Semi turning/backing capability

You have plenty of room IF your truck is the only one sitting at those docks. If however you have to back around another parked tractor with a 53 foot trailer you might not have enough room.

 

Also for a day cab 75 feet is a bit on the long side.

 

As long the space is greater than the length of the truck combination, you can get it to fit.

There is a turning radius imposed by your front steer tires against the tractor. The turning circle is around 55 feet maybe more. It varies because there are a thousand ways to build a tractor.

Under the 5th wheel is a set of your drives. That has it's own turning radius.

Under the trailer is a set of tandems, The turning radius can be made ZERO (Spun in place) or negative.

The three radius is managed by yourself against the available docking space and problems around that specific procedure facing you. (Light posts, hydrants, no posts, vaults, trucks, cars, forklifts, pallets, dump bins, walls, fencing etc etc etc etc etc)

You are going to have a rather long trailer and probably a longer daycab than usual. You did not state that the 110 and 120 feet is in front of the actual dock or in front of the other trucks IN that dock.

 

Actually I think he did. After reading the OPs question I saw that. However the question is will he be the only one using the docks.

 

I interpret it two ways. If HE is the only one present and requires docking sure. Have at it.

But docks plural indicate maybe there is one dock for him to use. Indicating the possibility of other trucks around in their docks too.

 

We do 90 degree backs in truck stops with 20-30ft less room than that...

Piece of cake

 

That day cab must have a big stretch on it to be 75' long with a 53' trailer.

In a perfect world, you should be able to get a 75' truck into a dock or parking spot with as little as 100-125' of space in front. There are a ton of factors determining this though and I'm not sure how many people have done exact calculations. Most skilled drivers do it by "feel" and just get the job done without the math.

 

There is no issue here, just pay attention and put her in there , at least the tip.