Masinga Dam

Reservoir Dams in Machakos

Masinga Dam: Largest Dam in Kenya

Commissioned in 1981 and spreading over 120 km2, Masinga Dam is the largest man-made lake in Kenya. It is the equivalent of Lake Naivasha. Construction of Masinga Dam began in the late 1970s and was completed in 1981. The reservoir, with a mass capacity of 1.56 billion cubic meters (1.26 million acre-feet) of water, extended upstream along the Tana River, inundating the surrounding areas and creating the beautiful body of water. The holding dam is a concrete gravity dam with a height of approximately 60 meters and a length of about 1,056 meters.

Masinga Power Station has two vertical Kaplan turbines that generate 40 MW. Power from the station is first transmitted to Kamburu Dam then onwards and upwards to Nairobi City. For tourism, Masinga Dam is the most developed of the five Seven Forks Dams, with water-sports, boating tours to the tiny Gichuki Island – in the middle of the dam – being part of the many things to enjoy here. There is also the homely Masinga Dam Resort located adjacent to the Masinga Reservoir. It is found 72 km south of Embu town via B7 Embu-Kivaa-Kitui Road. From Nairobi, it is 150 km via A1 Nairobi-Nyeri Road onto A3 Thika-Garissa Road to Kangonde and B7 Kitui-Kivaa-Embu Road. From Masinga it is only 10 km to Kamburu Dam. 


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.


Part of the larger Ukambani alongside Kitui and Makueni, Machakos County is a nexus between Maasailand, the coast region, the central highlands, and Nairobi. The northern area of Machakos, being a dormitory zone for the capital of Nairobi and a peri-urban buffer for Kiambu, is developed with useful amenities. Southerly heading the ecology is continually semi-arid and the countryside more desolate.

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What’s The Air Like in Machakos?

Climate in much of the area is pleasant and similar to that of Nairobi, with temperature varying between 18oC and 29oC. And, rain is heaviest in March, April and September.

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