Supplying Vessels at Anchorage and Alongside

Two Very Different Delivery Situations

A vessel alongside a berth is connected to the shore: trucks can reach the quay, cranes and the ship's own gear can lift stores aboard, and crew can move between ship and shore. A vessel at anchorage is offshore in a designated anchorage area, reachable only by boat, with everything that implies for cost, timing and weather. The same delivery is a routine quay drop in one case and a launch-boat operation in the other.

Which situation applies depends on the port and the vessel's business. A ship may anchor while waiting for a berth, while bunkering, while conducting crew changes or storing, or because it has no cargo reason to come alongside. Anchorage supply is common at congested ports and at hubs where vessels call specifically for stores, bunkers or spares without berthing.

Understanding which situation will apply at the delivery port is the first step in planning, because it determines the equipment, the cost and the margin needed in the schedule.

Delivery Alongside

Alongside delivery is the simpler and cheaper case. Goods are trucked to the quay and brought aboard during the port stay using shore cranes, the ship's cranes or manual handling for smaller items. Access is governed by terminal security: gate passes, port ID and escort requirements vary, and these need arranging in advance with the agent and terminal.

The constraint alongside is the port stay itself, which is fixed by cargo operations and can be short. Stores have to arrive within the working window, correctly documented and cleared, or the ship sails without them. Coordination with the agent on the berth, the gate procedure and the timing relative to cargo work is what keeps a delivery on time.

Even alongside, terminal rules can complicate access: some container and bulk terminals restrict vehicle movements during cargo operations, so the delivery slot has to fit around the terminal's working pattern rather than the other way round.

Delivery at Anchorage by Launch

At anchorage, stores and spares go out by launch boat (a supply or workboat) licensed to operate in the port's anchorage. The launch is booked through the local agent or a launch operator, loaded at a shore base, and run out to the vessel, where goods are transferred by the ship's crane or by hand depending on size and sea state. The crew rigs to receive the delivery at an agreed time.

Launch delivery adds cost: the boat hire, the crew, and often a minimum charge regardless of consignment size. It also adds time and uncertainty, because the launch must be scheduled, the vessel must be ready, and the transfer must fit the boat operator's other runs. Consolidating deliveries into one launch run rather than several keeps cost down.

The biggest variable is weather. Wind, swell and sea state can make a transfer at anchorage unsafe, delaying or cancelling a launch even when everything ashore is ready. Plans for anchorage delivery need a weather margin and, where possible, a fallback such as delivery at the next port or alongside.

Timing, Access and Documentation

Both situations depend on accurate vessel information: the ETA, whether the ship will berth or anchor, the expected duration, and the contact details for the master or chief engineer receiving the goods. Working backward from the time the goods must be aboard, the supplier plans clearance, transport to the quay or launch base, and the handover.

Customs clearance happens regardless of how goods reach the ship. Spares declared as ship's spares in transit, with correct documentation and a local agent to clear them, can move through customs before the quay drop or launch run. Bonded and dangerous goods add their own steps that must be completed before the goods leave the shore.

The local agent is central in both cases: arranging gate access alongside or booking and coordinating the launch at anchorage, and confirming the vessel is ready to receive. Supplying the agent with complete information and documentation in advance is what makes the handover work.

Cost and Risk Differences

Alongside delivery is generally lower cost and lower risk: no boat hire, no weather-dependent transfer, and predictable quay access within the port stay. The main risks are a short stay and terminal access rules, both manageable with planning.

Anchorage delivery carries the launch cost, the weather risk and tighter coordination. For a planned, non-urgent supply it may be worth waiting for the vessel to berth at a later port instead of paying for a launch. For urgent spares it may be the only way to reach the ship in time, and the launch cost is justified against the cost of delay.

The practical decision is whether the supply must happen at this port and in this situation, or whether a cheaper alongside delivery downstream meets the need. That judgement balances urgency, cost and the reliability of the weather window.

How Sea Clean AS Plans Deliveries

Sea Clean AS plans deliveries around whether the vessel will be alongside or at anchorage. At Norwegian and North Sea ports it can attend directly, delivering to the quay or arranging a launch to anchorage and, where useful, providing technician attendance for ballast water treatment service. At global hub ports it supplies into the port and coordinates the launch or quay delivery with the vessel's local agent.

Because anchorage delivery is weather- and time-sensitive, the company plans with margin and, where the schedule allows, advises whether an alongside delivery at a later port would be cheaper and lower-risk. The aim is the goods aboard within the vessel's window, documented and cleared.

Operators should tell Sea Clean the vessel name, IMO, port, ETA and whether the ship will berth or anchor, at post@seaclean.no. That detail lets the company plan the right delivery method and brief the agent accordingly.

Frequently asked questions

How are stores delivered to a ship at anchorage?

Stores and spares go out by launch boat booked through the local agent or a launch operator, loaded at a shore base and run to the vessel, where goods are transferred by the ship's crane or by hand. The delivery is scheduled with the crew and depends on weather and sea state.

Why is anchorage delivery more expensive than alongside?

Anchorage delivery adds the cost of hiring the launch boat and crew, often with a minimum charge regardless of consignment size, plus tighter coordination and weather risk. Alongside delivery uses the quay and existing cranes, avoiding those costs.

What happens if the weather stops an anchorage delivery?

Wind, swell or sea state can make a transfer unsafe, delaying or cancelling the launch even when everything ashore is ready. Plans for anchorage delivery should include a weather margin and, where possible, a fallback such as delivering at the next port or alongside.

Can Sea Clean AS deliver to a vessel that will not come alongside?

Yes. At Norwegian and North Sea ports it can arrange a launch to anchorage directly, and at global hubs it coordinates the launch delivery with the vessel's local agent. It also advises when waiting for an alongside delivery at a later port would be cheaper and lower-risk.

Sources

Related articles

• What a Ship Chandler Supplies: Stores, Spares and Bonded Goods
• Ship's Spares in Transit: Customs, HS Codes and Documentation
• Emergency Delivery of Critical Spares to Ships
• Supply Windows and Port Calls in Norway and the North Sea
• Hand Courier and Onboard Courier Delivery of Ship Spares
• Supplying BWTS Spare Parts to Vessels Worldwide