- The bridge was originally constructed in 1850, and was severly damaged by a fire in 1970. Most of the bridge was completely rebuilt, but it included the old tubular towers, but reinforced with archways. The new and refurbished bridge opened in 1971.
- The original bridge was constructed out of need for a railbridge over the Menai Strait, as the nearby Menai Suspension Bridge was found unable to support a railine.
- The rebuilt bridge carries the same rail line across the Menai Strait, but on its lower deck. The top deck carries A55 motorway over the strait.
- The original bridge was of a tubular iron design, the modern bridge is classified as a steel arch bridge.
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