Bruce has a new rv park. It only has 6 sites with full hook ups. It's just off hwy 80 east of Demopolis. Bout 10 minutes or so from City Landing and 20-25 minutes from Runaway Branch near the bridges you mentioned. He has 1 site open now. some of the other sites have construction workers staying there working on hwy 69 project. They will be around for 5 years or more. He said there are never there in the day time. Bruce owns a good restaurant and bakery in Demopolis.
The rv park in Greensboro is slightly dated, I leave it at that.