They keep the water low from late fall until later in the spring. It is considered a flood control lake.
If you are using a boat most of the launches are not usable this time of year.

The last time I checked the limit for crappies is 10 fish maximum. Of the 10 total crappies, only 5 could be over 9 inches.
Sunfish have a minimum length of 7 inches.

Hope this helps.