From the occupational safety and health perspective, working in the construction industry is among the most risky. The reasons are mainly based on the fact that the work is performed at the work environment where the situation is constantly evolving in terms of both the performance of work activities, the number of participants, work at different levels (at height, excavations, tunnels), transport (horizontal, vertical) as well as in very changing weather conditions (heat, cold, wind, rain, snow). During construction work, workers are exposed to health damage risks, such as diseases related to asbestos exposure, back pain, vibration disease (white finger syndrome), and skin ulcers due to the use of hazardous substances like cement. The OiRA tool for construction workers deals with general risks with an emphasis on chemical safety and the safety of work equipment, slipping, tripping, falls from heights, exposure to dangerous substances, the risk of electrical current, manual handling of loads, stress, violence and so on. This risk assessment contains proposed solutions to reduce or eliminate the risks. All requirements, listed in the OiRA tool, are linked to legislation.