. "Redhill Viaducts" . . . "182.88" . . . "30.48" . . . . . . . . . . . . . "that over the River Trent" . . "Midland Main Line" . . . "June 1838" . "1839" . "Trent Viaducts" . . . "12.192" . . "Drakelow Viaduct" . "Trent Viaducts" .