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Loading on temporary CMP culvert with crushed stone cover

Loading on temporary CMP culvert with crushed stone cover

Loading on temporary CMP culvert with crushed stone cover

(OP)
I am looking for a design guide to determine the suitability and minimum stone cover required for a temporary river crossing where CMP culverts are to be used with 1" crushed stone (for the crossing) cover to support a 90 ton truck load.  This temporary crossing would be in use approximately 1 month and need to support approximately 5 trucks/hr for 8-10 hrs a day.  Any design tools would be greatly appreciated.

AChwalibog

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