There is a new off-leash dog park in the Knoxville area. Carden Farm Dog Park (401 Riverview Dr) is now open in Clinton, TN just outside of Knoxville. There is a separate small dog area, along with a large dog area with agility equipment. There are also walking paths inside the fenced area, as well as outside of it.

Photo Credit: City of Clinton
This dog park joins several others in the Knoxville area.
Charter E. Doyle PetSafe Dog Park at 5100 W. Martin Mill Pike
Victor Ashe Dogwood Dog Park at 4901 Bradshaw Road
Downtown PetSafe Dog Park at 200 S. Central Street
Holston River PetSafe Dog Park at 3300 Holston Hills Road
PetSafe Concord Dog Park at 10901 South Northshore Drive
PetSafe Village Dog Park at 10424 PetSafe Way
PetSafe Emma Jane Walker Memorial Dog Park at 6400 Fountain City Road
PetSafe Plumb Creek Dog Park at 1517 Hickey Road
PetSafe I.C. King Dog Park at 2625 Maryville Pike
PetSafe Pistol Creek Dog Park at 308 Home Ave, Maryville