Intermodal traffic edge ahead in a down week for commodity freight on U.S. railroads, the Association of American Railroads said.
Total U.S. weekly rail traffic for the week ending March 28 was 515,921 carloads and intermodal units, up 0.5% from the same week a year ago.
Carload freight totaled 233,833 units, down 0.8%, while intermodal volume came to 282,088 containers and trailers, better by 1.6% y/y.
Six of 10 carload commodity categories gained led by petroleum, 11.2%; chemicals, 5.9%; and non-categorized freight, 7%.
Coal led decliners at 8.3% followed by nonmetallic minerals such as sand and stone, 3.8%; and metallic ores and minerals typically used in steel production, 2% lower y/y.

Through the first 12 weeks of 2026, U.S. railroads reported cumulative volume of 2,684,108 carloads, ahead 4.2%, and 3,311,403 intermodal units, a decrease of 0.2% percent from 2025. Total combined traffic reached 5,995,511 carloads and intermodal units, up 1.7%
North American weekly volume on 9 reporting U.S., Canadian and Mexican railroads was 342,214 carloads, lower by 2.1%, and 371,548 intermodal units, up 0.8% y/y. Total combined weekly traffic slipped 0.6% to 713,762 carloads and intermodal units. Volume for the first 12 weeks of 2026 was 8,245,424 carloads and intermodal units, a narrow 1.8% gain from 2025.
Subscribe to FreightWaves’ Rail e-newsletter and get the latest insights on rail freight right in your inbox.
Read more articles by Stuart Chirls here.
Related coverage:
Greenbrier, TTX unveil commemorative USA 250th boxcars
CN made ‘inaccurate claims’ on rail merger data: UP exec
Brokerage Compliance Symposium
The day before F3. Every compliance issue you face - fraud exposure, carrier liability, FMCSA rules, cargo theft, insurance gaps - navigated by attorneys and operators defining best practices in a changing industry.
F3 Awards Dinner
The night before F3. FreightTech100 companies honored. FreightTech 25 and Shipper of Choice winners revealed live. Cocktail reception into dinner and live music - 300 industry leaders in one purpose-built room.
F3: Future of Freight Festival
Industry-defining keynotes, rapid-fire technology demos, and industry leaders networking in experiences across Chattanooga - plus the inaugural F3 Awards Dinner featuring the FreightTech and Shipper of Choice reveals.
The day before F3. Every compliance issue you face - fraud exposure, carrier liability, FMCSA rules, cargo theft, insurance gaps - navigated by attorneys and operators defining best practices in a changing industry.
The Signal at Chattanooga Choo Choo • Chattanooga, TN Register NowThe night before F3. FreightTech100 companies honored. FreightTech 25 and Shipper of Choice winners revealed live. Cocktail reception into dinner and live music - 300 industry leaders in one purpose-built room.
The Signal at Chattanooga Choo Choo • Chattanooga, TN Register NowIndustry-defining keynotes, rapid-fire technology demos, and industry leaders networking in experiences across Chattanooga - plus the inaugural F3 Awards Dinner featuring the FreightTech and Shipper of Choice reveals.
The Signal at Chattanooga Choo Choo • Chattanooga, TN Register Now