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Definition of adit

i. A horizontal or nearly horizontal passage driven from the surface for the working or dewatering of a mine. If driven through the hill or mountain to the surface on the opposite side, it would be a tunnel.

Synonym of: drift, adit level

See Also: tunnel

ii. As used in the Colorado statutes, it may apply to a cut either open or undercover, or open in part and undercover in part, dependent on the nature of the ground.

iii. A passage driven into a mine from the side of a hill.

Ref: Statistical Research Bureau


References



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