Speaking at City Hall on Tuesday, Kidero said that plans are underway to clear blocked drainage system to allow for free flow of water and manage floods.
His pronouncement came after the Meteorological Department warned Kenyans to prepare for El Nino rains towards the end of the year.
Deputy Director Peter Ambeje said that the rains, synonymous with floods, are expected to start from the 1st week of October.
On his part, Director of National Disaster Management Conel Kaguthe assured that contingency and mitigation plans are in place to avert disasters during the heavy rains.
Various estates in Nairobi experienced heavy flooding in May when heavy rains pounded the county. Most residents blamed the county government for unpreparedness and neglect of the county’s drainage systems.