public for limiting bidders to Chinese companies, citing that it violated Kenya's Public Procurement and Asset Disposal Act, which gives preference to Kenyan companies in the procurement process.