and protecting horses hooves.
I have seen drive ways rutting out with the stuff. Three possible reasons
1. missing a class xx subgrade,
2. Decomposed granite is a soft crush-able material
3. Need larger sized aggregate in mix to support vehicles.
I am very very happy with my Class 5 on flat ground. Even so fines will
wash out in heavy rains.
The epa reference looks like a great place to start!
http://water.epa.gov/polwaste/nps/upload/2003_07_24_NPS_gravelroads_gravelroads.pdf
Is a great lead thanks!
The listed address spells gravelroads, twice, each time as one word.
David Merrick, SE and sometimes CE and surveyor
Sacramento
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