Intermodal Is Becoming Shippers’ Main Escape Valve From Tight Truckload—But the Risk May Just Be Moving Downstream

Domestic freight buyers are not just paying more for truckload in July 2026; they are starting to reroute around it. Fresh mid-July results from J.B. Hunt’s second-quarter earnings release and management commentary, along with recent rail and market data, suggest intermodal is moving from a selective option to a broader tactical response as truckload capacity tightens, spot prices stay elevated and fuel costs remain volatile.

The shift matters because it changes where execution risk sits. Lower linehaul cost and better access to capacity can make intermodal more attractive on the right freight, but the extra handoffs also increase exposure to rail-ramp performance, drayage capacity, chassis supply, appointment reliability and slower recovery when a shipment slips.

J.B. Hunt’s quarter turned a market signal into a headline

The clearest near-term proof point came on July 15, 2026, when J.B. Hunt reported second-quarter revenue of $3.50 billion, up 19% year over year, with revenue excluding fuel surcharges up 11%. The company said the increase was driven in part by higher load volumes and higher revenue per load in its intermodal segment. In the release, J.B. Hunt said intermodal volume increased 10% from the same quarter in 2025, while higher fuel expense partially offset some margin gains at the consolidated level.

Management was even more direct on the earnings call. President Shelley Simpson said intermodal’s value proposition is now “the strongest it has been in more than a decade,” and said J.B. Hunt set a quarterly volume record of more than 578,000 intermodal loads in the second quarter. Volumes were up 9% in April, 9% in May and 12% in June; transcontinental volume rose 5%, while eastern volume increased 16%. Simpson also said “conversion activity is at levels we have not seen in more than a decade,” even though rail service had “moderated slightly as volumes accelerated.” J.B. Hunt earnings release; earnings-call transcript.

That is important not because one carrier had a strong quarter, but because J.B. Hunt sits at the center of U.S. domestic intermodal flows and its results are one of the fastest ways to see how mode choice is changing in the market.

Why road-to-rail conversion is accelerating now

The backdrop is a truck market that has become materially less forgiving. In its late-June freight forecast update, ACT Research said truckload has entered “a period of rising rates and tight capacity,” driven more by constrained supply and falling driver availability than by a broad-based freight boom. ACT said aggregate DAT contract rates in May were nearly 10% above year-ago levels and explicitly advised transportation teams to “rebalance modal strategies where tighter truckload conditions improve intermodal competitiveness.”

That same theme surfaced publicly at the SMC3 Connections conference in early July. In reporting published by S&P Global / Journal of Commerce, ACT analyst Tim Denoyer said truckload contract rates could rise 20% year over year by the end of 2026, before fuel surcharges, with spot rates up 40%. He argued that driver availability, not just truck supply, is becoming the binding constraint.

Fuel is reinforcing the decision. According to the U.S. Energy Information Administration, the national average on-highway diesel price rose from $4.578 per gallon on July 6, 2026 to $4.796 on July 13, 2026, after already running above late-June levels. Because rail linehaul is generally less directly exposed to per-mile diesel burn than pure over-the-road trucking, that kind of move can widen the appeal of intermodal on freight that has transit-time flexibility.

FreightWaves reached a similar conclusion in its July 2026 State of the Industry report, which said strong volume growth and lower fuel exposure were continuing to make intermodal attractive relative to truckload as spot rates, rejection rates and volumes all reached new annual highs.

Rail data says this is broader than one earnings call

The rail data also supports the idea that intermodal is strengthening across the network, not just at one provider. The Association of American Railroads reported U.S. weekly intermodal volume of 293,066 containers and trailers for the week ending June 27, 2026, up 10.1% from a year earlier. For the week ending July 4, 2026, North American intermodal units were up 10.3% year over year, and for the week ending July 11, 2026, they were up 3.4%.

AAR’s July industry overview went further, saying weekly average intermodal volume reached a new monthly record in June, year-to-date container traffic hit new quarterly and first-half highs, and intermodal was benefiting from “a favorable combination” of strong rail service, more expensive trucking, consumer goods movement and some import pull-forward ahead of possible policy changes. See AAR’s Rail Industry Overview and weekly traffic updates here.

Carrier-level network data points in the same direction. Norfolk Southern’s weekly performance report for the week ending July 17, 2026 showed 81,550 intermodal units and a terminal dwell figure of 22.5 hours. That does not prove widespread congestion on its own, but it does underscore the operational reality: when intermodal demand rises, performance at terminals and local handoffs matters as much as linehaul economics.

Which freight is actually moving from truck to rail

The current road-to-rail shift is not a blanket migration. The freight most likely to convert has a few common traits:

Best-fit freight profiles

• longer-haul domestic freight where linehaul savings matter
• repeatable network freight with predictable origins and destinations
• lower-urgency replenishment freight that can absorb an extra day or two
• import-related inland moves, especially from coastal gateways into major inland distribution zones
• lanes where transcontinental or major eastern intermodal networks already have density

J.B. Hunt’s mix offers a clue here. Its second-quarter growth included both transcon and eastern gains, suggesting the current opportunity is not confined to one corridor. AAR’s commentary about pull-forward imports also points to import-heavy inland moves as a likely contributor.

Poor-fit freight profiles

Some freight still does not belong on rail, regardless of price pressure:

• shutdown-critical parts
• plant-down recovery freight
• highly time-definite industrial moves
• awkward, oversized or project cargo that does not fit standard containerized intermodal networks
• remote-destination freight with weak ramp proximity
• any move that cannot tolerate more handoffs or slower exception recovery

That distinction matters for industrial shippers. A lower-cost linehaul option is only useful if the freight profile can survive a missed ramp cutoff, a late dray pickup or a rail-service miss without causing a production event downstream.

The risk may be moving to drayage, ramps and recovery timelines

Intermodal is not eliminating tightness; it is redistributing it.

J.B. Hunt itself flagged the next constraint. On its earnings call, management said the company still needs to onboard more drayage capacity to support new business. That is one of the most important details in the quarter because it shows where the bottleneck can move once linehaul freight starts converting at scale.

Every intermodal move adds transfer points: pickup to ramp, ramp to rail, destination ramp to local dray, and often a tighter appointment window at the warehouse or plant. If rail volumes continue rising, the stress points are likely to show up in:

• first-mile and last-mile drayage availability
• chassis access and turn times
• ramp gate fluidity
• local appointment performance
• exception management when a late rail leg forces a delivery reset

AAR said rail service remains strong overall, and J.B. Hunt described rail service as only slightly moderated. But those statements should not be read as proof that every lane or ramp will perform evenly in a higher-volume environment. In practice, intermodal service can remain attractive at the network level while becoming more variable at specific inland handoff points.

What changes in mode selection decisions now

The main July 2026 development is behavioral. A few weeks ago the domestic freight story was still mostly about truckload repricing. Now the more useful question is what transportation teams are doing with that information.

The answer appears to be a more deliberate sorting of freight by urgency and network fit:

1. Shift eligible linehaul to intermodal where transit flexibility exists.
2. Protect scarce truckload capacity for freight that truly requires direct service, fast recovery or low handoff risk.
3. Audit drayage partners near key ramps before awarding more rail volume.
4. Tighten visibility and milestone tracking at each interchange, not just final delivery.
5. Reserve team truck, hot shot and air for genuine plant-risk exceptions rather than routine replenishment.

That is a more structural change than a one-quarter earnings anecdote. If truckload remains tight through bid season and fuel stays volatile, intermodal’s share gain could continue into the second half of 2026. The open question is whether local execution networks can absorb the added volume without creating a new layer of service failures.

For CAP Logistics readers, the practical takeaway is to revisit routing guides now: identify freight that can tolerate rail transit, test drayage coverage around critical ramps, and keep expedited truck or air capacity focused on true downtime-risk moves rather than shipments that can safely shift modes.