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The next forum trivia night will take place on OCTOBER 30, 2019 at 8:15 PM Eastern.

Author Topic: Small road bridges  (Read 7770 times)

Max Rockatansky

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    • Sure, Why Not? (Highway Blog Spot)
Re: Small road bridges
« Reply #25 on: July 07, 2017, 11:22:20 PM »

^^ That's interesting, a wooden deck and no roof. I thought that most wood deck bridges are covered bridges, to protect the deck from the weather.

There are still some in Florida in use that don't have covers.  It looked like the boards are mainly just sealed with something? 

Big John

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Re: Small road bridges
« Reply #26 on: July 07, 2017, 11:26:27 PM »

Covered bridges were to protect the timber superstructure, which did not have treatments/sealants at that time.  Later wooden bridge decks are treated so it can withstand the elements.


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Re: Small road bridges
« Reply #27 on: July 10, 2017, 02:51:59 PM »

Thanks, Big John, for the enlightenment. I knew about half the story on why covered bridges are covered. Now I know the rest.


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