If you are referring to what is also know as the "bowstring" method, you will not likely be able to use that in Florida. As the previous post said, Contact Florida DOT, but also contact the local jurisdictions including the stormwater managment district you'll be working in to find...
Do a web search....drainage is important, but you dont want so much slope that the field becomes unplayable. I found a quick reference at http://www.uky.edu/Agriculture/ukturf/Athletic%20Field%20Pubs/AthFConstruc.PDF
that suggests a 10" to 18" crown in the middle of the field.
If the...