Q: Is drainage the natural or artificial removal of surface and sub-surface water from an area? ¶
A: Yes.
Q: Is drainage greater than point drainage and the excavation required is usually much less deep? ¶
A: Yes.
Q: Is drainage credited to Sir Hugh Dalrymple? ¶
A: Yes, and who died in 1753.
Q: Is drainage typically manufactured from concrete? ¶
A: Yes, and steel, polymer or composites.
Q: Is drainage especially important in tree fruit production? ¶
A: Yes.