High Quality Content by WIKIPEDIA articles! The Royal Albert Bridge is a railway bridge that spans the River Tamar in the United Kingdom between Plymouth, on the Devon bank, and Saltash on the Cornish bank. Its unique design consists of two 455 feet (138.7 m) lenticular iron trusses 100 feet (30.5 m) above the water, with conventional plate-girder approach spans. This gives it a total length of 2,187.5 feet (666.8 m). It carries the Cornish Main Line railway in and out of Cornwall.