And a contrast to Kerr Mill down in Rowan County . . .
This is the Old Mill of Guilford County, the county that I live in. This is just ten miles from my house and is four years older than Kerr Mill. The Old Mill was built in 1819 by Joel Saunders. It grinds (as it is still a working mill) corn and wheat daily.
When the road that runs in front of the mill was built in 1932, the original wooden flume which provided water from the dam pond to the overshot at the water wheel was replaced by this 26" steel pipe (which from the look of it is the original pipe).
An interesting side fact - Guilford County was created out of Rowan County in 1771. However, due to the large population of Quakers in the area who were strict abolitionists, there were no huge plantations or large slave holdings as there were south of the area down around Salisbury.