Which of the following is a site hazard related to structures that span spaces?

• A. Pedestrians
• B. Ground conditions
• C. Trees
• D. Bridges

Answer: (D)

When you consider hazards from structures that span spaces, the key idea is a structure that crosses over an area and can affect anything passing beneath or nearby. A bridge fits this idea perfectly because it spans a space and sits above the work or travel path. The risk comes from how such a structure can fail, be damaged, or require clearance above a forklift path, potentially leading to falling objects, restricted headroom, or collapse hazards for people and loads below. That’s why bridges are identified as the site hazard in this context: they are the example of a structure that spans a space and introduces specific safety concerns. Pedestrians, ground conditions, and trees can be hazards on a site, but they don’t inherently represent a structure that spans a space the way a bridge does.