Abstract
This research note explores the challenges and methodologies of dredging in India’s tropical coastal regions. Influenced by seasonal monsoon winds and significant sediment contributions from the Himalayas, these areas require careful management. Dredging is crucial for maintaining navigational channels and infrastructure, but it poses distinct environmental challenges. The study emphasizes the need for comprehensive planning, stakeholder analysis, and sustainable practices. Marine Spatial Planning (MSP) is highlighted for its ability to integrate diverse perspectives and promote cooperation. Assessing sediment flow patterns can optimize dredging schedules and reduce maintenance frequency. Technological advancements, such as unmanned hydrographic survey vessels and AI/ML applications, enhance monitoring and execution of dredging projects. Sustainable sediment disposal methods, like Confined Aquatic Disposal (CAD), are necessary to minimize environmental impact. In conclusion, sustainable dredging in India requires a balance between economic growth and environmental conservation. By adopting integrated approaches and advanced technologies, India can protect its coastal ecosystems while supporting trade and infrastructure development.
