Steel, Metals & Scope 3: Why Transportation Mode Matters

Steel makes the transportation question easy to see. The product is heavy, the loads are substantial, and the same freight lanes can repeat throughout the year.

Spend a few minutes in the Western New York & Pennsylvania Railroad's Olean yard and the scale becomes tangible. Flatcars carrying heavy steel plate are not an abstract supply-chain statistic. That material is part of the inbound flow supporting manufacturers such as Cimolai-HY in Olean.

For companies measuring Scope 3 emissions, movements like these raise a practical question. When significant tonnage is moving a significant distance, should transportation mode be part of the review?

Heavy freight changes the transportation math

Steel coils, plate, structural shapes, pipe, tube and fabricated components all place real demands on a transportation network.

Payload matters. Railcar and truck capacity matter. So do loading and unloading equipment, securement, storage, delivery timing, inventory flow and the distance between the producing mill, processor, fabricator and customer.

Those factors are why a useful transportation review should begin with the actual freight rather than a broad argument about rail versus truck.

A heavy shipment moving a short distance may be an obvious truck move. A repeated lane carrying substantial annual tonnage over a longer distance can present a very different picture.

Some characteristics that can make a steel or metals lane worth reviewing include:

• High payload weight on individual shipments.
• Meaningful annual tonnage moving through the same supply chain.
• Repeat origins and destinations rather than one-time project freight.
• Longer line-haul distances where transportation efficiency has more opportunity to matter.
• Rail-compatible products and handling such as plate, coil, pipe, structural steel, scrap or other industrial metals.

None of those characteristics guarantees that rail is the right answer. They simply make the lane worth putting on the worksheet.

Where transportation fits into Scope 3

The GHG Protocol includes third-party road, rail, marine and air transportation within its Scope 3 transportation guidance.

Depending on who purchases the transportation and where the movement occurs in the value chain, freight can fall within upstream or downstream transportation categories.

The accounting can become detailed. The freight question is more direct.

If a company is already examining the value-chain impact of raw materials, manufacturing and distribution, it makes sense to understand how those materials and finished products are actually moving.

Our broader series article, Scope 3 Transportation Emissions: Where Freight Rail Fits , looks at that question across industrial freight. Steel and metals provide a useful real-world example because weight and volume make the transportation component difficult to ignore.

Steel on the WNYP: two real examples

On the WNYP, steel is not simply an industry category on a website. It is freight moving through the railroad and infrastructure being built by manufacturers along the line.

Cimolai-HY • Olean, New York

In Olean, steel plate moving through the WNYP yard serves Cimolai-HY , a structural-steel fabricator whose work includes bridges, buildings, stadiums and other major structures.

The movement provides a simple reminder about manufacturing logistics: before a finished structural component leaves a fabrication plant, the raw steel first has to arrive.

For an operation handling material of that scale, inbound freight is not separate from the manufacturing process. Reliable access to steel, the weight of each shipment, unloading capability and production schedules all have to work together.

That does not make Cimolai-HY a Scope 3 case study. It is a visible example of why transportation matters in a heavy industrial supply chain.

Webco Industries • Oil City, Pennsylvania

Farther south on the WNYP, Webco Industries operates its Oil City Tube facility, producing carbon-steel tubular products.

In 2026, Webco completed a new rail spur at the Oil City operation, making Oil City the first rail-served facility in Webco's network.

Webco Industries' new rail spur in Oil City, Pennsylvania. The completed project established direct rail access at the first rail-served facility in Webco's network.

Getting to that point was a partnership.

WNYP worked with Webco during development of the project, including development and submission of the rail-freight grant application and planning for the rail infrastructure and operating requirements needed to serve the facility.

In December 2024, the Pennsylvania Department of Transportation announced a $1.14 million rail-freight grant for Webco to construct the new spur and install railcar loading and unloading equipment.

A detailed announcement of the project described approximately 700 to 800 feet of new track and a gantry crane capable of unloading large steel coils weighing approximately 20 to 23 tons each. At the time the funding was announced, projected traffic was estimated at 20 to 30 railcars per month.

The grant helped turn a transportation concept into physical infrastructure, but the larger story is what the project made possible.

For Webco, the new spur adds rail as a transportation option at a company facility for the first time. For the Oil City operation, it creates another way to receive the heavy raw materials that support production. And for WNYP, it demonstrates the role a regional railroad can play well before the first loaded railcar arrives.

Railroads can work with manufacturers during project development to evaluate track access, operating requirements, infrastructure needs and potential public funding opportunities. That collaboration can be especially important when a company is considering rail for the first time.

It is also the type of project where bringing the railroad into the development conversation early can help. WNYP works with manufacturers, developers and communities on rail-served industrial development before track layouts, buildings and operating requirements become fixed.

The Scope 3 question should not replace the logistics question

Sustainability can be a reason to revisit a freight lane, but it should not replace the fundamentals of transportation planning.

Cost still matters. Service still matters. Inventory still matters. The railcar has to fit the product. Loading and unloading have to work. The facility needs sufficient space and the transportation plan has to support production rather than complicate it.

If a rail alternative requires a truck connection at one end of the move, that truck leg belongs in the analysis too.

That is also the approach described on WNYP's Sustainability & Stewardship page: use the actual shipment and operating information rather than applying a generic percentage to every movement.

Start with one real steel lane

A manufacturer, processor, fabricator or distributor does not need to redesign its entire transportation network to determine whether an opportunity exists.

Start with one movement that repeats often enough to matter.

From there, the real comparison can begin.

Does the origin already have rail access? Is the destination rail served? Could a transload facility bridge a gap? What railcar is appropriate? How often does the lane repeat? What would local truck delivery look like? How much inventory would the alternative require?

Some lanes will remain truck moves. Some will not have enough volume. Others will have equipment, service or facility constraints that make rail impractical.

But a heavy lane that has moved the same way for years may also deserve a fresh look.

Rail infrastructure creates transportation options

Webco's first rail-served facility highlights another important part of this conversation: transportation choices are partly determined by the infrastructure available to the manufacturer.

A company without track cannot simply decide tomorrow that a railcar should arrive at the loading dock. A siding, turnout, unloading area, clearances, drainage, railcar capacity and operating access all have to be considered.

The same is true when an existing industrial property is being expanded or a new manufacturing site is being selected.

Rail access is much easier to evaluate before the site plan, buildings, utilities and truck circulation are fixed than after construction is complete.

The Webco project is a good example of what that early collaboration can accomplish: a manufacturer identified an opportunity to add rail, worked with its serving railroad, pursued available infrastructure funding and ultimately created a new long-term transportation capability.

Transportation deserves a place in the conversation

Steel manufacturers already spend enormous effort managing sourcing, production, quality, inventory and delivery.

Scope 3 does not change those priorities. It gives some companies another reason to look at the transportation connecting them.

The steel plate moving through Olean for Cimolai-HY and Webco's first rail-served facility in Oil City show two different pieces of that story.

One shows a working heavy-industrial rail supply chain.

The other shows how a new rail option can be created through manufacturer, railroad and public-sector collaboration.

Neither example means rail belongs in every steel supply chain. But when heavy freight moves in repeat volumes over meaningful distances, the mode deserves to be evaluated.