KeNHA Warns Motorists After Flooding Closes Sections of Mai Mahiu-Suswa-Narok B7 Road

The Kenya National Highways Authority has notified motorists that sections of the Mai Mahiu-Suswa-Narok (B7) road experienced flooding and silt deposition on the evening of 16 April 2026. The affected areas lie at Kedong Ranch near Suswa.

KeNHA said it is working to reopen the impacted stretches. The advisory, signed by Director General Eng. Luka Kimeli, warned drivers against attempting to drive through flooded zones. It directed them to follow instructions from police officers and traffic marshals to avoid being swept away or stuck in silt.

The authority highlighted particular risks between Naivasha ICD at kilometre 14 and Suswa Ranch at kilometre 39. As heavy rainfall continued in the area, KeNHA urged extreme caution along various sections of the road.

Motorists who had not yet started their journeys received advice to use the Narok-Njoro-Nakuru (B18) road instead. This alternative route helps bypass the disrupted parts of the B7 corridor.

The B7 serves as a vital link for travel and freight between the Nairobi area, the southern Rift Valley, and Narok town. It carries significant traffic, including vehicles heading toward the Maasai Mara region. Flooding and silt buildup have disrupted movement on this stretch before during periods of intense rain.

KeNHA assured road users that teams were working around the clock to restore normal traffic flow and ensure safety. No specific timeline for full reopening appeared in the advisory.

The notice came as Kenya deals with ongoing rains that have affected several roads across different regions. Similar advisories often appear when low-lying sections or areas with inadequate drainage face sudden water accumulation.

Eng. Luka Kimeli, who took over as Director General earlier this year, oversaw the issuance of the statement. Contact details for complaints and customer care were included at the bottom of the official notice.

Motorists already on the road need to proceed with care and remain alert for changing conditions. Those planning trips along the corridor should monitor updates from KeNHA before departing.

This latest incident at Kedong Ranch echoes past challenges on the B7, where heavy downpours have repeatedly caused temporary closures or difficult driving conditions. The authority has in previous years carried out drainage works and spot repairs in vulnerable spots, yet the problem resurfaces with strong rains.

KeNHA manages Kenya's national trunk roads and regularly issues real-time alerts through its channels. The current advisory stresses the need for drivers to prioritise safety over speed in wet conditions.

No additional details emerged on the depth of flooding or volume of silt deposited. The focus remained on immediate safety measures and the recommended detour via the B18.

Road users can reach KeNHA through its toll-free line, customer care number, or email for further enquiries. The authority also maintains an active presence on social media for ongoing updates.