Name and Location
Thwake multipurpose water development programme, Kenya.

Client
Ministry of Water and Irrigation.

Project Description
The project entails the construction of the Thwake dam at the confluence of the Thwake and Athi rivers.

The project is expected to supply water to more than one-million residents of the Machakos, Makueni and Kitui counties, as well as generate 20 MW of electricity to power Konza Tech City, in Makueni County.

The construction of the dam is a Vision 2030 flagship project, jointly funded by the national government of Kenya and the African Development Bank.

The project will be built in four stages.

Phase 1 involves the construction of a 77-m-high multipurpose rockfill dam and associated preliminary works needed to implement the other three phases. This includes one intake tower with three penstocks for hydropower, one draught outlet for water supply, one draught outlet for irrigation, one service spillway and one emergency spillway.

Phase 2 entails building water works to treat and distribute up to 3.46-million cubic metres of water to about 674 700 rural inhabitants of Kitui and Makueni counties, and up to 1.17-million cubic metres to 640 000 inhabitants of Konza City.

Phase 3 will include hydropower and substation development for up to 20 MW of installed capacity.

Phase 4 entails irrigation works for up to 40 075 ha in Kitui and Makueni counties.

Value
Not stated.

Duration
Not stated.

Latest Developments
None stated.

Key Contracts and Suppliers
None stated.

On Budget and on Time?
Not stated.

Contact Details for Project Information
Ministry of Water and Irrigation, tel +254 020 2716103, fax +254 020 2727622 or email ps@water.go.ke.