C. Positive-acting stopblocks or derails shall be installed on the haulage track in the slope near the top of the slope. The stopblocks or derails shall be in a position to hold or stop any load, including heavy mining equipment, to be lowered into the mine until such time as the equipment is to be lowered into the mine by the hoist.
D. At the bottom of each hoisting shaft and at intermediate landings, a runaround shall be provided for safe passage from one side of the shaft to the other. This passageway shall be not less than five feet in height and three feet in width.
Code 1950, § 45-68.4; 1954, c. 191; 1966, c. 594, §§ 45.1-69, 45.1-89.1; 1978, c. 729; 1983, c. 111; 1994, c. 28; 1996, c. 774; 2005, c. 3.