The Panama Canal Authority is rationing global trade by auction.
I know what rationing looks like from the shop floor in Adams County. Three customers need the same carburetor gasket and one distributor has it. The part does not become more valuable because the steel improved. It becomes valuable because somebody got to control the door. The canal is doing that now, with the whole shipping economy standing outside.
The authority is cutting daily vessel transits to an average of 29.5 starting in October, down from 36 in August and 32 in September. The canal handles 5 percent of global maritime trade and roughly 40 percent of United States container traffic. Its locks lift vessels 26 meters from sea level to Lake Gatun and back, and every transit burns freshwater from the watershed. This year, the watershed is drying up under an El Niño forecast to be the strongest in four decades.
In August, when the average wait reached 10 days, a container ship reportedly paid about $4 million to jump the queue. That is not merely a shipping surcharge. It is a market-clearing price for access to infrastructure that used to function as public utility.
This is not weather. This is what public infrastructure becomes when capacity contracts and demand does not.
The 2023 episode cut daily transits from 38 to 22 and produced the same bottleneck, the same scramble for alternatives, and the same lessons-learned press cycle. None of those lessons stuck. The auction is still here. The queue is still here. The next drought is already on the calendar. The new canal administrator, Espino de Marotta, inherited a waterway caught between drought and the geopolitics reshaping every trade corridor the canal serves.
All of that sits 3,400 miles from Adams County, Wisconsin. It does not stay there.
When you cut canal capacity by a fifth, you squeeze the arteries that move anhydrous ammonia from Gulf Coast plants to Midwest retailers. Anhydrous is the nitrogen that goes on corn before planting. It moves by rail and barge through corridors that feed from the same port infrastructure the canal services. The seasonal window is tight. The locks on the 82-kilometer canal are not an abstraction for a Rome dairy farmer watching his co-op bill. When the 2023 bottleneck hit, fertilizer shipments stacked up, Gulf Coast anhydrous prices spiked, and the cost rolled through to Adams County feed suppliers within weeks. That $4 million queue-jump premium does not stay in Panama. It gets priced into the next invoice for the next anhydrous delivery to the next co-op pump station on Highway 13.
The soybeans tell the same story from the other end of the ledger. Adams County soybeans travel sixty miles to an elevator and then south by rail or truck to Gulf ports — New Orleans, Houston — before they reach Asian buyers. Every bushel that moves through the canal picks up whatever the canal charges. When that charge includes an auction premium and a 10-day wait, the export bid at the local elevator drops by exactly that margin. The elevator operator pays the bid differential and the freight, and the squeeze lands on the farm-gate price. El Niño is expected to peak later this year, and the UN is warning the pattern could persist into 2027. If the canal holds at 29.5 transits a day through that period, the $4 million premiums do not go away. They become permanent infrastructure — the shipping world’s version of what happened to propane scheduling after the 2021 freeze, where every available truck and trailer got reassigned to higher-margin work and rural customers ended up at the back of the dispatch line.
The pressure on the canal comes on top of broader disruption to global shipping routes. The U.S.-Israel war on Iran and its disruption to the Strait of Hormuz has added costs and complexity to the other half of the Asia-to-United States route the canal was built to serve. Strong El Niño conditions are simultaneously disrupting global commodity and shipping markets. When both chokepoints squeeze at once, the alternatives are not simply find another route. They are absorb the cost or do without.
Adams County knows this arithmetic. The Adams-Columbia Electric Cooperative members know it. The dairy farmers on Rome Road know it. The feed supplier on the south side of town knows it. Every household in the county that burns propane, spreads nitrogen, or sells a bushel at the elevator is attached by supply chain to an 82-kilometer canal in a tropical isthmus, and the attachment is not optional.
The canal’s flat-fee reservation system now carries a second system on top of it: a daily auction for scarce transit slots. The flat fee does not rise. The auction price does. That is not a shipping problem. That is a public-goods problem. The canal was built as shared infrastructure, the way Adams County built its roads and its co-ops and its electric grid — to move what the community needed at a cost the community could plan around. When you auction the slots on a county road, you have not created efficiency. You have created a toll gate with a moving price, and the people who can least afford the premium pay it through higher invoices and lower bids. The Adams-Columbia Electric Cooperative exists because a century ago somebody decided that rural electrification should not be priced by what the market would bear. The canal is now being priced by exactly that.
The drought will pass. Lake Gatun will refill. The canal will return to fuller capacity. What will not return is the assumption that this single waterway is automatically the cheapest and safest way to move a container — or a bushel of soybeans, or a shipment of anhydrous ammonia — from one side of the world to the other. That assumption died in the Lake Gatun watershed, and every dollar now chasing a $4 million slot is writing its eulogy.
The drought is bad news for the canal. It is the best possible news for everyone who builds differently after it. That includes the co-op, the feed supplier, the elevator, and every Adams County farm that has learned — from drought, from freeze, from consolidated supply chains and vanished hardware stores — that dependence on a single chokepoint is a risk the chokepoint owner does not carry. The owner collects the auction. The farmer pays the premium. The column has been saying that for a long time. The canal just proved it in water.