Nairobi gets 14-day deadline to finish flood works as evacuation plans take shape

Nairobi has 14 days to complete critical drainage and road works before the city enters the period when heavy rains are expected to put its flood defences to the test.

Governor Johnson Sakaja has ordered county engineers, Kenya Urban Roads Authority (KURA) teams and contractors to speed up work in the city's known flood hotspots.

The deadline comes as the national government prepares for a possible second phase of the response — moving residents from areas considered unsafe if flooding becomes severe.

Deputy President Kithure Kindiki said on Thursday that authorities had already identified possible temporary holding grounds for residents who may need to leave their homes.

The two developments show how Nairobi is preparing on two fronts: trying to keep floodwater under control while also preparing for the possibility that some areas may become too dangerous to remain in.

Sakaja gives teams two weeks

Sakaja issued the 14-day deadline during a meeting with KURA Director-General Silas Kinoti, county engineers and contractors at Barabara Plaza in Nairobi on Thursday.

He directed teams to concentrate on areas where flooding has repeatedly disrupted roads, homes and businesses.

“We have directed our teams to accelerate the ongoing works, particularly in known flood hotspots, to improve drainage and reduce the risk of flooding ahead of the expected rains,” Sakaja said.

The deadline effectively takes the immediate completion target to around early October.

That leaves little room for delays, particularly for works involving drainage channels, road crossings and waterways that require heavy machinery.

Nairobi County says it has identified 227 flood hotspots across the city's 17 sub-counties. The mapping is being used to decide where equipment and emergency resources should be deployed first.

Sh2.4 billion programme under pressure to deliver

The deadline is part of a wider Sh2.4 billion flood-mitigation programme being implemented by the county and partner agencies.

About Sh2 billion of that amount is earmarked for drainage and flood-control works on 19 flood-prone roads.

The programme includes opening blocked drains, removing silt, widening and deepening drainage channels and improving the routes through which stormwater leaves built-up areas.

Additional earth-moving equipment has already been deployed to several hotspots.

Recent works have included sections of Mombasa Road, Umoja, Kariobangi South, Westlands, Parklands, Ngara, Pangani and Ziwani, among other areas.

The Nairobi Rivers Commission has also been clearing waterways and drainage systems in different parts of the capital.

The challenge is particularly acute around Nairobi's main rivers.

Sakaja has previously warned that construction and other obstructions along natural waterways can worsen flooding by restricting the paths water would normally take.

Government prepares for possible evacuations

While the county is racing to finish the physical works, the national government is preparing for a situation where drainage improvements may not be enough.

Kindiki chaired a multi-agency preparedness meeting in Karen on Thursday, bringing together agencies responsible for roads, energy, drainage and disaster response.

He said weather projections point to significant rainfall from around the second to third week of October.

“We are prepared. There is still work ongoing,” Kindiki said, while urging Nairobi residents not to panic.

The Deputy President said authorities had mapped areas where residents could be moved temporarily if flooding creates an immediate danger.

The government is also preparing food, non-food items and medical supplies for people who may have to leave their homes.

Kindiki said any relocation would be carried out with the safety of residents in mind.

The warning does not mean mass evacuation is already under way.

Rather, officials are preparing temporary relocation as a contingency if particular neighbourhoods become unsafe.

27 shelters identified

Nairobi County says it has identified 27 drop-off points and shelters that could be used during an evacuation.

An emergency operations centre has also been established, with residents able to report flood-related incidents through the county's 1508 hotline.

Five coordination committees have been established to oversee key areas of the response.

They cover infrastructure and drainage, emergency response and evacuation, shelter and relief, security and traffic, and public communication.

The multi-agency effort brings together Nairobi County, KURA, Kenya National Highways Authority, Kenya Rural Roads Authority, Kenya Red Cross, the National Disaster Management Authority and the Nairobi Rivers Commission.

What the weather outlook says

The preparations are based on forecasts for the October–December short-rains season, rather than a guarantee that every part of Nairobi will experience extreme rainfall.

The Kenya Meteorological Department's broader climate outlook has pointed to an increased likelihood of El Niño conditions towards the end of 2026, with the potential for enhanced rainfall during the October–December season, particularly in eastern and central Kenya. It has also warned that such rainfall could increase flooding risks in vulnerable areas.

KMD continues to issue shorter-term forecasts as conditions change. Its current forecasting system includes daily, seven-day and seasonal updates, allowing authorities to refine preparedness as the rainy season approaches.

That distinction matters.

The 14-day deadline is therefore not a claim that Nairobi will definitely flood after two weeks. It is a push to have the most important physical interventions in place before the period when authorities expect the risk to rise.

The real test comes when the rain falls

For years, Nairobi residents have watched roads turn into waterways during intense storms, with blocked drains, overflowing rivers and inadequate stormwater channels worsening the disruption.

This time, authorities say they want to act before the water arrives.

But the scale of the challenge is significant.

With 227 identified hotspots, 19 roads targeted for major drainage works and thousands of residents potentially living near vulnerable waterways, completing construction is only part of the task.

The other test will be whether the new and cleared drainage routes can actually move large volumes of water quickly enough.

For residents, the immediate expectation is simple: that the machines now working across the city will finish their job before the skies put the system to the test.

About the Author

Maureen Onyango is a journalist passionate about storytelling, life coaching and spiritual lessons. She studied at the Kenya Institute of Management and enjoys telling stories that inform, inspire and empower communities.