Major construction is underway on the A8 corridor following its launch by President William Samoei Ruto in November 2025. Earthworks, road widening and drainage improvements are progressing across multiple sections.
The project covers 175km from Rironi through Naivasha and Nakuru to Mau Summit, alongside rehabilitation of the 62km Rironi–Mai Mahiu–Naivasha Escarpment Road.
The upgrade is set to ease congestion and improve mobility along one of Kenya’s busiest highways.
Upon completion, the highway will feature modern dual carriageways, grade-separated interchanges, overpasses, underpasses, truck lanes, pedestrian footbridges and intelligent transport systems to enhance road safety, efficiency and seamless traffic flow.
As the backbone of the Northern Corridor, the upgraded highway will strengthen connectivity between the Port of Mombasa, Nairobi, Western Kenya and the wider East African region, lowering transport and logistics costs while supporting trade, investment and economic growth.
