 At this time, the entire route was paved.By 1928, the current alignment of PA 252 was an unnumbered road between Wyola and Paoli, a part of US 122 between Paoli and Valley Forge Road, and a part of PA 83 north of there.The northern terminus of PA 252 was moved to PA 23 (Gulph Road) along Croton Road in King of Prussia by 1960 after the original alignment to US 202 along King of Prussia Road was severed by the construction of I-80S/PA 43 (Schuylkill Expressway, now I-76).