U.S. Rail Freight Transportation Strengthened in March

According to March 2026 data, U.S. rail freight transportation delivered a strong recovery signal after a prolonged period of volatility. An analysis published by the Association of American Railroads (AAR) indicates that the freight economy is beginning to settle onto a more solid footing.

AAR data show that March 2026 marked one of the strongest monthly performances for the U.S. freight rail sector in recent years. The analysis reveals that the weekly average of 230,401 carloads reached the highest March level since 2019 and represented the strongest monthly average performance since October 2022. On a year‑over‑year basis, carload volumes increased by 1.7 percent, marking the third consecutive monthly gain and confirming the continuation of the recovery trend that began earlier in the year.

Meanwhile, total carloads in the first quarter of 2026 reached 2.68 million units. This figure represents a 4.2 percent increase compared with the same period last year and stands out as the strongest first‑quarter performance since 2019.

These figures suggest that the increase in rail volumes is not temporary but points to a more durable improvement in economic activity. The fact that 12 out of 20 major commodity categories recorded year‑over‑year growth in March further indicates that the recovery is being driven by a broad economic base rather than by isolated sectors.

Signals of Stabilization in Intermodal Transportation

According to the analysis, intermodal transportation, which connects U.S. consumers with global supply chains, regained momentum in March. Weekly average intermodal loadings totaled 280,076 units, ranking as the second‑highest March level on record. Intermodal volumes increased 1.4 percent year over year, marking the second consecutive month of growth for the sector.

Although intermodal volumes in the early months of the year remained slightly below last year’s exceptionally high levels, the rebound in March demonstrated the resilience of consumer‑oriented freight flows. This development also provided strong indications that the post‑pandemic normalization process is nearing completion.

Commodity Groups Showing Strong Growth

Grain shipments contributed the most to growth in March. More than 97,000 grain carloads were transported on U.S. railroads, representing a year‑over‑year increase of 10.3 percent. First‑quarter grain volumes reached their highest first‑quarter level since 1993. Strong export demand and continued global consumption played a key role in this increase.

At the same time, grain processing products rose by 6.2 percent. Biofuel production played a central role in driving grain processing activity, supporting rural investment, and generating rail‑dependent byproducts transported over long distances.

Chemical shipments also maintained a strong performance, setting a record with a weekly average of 35,580 carloads and posting a 5.5 percent year‑over‑year increase. Low natural gas prices provided energy and feedstock advantages to the chemical sector.

Additionally, petroleum and petroleum products rose by 7.7 percent, waste and nonferrous metal scrap by 12.6 percent, and coke by 12.3 percent. Shipments of motor vehicles and parts increased by 2.6 percent, stone‑clay‑glass products by 2.7 percent, and ferrous scrap by 2.6 percent. Food products excluding grain grew by 1.3 percent, while lumber and wood products increased by 1.4 percent.

Commodity Groups Under Pressure

The recovery recorded in March 2026 did not affect all commodity groups equally. Primary metal products declined by 8.7 percent, while metallic ores fell by 12 percent. Crushed stone and sand shipments decreased by 3.8 percent, paper and pulp products by 4.6 percent, and forest products by 6.9 percent.

Coal carloads totaled 236,000 units, reflecting a 1.5 percent year‑over‑year decline. However, weekly averages reached their highest level in the past six months, and coal shipments increased by 3.3 percent year to date. Coal accounted for 16.6 percent of U.S. electricity generation in 2025, and railroads continued to carry more than 70 percent of those shipments.

Meanwhile, non‑coal carloads reached a weekly average of 171,338 units. This marked the strongest March performance since 2008 and the highest monthly level since August 2019. Year‑over‑year growth stood at 2.9 percent, while year‑to‑date growth reached 4.5 percent.

Overall, the March 2026 data point to a strong, broad‑based, and durable recovery in U.S. rail freight transportation. Record volumes in chemicals and agricultural products, multi‑year highs in non‑coal freight, and the rebound in intermodal transportation all signal renewed economic momentum.

Nevertheless, inflation, energy costs, geopolitical risks, and uncertainties in the labor market remain factors that the sector will need to monitor closely. As rail transportation continues to occupy a critical intersection between production, trade, and energy, the March data released by AAR clearly demonstrate that the U.S. freight economy is beginning to stand firmly on its feet once again.

Source: FreightWaves