In filmmaker Sonya Stefans hometown of Sault Ste Marie Ontario a truss arch bridge straddles the St Marys River linking Canada to the United States But underneath the bridge a kind of liminal ...

Arch bridges are one of the oldest types of bridges and have great natural strength. Instead of pushing straight down, the weight of an arch bridge is carried outward along the curve of the arch ...

Did you know there is a tram system to take passengers to the top of the Gateway Arch? The Gateway Arch in St. Louis, Missouri is right along the Mississippi River. It was designed by Finnish-American ...

The bridge used his patented arch and truss design which, not surprisingly, is called the “Burr arch-truss” to this very day. (If you visit a covered bridge, and there’s an arch in it ...