Falls Bridge closed to day traffic beginning April 19 Closure will be from 7:30 a.m. to 4:30 p.m. Beginning Monday, April 19, the Falls Bridge, located on Route 175, will be closed during the daytime to traffic for about four days, while New England Boring Contractors conducts geotechnical explorations of the site, according to Shawna Ambrose, Blue Hill town administrator. “This work will require that the bridge be closed during daylight drilling operations, which will be between the hours of 7:30 a.m. and 4:30 p.m.,” Ambrose said during the April 5 select board meeting. The Maine Department of Transportation “will be installing variable message boards starting Monday, April 12, to alert motorists to the bridge closure and detour route along Route 172. New England Boring Contractors will be setting up and removing the detour/bridge closure signage daily.”