LOVELAND — It has been months of mangled personal schedules, seasons of lost business, hours of counting cement trucks grinding their way through the canyon and, at least early on, disruptive night work muted by drawn shades and ear plugs. But the painstaking process of reconstructing U.S. 34 through the Big Thompson Canyon, made necessary by the massive and devastating 2013 flood, will finally offer a measure of relief Thursday afternoon.