SMP Kolkata Pioneers Net-Zero Riverine Transshipment Hub Along Hooghly Estuary to Decarbonize Indo-Bangladesh Protocol and NW-1 Bulk Movements


KOLKATA / DIAMOND HARBOUR — In an aggressive move to decarbonize estuarine feeder traffic and accelerate low-emission multimodal freight operations across eastern India’s riverine network, the Syama Prasad Mookerjee Port Authority, Kolkata (SMP Kolkata), in coordination with the Inland Waterways Authority of India (IWAI), has officially commissioned a dedicated Green Barge Terminal at Diamond Harbour.

Strategically located downriver along the lower reaches of the Hooghly River, the newly operational terminal serves as a specialized transit and transshipment hub for zero-emission electric, hybrid, and alternative-fuel shallow-draft river barges operating along National Waterway-1 (NW-1) (Ganga–Bhagirathi–Hooghly river system) and the Indo-Bangladesh Protocol (IBP) commercial routes.

The commissioning addresses major environmental and navigational priorities outlined in the Ministry of Ports, Shipping and Waterways’ (MoPSW) Harit Nauka green river mobility charter and the Harit Sagar green port guidelines, providing an eco-friendly waterborne bypass around Kolkata's congested urban roadways and municipal canal choke points.

Addressing Estuarine Navigation Constraints and Urban Drayage Congestion

Historically, riverine bulk cargo moving between the inland manufacturing basins of eastern India (West Bengal, Jharkhand, Bihar, and Odisha) and river ports across Bangladesh suffered from severe physical constraints:

  • Tidal Draft Restrictions in Upper Estuary: Navigating the shallow navigational bars and sharp curves of the upper Hooghly River to reach the inner berths of Kolkata Dock System (KDS) forced commercial vessels to wait at outer anchorages for favorable high-tide windows, adding multi-day voyage delays.

  • Highway Gridlock on Border Corridors: Heavy commodities such as finished steel coils, fly ash, cement clinker, project cargo, and agricultural produce frequently reverted to long-haul diesel highway trucking, overwhelming national highways and creating severe multi-day vehicle queues at land border crossings like Petrapole–Benapole.

  • Quayside Diesel Emissions: Conventional river tugs and barges idling their marine diesel generator sets while waiting for discharging slots contributed to localized air quality deterioration along sensitive riverine and coastal mangrove ecosystems.

By activating a deep, tidal-neutral green handling terminal at Diamond Harbour, SMP Kolkata effectively shifts the core barge loading, discharging, and cross-docking operations downstream, avoiding upper-river tidal limits and drastically compressing round-trip transit turnaround schedules.

Catalyzing Indo-Bangladesh Waterborne Trade Velocity

The activation of Diamond Harbour’s green facilities transforms the economics of bilateral commercial trade conducted under the Indo-Bangladesh Protocol on Inland Water Transit and Trade (PIWTT):

  • Uninterrupted Fly Ash & Industrial Flows: Over 85% of bilateral waterborne trade comprises fly ash moving to Bangladeshi cement grinding plants in Narayanganj, Mongla, and Dhaka. The terminal enables high-capacity electric and dual-fuel barges to load directly from riverine feeder rakes and set sail without waiting for upper-estuary pilotage shifts.

  • Containerized Agro and Finished Goods Shuttle: The facility features dedicated bonded staging yards for containerized tea, leather products, and readymade garments (RMG), providing a high-speed river bridge directly connecting with mainline feeder loops at Haldia and Sagar Island.

  • Haulage Cost and Carbon Reductions: Shifting cargo from road corridors to electrified river barges yields a 28% to 35% reduction in per-tonne-kilometer transit costs while curtailing localized CO₂ emissions by more than 85,000 metric tonnes annually across the regional shipping fairway.

Ministerial and Port Leadership Perspectives

Presiding over the commercial activation ceremony at Diamond Harbour, senior administrative leadership from the Syama Prasad Mookerjee Port Authority stated:

"The Diamond Harbour Green Barge Terminal represents a defining operational evolution for inland and coastal navigation in Eastern India. By marrying river transshipment agility with zero-emission electrification and LNG bunkering, we are turning the historic Hooghly shipping channel into a high-velocity, low-carbon industrial transit artery. Diamond Harbour eliminates tidal waiting delays for our shipping partners while advancing our statutory commitments to make SMP Kolkata a pioneer in green port logistics under Maritime Amrit Kaal 2047."

Port operations confirmed that an initial rotation of 18 registered green barges—comprising battery-hybrid container vessels and LNG-powered dry bulk carriers—have been assigned regular weekly berthing slots at the terminal, with commercial cargo handling beginning immediately.