If it's right, it's right, but I can only assume this was some kind of 1800's super highway, and very much the exception to "normal" roads, I can not believe that all roads were this wide all that time ago. Do we know where this road was and what it is like today ?.
If they were so big, an interesting question has to be : Why did roads become more narrow as time went by, if they really were 90 feet wide 200 years ago ?.