The Kenya National Highways Authority (KeNHA) has cautioned motorists against using flooded sections of the Mai Mahiu–Suswa–Narok road following heavy rains that disrupted traffic near Suswa.
In a Thursday advisory, the agency said efforts to restore access are ongoing, urging drivers to postpone travel or seek alternative routes and adhere to safety guidelines to prevent accidents or vehicles being swept away.
In a traffic advisory issued on March 19, 2026, the Kenya National Highways Authority said the incident occurred at Kedong Ranch, where heavy rainfall led to water accumulation and debris covering parts of the road.
“The Mai Mahiu-Suswa-Narok (B7) Road experienced flooding and silt deposition at Kedong Ranch near Suswa,” the authority said.
The agency confirmed that teams have been deployed to the affected area and are working to restore normal traffic flow. However, continued rainfall is hampering efforts and posing ongoing risks to motorists using the route.
“The Authority is currently working to reopen the affected section of the road,” the statement added.
Drivers have been strongly advised to avoid flooded sections entirely, amid concerns about vehicles being swept away or trapped in silt. Authorities said such conditions can change rapidly and may be difficult to assess from a distance.
“Motorists are advised to avoid driving through flooded areas and to strictly follow instructions from the police and traffic marshals to prevent being swept away or getting stuck in silt deposits,” KeNHA warned.
The advisory further highlighted that multiple sections of the road remain hazardous, particularly between Naivasha Inland Container Depot at kilometre 14 and Suswa Ranch at kilometre 39. These areas continue to receive heavy rainfall, increasing the likelihood of further flooding and reduced visibility.
As a precaution, motorists who have not yet begun their journeys have been urged to postpone travel plans until conditions improve.
“Motorists who have not yet commenced their journeys are advised to delay travel until floodwaters subside,” the authority stated.
For those who must travel despite the disruption, alternative routes have been outlined to minimise risk and congestion.
Suggested options include the Ngong–Suswa route, the Nairobi–Naivasha–Nakuru–Mau Narok–Narok corridor, and the Nairobi–Naivasha–Longonot–Suswa road.
KeNHA officials said these diversions may provide safer passage while restoration works continue on the affected section of the B7 highway.
The disruption comes as several parts of the country continue to experience sustained rainfall, raising concerns about road safety and infrastructure resilience.
Flooding has increasingly affected major transport corridors, particularly in areas prone to poor drainage or loose soil, such as sections near Suswa.
KeNHA reiterated its commitment to ensuring the safety of road users and restoring normal operations as quickly as possible. The authority said it is working continuously to address the situation.
“KeNHA assures all road users that it is working around the clock to restore normal traffic flow and ensure the safety of motorists,” the statement said.
Motorists have also been urged to remain alert and comply with directions issued by traffic officers and emergency personnel on site.
Authorities stress that cooperation from road users will be critical in preventing accidents and ensuring smooth management of traffic during the disruption.
The advisory reinforces the risks associated with driving during periods of heavy rainfall, with officials calling for increased caution and preparedness. Drivers are encouraged to stay informed on road conditions and adjust travel plans accordingly.
KeNHA, led by Director General Eng. Luka Kimeli, has also provided contact channels for motorists seeking further information or assistance, including a toll-free line and customer care services.
As efforts to reopen the road continue, authorities say safety remains the top priority, urging motorists to heed all warnings and avoid unnecessary travel until conditions stabilise.
