Truck Capacity Crisis Pushes Freight Costs Up 28% Despite Falling Volumes

The U.S. trucking market has entered a new phase of dysfunction: shippers are simultaneously experiencing shrinking freight volumes and sharply rising per-unit transportation costs. According to the U.S. Bank Freight Payment Index for Q2 2026, national shipment volumes declined 2.8% year-over-year while total spending climbed 28.1%, a combination that represents negative operating leverage for logistics teams nationwide. This reversal follows three years of freight recession that favored shippers with cheap capacity. The root cause is structural capacity contraction rather than fuel volatility.

While diesel costs surged 78.6% year-over-year to 75 cents per mile, industry economists attribute the majority of cost increases to tightening truck supply. Three years of weak rates and rising operating costs have pushed smaller and mid-sized fleets out of the market. Simultaneously, regulatory enforcement around driver qualifications and non-domiciled commercial licenses has further constrained available capacity. Spot rates have now converged with contract rates, a leading indicator that the pain for shippers is just beginning, as contract rate adjustments typically lag spot market movements by one billing cycle. The Southwest region exemplifies the crisis, where shipments fell 20.2% year-over-year while spending jumped 39.9%.

This divergence reflects both weakening demand (housing starts down 14.4% regionally) and reduced cross-border carrier availability following B-1 visa enforcement actions by U.S. authorities. For supply chain professionals, this data signals that traditional rate negotiation strategies may prove ineffective in a structurally tight market. The focus must shift to carrier relationship management, shipment consolidation, and mode diversification to absorb the new cost environment.