That depends on the dimension of the dump body. The dump body could hold 15 - 20 cubic yards of material, typically. As for what can legally be hauled, it depends on the commodity and weight of the commodity per cubic yard, as well as state laws pertaining to what weight limits they allow for a tri-axle.
1 mi = 1760 yds → 3 mi = 3 x 1760 yds = 5280 yds
12 ft = 4 yds
how many ft is 11 yds
1m ~= 1.094 yds -> 340m ~= 340 x 1.094 yds ~= 371.83 yds.
3.347 acres.
192 ft / 3 yds = 64 yds 192 sq ft / 9 sq yds = 21.33 sq yds
1 mi = 1760 yds 0.1242742384 mi = 0.1242742384 * 1760 yds = 218.722659584 yds
36 in = 1 yd ⇒ 106 in = 106 ÷ 36 yds = 217/18 yds ≈ 2.94 yds
you should be able to get (volume wise) 3 cu yds in a 8 ft bed and roughly 2 in a short bed
36 in = 1 yd ⇒ 123 in = 123 ÷ 36 yds = 35/12 yds ≈ 3.42 yds
1 yd = 3 ft ⇒ 16 ft = 16 ÷ 3 yds = 51/3 yds ≈ 5.33 yds
One mile is 1,760 yards.