When were Philadelphia streets paved?

Philadelphia began paving its streets in the early 19th century, with significant advancements occurring around the 1820s and 1830s. The city initially used wooden blocks before transitioning to cobblestones and later to asphalt in the late 19th century. These improvements were part of broader urbanization efforts as the city grew in population and economic activity. Over the years, street paving in Philadelphia has continued to evolve to meet modern needs.