Along with the quick development of bridge construction in Indonesia, the role of work accident risk control is felt to be increasingly important. But in reality the implementation of the Occupational Safety and Health Management System (SMK3) in general is still often overlooked. The bridge in general is a construction that facilitates transportation routes through rivers, lakes, highways, railways and others. Steel bridges material are made of steel and its construction is considered in the needs of a splay can be in the form of a continuous frame or propyl steel. The purpose of this study is to examine the potential for workplace accidents in steel bridge projects. in this study use qualitative method with research based on government regulations PU no. 05 of 2014 concerning guidelines for occupational safety and health management systems (SMK3) construction in public works. The results were 7 jobs with 20 activities and 55 occupational risk incidents at the steel frame bridge construction work. Types of work accidents include health problems, accidents due to conditions, accidents caused by the use of work tools that are wrong, injured irritation of eyes and lungs and skin because not using personal protective equipment, accidents caused by workers not using personal protective equipment according to standards, fall or slip when reinforcing and rolling or casting, exposed to sparks during welding, sparks when burning asphalt and injured because the distance between workers is too close to accidentally injuring each other. The overall risk rating for occupational hazards in steel bridge projects as a whole is 8.3 which is categorized as "Medium Risk" and the highest potential for workplace accidents is asphalt with an 8.5 scale which is categorized as "Medium Risk.