Stabilized Construction Entrance Stone
Cubic yards and tons of coarse stone for a stabilized construction entrance (track-out BMP): tons = length x width x depth x unit weight / 2000. The common 50 ft x 14 ft x 6 in pad is 13 cy (~17.5 tons) - the load on site before the first truck rolls out. The geotextile separator under the pad is taken off separately; the AHJ sets the size.
Formula and source
volume_cy = length_ft x width_ft x (depth_in/12) / 27; tons = length_ft x width_ft x (depth_in/12) x unit_wt_pcf / 2000.
Pad take-off identity by name (length x width x depth x unit weight); first-principles volume arithmetic.
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