US Port Congestion Risk Rises as Carriers Expand Service Frequency

Ocean carriers are increasing service frequency to US ports, a move that paradoxically raises the specter of renewed congestion and operational strain on port infrastructure. This expansion appears driven by demand recovery and competitive positioning, yet it threatens to overwhelm already-stressed terminal capacity and dwell times at major gateways. For supply chain professionals, this scenario presents a critical juncture: while additional capacity appears beneficial, the infrastructure bottlenecks remain unresolved, potentially creating worse congestion than pre-expansion baseline conditions.

The pattern reflects a familiar supply chain dynamic—carriers responding to market signals without sufficient coordination with port authorities and terminal operators. Historical precedent from 2021–2022 demonstrates how unmanaged capacity surges can cascade into demurrage charges, extended dwell times, and container repositioning costs that ultimately transfer to shippers. The current situation differs only in timing and scale, yet the underlying structural issue persists: port infrastructure development has not kept pace with container volume growth or vessel megamaxification trends.

Supply chain teams must actively monitor terminal congestion metrics, renegotiate service agreements with contingency language, and consider port diversification strategies to mitigate single-point failures. Predictive modeling of port queue times should become standard practice rather than reactive measure, enabling proactive allocation of container inventory and reducing exposure to surge pricing.