2 Colo. Code Regs. § 407-6-4
Current through Register Vol. 47, No. 20, October 25, 2024
Rule 2 CCR 407-6-4 - GROUND CONTROL1. Ground conditions that create a hazard to persons shall be taken down or supported before other work or travel is permitted in the affected area. Until corrective work is completed, the area shall be posted with a warning against entry and, when left unattended, a barrier shall be installed to impede unauthorized entry.2. Scaling shall be performed from a location which will not expose persons to injury from falling material, or other protection from falling material shall be provided.3. Where manual scaling is performed, a scaling bar shall be provided. This bar shall be of a length and design that will allow the removal of loose material without exposing the person performing the work to injury.4. Rock bolts and accessories used for ground support must be in compliance with American Society for Testing Materials Publication F432-95, as amended 2001, which is hereby incorporated by reference and must be installed according to manufacturer recommendations.5. When ground support is necessary, the support system shall be designed, installed, and maintained to control the ground in places where persons work or travel in performing their assigned tasks. Damaged, loosened, or dislodged timber or any other device used for ground support which creates a hazard to persons shall be repaired or replaced prior to any work or travel in the affected area.