The road begins at US 9 in the village of Rhinebeck, which is above sea level. To the south of here is a park, a small lake, and a cemetery. At this point, the Dutchess County Fairgrounds are north of Route 308. The highway goes to the east, and is called East Market Street. It soon leaves Rhinebeck, while it runs next to a small creek sometimes known as the Landsman Kill.