Underground tunnels, shafts, chambers, and passageways are some of the most dangerous structures to build and work on. There are a number of risks that accompany this form of construction. Anyone and everyone working underground should be aware of the following:

*   Air monitoring and ventilation
*   Illumination (lighting)
*   Communication
*   Flood control
*   PPE
*   Emergency procedures (e.g. evacuation plans)
*   Check-in/check-out procedures
*   Explosives
*   Fire prevention and protection
*   Mechanical equipment

The importance of workers knowing and understanding these topics is vital to keeping them safe when on the job. Rules and procedures put out by OSHA and an employees company should always be followed. To learn more about these topics and other safety protocol when it comes to underground construction, please visit https://www.osha.gov/Publications/osha3115.pdf.