Starting this topic for a new member. Am posting his letter and my initial reply. Already found some info and will post it here too, shortly...
I was researching Gilbert M. Bush, Co. H, 2nd Battalion, 313th Regiment, 79th Infantry. I found correspondance on your web site. I wanted to ask a question about a Bailey Bridge that appears in a photograph of my father-in-law (also 313th - taken sometime between 1944 and 1945 in the European Theatre. The bridge has a sign on it that says, "CATFISH BUILT THIS." I've learned that CATFISH was a name for the 1254th Engineer Combat Battalion. There is a large circular sign about the Corp of Engineers sign that has the number "40" on it. I am wondering if the number "40" refers to the bridge itself or if it is a highway sign. My interest is to identify where this particular bridge was located.
Thanks for any help you can offer.
Nice to chat with you.
First off, "40" refers to the load bearing of a bridge. Most common types which you'll run by are "40" and "70". Please see attachment for further clarification.
I will start a topic on the forum, and you can join in. I will post whatever I find on it, so you and everyone can benefit from the research.