What are the main hazards in construction? What are the main hazards in construction? « Back to Table of Contents Among the dangers in construction are: •Falls from working at height, •Crush injuries in excavation work, •Slips and trips, •Being struck by falling objects, •Moving heavy loads, •Bad working positions, often in confined spaces, •Being struck or crushed by a workplace vehicle, •Receiving injuries from hand tools, •Inhalation of dust, •Handling of rough materials, •Exposure to dangerous substances (chemical and biological), •Working near, in, or over water, •Exposure to radiation, •Loud noise, •Vibration from tools or vibrating machinery.