Re: Hello From Central MD
Remember that just because it's a river and not a little creek everything will be basically the same. Unless it is a deep single channel that gives few clues about what lies beneath you just break it into small streams and fish accordingly. Don't get caught up with the idea that just because it's 100' wide you have to be casting 80 to cover it. A good 5 or 6 rod in 9'6" sounds logical since you have a small water set now. The additional rod length and line weight will make line control while fishing streamers or dry flies easy for you.
My best advice since I don't know the place you'll be fishing is break it into pocket waters and work them like you would a small brook. Learn to spot fish and be prepared to stand around while you figure out where to fish. being public water with plenty of fishermen anything that has managed to survive for a year or 2 will be very well trained.