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| Re: Sign says it all ! (237275) | |||
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Re: Sign says it all ! |
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Posted by WMATAGMOAGH on Sun Jun 26 08:38:53 2011, in response to Sign says it all !, posted by B68 slow poke on Sun Jun 26 00:38:43 2011. I forget where I saw them, but on a highway somewhere, they had mercury tubes or something similar above the highway before low crossings, and trucks were instructed to drive under the tubes to determine they would also safely pass the low overpass. |
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