 The section north of Townline Road was completed within a year. Around the same time, the third and final contract was tendered for the section north of Highway 3. On May 20, 1972, the Main Street Tunnel was opened to traffic at a morning ceremony featuring local officials and the Welland Police Association Pipe Band. Highway 140 was opened several months later, without ceremony, on October 5. It has remained unchanged since then, and was not affected by the provincial highway transfers in 1997 and 1998.
