First Colony Foundation Using Archaeology and Historical Research to Find Sir Walter Raleigh's Roanoke Island Colonies
In Search of the First Colony

Wall

Contents
The Earthwork
Ditch
Ditch Corner
Ditch Prism
Ditch Wedge
Wall
Wall Corner
Wall Prism
Wall Wedge
Results
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The wall of Fort Raleigh was divided into 30 different 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. Total volume was calculated by the following equation:

Total Volume = Volume Trapezoid Sectors + Volume Corner Sectors + Volume Wedge Sectors.

It was assumed that the width of the wall was the same throughout. It was also assumed that the west wall had a gap in it, just as the trench was not completed on the west side of the fort.

Trapezoid

Wedge

Corner

Total Volume

Minimum Estimate:

6904.3

685.984

1674.088

9264.372 ft^3

Maximum Estimate:

8584.95

1171.647

2029.28

11785.88 ft^3

Maximum - Minimum:

2521.505

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