EWASO Ng'iro South Development Authority will construct three dams and water reservoirs worth Sh550 million in Suswa and Narok.
Managing director Charles Sunkuli said the dams will curb excessive damages caused by adverse weather conditions especially during the rainy seasons.
Speaking to the press at the weekend in his office, Sunkuli said the regions have been declared an environmental disaster which needs to be addressed.
"The floods have destroyed property and claimed lives. It occurs due to land degradation on the watersheds, flood basins and excess surface run-off occasioned by change in land use," said Sunkuli.
He said the frequent floods in Suswa cuts communication between Nairobi and South Western Kenya and the dams will reduce the damage by 45 percent.
The MD said the water reservoirs will be used for livestock, domestic use and irrigation during dry seasons and will boost the local economy.
Sunkuli said his authority, whose function is the management for the improvement of the livelihood and use of resources, also intends to plant 2 million trees near Longonot area to assist to control floods in Suswa.
"The floods can be control through catchment conservation and rehabilitation through afforestation to achieve 10% forest cover in the immediate catchment," he said.
He said the proposed interventions are an integral part of the development process and aimed at achieving the Millennium Development Goals and is formulated in line with vision 2030.
"The vision 2030 outlines a clean, secure and sustainable environment. The economic risks associated with floods are huge estimated to billions of shillings," he said.
On Mau catchment, they are rolling out a program of scientific modeling and management of rivers which is first of its kind.