Mhadei River Chokes: Deforestation Fuels Siltation Crisis

Siltation is rapidly accelerating in the Mhadei river and its tributaries within Sattari, particularly during the monsoon season. This environmental concern stems from multiple factors including increased deforestation, loss of vegetation along riverbanks, and unregulated laterite quarrying. Upstream alterations to water flow are also contributing significantly to the sediment buildup.

Forest clearing in upstream areas has directly led to increased siltation, altering the river's natural hydraulic profiles. Experts note that changes at Kankumbi, associated with the Kalasa nalla project, where Karnataka has diverted waters, have impacted river currents and caused sedimentation in specific zones. Furthermore, ongoing sand extraction activities have destabilized riverbeds and intensified soil loss.

The accumulation of silt reduces the river's depth and its capacity to carry water. This directly contributes to a heightened risk of flooding, especially when intense rainfall events occur. Addressing the issue requires a comprehensive approach focused on erosion control at the catchment level, protecting forests, and preserving riparian buffers, rather than solely relying on desilting operations.