There are nine major rivers in Goa flowing from East (Western Ghat) to West (Arabian Sea) except Sal River. Terekhol, Chapora, Baga, Mandovi, Zuari, Sal, Saleri, Talpona, Galgibag are the main nine rivers of Goa. Among these rivers Mandovi and Zuari drain 2553 Sq. Km, about 70% of the total geographical area of Goa. Out of nine rivers, six originate and flow exclusively within the state boundaries and do not have any interstate implications. However, river Terekhol and Chapora originate in Maharashtra state while Mandovi originates in Karnataka. These rivers form an integral part of Goan life because of their portability, irrigation facilities, agriculture and coastal resources, transportation of mining ores, etc.

Mandovi River Basin
View of Mandovi Estuary

Goa’s rivers are unique and are both tidal as well as Rainfed. In Goa, during monsoon, water within the watershed areas is drained out through the major rivers to the sea. The rivers are influenced by the tidal influx upto the distance of 40Km inland towards upstream. Salinity factor in the river varies sharply during monsoon and non-monsoon seasons and so does the physico-chemical quality of water in wells along the riverbanks.

Sal River at Betul
River Basin in Goa Basin Area in Sq. Kms.

Terekhol

71

Chapora

255

Baga

50

Mandovi

1580

Zuari

973

Sal

301

Saleri

149

Talpona

233

Galgibag

90
Total 3702 Sq. Kms.
       
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