Anchorage
An Anchorage is a designated area of water, usually near a port, where ships drop anchor to wait or carry out operations without occupying a berth. Ships anchor to wait for a free berth, await orders or documentation, take bunkers from a barge, wait for a favourable tide or daylight, undergo inspections, or shelter from weather.
Anchorages are charted and managed to keep waiting ships safely spaced and clear of navigation channels, under the oversight of the harbour master and vessel traffic services. Long queues at anchorage are the visible symptom of port congestion — ships burning money while they wait — and the time spent there feeds into laytime and demurrage calculations under charter parties. Efficient berth planning aims to minimise anchorage waiting, since idle ships at anchor represent lost time and cost across the supply chain.
Ships at anchorage are ships not earning — a long anchor queue is the classic sign of port congestion and a driver of demurrage claims under charter parties. Managing arrivals so vessels spend minimum time at anchor is a real cost lever, which is why anchorage waiting is watched closely across shipping.
Why do ships wait at anchorage?
To wait for a berth, orders or documents, to bunker, to await tide or weather, or for inspection.
How does anchorage relate to demurrage?
Time waiting at anchorage can count toward laytime, and delays there can lead to demurrage under a charter party.