Based on my experience I would have to say no. My 5er is 30' and I told the truth and they gave me a 30' spot. The spot was rough getting into and was barely long enough for my trailer. I have a rear door and I had to tie tree branches back to get through it. There was zero parking in front of the trailer. I had to go against traffic and nose in under the bedroom slide to park. There also wasn't much stagger with the sites behind so we were right on top of them.
I made my reservation when I had a 25 ft. OAL length bumper pull. I called plenty ahead of time and notified them of our equipment change and they said they moved us into a larger site. Maybe this didn't happen.
I hate to be negative but others have posted here that Fishing Bridge is pretty hard nosed when it comes to gear size. I would call ahead and work it out with them just to ease your concern.
Above being said, we enjoyed our trip immensely and I hope you do the same.