Rironi–Mau Summit Highway to be commissioned in October, says CS Chirchir
Once construction begins, the highway is expected to greatly reduce congestion, improve road safety, and boost trade and travel between Nairobi, Naivasha, and Nakuru — a corridor vital to Kenya’s economy and regional connectivity.
Roads and Transport Cabinet Secretary Davis Chirchir has announced that the multi-billion-shilling Rironi–Mau Summit Highway will be commissioned before the end of October 2025, in a move expected to ease traffic along one of Kenya’s busiest transport corridors.
Speaking on Friday, Chirchir said the project is currently in the development phase, with negotiations ongoing with the proponents.
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He noted that within the next 10 days, agreements with the parties involved are expected to be signed, after which President William Ruto is expected to commission the project.
“We’ll be negotiating with the proponents, and hopefully within the next 10 days we should be able to sign and get the President to commission or to ground break the Rironi–Mau Summit before the end of this month," said Chirchir.
The announcement comes after months of delay. President Ruto, while hosting Nakuru County leaders at State House, Nairobi, on June 11, 2025, had said construction would begin in August 2025, following the completion of design work and technical preparations.
Ruto noted that the design work and other technicalities for the project are almost complete before he commissions it in two months.
"We have agreed with the contractors to speed up the project and complete it by 2027. If not, they should have done a substantial portion of it by that time," he said.
Ruto explained that the Rironi-Mau Summit Road would consist of four lanes from Rironi to Naivasha town, as well as the Maai Mahiu-Naivasha road.
He highlighted that the road will then expand to six lanes from Naivasha town to Nakuru City in order to adequately handle the high volume of traffic on the route.
However, in August, the start of the project was pushed to October 2025. The need to finalise key agreements before groundbreaking could take place was cited as the reason.
Once construction begins, the highway is expected to greatly reduce congestion, improve road safety, and boost trade and travel between Nairobi, Naivasha, and Nakuru — a corridor vital to Kenya’s economy and regional connectivity.
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