This Pic of the Week is also the first in a series of educational series on the anatomy of bridge types. For each bridge, there will be some terminologies involving bridge parts where you have to find and identify them. These words you will find in a box below.
Our first bridge type for the matching activity: The Truss Bridge. Match the bridge terms with the ones you find in the picture above. Also find the parts that do NOT appear in this picture. Good luck!
The answers appear here.
As for the bridge photo, this was taken at the Henry Bridge in Winneshiek County, Iowa in 2009. The bridge spans the Upper Iowa River on Scenic River Road northwest of Decorah and represents an example of a truss bridge that was built by the Clinton Bridge and Iron Works Company. It was one of two primary bridge builders in Winneshiek County during the age of truss bridge building between 1870 and 1920. The 1911 structure has a total length of 121 feet, has an A-frame portal bracing and pinned connections. Closed since 2016, plans are in the making to either rehabilitate the bridge to reopen for light traffic or repurpose it for bike and pedestrian use. And it’s a practical and sensible idea too, for the high bluffs of the river present an excellent backdrop for the bridge and provides an exclusive photo opportunity, especially as there is parking nearby. In fact, from various angles, even from the bluffs, one can get a great photo opportunity of this unique historic bridge. My photo formed the basis of an educational exercise like this one, where people of all ages and with a keen interest on bridges and history can take part.