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Port draft deepening
What it is
Increasing the water depth at berths and in approach channels so larger vessels can call. Deeper draft allows bigger container ships and bulk carriers, which lowers freight cost per tonne for the shipper
It is the main driver of capital dredging demand
Impact on industries
- Creates a sustained dredging pipeline, since every port competing for larger vessels must deepen or lose traffic to those that do
- For the port it is defensive and offensive at once - deeper draft attracts mainline services and transhipment that shallower rivals cannot handle
- Deeper channels silt faster in many locations, so capital deepening creates a larger recurring maintenance obligation
- Vessel upsizing is set by global shipping economics, so Indian ports are responding to a constraint determined elsewhere