Gravel Machine For Sale

The calculations are really easy.You have to know how many acres your gravel pit covers, how deep the gravel bed is called head, then subtract how deep the overburden is topsoil and get your number.Mine is 7 acres in size, and with an acre being 42,000 square feet, and the gravel bed being 32 feet deep, i have 9,362,000 cubic feet of gravel.