Soaring Fuel and Trucking Expenses Bog Down Big Four U.S. Railroads

Until recently, trucking remained the go-to choice for shippers balancing speed and cost. Surging fuel prices and tighter over-the-road capacity have now rerouted a wave of freight onto the rails, overwhelming the four largest U.S. railroad networks. The rapid shift is creating a bottleneck that slows train speeds and strains intermodal terminals across the country.

Rising Costs Shift Freight to Rail

The economics of freight movement are dramatically tilting toward rail. Diesel prices have risen sharply, pushing trucking rates higher and forcing logistics managers to reassess their transportation strategies. For long-haul moves—typically anything over 500 miles—the cost advantage of rail intermodal becomes impossible to ignore. A single double-stack train can carry the equivalent of 280 trucks, burning far less fuel per ton-mile and delivering significant savings when fuel surcharges mount.

Intermodal shipping, where containers or trailers are transferred seamlessly between truck and rail without handling the cargo itself, is the immediate beneficiary. Shippers are accelerating conversions from over-the-road to intermodal rail, especially for consumer goods, auto parts, and other freight that can tolerate slightly longer transit windows. The result is a volume surge that many rail observers had not anticipated at this scale.

Capacity Constraints on the Big Four

That surge is now testing the operational limits of the four largest U.S. Class I freight railroads: Union Pacific, BNSF Railway, CSX Transportation, and Norfolk Southern. Together, they handle roughly 90 percent of the nation’s intermodal rail volume. As their networks absorb more containers, yard dwell times increase, train speeds drop, and the fluidity that customers expect begins to erode.

Several factors contribute. Intermodal terminals in major logistics hubs—Chicago, Los Angeles, Dallas, and Atlanta—are operating near their design limits. The chassis pools that truckers use to move containers to and from rail yards are stretched thin. Labor shortages among drayage drivers complicate the last mile. All of this compounds the congestion already baked into a rail system that, under the precision scheduled railroading model, runs leaner and with less buffer for demand spikes.

Weather events and sporadic maintenance outages further complicate the picture. A single line disruption in a key corridor can back up trains for hundreds of miles, delaying cargo by days. Meanwhile, the railroads are reluctant to add significant new capacity quickly—capital projects for new sidings or terminal expansions require years of planning and regulatory approval.

The Intermodal Supply Chain Impact

For shippers, the slowdown translates into longer and less reliable transit times. A service that once reliably moved a container from Los Angeles to Chicago in seven days might now take nine or more. Retailers restocking inventory for peak seasons face the risk of late arrivals, forcing them to hold higher safety stock or switch to premium expedited services that erode the cost savings they sought from rail.

International intermodal traffic, driven by imports from Asia through West Coast ports, adds another layer. Containers discharged at ports like Los Angeles and Long Beach often move inland by rail. When rail velocity falters, ships can idle longer at anchor, container terminals fill up, and the entire port complex slows—a scenario reminiscent of the supply chain backlogs during the pandemic.

Railroad executives are acutely aware of the service challenges. In recent quarterly calls, they’ve acknowledged the volume influx and stressed that they are deploying additional locomotives, crews, and operational adjustments to maintain fluidity. However, they also caution that a rapid return to pre-surge transit times is unlikely without a corresponding easing of fuel or trucking market pressures.

What Shippers Should Monitor Next

Logistics managers and analysts will be watching the weekly rail traffic reports published by the Association of American Railroads. Key metrics include average train speed, terminal dwell time, and intermodal carloads. A sustained decline in velocity alongside rising volumes would confirm that congestion is deepening. Conversely, any plateau or drop in intermodal loads might signal that shippers are retreating back to trucks as railroads attempt to restore service through higher rates or stricter operations.

Diesel price trends remain the wild card. If fuel costs stabilize or decline, the economic incentive to shift freight to rail could moderate, giving railroads breathing room to clear backlogs. But with global energy markets still volatile, few predict a swift reversal. For now, the big four railroads are in a race to manage the volume wave without undermining the service reliability that attracts customers in the first place.

Why This Matters

The slowdown reveals the tight link between fuel markets and rail infrastructure. As diesel prices climb, shippers flock to rail for long-haul efficiency, but when Class I networks reach capacity, service delays ripple through supply chains, affecting delivery times and inventory costs across multiple industries.

FAQ

What is causing the intermodal rail volume surge?

Rising fuel costs and higher trucking rates are making rail a more cost-effective alternative for long-distance freight, prompting shippers to shift containers from trucks to trains.

Which railroads are most affected?

The slowdown is hitting the four largest U.S. Class I freight railroads: Union Pacific, BNSF Railway, CSX Transportation, and Norfolk Southern.

How does increased rail volume lead to slower service?

When more trains and containers crowd limited rail infrastructure, yards and mainlines can become congested, reducing average train speeds and causing delays in pickup and delivery.

What should logistics managers expect in the near term?

They should watch for railroads to adjust capacity and possibly impose surcharges. Monitoring weekly rail performance metrics from the Association of American Railroads can provide early signs of easing or worsening conditions.

Sources

• Union Pacific (up.com)
• BNSF Railway (bnsf.com)
• CSX Transportation (csx.com)
• Norfolk Southern (norfolksouthern.com)

Source: news – FreightWaves