Motorists using the busy Nairobi–Nakuru Highway could soon experience relief from persistent traffic congestion after the government announced plans to open sections of the Rironi–Naivasha road before the festive season.
Transport Cabinet Secretary Davis Chirchir made the announcement after inspecting ongoing construction works along the Rironi–Mau Summit section of the Rironi–Naivasha–Gilgil Road Project. During the inspection, Chirchir confirmed that contractors had laid the first layer of Dense Bituminous Macadam (DBM) at Lari, marking a significant milestone in the project.
The achievement comes less than a year after President William Ruto launched the construction works at Manguo, near Rironi, on November 28, 2025.
“I reaffirmed our commitment to accelerating construction, with sections of the road, particularly Rironi to Naivasha, set to be opened to motorists before the festive season to ease traffic congestion,” Chirchir stated.
The multi-billion-shilling infrastructure project is expected to ease pressure on one of Kenya’s busiest transport corridors, which connects Nairobi to the Rift Valley, Western Kenya and neighbouring countries, including Uganda, Rwanda and the Democratic Republic of Congo. According to the CS, the expanded highway will reduce travel time, improve road safety, ease congestion and strengthen regional connectivity.
However, Chirchir acknowledged that construction had experienced setbacks over the past two months due to challenges in accessing bitumen. He attributed the delays to geopolitical developments and disruptions in global supply chains, which affected the availability of the essential road construction material.
“We recognise the inconvenience motorists and businesses continue to endure and appreciate their patience as we work to deliver this transformative project,” he said.
During the inspection, accompanied by the National Transport and Safety Authority (NTSA) Director General, Chirchir also assessed road safety measures along the corridor. The assessment focused on ensuring that road furniture and signage meet the required standards to protect motorists and reduce accidents.
With more than 1,000 pieces of heavy-duty machinery deployed along the corridor, the CS urged motorists to exercise caution, observe traffic regulations and remain vigilant around active construction zones. The government maintains that accelerating the project will help improve movement along the busy highway, particularly as traffic volumes increase during the upcoming festive season.
