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An old guy in Bend showed me a trick for setting posts in rocky ground
I was struggling on a job last fall, hitting solid rock every few inches with my auger. This retired contractor who lived next door came over, watched for a minute, and said, 'Kid, you're fighting it. Just pour a bag of gravel in the hole first, then set your post and pack the concrete around it.' I tried it on the next post and it worked perfectly, letting the post settle straight without needing a perfect hole. Has anyone else found a good workaround for super rocky soil?
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danielowens3d ago
We hit solid limestone all the time here. My crew uses a digging bar to chip out a rough hole, then we pour in about six inches of crushed stone before the concrete. It lets the water drain and stops frost heave from pushing the post out of line.
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ray6133d ago
Always thought you needed a clean hole for concrete. That gravel trick is a total game changer though. Works way better than fighting the rock.
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