Mexico's national water authority Conagua will spend 130mn pesos (US$10.9mn) on the recovery of the San Buenaventura river in Tlalpan, Mexico City.
Work is at the executive project stage and will include installing sewerage systems and channeling wastewater to prevent it from entering the river, said Conagua director José Luis Luege.
The project will be led by Conagua and financing is currently being sought.
The cleanup project is part of the national clean river campaign. Other rivers included in the program include the Ameca river in Jalisco state and the Texcoco river basin in the México valley.
A recent preliminary cleanup effort along 17km of the San Buenaventura river drew around 3,000 participants.