Thiba Dam

Reservoir Dams in Kirinyaga

Thiba Dam: Bolstering Rice Production

Found between Njine Kabia Falls (above) and the more famous same-name Thiba Falls (below) in Rukenya, along Thiba River, Thiba Dam, of a recent development, is not only an invaluable resource for farmers in the area, but has added much to the beauty of this farming enclave. Kwa Waweru Thiba Dam Viewpoint is a great vantage to view the reservoir, surrounded by low hills and farms, and take in this engineering marvel that is tipped to forever transform the livelihoods of the area.

Also known as Rukenya Dam, construction of Thiba Dam began in September of 2016 but faced interruptions due to funding challenges. Work resumed in January 2020 following a financial boost, and the dam was completed and commissioned for operational use on October 15, 2022, by President William Ruto. It represents a pivotal development in Kenya’s agricultural sector, underscoring the importance of sustainable water resource management in achieving viable economic growth.

Its dam, standing 40 meters tall and spanning 1 kilometer in length, holds back a vast reservoir with a storage capacity of 15.6 million cubic meters, including a dead storage of 4 million cubic meters. The primary objective of Thiba Dam is to provide a reliable, year-round water supply to the Mwea Irrigation Scheme, the largest rice-growing scheme in Kenya. By stabilizing water availability, the dam enables farmers to cultivate their fields throughout the year, doubling the output.

Envisioned to cost Kes. 20 billion at inception, Thiba Dam has, gradually, begun transforming and improving the outmoded irrigation facilities at the Mwea Rice Irrigation Scheme, by enhancing its rice crop production and providing a stable supply of water required by the scheme – from the current 80,000 to 160,000 tonnes of paddy annually. What’s more, a resort city which includes a golf course is under planning in company with a new proposed route to climb Mount Kenya.


Kenya has several reservoir dams that play a consequential roles in water supply, hydroelectric power generation, irrigation, flood control, and other water-related activities. The most famous of these are Seven Forks Dams along the Tana River. While reservoir dams are critical infrastructure projects that contribute to Kenya’s economic development, they are also visually stunning go-to destinations.


Known for its agricultural productivity, breathtaking landscapes, and cultural heritage, Kirinyaga is a key contributor to Kenya’s economy. Located at the foot of Mount Kenya, its landscape is characterized by lush green tea and coffee farms, rivers, and rolling hills, and the weather, year-round, is temperate and salubrious.

You Are Here: Thiba Dam

Where to Next?

Explore Destinations Nearby Thiba Dam


Kirinyaga has a true tropical climate with equatorial rainfall pattern. Mean temperature ranges from a low of 8oC in the upper zones to 30oC in the lower zones about Mwea.

Know More About Kirinyaga County…