Overall weight?

If you gave the choice between evenly distributed or not in snow and ice, pack it up on the drives. There's a reason heavy machines are "long-necked" going into jobsites in the winter.

 

Look in the front of your Motor Carrier Atlas, it will list the axle weight limits by state. As an aside, as was mentioned, keep drives heavier than trailer, especially in winter. Many years ago (before 53 footers) I had to pull Raton summit during a heavy early fall snowstorm, it was a 3 stop pickup load in LA/Orange county and there was no mention of weights and appointments were set and met, ended up with 34,000 on the trailer and only about 29,000 on the drives (tandems all the way back) and it was very difficult to drag all that weight up the hill when my drives didn't have proportional traction. I made it, but had my doubts several times. (we didn't carry chains then even if I wanted to chain up)

 

This truck has a 10T front steer axle rating w/ permit in Ca. Tare-6T.

We would load our Drivers heavy on a Log truck for traction off-road and you can pick up 4-5 mph on a pull on the pavement.
Hauling Chips over the Cascades during Snowstorms late at night you'd throw a Snow load on. 44k on the drivers. When your dragging 34T Net on your wagon over the passes during the Winter ya need all the help ya can get.

 

I believe it. I was coming across 20 in Iowa this past winter with stacked step-decks headed to a dealership back in Colorado. Wasn't that heavy, but, all of the weight was at the back since you can't stack the step-decks forward and back like flatbeds. If you've driven 20 across Iowa you know it's nothing but rolling hills. Not long, the longest may be a mile, but, about 6%. Would come down one side of a hill picking up gears and getting a head of steam and let the truck go as far as it could up the slope until the drives slipped and backthrottle till the truck made it to the top. Musta' done that 20 times by nights end.