A Look at Miners
Inches
A miner's
inch is not a measure of length, but it is the
measurement of the rate of water flow in a miner's sluice.
Flow was measured by a hole one inch square with a head of one
inch. Generally, one miner's inch is a flow of 1.5 cubic feet
per minute You will find references to "miner's inches" in old
water right filings and notices, as well as older decrees
governing water rights.
As water demand increased with the development of large-scale
mining technologies and the development of irrigation uses, the
miner's inch became an inadequate unit of measurement for flow
rates, and was replaced by cubic feet per second.
A miner's inch is not the same in all of the states:
|
State |
Number of miner's inches per CFS
(cubic foot per second) |
|
Idaho, Kansas, Nebraska, New Mexico, North
Dakota, South Dakota |
50 miner's inches |
|
Arizona, California, Montana,
Oregon |
40 miner's inches |
|
Other states |
38.4 miner's
inches |
|