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 9, 1841 at Lock No. 37 (Allanburg) of the First Welland Canal () (approximately 180 m north of today's Allanburg bridge), when an explosive charge destroyed one of the lock gates. However, a catastrophic flood was prevented when a guard gate located upstream of the lock closed into place preventing the upstream waters from careening down the route of the Canal and causing further damage and possible injury or loss of life. It was suspected that Benjamin Lett was responsible for the explosion. On April 21, 1900 about 6:30 in the evening, a dynamite charge was set off against the