The Thwake Dam or Thwake Multi-purpose Water Development Programme is a dam complex being built on the Athi River in Kenya.^[1][2] The dam is meant to be a multipurpose dam that provides drinking water, agricultural irrigation water, hydropower, and other water supply infrastructure.^[1] Water storage is 688 million cubic metres, and is meant for rural homes, Konza and other local jurisdictions.^[1][2] The dam cost KSh. 37 billion and is being built by the China Gezhouba Group Company.^[3] The Funding was provided by the African Development Fund.^[4]

The need for potable water from the dam led to a number of conservation projects upstream, trying to create better clean water, such as in Ondiri Wetland.^[3] Moreover, many industries had been discharging directly into the river.^[3] In July 2021, the dam was criticized by auditor Nancy Gathungu for the lack of clean and safe water to be retained due to pollution locations like Athi River.^[1][5]