2014 Virginia Code
Title 45.1 - Mines and Mining
§ 45.1-161.163. Separation of openings
A. In drift or slope mines, openings shall be separated by not less than 50 feet of natural strata, unless specifically approved in the roof control plan. All connections between openings not used for the coursing of air, travel, or haulage shall be closed with stoppings of fireproof material.
B. In shaft mines, openings shall be separated by not less than 200 feet of natural strata.
Code 1950, § 45-71; 1954, c. 191; 1966, c. 594, § 45.1-94; 1994, c. 28; 2005, c. 3.
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