…Dave, have not been in that part of the country for decades to see his “covered bridges” but have heard of people constructing bridges with RR flat cars…It all makes sense as they surely would support plenty of weight necessary for a bridge on a country road, etc…
A company in billings MT, that builds such bridges
And a case study done for county governments in the state of Iowa, comparing the approx cost of a concentional reinforced concrete slab span ($65/sq ft) versus building the same span using recycled flat cars ($39/Sq ft) for low volume routes, onl
…Makes perfect sense to me to figure up a plan as the Co. A G showed in his post…Flat cars must have very strong frames spanning their length. How many times have we seen construction equipment being shipped via rail on a flat car…{such as bulldozers, etc…}.
Seems to me an economic way for some county to install a bridge out on that county rd. that has very little traffic and figures it doesn’t pay to have a professonal bridge designed and constructed at the sight. The RR car should be an economic way out.
I used to railfan Kirby yard in Kirby, TX quite a bit, and one of the bridges for the yard service road is made from a flat car. Always thought that was the ultimate in recycling. I will see if I can’t find a pic (I grew up in that area and moved away before I got a digital).
one can only imagine the conversations each bridge will provoke…
While crossing the covered bridge: quotes from the movie “The Bridges of Madison County”
“When I think of why I make pictures, the reason that I can come up with just seems that I’ve been making my way here. It seems right now that all I’ve ever done in my life is making my way here to you.”
After crossing the boxcar bridge, the young railfan parks the car along the side of the road and exclaims to his bride, “Hey, this is really cool! Is this an old SP car? I haven’t seen that marking before. Hmm…hey, sweetie, did you bring my notebook? Where’s my camera? Why do you look so angry, dear? I promise this won’t take long. Sweetie, unlock the door, come on…please. The light is going to change. Just hand me my camera. Oh, sweetie, don’t cry.”
Hmmmmm. All the birdges around here are made of flatcars. there is even one that is 2 flatcars welded end to end. maybe I will try to get a photo of it.
After one of the LA earthquakes that did so much freeway damage - an engineering firm proposed a temporary replacement freeway bridge constructed out of steel pilings and rr flat cars. They built a prototype that passed initial testing but I never heard anything further. Seems like a good idea.
While I’m sure that a boxcar might make a reasonable light use covered bridge, I’d want a second way across for stuff that wouldn’t fit through the boxcar, or was simply too heavy.
…Bridge building with flat cars say…using them side by side to make a 2 lane bridge and adding {on pilasters}, as many as needed lengthwise to get across whatever one is bridging should not have very much weight restriction. Add whatever road surface one needs and bingo…a bridge. Of course some kind of side rails would be required.