National recycles about 5 million railroad ties to be used for boiler fuel. This job alone offsets the greenhouse gas and fossil fuel impact of 25,000 people.
National Salvage & Service Corporation handles the removal and recycling of railroad ties. The job, which spans the eastern U.S., amounts to the recycling of about 5 million ties per year. National removes the ties and sorts them according to quality and wear, selling some for reuse in projects such as fences and retaining walls and grinding the rest to be used as boiler fuel.