 Upon designation, the entire length of PA 16 was paved.By 1941, PA 16 was realigned between Rouzerville and Fountain Dale, with the former alignment now known as Old Route 16, Charmian Road, and Old Waynesboro Road.In 1967, US 30 was rerouted along a bypass north of McConnellsburg, allowing PA 16 to be extended westward along Lincoln Way to its present terminus at US 522.