Welland Canal and crossings are numbered from north to south. The following illustration depicts the profile of the Welland Canal. The horizontal axis is the length of the canal. The vertical axis is the elevation of the canal segments above mean sea level. If assigned by the St. Lawrence Seaway Authority. The original bridges across the fourth canal were numbered in order. Numbering was not changed as bridges were removed. Welland Canal The Welland Canal is a ship canal in Ontario, Canada, connecting Lake Ontario and Lake Erie. It forms a key section of the St. Lawrence Seaway. Traversing the Niagara Peninsula
Welland Canal, Bridge 15 15 was built ca. 1910 as a replacement for a wooden bridge formerly at the same location. During this time, the Third Welland Canal was still in use, however the need for expansion of the canal had been recognized. Accordingly, any new bridges were being constructed to standards which were expected to apply to the Fourth Welland Canal, which would not be completed until 1932. As will be discussed later in this article, these standards were not set high enough and this fact would make the swing bridge a serious hazard to navigation decades down the road. During the early