Replacing a railroad bridge

Thursday, January 26, 2012

4 comments:

Anonymous said...

At about 3:10 they fill in the dirt on the sides of the new bridge. The fill appears to be large black boxes. What are they made of? Are they hollow?

ambisinistral said...

I noticed that too, but I don't know what they are. I don't imagine that they're hollow, because they have to carry the wright of the train coming off of the bridge. Maybe they're put in to keep the earth from settling?

Erica L.Bowman said...

Thank you for the sensible critique. Me and my neighbor were just preparing to do some research about this. We got a grab a book from our area library but I think I learned more clear from this post. I am very glad to see such excellent info being shared freely out there.
DEWALT DW735 13-Inch, Two Speed Thickness Planer

Carlos N.Welch said...

This is very interesting, You're a very skilled blogger. I've joined your feed and look forward to seeking more of your magnificent post. Also, I've shared your website in my social networks!
Bogs Women's Classic Mid Tuscany Rain Boot