Home Biggest projects Nairobi Western Bypass project timeline and all you need to know

Nairobi Western Bypass project timeline and all you need to know

The Nairobi Western bypass project is road project being constructed by the government of Kenya through the Kenya National Highways Authority (KeNHA) at a cost of US $157.1m. The 16.79km dual carriageway which is located in Kiambu county will start in Gitaru through Wangige and Ndenderu and terminate at Ruaka.

The Nairobi Western Bypass project also include construction of seven grade interchanges at Gitaru, Lower Kabete, Wangige, Kihara, Ndenderu, Rumenye, and Ruaka, as well as the construction of ten overpasses and five underpasses. Moreover, stormwater drainage systems and box culverts will be installed in designated areas.

The project also involves construction an additional 17.31km of service roads. Pedestrian barriers will also be installed in the center to prevent people from passing through unauthorized areas.

Upon completion, it is expected to ease traffic congestion around Nairobi City, ensure rapid economic growth around the areas near the road, improve the safety of pedestrians and other non-motorized road users and ensure unimpeded traffic in the area. Below is the project’s timeline and all you need to know:

Also Read: Nairobi Expressway project timeline and all you need to know


China Road and Bridge Corporation (CRBC) was selected as the contractor and began construction. The project is being funded partly by the China Exim Bank and the national government of Kenya and is initially set for completion in 2022.


In July, Transport Cabinet Secretary James Macharia announced that 64% of roadworks on the Nairobi Western bypass is complete and the remaining will be cleared in the next five months. This means that the road project would be completed in December, almost a year ahead of schedule.

“By constructing this road, we have a complete Nairobi circular and you can now go around Nairobi without passing through the city centre. Just like while coming from Mombasa Road, you can use Southern Bypass as you go around Nairobi. This will create seamless connectivity within the city,” said Macharia.

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Dennis Ayemba
Country/ Features Editor, Kenya


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