Welland Canal Bridge 11 Welland Canal Bridge 11 Bridge 11, also known as the Allanburg Bridge, is a vertical-lift bridge over the Welland Canal within the City of Thorold and community of Allanburg, Ontario, Canada. The location was used for the groundbreaking ceremony for the canal. It was constructed and completed in 1930. The bridge carries Hwy 20 connecting Niagara Falls to Fonthill. The bridge has a main span. It was designed by Harrington, Howard & Ash, the predecessor of HNTB. It was rehabilitated in 2001 and is a through-truss vertical-lift bridge with clearance for shipping. On August 11, 2001, the bridge was struck
Welland Canal, bridge 13 By-Pass. Construction proceeded through the 1972 shipping season, and by the end of that season, work was close to completion. In the late evening hours of December 15, 1972, the Main Street Bridge raised to allow the passage of the Georgian Bay - officially the last ship through the city of Welland. In fact, the bridge was raised again the next day to allow a St. Lawrence Seaway service vessel to pass, but the Georgian Bay remains the official last passage under the bridge in most historical records. Following the closure of the canal at the end of the 1972