Do not drive over downed power lines under any circumstances
A downed power line on the road is a live electrical hazard, even if it looks harmless or isn't sparking. The ground around it can carry a lethal charge. Your vehicle's tires provide no protection — electricity travels through metal, rubber, and wet pavement equally well. If you drive over a downed line, you risk electrocution, fire, or both. The safest choice is always to turn around and find another route.
Power lines fall during storms, accidents, and high winds. They can land on roads, parking lots, and driveways. A line that appears dead may still be energized. You cannot tell by looking whether a line is live, and utility companies cannot always tell remotely either — they have to send a crew to cut power to the circuit before it is safe to touch or drive over.
Key Takeaways
- Downed power lines carry lethal voltage even when they are not sparking or moving, and your vehicle's tires do not insulate you from that charge.
- If you hit a downed line with your car, stay inside the vehicle with the doors closed and windows up until utility workers arrive — do not step out onto the ground.
- Call 911 when ready when you see a downed line blocking the road, and report the location as precisely as you can so crews can close the road and cut power.
- If you must leave your vehicle because of fire or when ready danger, jump clear of the car and the line with both feet together, then shuffle away without lifting your feet.
- Turn around and use a different route rather than waiting for the line to be cleared — utility response times vary, and you may wait hours.
Why a downed line is dangerous even if it looks dead
Electricity does not require a visible spark or movement to kill. A downed line can carry 4,000 to 35,000 volts depending on whether it is a primary distribution line or a secondary service line. That voltage is present whether the line is actively arcing or lying still on the pavement. The ground itself becomes energized in a circle around the point where the line touches down — this is called a step potential. If you drive over the line, your vehicle becomes part of that electrical circuit.
Utility companies de-energize lines remotely when they can, but they cannot always do it when ready. A crew has to locate the break, identify which circuit it is on, and cut power from the substation. Until that happens, the line is live. Even after power is cut, utility workers still treat every downed line as energized until they have personally verified it with testing equipment — that is the safety standard across the industry.
Wet pavement, metal vehicle frames, and conductive ground all make the hazard worse. Rain, snow, or standing water increases conductivity. Your car's metal body is an excellent conductor. The moment your tires touch the line, current can flow through the vehicle frame to the ground and back through the line, or it can arc from the line to your car as you approach.
What to do if you drive over a downed line
If your vehicle makes contact with a downed power line, your first action is to stay inside the car. Keep the doors closed and windows up. Turn off the engine if you can do so without leaving the vehicle. Do not touch the steering wheel, gear shift, or any metal part of the interior if you feel a tingling sensation — that means current is flowing through the vehicle.
Call 911 when ready and tell the dispatcher that you have hit a power line. Give your exact location — use landmarks, street names, or mile markers if you are on a highway. Tell them whether you see sparks, smoke, or fire. The dispatcher will contact the utility company and emergency services. Do not hang up until the dispatcher tells you to.
Wait for emergency responders to arrive. Utility workers will cut power to the line before anyone approaches your vehicle. This can take 20 minutes to over an hour depending on how far away the nearest crew is and how busy they are. Stay calm and stay inside.
If your vehicle catches fire or you are in when ready danger, you must leave the car. When you exit, jump clear of the vehicle and the downed line with both feet together — do not step out one foot at a time. Once you are clear, shuffle away from the car and the line without lifting your feet off the ground. Shuffling keeps you from creating a step potential that could electrocute you. Move at least 35 feet away and wait for emergency workers.
How to recognize a downed power line
A downed power line usually appears as a thick black or gray cable lying across the road, sometimes attached to a wooden or metal pole that has fallen with it. It may be coiled, tangled, or partially buried under debris. During or after a storm, look for lines draped over trees, vehicles, or structures near the road.
Not all downed lines are obvious. A line may be hidden under leaves, snow, or standing water. It may be partially buried in mud or sand. If you see a pole down or a section of road that looks damaged after a storm, assume there is a downed line even if you cannot see it clearly. If you are unsure, treat any cable or wire on the road as a potential power line.
Downed lines sometimes spark or arc, especially if they are moving in the wind or if metal is nearby. But the absence of sparks does not mean the line is safe. Many downed lines never spark at all — they straightforward lie on the ground carrying voltage silently.
Reporting a downed power line to authorities
Call 911 if you see a downed power line blocking a road or lying in a public area. Give the dispatcher the street address or intersection, the direction the line is facing, and whether it is blocking traffic. Tell them if you see any vehicles near the line or if traffic is backing up.
The dispatcher will contact your local utility company — usually the same company that provides electricity to homes in that area. In most places, the utility company is responsible for clearing lines from public roads. They will send a crew to de-energize the line and remove it or move it out of the way.
If the line is on private property — in a driveway, parking lot, or yard — call 911 anyway. The utility company still needs to de-energize it, and they may need to access private property to do so. Do not attempt to move the line yourself or ask the property owner to move it. Treat it as a utility company responsibility.
Why you should not wait for the line to be cleared
Utility response times vary widely. In urban areas with multiple crews, a downed line blocking a major road might be cleared in 30 to 45 minutes. In rural areas, the nearest crew might be an hour or more away. If the line is on a secondary road or in a less populated area, you could wait two to three hours or longer.
During storms, utility companies receive dozens or hundreds of reports at once. Crews prioritize based on the number of people affected, whether the line is blocking a major road, and whether there is when ready danger. A line blocking a residential street might not be first in the queue.
Rather than waiting, turn around and use an alternate route. Use a GPS app or ask locals for a detour. The time you save by routing around the hazard is almost always less than the time you would spend waiting for the line to be cleared. You also remove yourself from the danger zone entirely.
Frequently Asked Questions
Can I drive around a downed power line if I stay far to the side?
No. The electrical field around a downed line extends beyond what you can see, and driving around it risks hitting the line or the energized ground. The safest choice is to turn around completely and use a different route, even if it adds time to your trip.
What if the line is clearly not touching the ground?
Treat it as live regardless. A line draped over a tree, vehicle, or structure is still energized and still dangerous. Do not touch it, drive under it, or assume it is safe because it is elevated. Call 911 and wait for utility workers.
Is it safe to drive over a power line if my car is rubber-lined or insulated?
No. Tires are not insulators — they conduct electricity, especially when wet. No vehicle modification makes it safe to drive over a live power line. The only safe action is to avoid it entirely.
What should I tell my passengers if we hit a downed line?
Tell them to stay in the vehicle, keep doors and windows closed, and remain calm. Explain that you have called 911 and that emergency workers will handle the situation. If you must evacuate due to fire, remind them to jump clear with both feet together and shuffle away without lifting their feet.
Can I move a downed power line out of the road myself?
Never. Do not touch a downed power line with anything — not a stick, not a rope, not a vehicle. Electricity can travel through conductive materials. Only utility workers with proper equipment and training should handle downed lines. Call 911 and let them manage it.