In a major step toward ending the long-standing issue of flooding in Mapusa and its nearby areas, the Goa State government has unveiled a ₹46.52 crore river improvement project for the Mapusa River. Spearheaded by the Water Resources Department (WRD), the initiative aims to tackle the root causes of recurring floods while restoring the river's ecological health.
The project covers a 4.5-kilometre stretch of the river—from Guirim to the National Highway bridge at Tar junction. Core components include desilting, widening, and strengthening the riverbed to boost water flow and ensure effective monsoon runoff discharge. Clearing the river of silt and debris is expected to greatly reduce the risk of flooding during heavy rainfall.
To guard against tidal surges and floodwaters, flood embankment bunds made of earth and moorum will be constructed along both banks. Advanced sluice and flap gates will be installed every 200 metres, automatically shutting during high tides to prevent water from backing into residential areas.
A composite flood protection wall, combining concrete and laterite boulders, will be built to reinforce the most vulnerable riverbank sections. In addition, a dedicated sluice gate will be constructed to divert floodwaters from the Guirim catchment area, adding another layer of defense.
To manage overflow, the project includes a powerful pumping system equipped with pumps that can handle up to 3,000 cubic metres of water per hour. This will be supported by a 320 KVA diesel generator, control panels, pipelines, and a pump house.
Aldona MLA Carlos Ferreira called the project a long-overdue solution, noting that years of inaction had turned the river into an environmental and public health risk. The WRD expects the project—executed by M/s Bagkiya Construction Pvt Ltd—to be completed within 300 days, offering long-term relief from flooding and restoring the river’s vitality.