 In 1937, the road between Atglen and Parkesburg was paved and became a part of PA 572, resulting in a continuous route from PA 372 in Christiana to PA 82 in Coatesville.PA 372 was rerouted to its current eastern terminus at PA 82 in Coatesville in the 1940s, replacing the PA 572 designation between Christiana and Coatesville.On August 21, 1968, the Norman Wood Bridge over the Susquehanna River was opened, and PA 372 was rerouted at Bethesda to head over the bridge to its current western terminus at PA 74.