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Thanks to all for your input. Well noted.

I have a 70-foot trussed pipe bridge that will eventually be loaded with 3-levels of piping, some liquids, some gas. What is the acceptable amount of deflection in such a bridge?

Thank you, good ideas.

Out client wants to support a 12'x36' 67 ton Compressor on a caliche bed in east Texas. I have done this kind of thing before using a sand box type foundation. Sand over structural fill. Caliche is used more often in south Texas for road sub-grades. Even TxDOT hasn't found caliche to be the...

Thanks to all for the good information.

Thanks very much for that.

Thanks. It is hard to find anything definitive. Pipeline Launchers/Receivers are usually about three feet above grade, Valves, hand-wheels can be taller. I will try your suggestion.

I am a Structural Designer wanting to know what the guidelines for horizontal hand-wheels and their height above grade. If anyone knows where it might be addressed in OSHA, please let me know. These are hand-wheels that are not typically used very often, but only when isolating a line. Currently...

I am a Structural Designer wanting to know what the guidelines for horizontal hand-wheels and their height above grade. If anyone knows where it might be addressed in OSHA, please let me know. These are hand-wheels that are not typically used very often, but only when isolating a line...