Why are some container trailers axels split?

I don't remember seeing spread axle containers but then I don't really pay attention to them. But having spread axles allows 40,000 lbs on the rear axles as oppossed to 34,000 lbs with tandem axles. Still have the 80,000 lbs limit but it allows the rear to be loaded heavier.

 

They are lucky if they get to keep the same chassis for more than one trip let alone the same can.

 

Constantly changing cans. May keep chassis from one trip to forever. Some chasis go up to 5 axles.

 

Not in GA! 3 axles at the most here.

 

Wa., Or., Id. run 4 axle chassis plus a stinger pulled by 4 axle tractor. 2 and 3 axle chasis are rare around here. Are they running 4 axle tractors pulling chasis in Ga.?

 

Nope. You guys are allowed to pull heavier wait up there. Something to do with the port and Canadian border. Not really sure how it works. Haven't spent much time over there. Down here it's all 3 axle trucks and 2 or 3 axle chassis. And the 3 axle chassis are pretty rare.

 

In GA the container moving companies are kinda hard to find. Look under dryage or cartage companies or something similar to that. There are some larger outfits, but around here its alot of the smaller companies and their equipment is old and on it's last leg. I was trying to find some of them as it seems alot of containers go from Savannah Port to Atlanta and I am located just south of ATL. Just have to look up the company names on the sides of the trucks.