Maryland Truck Dispatch: Port of Baltimore and I-81 Freight

Maryland is a consumer state that sits between big freight neighbors. The Baltimore and Washington metro areas buy far more than Maryland makes, so freight pours in from Pennsylvania's warehouses and Virginia's ports. In 2022, about 67 million tons arrived in Maryland by truck from other states, while about 45 million left. Pennsylvania alone sent about 27 million tons.

For owner-operators, that means Maryland is easy to deliver into and harder to leave with a good load. The best outbound freight comes from the Port of Baltimore and the distribution centers around it.

The Port of Baltimore

Baltimore is a specialist port. It's best known for roll-on, roll-off cargo: cars, trucks, and farm and construction machinery. The Maryland State Archives reports that in 2025 the port handled a record 887,513 tons of imported roll-on, roll-off cargo, the high and heavy equipment that drives on and off ships. It also handles containers, sugar, gypsum and other bulk.

• Machinery imports leave Baltimore on flatbeds, step decks and lowboys. We book flatbed loads that fit legal size and weight. We don't book oversize, step deck or RGN.
• Container imports go to warehouses around Baltimore and along I-95 and I-70.
• The Key Bridge on I-695 collapsed in March 2024 and is being rebuilt. Until it reopens, trucks that can't use the harbor tunnels take the longer way around the Beltway.

Maryland's freight areas

Hagerstown deserves a mention. It sits on I-81, the same warehouse corridor that runs through Pennsylvania's Chambersburg and Carlisle, and it's one of the better places in Maryland to reload.

What Maryland ships

The largest van, reefer and flatbed-type freight leaving Maryland origins by truck in 2022, from FAF6:

• Nonmetal mineral products: about 24 million tons
• Other foodstuffs, mixed freight and other agricultural products: about 5.5 to 5.8 million tons each
• Wood products: about 4.9 million tons
• Motorized vehicles: about 3.9 million tons, largely imports moving off the port

Maryland trucks deliver most to Virginia and Pennsylvania, then New Jersey, Delaware and Washington, D.C.

Maryland freight by the numbers

Tonnage from the BTS Freight Analysis Framework (FAF6, base year 2022). Diesel tax from the IFTA, Inc. rate matrix.

Trailers that fit Maryland freight

A Hagerstown van week on I-81 and port freight

A Hagerstown van starts with a short I-81 load to Baltimore, then rides port imports south and works back up I-85 and I-95.

An example of how a week can be planned, not a promise of loads, rates or miles. Distances are rounded.

Eastern Shore produce, beach traffic and snow

• Winter: Snow in western Maryland on I-68 and I-70, and ice that snarls the Baltimore and Washington Beltways.
• Summer: Eastern Shore produce, beach traffic on US-50 on weekends.
• Fall: Import peak through Baltimore and the holiday build.

Maryland's busy seasons follow the port and the holidays more than the harvest. The seasonal freight calendar has the national view.

Maryland tolls and fuel tax

• Fuel tax. Maryland diesel tax is about 47.5 cents a gallon on the IFTA matrix for the 4th quarter of 2026. The IFTA calculator shows how much your Maryland miles owe.
• Tolls. The harbor tunnels, the Bay Bridge, I-95's Fort McHenry Tunnel and the Intercounty Connector are tolled.
• Congestion. The Beltways can turn short runs into long days. Price the hours with the load profit calculator.

Maryland reload points

Delivering into the Washington suburbs

A lot of Maryland's inbound freight ends up in Montgomery and Prince George's counties, outside Washington, D.C. The loads are good, but the deliveries take planning.

• Time the Beltway. I-495 and I-270 back up for hours at rush hour. Early morning or midday arrivals go smoother.
• Plan where you'll park. Truck parking near the city is scarce. Find a spot before you run out of hours.
• Head out to reload. Baltimore, Hagerstown or the I-81 corridor usually has a better outbound load than the suburbs.

Maryland checklist: Baltimore routes, port machinery and traffic

• Check routes around Baltimore, since the Key Bridge on I-695 is being rebuilt.
• Confirm port machinery loads are legal size. We don't book oversize.
• Plan the outbound load before delivering in the Washington suburbs.
• Allow extra time for Beltway traffic around Baltimore and Washington.
• In winter, check I-68 and I-70 in western Maryland before tight appointments.

Booking Maryland freight with us

Maryland buys more than it makes, so your dispatcher books the outbound load first. The best sources are the Port of Baltimore and the warehouses where I-81 and I-70 cross near Hagerstown, not the Washington suburbs.

Pennsylvania sends Maryland more freight than any other state. See Pennsylvania and Virginia, plus New Jersey up I-95.