These municipalities were annexed by Toronto between 1908 and 1911, and the western section of St. Clair Avenue became entirely managed by the City of Toronto. To stimulate development along what was then largely a rural road, the city's Toronto Civic Railways built a streetcar line from Yonge Street to Caledonia Road by 1912. This included the construction of a bridge across Nordheimer Ravine (after an earth berm collapsed) as well as what was termed the "Lauder Fill": the burying of the western branch of Garrison Creek, the final section to be routed into the city's stormwater system.