KeNHA: Mayoni-Bungoma Road Closure 2026 for Box Culvert Work

• KeNHA announced a three-month closure of a section of the Mayoni-Bungoma Road (B139) for box culvert construction.
• The closure will be in effect from October 16, 2026, to January 15, 2027, at kilometre 2.1.
• Motorists will need to use four designated diversion routes and should expect potential delays.
• The construction aims to improve drainage infrastructure along the road.
• Road users are advised to follow traffic management plans and exercise caution near the construction site.

The temporary closure of this vital section of the B139 road is expected to introduce significant changes for motorists traversing the Mayoni-Bungoma corridor.

The Kenya National Highways Authority (KeNHA) has issued a public notice detailing a significant three-month closure affecting a section of the Mayoni-Bungoma Road. This planned disruption, announced on October 9, is scheduled to commence on October 16, 2026, and conclude on January 15, 2027. The primary objective of this closure is to facilitate essential construction work, specifically the installation of a new box culvert. This infrastructure upgrade is aimed at enhancing the drainage system along this critical transport artery.

The affected segment is precisely located at kilometre 2.1 of the B139 road, a key route connecting Mayoni and Bungoma. Motorists who regularly utilize this corridor for travel between these two points will need to make alternative arrangements for their journeys during the specified period. KeNHA has confirmed that normal traffic operations will be fully restored once the construction of the Mayoni-Bungoma box culvert is successfully completed, with the target reopening date set for January 15, 2027.

In anticipation of the KeNHA Mayoni-Bungoma Road closure 2026, the Kenya National Highways Authority has outlined a comprehensive traffic management plan to guide road users. The authority has designated four specific diversion routes that motorists are advised to follow to navigate around the construction site. This proactive measure aims to mitigate the impact of the closure on daily commutes and commercial transport.

Road users are strongly urged to adhere to the established traffic management protocols and to cooperate fully with the law enforcement officers and traffic marshals who will be deployed at the affected section. These personnel will be responsible for directing traffic and ensuring smooth flow through the alternative paths. Furthermore, KeNHA has advised drivers to exercise heightened caution when approaching the construction zone and to strictly observe all posted traffic instructions. This vigilance is crucial for minimizing potential congestion and reducing the risk of accidents during the period of the KeNHA road works October 2026 January 2027.

The temporary closure of this vital section of the B139 road is expected to introduce significant changes for motorists traversing the Mayoni-Bungoma corridor. Travelers should anticipate potential delays, particularly during peak hours, as traffic is rerouted onto the designated diversions. Those unfamiliar with the local road network may require additional time to locate and navigate these alternative routes effectively.

While the construction of the box culvert is intended to improve long-term drainage infrastructure, KeNHA's public notice did not provide specific details regarding the expected traffic volumes on the diversion routes or the precise extent of delays motorists should prepare for. Despite this, the Kenya road closure notice underscores the necessity for all road users to plan their journeys meticulously, allowing for extra travel time and remaining adaptable to changing traffic conditions throughout the three-month period. The road is slated to reopen on January 15, 2027, contingent upon the successful completion of the works.

Lawyers advising clients in logistics, transportation, or businesses with supply chain operations reliant on the Mayoni-Bungoma Road should alert them to this planned three-month closure. This necessitates a review of operational plans, potential contractual obligations related to delivery schedules, and the applicability of force majeure clauses to mitigate risks arising from the anticipated delays and diversions.

Source: Information sourced from the original public notice.