The South West's main rail line will not be re-routed in the immediate future despite concerns over sea wall defences, the rail minister has said. Derek Twigg was responding to a Commons debate on Tuesday about the long-term viability of the line at Dawlish, which is just a few feet from the sea. Sea defences were not due to fail in the "foreseeable future", he said. Fears about global warming causing rising sea levels have prompted calls for the line in Devon to be re-routed. In the past three years, bad storm surges caused serious damage to the line, part of the main route to Plymouth and Cornwall.