KeNHA Announces Blockage Along Mai Mahiu-Suswa-Narok Highway, Gives 3 Alternative Routes

Motorists travelling along the Mai Mahiu-Suswa-Narok highway have been advised to seek alternative routes following a major disruption caused by flooding and silt deposition.

In a traffic advisory dated March 19, 2026, the Kenya National Highways Authority (KeNHA) announced that the affected section near Kedong Ranch, close to Suswa, had become impassable due to heavy rains.

The Authority noted that floodwaters and accumulated silt had significantly impacted traffic flow along the highway.

“KeNHA wishes to notify motorists that this evening, the Mai Mahiu-Suswa-Narok (B7) Road experienced flooding and silt deposition at Kedong Ranch near Suswa,” the Authority announced.

KeNHA stated that response teams had already been dispatched and were on the ground, clearing debris and restoring normal movement along the road.

Following the incidents, motorists were cautioned against attempting to drive through flooded sections, with KeNHA warning that doing so could result in vehicles being swept away.

“The Authority is currently working to reopen the affected section of the road. Motorists are advised to avoid driving through flooded areas,” KeNHA warned.

Alternative Routes 

For those planning to travel, the Authority urged drivers to use either of the following:

• Ngong – Suswa
• Nairobi – Naivasha – Nakuru – Mau Narok – Narok
• Nairobi – Naivasha – Longonot – Suswa

Drivers were urged to follow directions from police officers and traffic marshals deployed in the area to manage the situation and enhance safety.

The agency further noted that continued rainfall in the region had worsened road conditions, particularly between Naivasha ICD and Suswa Ranch.

As a precaution, travellers who have not yet begun their journeys are encouraged to delay their trips until the situation improves.

“Motorists who have not yet commenced their journeys are advised to delay travel until floodwaters subside. Where travel is unavoidable, motorists may consider using the alternative routes,” KeNHA directed.