 The state highway passes by Archbishop Curley High School and through the Belair-Edison neighborhood before reaching its northern terminus at US 1 (Belair Road), onto which US 40 Truck turns west.Erdman Avenue continues northwest as a two-lane undivided street along the eastern edge of Clifton Park to MD 147 (Harford Road).MD 151 is a part of the National Highway System as an intermodal connector from I-695 in Dundalk to I-95 in Baltimore and as a principal arterial from I-95 to its northern terminus at US 1 in Baltimore.