The longest train ever recorded was a BHP Iron Ore train in Western Australia on June 21, 2001.
Key details:
- Length: 7.353 kilometers (about 4.57 miles)
- Cars: 682 loaded iron ore wagons
- Locomotives: 8 GE Dash 9 locomotives distributed throughout the train
- Gross weight: Approximately 99,734 tonnes
- Route: From the BHP (now BHP Billiton) Yandi mine to Port Hedland
This was a one-off record-breaking run, not a regular operation. The train took over 10 hours to complete its journey and was controlled with distributed power technology (locomotives at the front, middle, and rear).
For comparison:
- Regular BHP iron ore trains today often run with 268 wagons and 2–4 locomotives, around 2.4 km long.
- The longest regular scheduled train is probably Africa’s “Sishen–Saldanha” iron ore train in South Africa, which runs with 342–375 wagons, reaching about 3.8 km.
- In the United States, Union Pacific and other railroads occasionally run “unit trains” over 3 km long, but not close to the BHP record.
So, the 7.353 km BHP train remains the undisputed world record for the longest train ever operated.