The ditch of Fort Raleigh was divided into 34 separate sectors in order to estimate the volume of the dirt removed and given a unique sector number. These sectors were classified based on their shape as either a trapezoidal prism sector, a corner sector, or a wedge sector. In order to obtain the minimum and maximum estimations, each sector was measured midpoint to midpoint. The Total volume was calculated by the following equation:
Total Volume of Dirt Removed = Volume Of Trapezodial Prism Sectors + Volume Of Corner Sectors + Volume Of Wedge Sectors.
| Trapazoidal Sectors | Corner Sectors | Wedge Sectors | Total | |
|---|---|---|---|---|
| Minimum Estimate: | 8537.76 | 994.96 | 848.9 | 10381.62 ft^3 |
| Maximum Estimate: | 10137 | 1596.5 | 935.5 | 12669 ft^3 |
| Maximum – Minimum | 2287.38 |
