When were the first roads paved in the US?

The first paved roads in the United States emerged in the early 19th century, with significant advancements occurring in the 1820s and 1830s. One of the earliest examples was the construction of the National Road, which began in 1806 and was completed in sections over the following decades. However, the widespread use of paved roads, particularly using materials like macadam, gained traction in the mid-1800s.