Rironi To Gilgil Dual Carriage To Be Complete in 6 Months

In November 2024, President Ruto launched construction of the long awaited Rironi – Mau Summit dual carriageway and pomised that it would be complete within 6 months.

President William Ruto launched the Rironi–Mau Summit dual carriageway project on November 28, 2025 at Kamandura, Kiambu County. The full corridor covers ~233 km (Rironi to Mau Summit + Naivasha spur), built under a public-private partnership with Chinese-led consortia (CRBC & Shandong Hi-Speed) and financed 75% debt / 25% equity, with NSSF as a key equity partner under a 28-year toll concession. He specifically pledged that the Rironi/Kamandura-to-Gilgil stretch would be done within 6 months of launch.
Cabinet Secretary Davis Chirchir on Saturday 10th January, 2026 inspected ongoing construction works on the Rironi–Mau Summit Highway, expressing satisfaction with the pace and quality of work on one of Kenya’s most important regional transport corridors
In February 2024, The Kenya National Highway Authority (KeNHA) announced road closures along the Nairobi- Rironi Road from February 20 to April 4 to pave the way for construction works taking place under the expansive Rironi-Mau Summit super highway.
In March 2026, the Ministry of Transport revealed that the contractors of the Rironi-Mau Summit and James Gichuru-Rironi highway projects have already opened several sections of the corridor for initial works.

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Last updated: May 14, 2026 7:30 am