Track containers through Northwest Seaport Alliance (Seattle / Tacoma).

Gateway visibility

The Northwest Seaport Alliance directory covers both Seattle and Tacoma and includes marine terminals, rail yards and specialized cargo facilities. It is a gateway network, not one pickup address. An update that says NWSA needs a terminal name and harbor before dispatch can act on it. Use the directory to distinguish similarly named facilities and then follow that operator’s instructions for the actual cargo type.

• Resolve the harbor and individual facility first; the alliance directory includes more than container terminals.

Carrier milestones and terminal confirmation

CargoScope follows ocean-container journeys worldwide through supported shipping lines. Terminal and rail milestones appear only when supplied for that shipment. A directory page does not mean a direct terminal integration. Confirm live availability, holds, customs release, appointments and free time with the facility or responsible carrier before dispatch.

• Reported discharge and terminal location
• Rail, outgate, and delivery handoffs where available
• Empty-return and exception context for follow-up work

Free-time and exception pressure

Terminal delays can create demurrage, detention, customer-update work, missed delivery appointments, and dispatch rework. CargoScope does not publish unsupported terminal fee calculations on these pages; it helps teams surface status changes and risk signals so the right person can verify exact terminal, carrier, and contract rules before costs escalate.

What you'll see in CargoScope

The timeline shows confirmed arrival and discharge separately, as in this illustrative example. A terminal appears when the line reports it; availability, holds and free time still come from the terminal.

Official sources

Questions