 The Toronto Civic Railways opened the St. Clair streetcar route in 1913 along St. Clair Avenue West between Yonge Street and the Grand Trunk Railway crossing (near today's Caledonia Road) to serve small developed areas in a newly annexed section of the city.Previously, the only streetcar service near this area was the Davenport line of the Toronto Suburban Railway (along Davenport Road) and the Avenue route of the Toronto Railway Company (ending at Avenue Road and St. Clair Avenue).At the east end of the St. Clair line, passengers could connect with the radial cars of the Metropolitan line of the Toronto and York Radial Railway running on Yonge Street.