Saltash is a town and civil parish in southeast Cornwall, England, UK. It has a population of 16,184 at the 2011 census. It lies in the south east of Cornwall, facing Plymouth over the River Tamar. It was in the Caradon district until March 2009 and is known as "the Gateway to Cornwall". Saltash is best known for Isambard Kingdom Brunel's Royal Albert Bridge, a towering 134-foot bridge, constructed in the 1850s, which frequently transports trains over the River Tamar.