Downed power lines: It may be hard to see power lines if they are in the water or under debris, so use caution. Coming in contact with downed power lines can result in severe burns or electrocution. If you see any power lines, assume that they are live. Mark a danger zone around them and stay at least 10 feet away. Ensure that only well-trained and well-equipped workers try to repair these lines.

Dangerous floodwaters: The water in flooded areas can be contaminated with toxins from waste sites, as well as bacteria and mold. Also, remember that alligators and snakes can lurk in this water in some areas of the country. Workers should wear waterproof boots and rubber or latex gloves. Goggles and chemical-resistant clothing are also recommended. Be sure to use N-95 NIOSH-approved respirators if mold is present. If the area is enclosed, try to ventilate with fresh air. Before entering the space, ensure that all workers are current with their tetanus shots (vaccinated within the last 10 years).

Tree limbs and debris: Hurricanes can wreak havoc on trees. When your workers are tending to downed trees or cleaning up debris, make sure they use caution. They can be injured by chainsaws and chippers or struck by falling limbs. They can also be electrocuted if the tree limbs come in contact with power lines. Before starting cleanup, see if the utility company can de-energize the area. Mark the danger zone, and remind all workers to stay alert. They must wear hard hats, work gloves and boots and protective face and eye protection. Make sure they keep their distance from chippers and never reach inside one.

Fall risks: During cleanup, workers may be on ladders, roofs and aerial lifts, and surfaces can be slippery or uneven. Ensure workers wear safety harnesses when they are on lifts and follow basic ladder safety at all times. Falls can lead to injuries and fatalities.

Portable generators: Many homes and businesses rely on generators, but they can be hazardous. If they are improperly fueled, they can start fires. They can also cause shock, electrocution and carbon monoxide poisoning. Never operate generators in an enclosed space, such as a home, office or garage. Ensure that they are shut off before refueling and that all electrical cords are in good condition.

Standard construction risks: Workers can encounter many dangers when repairing damaged structures. For instance, they may be exposed to asbestos when tearing down a building. They can also be trapped in confined spaces and be injured when lifting construction materials. In addition, they can suffer injuries from trenching and excavation accidents. Therefore, ensure they wear the appropriate personal protective gear and do not enter confined spaces without the applicable permit. Furthermore, ensure that everyone is trained in trenching safety and proper lifting skills.

Work-zone hazards: In the aftermath of a storm, working conditions can be dark and wet. It is easy for workers to be struck by moving vehicles. So be certain that everyone wears high-visibility clothing and uses proper traffic lighting and controls, such as barriers and cones.