Interstate 630 (I-630) is a short but vital auxiliary highway located entirely within Little Rock, Arkansas. Stretching approximately 7 miles, I-630 serves as a crucial east–west connector, linking Interstate 430 on the west side of the city to Interstate 30 and Interstate 40 to the east. Locally known as the Wilbur D. Mills Freeway, this route plays an essential role in managing traffic flow between downtown Little Rock and its residential and suburban areas.
Constructed during the 1960s and 1970s, I-630 was one of the last major urban freeways completed under the original Interstate Highway System. Its development significantly reshaped central Little Rock, as the highway was built through historically significant neighborhoods. Today, it functions as the spine of central Little Rock’s commute, offering access to landmarks like UAMS Medical Center, War Memorial Stadium, and Midtown Little Rock.
The western terminus of I-630 begins at a full interchange with I-430, which circles the western part of the city. Traveling eastward, the freeway crosses several major north-south arteries, including University Avenue, Fair Park Boulevard, and UAMS Boulevard, before descending into downtown Little Rock where it intersects US-70. The route ends at an interchange complex with I-30, offering further connectivity to I-40, US-65, and US-167, making I-630 a critical component of both local travel and regional logistics.