Admiralty jurisdiction has a remarkably long arm, and if you don’t recognize it early, you may find yourself litigating under the wrong legal framework entirely. When most people hear “maritime law,” they picture cargo ships, oil tankers, and the open ocean, not a train derailment in rural Alabama, a floating casino on the Mississippi River, a pontoon boat accident on a lake in Kentucky, or a zip line in Honduras.
For companies, insurers, and the attorneys who advise them, the consequences of missing maritime jurisdiction are serious. Different statutes of limitations. Different remedies. Different procedural rules. And in some cases, an entirely different court system. The plaintiff’s maritime attorney on the other side of the table will know all of this. The question is whether you will, too.
What follows are four real-world scenarios where admiralty jurisdiction shows up in places most people would never expect, and what that means for the companies and professionals who need to see it coming.
I. Intermodal Cargo Damage and Admiralty Jurisdiction
Why a Train Wreck Can Trigger Maritime Law for Shippers, Logistics Providers, Freight Forwarders, and Insurers
The U.S. Supreme Court once opened an opinion with a line that could serve as the thesis of this entire article: “This is a maritime case about a train wreck.”
The case involved cargo shipped from Australia to a final destination in the interior of Alabama. The goods traveled by ocean, then transferred to an inland rail carrier for the last leg of the journey. When the train derailed and the cargo was destroyed, the question was whether federal maritime law, not state tort law, governed the dispute.
The Supreme Court said yes. The test, the Court explained, is “conceptual rather than spatial.” If the cargo traveled under a bill of lading that called for substantial carriage by sea, the contract’s purpose is to effectuate maritime commerce, and the entire journey, including the inland portion, falls under admiralty jurisdiction. The character of the contract as maritime is not defeated simply because it also provides for some land carriage.
For shipping companies, logistics providers, freight forwarders, and their insurers, the implications are significant. If your customer’s goods were damaged during an inland leg of a journey that originated under an ocean bill of lading, you may be facing admiralty jurisdiction with all the federal maritime law that comes with it, regardless of where the physical damage occurred. The liability limitations in the bill of lading, the applicable law, and the available defenses may all be governed by a legal framework you didn’t anticipate.
The takeaway for defense counsel: when cargo damage occurs during intermodal transport, the first question isn’t where the damage happened. It’s what contract governed the shipment, and whether that contract had a substantial ocean leg.
II. Is Your Floating Casino or Dockside Venue a “Vessel?”
Jones Act Implications for Owners, Operators, and Insurers
Here’s a paradox that courts have been wrestling with for decades: A company builds its entire business model around being classified as a vessel. It operates a riverboat casino on navigable waters because state law requires gambling to occur on a boat rather than on land. It holds a Coast Guard certificate of inspection. It employs a captain and crew. It is, for every regulatory and commercial purpose, a boat.
Then a worker gets hurt, or a patron slips and falls. And suddenly, the casino’s first defense is: We’re not really a vessel.
The argument goes like this: the casino has been permanently moored to the dock since the state legislature eliminated the cruising requirement. It receives power, water, sewer, and communications from shore-side sources. It hasn’t navigated in years. It serves no transportation function. Therefore, it’s not a “vessel in navigation” for purposes of the Jones Act or general maritime law, and the injured party’s claims should be dismissed.
Courts have gone both ways on this. Federal appellate courts have held that dockside casinos moored indefinitely, with no transportation function, are not vessels, even if they were originally built as cruising riverboats and sailed for years before the law changed. The reasoning is straightforward: once the craft was withdrawn from navigation so that transporting passengers or cargo was no longer part of its business, it lost its vessel status.
But other courts, including the Eleventh Circuit, have found that a riverboat casino is a vessel where it maintained functioning machinery, was capable of moving under its own power, kept a captain and crew aboard, and had its engines and equipment in working order. The Supreme Court has acknowledged the tension, noting that a watercraft is not capable of being used for maritime transport “if it has been permanently moored or otherwise rendered practically incapable of transportation or movement,” but also recognizing that the line between “permanently” and “indefinitely” moored is far from clear.
For vessel owners, operators, and their insurers, this is not an academic question. The legal classification that enables the business to be a “boat” for gambling law purposes is the same classification that creates maritime exposure. If you’re operating a floating entertainment venue, a docked casino, or any commercial operation on a structure that floats on navigable waters, you need to understand where the courts in your jurisdiction have drawn this line. The answer determines whether your workers have Jones Act and Longshore and Harbor Workers’ Compensation Act claims, whether your patrons can invoke admiralty remedies, and whether your entire liability framework shifts from state law to federal maritime law.
III. The Navigability Trap
What Marina Operators, Rental Companies, Tour Companies, and Insurers Need to Know to Protect Their Businesses
Most people think of lakes as purely local. State parks. Summer vacations. Bass fishing. Federal admiralty jurisdiction doesn’t enter the picture. You may be wrong. Whether a lake qualifies as “navigable waters of the United States” for admiralty purposes depends on a test that can produce surprising results.
The foundational rule comes from the Supreme Court: a body of water is navigable if it is used, or is susceptible of being used, in its ordinary condition, as a highway for interstate or foreign commerce. The keyword is susceptible. The water doesn’t have to be carrying commercial traffic at the moment. It just has to be capable of doing so.
This is where geography matters enormously. A lake that straddles the border of two states, like a reservoir sitting across the Kentucky-Tennessee line, clearly meets the interstate commerce requirement. Federal courts have held that such a lake is navigable for admiralty purposes precisely because it lies in two different states, regardless of whether commercial vessels actually use it. Even a lockless dam that prevents downstream travel doesn’t negate navigability when the lake itself crosses state lines.
Conversely, a lake located entirely within one state, created for flood control and recreation, and blocked by a dam from connecting to any navigable waterway, is almost certainly not navigable for admiralty purposes. Federal courts have dismissed admiralty claims arising on such lakes, finding that they cannot form a “continued highway for interstate or foreign commerce.”
The middle ground is where it gets interesting. A lake that connects to a navigable river, even seasonally, even through a modest drainage canal, may qualify. Federal courts have found admiralty jurisdiction over torts occurring on lakes that enjoy periodic access to interstate waterways during commercially significant periods. The analysis is intensely fact-specific: the size of the connection, the duration of access, and the history of commercial use all matter.
Navigability, however, is only the first question. For admiralty jurisdiction over a tort on the water, federal courts also require that the incident bear a sufficient connection to maritime activity. The Supreme Court has held that this “connection test” asks two things: whether the incident had a potentially disruptive impact on maritime commerce, and whether the general character of the activity giving rise to the incident bore a substantial relationship to traditional maritime activity. In practice, most boating accidents on navigable waters will satisfy this standard, but it is not automatic. A court will look at the nature of the activity, not just the location, before exercising admiralty jurisdiction.
For marina operators, watercraft rental companies, tour operators, and their insurers on border lakes or lakes connected to navigable waterways, this means a “simple” state tort claim arising from a boating accident might actually be an admiralty case with different remedies, different limitations periods, and different procedural rules.
And here’s a wrinkle that catches many attorneys off guard: even when a claim is maritime, it doesn’t necessarily have to be filed in federal court. Under the “saving to suitors” clause, a provision of federal law that has existed since the earliest days of the Republic, a maritime claimant may bring an in personam claim in state court, applying federal maritime substantive law while benefiting from state procedural rules, including the right to a jury trial. The Supreme Court has confirmed that this clause protects a maritime claimant’s right to pursue relief in state court rather than being confined to federal admiralty proceedings. State courts entertaining these claims are bound by what is sometimes called the “reverse-Erie” doctrine: they must apply federal maritime substantive law, even though the case proceeds under state procedural rules.
What this means in practice is that a defense attorney might be served with what appears to be an ordinary state-court negligence complaint arising from a lake accident and not realize, until it is too late, that federal maritime substantive law governs the claim. The elements of negligence, the standards of care, and the available defenses may differ from those provided by state tort law. Recognizing the maritime character of the claim early is essential to mounting an effective defense.
IV. Shore Excursion Claims Under General Maritime Law
What Cruise Lines, Excursion Operators, and Insurers Must Know
A passenger books a cruise. The ship docks at a foreign port. The passenger purchases a shore excursion through the cruise line’s onboard excursion desk: a zip line tour, a snorkeling trip, or an ATV adventure. The excursion is marketed in the cruise line’s brochure, sold through the cruise line’s system, and charged to the passenger’s onboard account. Then something goes wrong, and the passenger is injured on land, many miles from the ship.
The first instinct of most attorneys outside maritime practice is to treat this as a standard premises liability or negligence case governed by the law of whatever country the injury occurred in. But federal courts, particularly in the Eleventh Circuit, where most cruise litigation is concentrated, have consistently held that admiralty jurisdiction can extend to these shore-based injuries.
The legal theories are well-developed. Cruise lines owe their passengers a duty to exercise reasonable care under the circumstances, which includes a duty to warn of known dangers at places where passengers are invited or reasonably expected to visit. This duty extends beyond the gangway. If the cruise line knew or should have known about dangerous conditions at a shore excursion site and failed to warn passengers, it may be liable under federal maritime law, not the local law of the foreign port.
The excursion operator’s status as an independent contractor is the cruise line’s primary defense, and cruise lines take extensive steps to establish that separation: contractual disclaimers in the ticket, on the excursion booking, and in the operator’s own liability waiver. Federal courts have scrutinized these disclaimers carefully. Where the cruise line sold the excursion, marketed it with its own branding, charged passengers directly, and retained the right to terminate the operator, courts have examined whether the relationship rises to the level of actual or apparent agency, even when the contract says otherwise.
For cruise lines, excursion operators, and their insurers, the defense calculus requires early identification of the maritime framework. The standard of care, the available defenses, the statute of limitations (often one year, with mandatory notice requirements buried in the ticket contract), and the applicable forum are all governed by admiralty law. A defense strategy built on state tort principles may be fundamentally misaligned with the legal framework that actually applies.
Why This Matters
The common thread in every scenario above is the same: admiralty jurisdiction follows the nature of the activity and the character of the legal relationship, not the geography of the injury. A train wreck in Alabama. A slip-and-fall on a docked casino. A boating accident on a border lake. A zip line injury in Central America. None of these looks like a maritime case at first glance. All of them can be.
When maritime jurisdiction applies, and no one recognizes it, the consequences compound. The substantive law governing the claim may establish different standards of care, defenses, and damage calculations than the state-law framework everyone assumed governed the case. The applicable statute of limitations may be shorter or longer than the one defense counsel was tracking. A claim filed in state court may be governed by federal maritime law under the “saving to suitors” clause, and a defense strategy built on state tort principles may be fundamentally misaligned with the applicable legal framework. These are not hypothetical risks; they are the kinds of errors that reshape outcomes.
The smart move, for companies, insurers, and counsel alike, is to identify the exposure before the complaint arrives. If any of these scenarios sound familiar, it may be time to consult with maritime defense counsel who can evaluate the jurisdictional landscape and ensure your defense strategy is built on the right legal foundation.
Disclaimer: This article is provided for general informational and educational purposes only and does not constitute legal advice. Reading this article does not create an attorney-client relationship with Parlatore Law Group. The legal principles discussed herein are based primarily on federal law and United States Supreme Court precedent; state laws and procedures may vary significantly. If you are facing a potential maritime claim or have been served with a complaint that may implicate admiralty jurisdiction, contact qualified maritime counsel promptly, as applicable statutes of limitations and notice requirements may be shorter than those under state law.