Construction works are progressing along the Rironi–Nakuru–Mau Summit Highway, as the Government accelerates one of Kenya’s most important road infrastructure projects.

Officially launched by H.E. President William Ruto in November 2025, the project seeks to upgrade the busy A8 corridor into a modern multi-lane dual carriageway. Contractors are currently undertaking earthworks, road widening, drainage improvements and related works across several sections.

The project covers 175 kilometres from Rironi through Naivasha and Nakuru to Mau Summit. It also includes rehabilitation of the 62-kilometre Rironi–Mai Mahiu–Naivasha Escarpment Road.

Upon completion, the highway will feature interchanges, overpasses, underpasses, truck lanes, pedestrian footbridges and intelligent transport systems. These upgrades are expected to ease traffic, improve safety and reduce transport and logistics costs.

The highway forms a critical part of the Northern Corridor, linking the Port of Mombasa and Nairobi to Western Kenya and the wider East African region. Its upgrade is expected to boost trade, strengthen regional connectivity and support economic growth.