sentences:  SR 121 starts as a four-lane divided highway within the interchange but immediately reduces to two lanes to head north to Max Meadows.The state highway crosses Reed Creek before entering the village, where it reaches its northern terminus at its intersection with SR 1004 (Ayers Street) and SR 1006 (Max Meadows Road) immediately to the north of its grade crossing of Norfolk Southern Railway's Pulaski District rail line and one block south of SR 610 (Peppers Ferry Road).SR 121 was numbered in the 1933 renumbering as an extension of U.S. Route 121 (now US 52 south of Fort Chiswell).