Grenada landing is the only ramp that I know of that has a dock! but it all depends on how much rain they get it may be setting on the bank or underwater!
some of the ramps are North Graysport, Choctaw,Turkey creek,South Abutment, North Abutment, Grenada lake boat ramp,!
all the ramp that I’ve used are solid concrete but you have to beach your boat or pull back up to the concrete or rocks to access land!