I've always, always been amazed at how they got any of the horses over any of the bridges- never rode one that wasn't convinced you were trying to kill it and told you. Pontoons must have been the most clattery things ever- a shod horse would scare itself right up a tree and take you with it, I'm pretty impressed with all of those shots.
I forget exactly where- was it Lee's retreat, where the engineers pontoon bridge consisted of all manner of craft? How in heck did that work, different sizes, up and down, across the river when it was still pretty darn high? Had to be built well enough to cross an entire army- although I think the infantry crossed in the water, the taller men passing the shorter, still had to get those wagons across. There's a bridge you'd have paid a ton to see.
Yes, why are they so interesting? Flatten me- must have photographers, too- this string of boats, a really well built road across them- THIS teeny one is just cute. Hee, sorry. We're used to those feats of engineering- the one on the James, where Mark Jenkins told me the schooners were there to apply tension- for some reason that seems incredible. Then this dear little thing.
Even more impressed with this ' other' kind of bridge the engineers came up with, GEE whiz, you cut down enough trees, lay planks across??? I'm with Allie, I'm swimming.