August Deadline Set for Opening of Major Rift Valley Road Section

Motorists using the busy Northern Corridor are expected to see a shift in traffic flow by August 2026. This follows an announcement by the Cabinet Secretary for Roads and Transport, Davis Chirchir, regarding the progress of the highway section connecting Rironi and Naivasha.

During a site visit on February 12, the Cabinet Secretary indicated that the stretch is nearing a stage where it can be integrated into the national grid for public use. The Rironi to Naivasha portion is a critical segment of the larger planned expansion of the highway that connects Nairobi to Western Kenya and neighboring landlocked countries.

The upgrade of this road has been a point of focus for the Ministry of Transport due to the high volume of heavy commercial vehicles and the frequent congestion experienced at the Limuru and Mai Mahiu escarpments. By transitioning the road into a dual carriageway, the government aims to reduce the transit time between the capital and the Rift Valley region.

According to the Ministry, the August 2026 timeline is based on the current pace of work and the mobilization of resources on the ground. The project involves significant engineering works, including the construction of interchanges and overpasses designed to eliminate the intersections that often cause bottlenecks for long-distance transporters.

The Kenya National Highways Authority (KeNHA) has been overseeing the technical aspects of the project. Engineers on site have focused on ensuring the pavement structure can withstand the high axle loads typical of the A104 international trunk road. This route serves as the primary artery for goods moving from the Port of Mombasa to Uganda, Rwanda, and South Sudan.

Beyond the immediate traffic relief, the completion of this section is expected to improve safety standards along a route historically known for blackspots. The separation of opposing traffic flows through a central median is a core design feature intended to minimize head-on collisions, which have been a recurring issue on the existing single-carriageway sections.

The Cabinet Secretary noted that while the August 2026 opening focuses on the Rironi to Naivasha stretch, it remains part of a broader infrastructure strategy. The government is currently exploring various financing models to ensure that the remaining sections toward Mau-Summit also receive similar upgrades.

In previous briefings, transport officials have highlighted the role of private-public partnerships in delivering such large-scale projects. However, for the current works between Rironi and Naivasha, the emphasis remains on meeting the mid-2026 deadline to provide immediate relief to the thousands of commuters and businesses that rely on this corridor daily.

Construction activity along the escarpment has required careful management of existing traffic. KeNHA has frequently issued advisories for motorists to exercise caution as heavy machinery and personnel continue to operate in proximity to the live road. The Ministry has assured the public that as the August deadline approaches, more sections will be paved and marked to allow for a seamless transition once the official opening occurs.

The announcement comes at a time when the government is under pressure to improve the country's logistics performance. Reducing the time it takes for trucks to move from the coast to the interior is seen as a vital component in lowering the cost of doing business within the East African Community.

As the project moves into its final phases, the focus will turn to the installation of signage, lighting, and safety barriers. These final touches are scheduled to be completed alongside the main civil works to ensure the road meets international safety standards before the first vehicles are allowed onto the new lanes.