Controlled water release at a hydroelectric dam as spillways discharge excess water following heavy rainfall in upstream catchment areas/AI ILLUSTRATED

Residents living along the Lower Tana River have been put on high alert after the government warned that the Seven Forks dams could overflow following heavy rains in upstream catchment areas.

In a press release issued on April 29, 2026, the Ministry of Interior and National Administration said persistent rainfall in the upper Tana region, including areas around Mt Kenya, has significantly increased inflows into the Seven Forks hydroelectric dams.

Water levels at key reservoirs, including Masinga Dam, have risen sharply, raising fears of potential downstream flooding if the situation persists.

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“To manage the situation, controlled water releases are already taking place at Kamburu, Gitaru and Kindaruma dams,” the ministry said.

“However, if rainfall continues or if Kiambere Dam reaches its limit, more water may flow downstream, raising the risk of flooding in affected areas.”

The Seven Forks scheme, comprising Masinga, Kamburu, Gitaru, Kindaruma and Kiambere dams, plays a critical role in power generation and water regulation along the Tana River.

The ministry noted that increased inflows during the rainy season often require controlled spillages to safeguard dam infrastructure, but said this can intensify flooding risks for communities downstream.

According to the ministry, water levels along the Tana River are expected to begin rising steadily from April 29, with a further increase projected by May 1.

Some low-lying areas in the lower basin, particularly within the Tana Delta, could start experiencing early flooding by the end of the week.

“The highest risk period is expected between May 2 and May 3, when water levels could peak and cause widespread flooding in areas such as Garissa, Hola and Garsen,” the statement said.

“Floodwaters may spread across nearby floodplains and delta regions.”

The warning comes amid ongoing heavy rains across several parts of the country that have already triggered flash floods and displacement in some regions.

Authorities are urging residents in vulnerable zones to take precautionary measures to minimise loss of life and property.

Residents have been advised to move to higher ground where possible, relocate livestock, secure essential belongings and avoid crossing rivers or walking through flowing water.

The ministry emphasised the importance of heeding instructions from local authorities and emergency response teams.

“Taking early action can help save lives and reduce damage,” it said.

Disaster response teams are monitoring the situation as communities brace for possible flooding over the weekend. The government said it will continue to provide updates as water levels evolve in the coming days.