Michigan Weight Restriction Question

Can anyone give me the definitive meaning behind a Class B Road with a weight restriction of 18000 Single 26000 Tandem? I drive a straight truck that has been scaled at just over 18000 lbs with no load on it. Do these signs, which are pretty much all over the place in Michigan, mean 18000 GVWR or 18000 LBS is allowed on the rear axle. Any help is appreciated. Thx.

 

Thank you for replying. So, I am totally confused with this. The reason I am concerned about this is because a co-worker of mine received a frost law ticket on Wattles Road in Troy, Michigan. He drives the same truck as me (26' straight truck single axle). There was a 35% weight reduction in effect on Wattles meaning he could only have about 12,000 lbs on the axle. His ticket read like this: Legal 6,000 lbs front axle, 6,000 lbs rear axle. They scaled him over on the steering axle about 1,500 lbs and over about 4,500 lbs on the rear. Total he was about 6,000 lbs over. He basically had an empty truck with the exception of fuel, dolly, pallet jack, 125 lbs of product load). Like I said in my previous posting I had my truck scaled (18,140lbs) with basically what he had in his truck (pretty much empty). I am just looking for some reassurance that when they lift the frost law posting on Wattles are we still allowed to drive down it with an empty truck at or around 18,000 GVWR. Because to me if for example they pulled him over after they lifted the frost law there are still the 18,000 lb single and 26,000 lb tandem signs on that road. So, hypothetically (if he got pulled over in the summertime on wattles - a class B Road) his ticket would have then read Legal 9,000 lbs on front axle, 9,000 lbs on rear axle. Therefore, he would have been UNDER on the front axle (scaled him at 7,830 lbs) and OVER on the rear axle (scaled him at 10,130 lbs). I understand the frost laws now as does my co-worker but we are not clear on B roads and we are all super sensitive about going down these roads now since he got his ticket, Sorry, I think I may be reading too much into this but we are just now trying to understand weight restriction roads. Unfortunately, our supervisor has been misguiding us.