Spliethoff opened the Great Lakes' first scheduled container line as ports jammed

The shortest route from Asia to the US runs through the West Coast ports — which in 2021 were a pileup. Some ships started taking the long way: through the Panama Canal, up the East Coast, through eastern Canada and into the Great Lakes. One was the Happy Rover, a container ship that made the trip in November 2021, met on the shores of Lake Erie by Klaus Sorenson of the Dutch shipping company Spliethoff.

The Happy Rover looks huge — bigger than a football field — yet next to an ocean container ship it is nothing. That is by necessity: the canals and locks of the Great Lakes were built before containerization took off in the 1960s, so while container ships worldwide grew bigger and bigger, the lakes' canals stayed the same size. Standardized containers and their economies of scale simply skipped the Great Lakes — until, Sorenson says, now.

The economics are blunt: 'If rates are low, it makes no sense. If rates are high, then you can find a way for it to make sense.' In 2021, Spliethoff ran the Great Lakes' first dedicated, regularly scheduled container ship route, from Antwerp, Belgium to Cleveland — notable because the distance from Antwerp to Baltimore and from Antwerp to Cleveland is within a hundred miles of each other. Of the roughly a trillion dollars in annual US–EU trade, some could shift to the lakes.

The limits are equally real: winter ice closes the shipping lanes for months every year, so Sorenson tells customers to plan ahead and ship more than they think they need early in the season. Even enthusiasts concede the lakes could handle only a tiny fraction of what East Coast ports handle — the play is Europe, not Asia.

Congestion at the dominant ports repriced every alternative, and a route that had been uneconomic at normal rates cleared the bar at spiked ones.

The distance penalty is small on the Europe leg: Antwerp to Cleveland is within a hundred miles of Antwerp to Baltimore, so the lakes route reaches the interior without the inland trucking leg.

Smaller ships, a weakness against ocean containers, are exactly what the pre-1960s locks accept — the constraint became the fit.

Committing to a dedicated, regularly scheduled rotation converted a one-off opportunistic voyage into a product customers could plan around.

Capacity that looks obsolete is an option: the route a technology wave skipped repriced into viability the moment the alternative's cost spiked.

The Antwerp–Cleveland line ran as the Great Lakes' first dedicated scheduled container service through the 2021 season, with the seasonal winter closure managed by shipping early. The route remains a niche: lakes enthusiasts themselves note these ports can never rival the coasts, but roughly a trillion dollars of annual US–EU trade gives the niche room to grow.