Port Terminal Railroad Association

The Port Terminal Railroad Association is an American terminal railroad that operates 185 miles (298 km) of track at the Port of Houston in Houston, Texas.

[1] It is an independent association comprising Port of Houston Authority, the Houston Belt & Terminal Railway, Union Pacific Railroad, BNSF Railway and Kansas City Southern Railway.

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A PTRA train in 2016, crossing one of two surviving swing bridges over Buffalo Bayou in Houston