However , construction started on such a scheme on 1 January 1931 .
Various plans for a direct line bypassing Greenisland had been proposed over the years but the engineering problems faced by having to cross Valentine 's Glen near Whiteabbey and surmount Mossley Col had precluded these .
Construction started on such a scheme on 1 January 1931 .
Various plans for a direct line bypassing Greenisland had been proposed over the years but the engineering problems faced by having to cross Valentine 's Glen near Whiteabbey and surmount Mossley Col had precluded these .