Chokepoint
Panama Canal
The Atlantic to the Pacific
The Panama Canal links the Atlantic and Pacific oceans and is a lock canal, which makes it dependent on fresh water. Gatún Lake supplies the locks, and when rainfall is low the canal authority restricts the number of daily transits and the maximum draught of vessels. That makes this the one major chokepoint whose principal constraint is environmental rather than geopolitical.
What passes through it
- Asia–US East Coast container services
- US Gulf exports of grain, LNG and refined products
- Intra-Americas trade between the Pacific and Caribbean coasts
Typical disruption
- Drought reducing lake levels, leading to daily transit slot restrictions
- Draught restrictions forcing vessels to carry less cargo
- Auction prices for transit slots rising sharply when capacity is scarce
- Queues forming outside the canal on both sides
The alternative, and what it costs
Around Cape Horn, which can add up to roughly 20 days on affected routings, or a land bridge across the United States using rail. The land bridge is faster but limited by rail capacity and requires double handling.
What this means for your suppliers
Restrictions here arrive with more warning than at other chokepoints, because water levels fall gradually and the canal authority publishes slot allocations in advance. That makes it the most forecastable chokepoint on the map.
The cost often appears as freight rate rather than delay: carriers pay for slots and pass it on. A supplier quoting a sudden surcharge on a US East Coast routing is frequently a canal story.
If your goods move Asia to US East Coast, ask whether your carrier has booked slots or intends to bid for them. The answer determines whether your ETA is a plan or a hope.
Other chokepoints
The rest of the map
See it against your own lanes
We load a sample of your suppliers, run a live scenario, and show which orders would slip.