Flatbed winter operations: chain laws, tarps and straps in snow and ice

Flatbed winter work is a different job from summer. You chain up on mountain passes, tarp loads in sleet, chip ice off binders and drive a trailer that can be light enough to get pushed around when it is empty. Flatbed freight also slows in winter: demand usually peaks in spring and summer with construction (Trucking Dive, quoting DAT), so winter loads take more planning. This guide covers the chain laws on the main western routes with official links, what snow and rain do to tarps and straps, and how we plan winter weeks on the dispatch side.

Chain laws for trucks: the states we checked

Every state can close a road or require chains in a storm. These are the rules that most often catch out-of-state open-deck drivers. Posted signs and officers always override this summary.

Checked on each state's own pages on October 26, 2026. Before a winter trip, check the state's 511 service for active controls; many states also publish chain diagrams by axle setup.

Chaining up a flatbed rig

• Carry enough chain for the strictest state on the route, plus spares. Washington, for example, asks for two extra.
• Chain at a chain-up area, never in a travel lane. Wyoming warns specifically against stopping in the driving lane.
• Practice at home in daylight. The first time you chain up should not be at night on a pass.
• Approved alternatives such as textile traction devices are accepted in some states (Montana lists them by name) and not others. Check before you rely on one.
• Remove chains when the requirement is lifted. Chains are slow, wear fast and damage dry pavement.

Tarping in snow and rain

• Tarp before the weather, at the shipper if you can. Tarping a load in freezing rain is slow, slippery and dangerous.
• Snow loads tarps. Snow and ice sitting on a tarp add weight high on the load and can pull tarps loose. Clear what you safely can at stops, from the ground.
• Wet tarps are heavier. Water soaks into seams and folds, and a frozen tarp does not fold. Dry them out between loads when possible.
• Wind is the bigger danger when tarping. If you cannot control the tarp, wait. Our flatbed fall protection guide covers the shipper rules on working at height.
• Tarp pay should reflect winter tarping time. It is negotiated per load; see our tarping guide.

Straps, chains and binders in the cold

• Re-check more often. The legal minimum is within the first 50 miles, then every 3 hours or 150 miles, or at a change of duty status (49 CFR 392.9). Ice, snow load and temperature swings loosen loads, so many drivers check at every stop in bad weather.
• Frozen straps and winches. Ice in a winch or ratchet can stop it locking or releasing. Knock ice out before you tension, and never force a frozen ratchet with a bar beyond its design.
• Wet straps can stretch and lose tension as they dry or freeze. Re-tension after the first miles.
• Salt and grit wear webbing and corrode chain and binders. Rinse and inspect gear after salty runs; damaged tiedowns are not allowed under the securement rules.
• Keep spares dry in a box, not loose on the deck.

Running empty and light loads

An empty flatbed is light on the drive axles, which costs traction on ice, and a light trailer is easier for wind to push around. Pennsylvania's plan restricts unloaded or lightly loaded open trailers from the first tier of a storm. Plan reloads so you are not deadheading across a pass in a storm, and keep a few hours of buffer on winter delivery appointments.

How we plan flatbed winter weeks

On our desk, winter planning means looking at the route before the rate: chain controls on the passes, storm restrictions in the Northeast, and where the next load will come from if a shipper closes for weather. We tell you when a load runs through a chain law state, so you are carrying what the law asks, and we will turn down a cheap load that strands you on the wrong side of a pass. For the freight itself, see the flatbed loads we book and what flatbed trucking involves year-round. More guides are on the guides page.