Although you won’t have an overweight problem if the freight is less than 40,000 lbs, keep in mind that shippers can make mistakes. The weight limits there are:ĥ,500 kg steering axle (12,125 lbs some provinces vary)ġ7,000 kg drive and tandem axles (37,479 lbs)Ī lot of truckers only weigh their trucks if the bill of lading (BOL) shows the freight weighs 40,000 lbs or more. If you haul in Canada, they use the metric system. You should take state limits into account in your route planning. Non-Interstate roads in some states may have different weight requirements. These weight limits apply when you’re driving on the Interstate Highway. As long as the steer axle is less than 20,000 and your total weight isn’t over 80,000, you’re okay. But the Bridge formula allows up to 20,000 lbs on a single steer axle.Īt times you may have a heavy load where the steer axle weighs more than 12,000 lbs, but your drive and tandem axles are within legal limits.
Notice that if you have 34,000 lbs on the drive axles and 34,000 lbs on the trailer tandem axles, that leaves 12,000 lbs for the steer axle. The truck scales measure double axles as a single unit. While the bridge formula allows a max of 17,000 per axle, a semi rig has 2 drive axles and 2 trailer axles.
In the United States, your axle weight limits are: The Federal Government regulates axle weight using the Federal Highway Administration’s Bridge Formula. In this blog post, we’ll cover the basics of truck axle weight distribution and walk through the steps to adjusting axle weight. You could end up paying thousands of dollars. This is a time when you need your truck axle weight within the legal limits. The weigh station is open and your PrePass is blinking red.
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