Annual Rail Volume. 1.6B tons. Grain is #2 rail commodity by tonnage. 90%+ moves in covered hoppers. Export drives 60% of volume. Ethanol is the growth segment. Shuttle Train Savings. 10-15%. 100+ car trains cycle continuously. Elevator must load in <15 hours. Railroads prioritize shuttle lanes. Highest efficiency = lowest rate. Seasonal Swing. 30-40%. Harvest = max demand on car supply. Car shortages are common Sep-Nov. Pre-position cars before harvest. Storage costs spike if rail is slow.
Part 7B
Chemicals & Hazmat
High-value, high-regulation — where compliance is non-negotiable
Chemical Rail Transport Essentials
Tank cars are the primary equipment: DOT 111, DOT 117 (enhanced safety), pressurized
DOT 117 required for Class 3 flammable liquids (crude oil, ethanol) since 2025
Pressurized tank cars for LPG, chlorine, anhydrous ammonia — specialized and expensive. 49 CFR Parts 171-180 govern HAZMAT classification, packaging, marking, and placarding
Every shipment needs: shipping papers, placards, emergency response info, and proper marks
FRA HM-263: real-time train consist reporting required by 2026 — shippers must provide accurate data
Responsible Care program: chemical industry's voluntary safety management system
Insurance and liability costs are significantly higher for hazmat rail movements
Frac Sand & Drilling Minerals: The Transload Commodity
Frac sand (silica proppant) is essential for hydraulic fracturing in oil & gas drilling
Wisconsin, Illinois, and Texas are the primary sand sources — moves 500-1,500 miles by rail
Open-top hoppers and covered hoppers are the standard equipment (100-ton loads)
Highly transload-dependent: rail to transload yard near wellhead, then truck to drill site
Demand is cyclical: tied to oil prices, rig counts, and completion activity
Peak frac sand demand hit 100M+ tons in 2018-2019 — stabilized but still significant volume
Unit train and multi-car block service available on major lanes (Wisconsin→Permian Basin)
Key risk for shippers: rapid demand swings can strand leased car fleets during downturns
Part 7E
Forest Products & Lumber
From sawmill to distribution — boxcars and centerbeams
Forest Products Rail Shipping
Lumber & Building Materials. Centerbeam flatcars are the primary equipment. Lumber, plywood, OSB, dimensional timber. Load securement per AAR standards is critical. Seasonal demand tied to construction (spring/summer). Distribution center delivery via rail + truck transload. Competitive with truck at 500+ miles. Pulp, Paper & Packaging. Boxcars protect moisture-sensitive products. Newsprint, linerboard, corrugated, tissue. Paper mills often have direct rail service. Large roll sizes require special loading techniques. Palletized freight loaded with forklifts. Covered gondolas for wood chips to mills.
Part 7F
Steel & Metals
Heavy, valuable, and demanding — precision loading for maximum payload
Steel & Metals Rail Logistics
Coil cars: specialized cradle design for steel coils — prevents rolling and damage
Gondolas: flat-bottom for steel beams, plates, structural shapes, scrap
Flatcars: oversized loads, heavy equipment, pipe, structural steel
Weight distribution is critical — improper loading causes derailments and penalties
Securement standards (AAR Circular OT-55) are strictly enforced — liability is on the shipper
Mill-to-customer: steel mills ship direct to OEMs, fabricators, service centers
Scrap-to-mill: scrap yards ship to mini-mills and integrated mills (gondola loads)
Steel is high-value freight — railroads compete hard for these lanes
Dedicated consist cycling between origin-destination, 100+ cars, fastest loading
Enhanced safety tank car for flammable liquids — thicker shell, thermal protection
Rotary Dumper
Power plant equipment that flips railcars to unload coal — 100+ cars in hours
Centerbeam Flatcar
Specialized car for lumber/building materials with center partition
Railcar with cradle designed specifically for transporting steel coils safely. 286K Car
Railcar rated at 286,000 lbs gross weight — the modern standard capacity
Frac Sand (Proppant)
Silica sand used in hydraulic fracturing — moves by rail to transload near drill sites
Constructive Placement
Car considered placed even if held at nearby yard due to full siding
Review Questions
Which car type is used for each: grain, chemicals, coal, lumber, steel coils, and scrap metal?. 2
Why does a shuttle train get 10-15% lower rates than single-car shipments?. 3
What is the difference between a DOT 111 and a DOT 117 tank car, and why does it matter?. 4
How do seasonal patterns affect rail capacity for grain and aggregate shippers?. 5
Why is ethanol the fastest-growing energy commodity on rail, and what car type is required?. 6
Why is weight distribution critical for steel shipments, and who bears liability for errors?. 7
When does transloading make economic sense for aggregate shipments?
Practical Assignment: Commodity Shipping Plan
Step 1: Choose your commodity (or pick one: grain, chemicals, aggregates, steel, or lumber)
Step 2: Identify the correct car type and whether to lease or use railroad-supplied equipment
Step 3: Map the supply chain: origin facility → rail route → destination or transload facility
Step 4: Estimate pricing: use the cost benchmarks from this module and Module 3
Step 5: Identify regulations: what DOT/FRA/AAR rules apply to your commodity?
Step 6: Calculate seasonal risk: when will capacity be tight, and how will you plan around it?
Step 7: Build a one-page shipping plan with car type, route, estimated cost, and risk factors
Key Takeaways
✅ Every commodity has specific car types — using the wrong one costs money or creates safety issues. ✅ Grain, coal, and ethanol are unit-train commodities — volume unlocks massive rate discounts. ✅ Chemicals require strict DOT/FRA compliance — cutting corners is not an option. ✅ Aggregates are transload-dependent — the last mile determines if rail pencils out. ✅ Steel is high-value and weight-sensitive — proper loading prevents derailments and claims. ✅ Seasonal patterns drive capacity: plan your car supply 60-90 days ahead of peak season. ✅ Forest products are competitive with truck at 500+ miles — rail wins on long haul.
📋 Practical Exercise: Commodity-Car Matching
PART 1: Match these 10 commodities to the correct car type:. 1
Corn (export) | 2
Crude oil | 3
Crushed limestone | 4
Steel coils | 5
Newsprint rolls. 6
Chlorine gas | 7
Scrap metal | 8
Dimensional lumber | 9
Ethanol | 10
PART 2: For TWO of the commodities above:. - Identify the specific car type and DOT classification (if applicable). - Estimate lease cost per car per month. - List 2-3 unique regulatory or operational requirements. - Determine if unit train, manifest, or transload service is most appropriate
PART 3: Calculate break-even for a 50-car covered hopper fleet:. - Lease at $650/month vs. railroad-supplied at $150/trip premium. - Assume 3 trips/month/car
At what utilization rate does leasing win?
COMING UP NEXT
Module 8: Safety, Compliance & Regulations. Know the rules or pay the price — FRA, AAR, HAZMAT, and beyond.
