1. It would be flat bottomed, and rectangular.
2. It would need (for lack of a better word) a keel. The keel keys into the causeway so it stays on track, and centered. It also reduces friction, as the entire barge does not need to come into contact with the Causeway. The weight would be centered over it.
3. The barge would require a bottom at a 4.6 degree slant in relationship the the top being level. In this pit it appears to be deeper on one end, than the other. Would like someone to take those two measurements, so I can calculate the angle between the two, and see if it is approx. 4.6 degrees. It would be a simple matter, as there are inexpensive laser which measure distance. I own one for playing Golf.
4. No wider than the 10 ft. section of one side of Khafery's Causeway, though I am told Kufu's Causeway was much wider. Twice as large?
So why is there this centered middle section cleared out, on what appears to be in the deep end, and at a slant angle which feathers out. Are stones just missing, or is it cut?
*Additionally, what kind of a boat is shallow on one end, and not the other?
Do any of the other pits have these feature, and does anyone have measurements?