As torrential rains and flash floods sweep through Nairobi this week, claiming more than two dozen lives and leaving entire neighbourhoods submerged, residents and historians alike are drawing sombre parallels with one of the city’s most dramatic natural disasters: the great floods of 1961 during the height of British colonial rule.
In late March 1961, Nairobi experienced an unprecedented three‑day deluge that transformed the young capital into an island of water and mud.
For the first time in its history, the city was cut off from the coastal lifeline of Mombasa — both the main road and the railway linking Kenya’s heartland to the Indian Ocean were swept away by raging floodwaters.
In that era before modern drainage systems and engineered stormwater channels, the Athi River, Ngong River and many seasonal streams overflowed with devastating force.
“I’ve spoken to survivors who still remember the smell of wet earth and petrol mixed with despair,” says historian and journalist Levin Odhiambo Opiyo, who has spent years piecing together eyewitness accounts from Kenya’s pre‑independence past.
“The city that was then home to barely 200,000 people stood still. Shops closed, homes were flooded, and people huddled on rooftops waiting for help.”
The crisis in 1961 quickly overwhelmed local resources. Then‑Governor Sir Patrick Renison appealed to the British government for assistance.
In response, London dispatched 150 military engineers tasked with reopening vital transport links. Roads were rebuilt, bridges reinforced and the broken railway line to Mombasa restored in a matter of weeks.
The scale of the operation underscored the strategic importance of Kenya’s infrastructure to the colonial administration, even as the country was on a path toward independence.
Reinforcements did not stop there. An additional 350 soldiers, supported by helicopters from the Royal Air Force and Royal Navy, were sent to Kenya to distribute food and supplies to stranded communities.
Airlifts delivered rice, maize and medical aid to regions cut off by floodwaters — a move that many older Nairobians recall as the moment order began to return amidst chaos.
More than six decades later, Nairobi finds itself confronting the same elemental fury, but under very different circumstances.
Heavy rains over recent days have turned major thoroughfares — including Uhuru Highway and Mombasa Road — into channels of rushing water, while informal settlements such as Mukuru, Kibra and Mathare face severe inundation.
Emergency services, including the Kenya Defence Forces and the Red Cross, are conducting search and rescue operations as families are evacuated from low‑lying estates.
President William Ruto has pledged relief support, echoing the swift government response of 1961, albeit with modern emergency management systems in play.
Urban planners have pointed to blocked drainage, unplanned construction and ageing infrastructure as key contributors to the scale of this week’s flooding.