Carrier focus on San Pedro Bay ports restricts shipper options
The Loadstar · Sep 29, 2026
While the port complex of Los Angeles and Long Beach has been processing record volumes through the summer, tonnages have slumped at the port of Oakland and the Northwest Seaport Alliance (NWSA) ports of Seattle and Tacoma. And for cargo owners, this means fewer options to navigate bottlenecks and disruption. The port of Long Beach clocked up a new record for August throughput, with a 2% year-on-year gain in its teu count, ...
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What this moves
Real friction: delays, added cost, or partial capacity loss.
Import surges land as chassis and drayage shortages before they show as vessel queues — the binding constraint is landside, not the water.
Check it yourself: Daily port calls & congestion (IMF PortWatch) · Port Performance Programme (UNCTAD)
Drayage demand in Southern California is highly concentrated, so gate congestion prices into the regional truckload market quickly.
Check it yourself: DAT Truckload Volume & Rate Indexes (DAT Freight & Analytics)
Transload volumes move onto Class I rail within days, so a West Coast surge becomes a Midwest intermodal problem shortly afterwards.
Check it yourself: Rail Traffic Data (weekly) (Association of American Railroads) · Railroad Performance Measures (Surface Transportation Board)
The corridor
Ports of Los Angeles & Long Beach
Domestic corridorUS West CoastThe San Pedro Bay complex is the largest container gateway in the United States and the primary landing point for transpacific imports. What happens on these two adjacent terminals sets the tempo for US inland freight two to three weeks later.
- Import surges land as chassis and drayage shortages before they show as vessel queues — the constraint is usually on the landside, not the water.
- Transload volumes move onto Class I rail within days, so a West Coast surge becomes a Chicago intermodal problem shortly afterwards.
- Labour negotiations, terminal automation disputes and truck-appointment policy changes all move throughput without changing a single vessel schedule.
- When the Panama Canal restricts transits, discretionary cargo shifts here, which is the main way a Central American drought becomes a US domestic trucking story.
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