I've been researching this myself, but unfortunately I never have time to fish, so what I've learned has not yet been put into practice.
If you do a forum search on "floyd's fork" you'll see a few good threads on it.
Floyd's Fork Park is not far off Taylorsville Road, and you can access it there. There's also Miles Park off Shelbyville Road, not far at all from the Gene Snyder.
I have been really, really itching to go, but work and home life (and the heat!) are making me bide my time. I've been fishing twice this year, and I hope I can get out a couple more times before the end of summer.