 In 1859, this road became a turnpike known as the Douglassville and Yellow House Turnpike, which existed until 1897.When routes were legislated in Pennsylvania in 1911, present-day PA 662 was not legislated as part of a route.By 1928, what would become PA 662 was paved between Douglassville and Yellow House, in the Oley area, and between Pricetown and Moselem Springs.