Most of the bridges that we blew up in WWII were built in the 19th century or before. They were often built out of stone and mortar or in many cases wood. They were built prior to modern advances in structural steel, concrete and the ability to make concrete denser. We didn’t need plans because we KNEW that there weren’t piles driven 100 feet into the ground, everything structural was visible and we could use as much explosive as we wanted and we could put it everywhere because we weren’t trying to hide anything. AND when we blew them up, stuff flew everywhere, it didn’t just collapse down like this bridge did.
Though interestingly enough, out of the 2 bridges in the pictures everything structural was visible on this bridge when you look at the old pictures. I was thinking that even without training exactly where I would put explosives if I were a terrorist but then they would be out in the open for anybody to see so once again it does not make sense.
Nevermind, maybe it does make sense. Only have to take out one pylon to take out the whole bridge post 1919. LOL, I won't tell where I though was the best place to put explosives with an untrained mind and he found this info on the internet.
Just like I thought no demolition expert needed.