Axle Weight Limit Question

That is per axle.

 

Sounds like they are intending it to mean per axle regardless of whether it's single or part of a tandem/tridem. 9 tons would be a rather odd limit to put on a tandem axle so I don't think it's a per axle group limit. Means a regular 5 axle combination loaded to 80k would be ok, but a trailer with a 10' spread or pup trailer with single axles would be in violation if the weight was over 9 tons.

There wasn't any Gross Vehicle Weight limit listed?

 

Ahh, so it relates to the golden era of the 73,280 gross weight days? Kinda makes sense.

 

pdf from MN. Look at page 2

http://www.dot.state.mn.us/cvo/oversize/docs/groupweightson10-tonduringslr.pdf

It's 18,000 a single axle or 34,000 on tandems < 8' apart.

They need to attach the pdf to the sign!

I like how some states assume out of state drivers know every little detail of their state laws. They can easily post everything.

 

It's mostly on county highways here, and around cities. Old signage. But not much to worry about under normal instances. Mostly worry about spring thaw limits.