Los Angeles runs record cargo while New York's truck queue grows

The Port of Los Angeles just posted its second-busiest July ever, 960,464 containers moved in a single month, and yet almost no ship is waiting outside it. The Marine Exchange counted one vessel at anchor off Los Angeles and Long Beach in the week of August 17 (The Dwell, citing MARAD, Aug 18). Meanwhile the drayage-window congestion measure around New York and New Jersey reads 2.37, against 2.19 for the San Pedro Bay complex, meaning a trucker planning a pickup window there must block out well over double the free-flow time (FHWA via The Dwell, June 2026). The busiest ports in America have swapped problems, and nobody ordered the swap.

Start with the trigger. Temporary 10 percent global tariffs that took effect in February expired on July 23; a day later, a new round of Section 301 tariffs of 10 to 12.5 percent landed on 60 economies covering most of what America imports (gCaptain, Aug 18). Importers did what importers now always do: they moved early. Retailers pulled merchandise forward ahead of the late-July tariff switch, which is why the peak season peaked in June, when Los Angeles alone moved more than a million containers (gCaptain, Aug 18). Gene Seroka, the port's executive director, called it businesses moving cargo whenever a window opens in an evolving trade environment (gCaptain, Aug 18).

Underneath the trigger sits the slow pressure: two years of tariff roulette have taught every importer in the country that the calendar is a weapon. The National Retail Federation's tracking with Hackett Associates now projects imports at major US ports at 2.21 million containers for July, down 7.6 percent from last year, and 2.22 million for August, down 4.2 percent, before a steeper fall through autumn (gCaptain, Aug 18). Volume is falling even as the rush to beat deadlines keeps distorting when the boxes arrive. The season no longer has a season.

The Port of New York and New Jersey sits on the other side of that distortion. It moved 4.43 million containers in the first half of 2026, flat with last year, but June alone jumped 11.9 percent to 769,422 containers, with loaded boxes up 7.6 percent (Container News, Aug 3). The Port Authority itself credited an earlier, front-loaded peak season shaped by trade policy. So the East Coast gateway is absorbing the late wave of the same pull-forward that Los Angeles has already finished digesting.

Name the actors and what each wants. Seroka's port wants throughput without congestion, because congestion in 2021 cost it cargo for half a decade of reputational damage, and its terminals now hold vessel waits near one day even at record volume (ShipUniverse, Aug 19). The Port Authority across the Hudson wants the cargo back it lost when shippers fled West Coast labor risk, and it is winning it: its gateway was the second-busiest in America for loaded containers in June (Container News, Aug 3). The ocean carriers want the Panama Canal and Red Sea routings that favor East Coast all-water services to keep paying, and the importers, Walmart and Target and every mid-size retailer behind them, want boxes landed before the next tariff letter arrives. Each is rational. Together they have built a traffic jam on one coast and a victory lap on the other.

The history that fits is 2022, and it fits almost exactly backwards. That year the queues migrated the other way: after the great Los Angeles anchorage backup of 2021, cargo shifted east, and by spring 2022 more ships waited off New York and Savannah than off San Pedro Bay, with East and Gulf ports outgrowing the West Coast for thirteen straight months (Sourcing Journal, citing John McCown's port report, 2022). New York learned then that a queue, once it starts, feeds itself: trucks stack, chassis scatter, containers pile on terminals, and the yard chokes before the water does. The truck index at 2.37 is that same early warning light, two years later, pointing the other direction.

The counter-example argues the other way, and it deserves its say. This is not 2021. America has more terminal capacity, the railroads have rebalanced equipment, and the total volume is actually falling, not rising: national imports are down year over year (gCaptain, Aug 18). A queue built on a one-time tariff deadline should clear by October, not compound. If the region's truck index rolls over in September, the whole congestion story was a head fake, and the honest read is that both coasts are simply running hot and cold on the same shrinking pie.

If the queue does compound, though, walk who pays. First, the truckers and warehouse operators around Port Newark eat the idle hours, since a 2.37 planning index means drivers burn a working day to fetch a box. Second, the importers pay in storage and in missed shelves, because a container stuck a week in Elizabeth, New Jersey is a holiday order that misses its store. Third, the carriers profit, at least at first: Drewry's World Container Index put a 40-foot box at 4,297 dollars on August 6, up 77 percent from a year earlier (Drewry World Container Index, Aug 6). Rate spikes reward whoever holds capacity while the boxes wait, and that is the shipping lines, not the shops whose goods sit in the yard.

Then comes the consequence that matters for the map. Every congestion scare since 2021 has pushed a slice of cargo toward whichever coast proved it could flow. Los Angeles is now making that case with data: record July volume, a one-ship queue, and a public promise it can absorb more if routes shift (ShipUniverse, Aug 19). New York is making the opposite case by accident. Shippers watching the truck index do not read port authority press releases; they read their own drayage invoices, and invoices move cargo.

What confirms this read: the Port Authority's July loaded import count, due in mid-September, coming in above June's pace while the truck planning-time index climbs past 2.4, and the Marine Exchange queue off the Kill van Kull growing past a handful of vessels. What breaks it: the index falling back toward 2.0 by October with the queue empty, which would mean the East Coast absorbed the pull-forward cleanly and the whole story was timing, not strain.

The judgment this earns: America did not fix its port congestion problem after 2021, it taught one coast to hide it. The boxes have not stopped racing the tariff calendar; they have just changed where they pile up. Los Angeles spent five years buying back its reputation in concrete, cranes and appointment systems, and its rival across the country is now holding the bag the old way, one idle trucker and one stuck container at a time. The queue always goes somewhere. This year it goes where the contracts went.