Operation
The bridge carries two tracks across the Willamette River and is used by freight trains and Amtrak trains. Although BNSF Railway owns and controls the bridge, the company is required to allow access to other railroads, under a law already in force by 1906 allowing common use of railway bridges across navigable waterways. Signals on both approaches prevent trains from entering the bridge when the lift span is up, but as a precaution, all trains are still required to radio the bridge tender to obtain permission to cross.
Read more about this topic: Burlington Northern Railroad Bridge 5.1
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