The Kenya National Highways Authority has issued a traffic advisory following renewed flooding and silt deposition on the Mai Mahiu–Suswa–Narok (B7) Road, urging motorists to exercise extreme caution amid ongoing heavy rainfall.

In the advisory dated April 16, 2026, KeNHA notified road users that sections of the highway at Kedong Ranch near Suswa experienced significant flooding and heavy silt buildup, disrupting traffic flow along the key route linking Nairobi to Narok and the Maasai Mara region.

“The Kenya National Highways Authority (KeNHA) wishes to notify motorists that this evening the Mai Mahiu – Suswa – Narok (B7) Road experienced flooding and silt deposition on several sections at Kedong Ranch near Suswa,” the statement read.

Affected sections and response

KeNHA said its teams have been deployed to the affected areas and are working to clear the silt and restore normal traffic movement. The authority, however, cautioned that the situation remains risky due to continued heavy rainfall in the area.

Motorists have been advised to avoid driving through flooded sections and to follow instructions from police officers and traffic marshals stationed along the road.

KeNHA warned that vehicles risk being swept away by fast-moving water or getting stuck in silt deposits.

“As the area continues to receive heavy rainfall, motorists are urged to exercise extreme caution when driving along various sections of the road, particularly between Naivasha ICD (Km 14) and Suswa Ranch (Km 39),” KeNHA emphasised.

Alternative routes and travel advisory

The authority advised motorists who have not yet begun their journeys to delay travel or consider using the Narok–Njoro–Nakuru (B18) Road as an alternative route to avoid the affected sections.

The Mai Mahiu–Suswa–Narok road is a key transport corridor serving travellers heading to Narok and the Maasai Mara, as well as facilitating movement of goods between Nairobi and parts of the Rift Valley.

Recurring flooding concerns

The latest disruption follows similar incidents reported in March 2026, when flooding and silt deposition at Kedong Ranch led to a temporary closure of the road. The highway was later reopened after clearance works.

KeNHA said it is working to restore normal traffic flow and ensure safety for all road users.

“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 concluded.