howdy 

I am going to  camping at the Heart Bar Campground near Big Bear with a 30 foot 5th wheel TT and I have a double wide campsite 

Am I going to have any issues maneuvering  into the spot? 

Welcome to the Escapee forums!  If you mean the Forest Service campground near Big Bear, CA then you should have no problems. Check out the reviews of the campground on this link. 

thanks Kirk for the warm welcome, yes that is the campground I am referring to

I just wanted to post this is a PA

so I went to that campground and maneuvering in and out of there is terrible I mean really terrible. Ive never had to maneuver through such a tight space 

they have railroad tracks posts littered (installed) throughout the campground the clearances on each side was less then an inch 

Sometimes a campground, especially State and Federal Parks, will say you can fit in a camping site but the road around the campground to the site is too curved and has trees and posts and other barriers and makes the drive to the site non passable.