to occur even after the provincial government posted a special warning sign with flashing yellow lights on the curve, was cited by residents of the area as an important factor in favour of the northward extension of Highway 400 to Sudbury. A dual-phase realignment of Highway 69 at the curve took place between 2008 and 2012. In the first phase, which began in 2008, the four-laned route was built from Rock Bay southward for five kilometres to bypass the curve, following which the future southbound set of lanes was opened to traffic as a temporary two-lane route on July 27, 2010. In the second phase, which began in 2009, the four-lane construction was completed from the end of the existing four-lane segment at Estaire to the northerly end of the realigned route at Highway 637. The completed four-lane route, now including a full interchange with Highway 637, was opened to traffic on August 8, 2012, and the former S-curve alignment of Highway 69 is now a local road named Murdock River Road, while the former alignment of Highway 69 leading north is now an extension of the local road to the military training facility at Burwash. The extension added to the length of the highway. Major intersections The following table lists the major junctions along Highway 637. References 637 Roads in Sudbury District