 MD 309 veers away from the railroad grade, crosses Norwich Creek, and intersects MD 404 Alternate west of Queen Anne before entering Queen Anne's County at the intersection with Park Avenue and Flowers Road.At the intersection with MD 303 (Main Street), MD 309 turns northwest onto Starr Road and intersects MD 404 (Queen Annes Highway).North of Queen Anne, the state highway traverses farmland, meets the southern end of MD 481 (Damsontown Road), and passes through the hamlet of Starr before reaching its northern terminus at MD 213 (Centreville Road) south of Centreville.