How many categories of hazards are described in an excavation project?

In an excavation project, there are three primary categories of hazards that are typically identified. These include:

1. Soil-related hazards: These involve the potential for collapses, cave-ins, or the instability of soil itself, which might lead to worker injury.

2. Environmental hazards: This category encompasses risks associated with adjacent utilities (like water, gas, or electric lines) and natural factors such as weather conditions that can affect the safety of the excavation site.

3. Operational hazards: These involve the machinery and equipment used during the excavation, as well as the processes involved in the excavation work that could lead to accidents or injuries.

Understanding these categories is crucial for developing effective safety measures and protocols to mitigate risks during excavation activities.