Tennessee State Route 251 199) before entering Bellevue, where it comes to an end at an intersection with US 70S/SR 1 and Old Hickory Boulevard continues southward. 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
Big South Fork of the Cumberland River a flow of . Around half of the Big South Fork's annual streamflow occurs during the months of January through March, and the lowest streamflow typically occurs during September and October. Along the river basin, water drops from an maximum original elevation of above sea level at Peter's Bridge on the Clear Fork, to where the waters meet the Cumberland. Between the confluence of the New River and Clear Fork, and Leatherwood Ford the river has an average gradient across of 20 feet per mile (fpm), and a maximum gradient of 40 fpm. Major tributaries of the Big South Fork