 At this time, the entire route was unpaved.PA 252 was designated by 1928 to run from PA 320 north of Chester north to US 122/PA 52 (now US 202) in King of Prussia, following its current alignment north to Wyola, where it turned northeast and intersected US 30 in Wayne before continuing north to King of Prussia.Between Wyola and King of Prussia, PA 252 followed what is now unnumbered portions of St. Davids Road, Brooke Road, Wayne Avenue, Radnor Road, Croton Road, and King of Prussia Road.