Most people who spend time around Florida’s marinas and docks never think twice about the electrical systems running beneath and alongside the water. That can be a fatal mistake. Faulty dock wiring, improperly grounded shore power connections, and defective marina electrical equipment can turn the water around a dock into an invisible death trap. The phenomenon is called electric shock drowning, or ESD, and it claims lives every year—often without anyone realizing what happened.
Mase Seitz Briggs has fought for seriously injured maritime accident victims in Miami and throughout South Florida since 1997. If you or a loved one was injured by an electrical hazard at a marina or dock, call us at (305) 377-3770 for a free consultation.
What Is Electric Shock Drowning?
Electric shock drowning happens when alternating current (AC) leaks into the water around a dock, marina, or vessel connected to shore power. According to the Electric Shock Drowning Prevention Association, low-level AC current passing through a swimmer’s body causes muscle paralysis. The swimmer cannot keep themselves afloat, and they drown. Higher levels of current can cause outright electrocution.
What makes ESD so dangerous is that it is completely invisible. Water can look and feel safe, then become electrified the moment something on a nearby boat or dock energizes the water. Unless someone witnesses the event and reports the sensation of shock, the death is usually labeled a common drowning. Most ESD victims show no signs of electrical injury at autopsy, and investigators often never learn the true cause. The actual number of ESD deaths each year is believed to be far higher than reported.
According to the Electrical Safety Foundation International and ESDPA, as little as 10 to 15 milliamps of current—roughly 1/50th the amount used by a 60-watt light bulb—is enough to cause paralysis and drowning. ESD occurs most often in fresh water. Saltwater conducts current away from a swimmer’s body; fresh water does not. Florida’s inland canals, freshwater marinas, and brackish waterways carry the highest risk.
Common Causes
Most ESD cases trace back to improper electrical connections on boats and docks. Federal and state codes require ground-fault protection near water to break the circuit if any stray current fails to return to its source. When those protections are missing, defective, or never installed, current can leak into the water. Other causes include corroded or improperly installed dock wiring, shore power pedestals with defective protection, boats with faulty onboard electrical systems, weatherproofing failures, lightning damage to insulation, and DIY work by people unfamiliar with marine electrical standards.
Warning Signs
Because energized water looks exactly like safe water, recognizing warning signs before entering matters:
- Tingling or numbing sensation in the water, especially near dock ladders or pilings
- Visible corrosion or damage to dock wiring, outlets, or power pedestals
- Breakers that trip repeatedly with no obvious mechanical cause
- Lights or equipment on the dock flickering or behaving erratically
- Fish or marine life behaving unusually near the dock
- Buzzing or humming from dock wiring or equipment
If you feel tingling in the water near a dock, get out by swimming away from the dock—not by climbing a ladder, which can complete the circuit through your body. Alert the marina operator to shut down shore power immediately.
Common Injuries
The severity of electrical injuries varies with current level, exposure time, and the victim’s physical condition. Common injuries include cardiac arrest, drowning or near-drowning, severe burns, neurological damage, including memory loss and chronic pain, respiratory failure, and lasting psychological trauma. In the most tragic cases, ESD takes the life of the victim before anyone on shore realizes what is happening.
What to Do If Someone Is Being Shocked
Every second counts:
- Shout to alert others and call 911.
- Do not enter the water. You will become a victim too.
- Throw a life ring, rope, or flotation device to the victim.
- Locate and shut off the shore power connection or breaker if it can be done safely from land.
- Once the victim is out of the water, begin CPR if they are unresponsive and not breathing.
- Get medical evaluation even if the victim seems to recover. Internal injuries and cardiac effects may not be immediately apparent.
- Preserve evidence with photographs of wiring, outlets, and power pedestals.
- Contact a maritime lawyer before speaking with marina management or their insurers.
Who May Be Liable
ESD cases can involve multiple liable parties depending on how the hazard developed. Potentially responsible parties include marina and dock owners, electricians and contractors who installed or maintained the system, manufacturers of defective power pedestals or wiring, and boat owners whose vessels leaked current into the water. Maritime law may also apply when the injury is connected to a vessel or occurred on navigable waters.
Why Other Attorneys Refer These Cases to Us
ESD and dock electrocution cases are among the most complex in maritime personal injury law. They require expert analysis of marina electrical systems, vessel wiring, code compliance history, and preservation of evidence that often disappears within days. Referring attorneys send these cases to us because they require attorneys who understand both Florida premises liability law and federal admiralty jurisdiction. We work cooperatively with referring attorneys under arrangements consistent with the Florida Rules of Professional Conduct.
Talk to Us
If you or a loved one was injured by an electrical hazard at a Florida marina or dock, or if you lost a family member to electric shock drowning, contact us at (305) 377-3770 for a free consultation. There is no fee unless we secure compensation.
Mase Seitz Briggs 2601 South Bayshore Drive, Suite 800 Miami, Florida 33133 (305) 377-3770
