Tennessee State Route 251 Tennessee State Route 251 State Route 251 (SR 251) is a west–east secondary state highway in Middle Tennessee. SR 251 begins in rural Cheatham County at an intersection with SR 249 (Sams Creek Road/River Road) south of Ashland City. It winds its way southeast along the banks of the Cumberland River as River Road to cross into Davidson County. It continues southeast as River Road Pike as it enters Nashville and has an intersection with US 70/SR 24 (Charlotte Pike), where SR 251 becomes part of Old Hickory Boulevard. It then continues south to have an interchange with I-40 (Exit
Big South Fork of the Cumberland River kayaking occur on the Big South Fork mostly in the Spring season. Available runs range in distance from to , and vary in difficulty between classes I and IV according to the international scale of river difficulty. The most popular runs are those upstream from Leatherwood Ford, ranging from to in distance and between class I and IV in difficulty depending on put-in. The minimum water flow recommended by the National Park Service for rafting is 800 cfs, with a maximum flow of 10,000 cfs for safe rafting. Moving downstream from the confluence to Lake Cumberland, named rapids according to