The
Thames Tunnel is an underwater tunnel, built beneath the
River Thames in London, connecting
Rotherhithe and
Wapping. It measures 35 feet (11 m) wide by 20 feet (6 m) high and is 1,300 feet (396 m) long, running at a depth of 75 feet (23 m) below the river surface measured at high tide. It was the first tunnel known to have been constructed successfully underneath a navigable river, and was built between 1825 and 1843 using
Marc Isambard Brunel's and
Thomas Cochrane's newly invented
tunnelling shield technology, by Brunel and his son
Isambard Kingdom Brunel.