Johnson Sakaja has ordered the preparation of a 48-hour action plan to address flooding, drainage failures and infrastructure damage across Nairobi.
The directive followed an urgent meeting held at City Hall that brought together officials from national government agencies to discuss the worsening flooding situation in the capital.
The flooding has been linked to ongoing heavy rains that began on March 6 and have affected several parts of the city.
Sakaja instructed officials to prepare a comprehensive report mapping drainage hotspots, identifying damaged roads and infrastructure, and outlining the work required, responsible agencies and the estimated cost of repairs.
He said the assessment should be validated with support from Kenya Urban Roads Authority, Kenya National Highways Authority and Kenya Rural Roads Authority.
The governor also proposed incorporating digital mapping tools from Google and Esri to improve planning and response.
During the meeting, officials agreed to prioritise the repair and recarpeting of roads damaged by floods and also discussed the installation of new street lighting across informal settlements, highways and residential estates.
The implementation committee is expected to reconvene on Thursday to review the report and approve immediate interventions.
The developments come after the Ministry of Interior and National Administration flagged 37 neighbourhoods in the city as flood-prone areas following a mapping exercise conducted under the Nairobi Rivers Regeneration Programme.
Authorities said the identified areas lie along sections of the Nairobi River and its tributaries, which have been vulnerable to flooding during heavy rainfall.
Meanwhile, William Ruto has assured Kenyans of a swift government response to emergencies following the heavy downpour that left several parts of the capital flooded.
In a statement, the President said a multi-agency team comprising emergency services, security agencies and humanitarian teams is coordinating response efforts in Nairobi and other affected regions.
The national death toll from the ongoing rains had risen to 66 by Sunday.
Researchers at Google have also developed a flash flood forecasting tool aimed at predicting flood risks in urban areas up to 24 hours in advance.
According to the company, the tool available on Flood Hub uses satellite data and Synthetic Aperture Radar imagery to calculate flooded areas and generate rapid flood maps using artificial intelligence.
However, Google cautioned that the accuracy of the system may sometimes be affected by unclear satellite imagery, noting that improvements are ongoing.