Welland Canal, bridge 13 Welland, the bridge also links East Main Street (leading towards Niagara Falls) and West Main Street (providing access to roads leading along the Welland River to Wainfleet and Wellandport. It also provides a link between Niagara Street (formerly known as North Main Street leading to Thorold and St. Catharines, and King Street (formerly South Main Street, and also Canal Street), formerly leading to the Canada Southern Railway station, and on to Port Colborne. The "Chippawa Road" (as Main Street was then known) crossed the First Welland Canal (constructed between 1824 and 1829) via a wooden swing bridge with the pivot
Welland out of Welland, leading north to Thorold, St. Catharines and onwards via Queen Elizabeth Way. Port Colborne is linked to Welland by Highways 140 and 58. Port Colborne residents then can take the 406 further north. The Mid-Peninsula Highway, once constructed, can play an important role in the transportation patterns of Welland, as it might cross the Welland Canal along the Highway 58A corridor in the south of the city. Should that occur, Highway 406 will likely be extended to reach the new thoroughfare. Two of the three tunnels under the canal, Main Street Tunnel and Townline Tunnel, are located