Approval Granted for Tetrapod Groynes to Combat Erosion in Thiruvananthapuram

The Water Resources Department of Kerala has officially approved a proposal to construct tetrapod groynes along the Valiathura-Shanghumughom coastal stretch in Thiruvananthapuram. This initiative, backed by a cleared estimate of ₹7 crore, aims to mitigate severe coastal erosion that has significantly impacted this specific region, identified as one of the worst-hit areas in the district. The project scope includes not only the installation of tetrapod structures but also the reformation of existing seawalls. The approval follows a detailed project report submitted by the Chief Engineer of Irrigation and Administration and aligns with proposals highlighted during the Nava Kerala Sadas organized by the state government. Authorities have directed Superintending Engineers to establish strict deadlines and implementation schedules to ensure timely completion. While local residents have long demanded such protective hard structures due to intensifying erosion, the decision contrasts with previous scientific recommendations. A 2021 independent review by experts from the University of Kerala and the National Centre for Earth Science Studies had advised against hard structures, suggesting they aggravate erosion, and recommended adopting 'living seashore' models instead.