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Join Date: Feb 2001
Location: Cumberland County 5A
Re: Stone/Gravel Question
Dealing with limestone, "crusher run" or modified is usually the best choice. Or was years ago when I worked with it on a regular basis? 3A modified base, if the ground was a bit soft. 2A modified on firmer ground.
When I expanded our driveway at home some years ago, used 2RC for the base, which is basically modified with more limestone chips, than dirt. I don't think any of our local quarries make 2RC now?
2B limestone for a driveway? Not so much, as it continues to roll around, not compact. Broom limestone dust into it, slightly better - until someone spins a wheel in it.
Our camp driveway in Tioga Co. is steep, so it's hard to keep gravel in place, even with small diversion ditches to redirect water during heavy rains. The lower section was always soft due to it being a wet area and heavy rains tended to wash any gravel down onto the twp. road.
Four years ago the twp. boys filled the lower section ruts with some nasty, rocky stuff, when they were working on the road. It hasn't rutted since then.
I thanked 'em, even if I did have to level it out myself. Filled the voids in with finer sandy gravel and it's knitted together pretty well now.
Some folks' learnin' curves just look like circles...3A Camp/also hunt 4B