Mwea Irrigation Scheme

The Mwea Irrigation Scheme is the largest and most productive rice irrigation project in Kenya. It is located in Kirinyaga County, where farmers rely on a steady water supply from the Thiba and Nyamindi rivers. Because of this reliable source, the scheme supports year-round farming and plays a central role in Kenya’s rice production.

Mwea is best known for producing Mwea Pishori rice, which is highly valued for its aroma and quality. Farmers also grow maize, tomatoes, onions, vegetables, and legumes. These additional crops help diversify income and improve food availability in the region. The consistent irrigation system allows farmers to plan their farming seasons with confidence.

The scheme operates through a well-developed network of canals, headworks, water intakes, and drainage structures. These systems ensure efficient water delivery and prevent losses caused by flooding or shortages. As a result, crop yields remain steady, even during dry seasons. The recent construction of the Thiba Dam has also boosted water reliability, which further strengthens rice production.

Farmers working in the Mwea Irrigation Scheme receive continuous technical support. They get training on water management, soil health, crop rotation, pest management, and modern rice production techniques. This training helps improve quality, increase yields, and promote sustainable farming practices. In addition, the scheme encourages the use of certified seeds and improved technologies, which contribute to higher productivity.

Over the years, the Mwea Irrigation Scheme has become a major contributor to Kenya’s food security. It also supports local markets, creates employment, and drives economic growth in Kirinyaga County. Through reliable irrigation and strong extension services, the scheme continues to grow as a model for irrigated agriculture in the region.