Intermodal engineering By Brian Schmidt | May 20, 2021 | Last updated on August 7, 2025 Email Newsletter Get the newest photos, videos, stories, and more from Trains.com brands. Sign-up for email today! Get Updates Intermodal engineering Wood planks were common for building piggyback ramps. Large planks formed rub rails (well-used judging by the scars) along the edges, with a notch for the flatcar coupler and a steel bridge plate on the right. Classic Trains magazine collection
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