List of road interchanges in the United States
The following list contains the most notable road interchanges within the United States divided by each state, which are mainly part of the national Interstate Highway System and are all freeways intersecting with each other at a junction.
Some of the biggest ones are: Kennedy Interchange (I-64/I-65/I-71) in Louisville, Kentucky; the Marquette Interchange (I-94/I-43/I-794) and the $1.8 billion Zoo Interchange both in Milwaukee, Wisconsin; the Pregerson Interchange (I-110/I-105) in Los Angeles; and the Circle Interchange (I-90/I-94/I-290) in Chicago.[1]
Alabama[]
- Malfunction Junction at I-20/I-59 and I-65
Arizona[]
Arkansas[]
- Big Rock Interchange, the junction of I-430 and I-630, Little Rock, Arkansas
- North Terminal Interchange, the junction of I-40 and I-30, Little Rock, Arkansas[2]
- South Terminal Interchange, the junction of I-30, I-440 and I-530, Little Rock, Arkansas[2]
California[]
The first stack interchange in the world was the Four Level Interchange (renamed the Bill Keene Memorial Interchange), built in Los Angeles, California, and completed in 1949, at the junction of U.S. Route 101 and State Route 110.[3] Since then, the California Department of Transportation (Caltrans) has built at least eight more four-level stacks throughout the state of California, as well as a larger number of three-level stack/cloverleaf hybrids (where the least-used left-turning ramp is built as a cloverleaf-like 270-degree loop).
Despite the construction of interchanges smoothing flow, 11 of the top 30 most congested stretches of highway in the U.S. are in Los Angeles.[4]
- Alemany Maze
- Dosan Ahn Chang Ho Memorial Interchange
- East Los Angeles Interchange
- El Toro Y, at convergence of I-405 with I-5, in El Toro, California. This was thought to be one of the most congested interchanges in the world at one time.
- Four Level Interchange (1949), US 101 & SR 110
- Hollywood Split
- Joe Colla Interchange
- Judge Harry Pregerson Interchange, I-110 and I-105
- Kellogg Interchange
- MacArthur Maze
- Newhall Pass interchange
- Orange Crush interchange
- The Fishhook, CA-1 and CA-17 in Santa Cruz
- West Bakersfield Interchange
- Wheeler Ridge Interchange
Colorado[]
Connecticut[]
- New Haven Mixmaster (multi-level interchange between Interstate 95/Connecticut Turnpike, Interstate 91, and Route 34 in New Haven, Connecticut)
- The Stack (4-level stack interchange between Interstate 84 and Route 9 in Farmington, Connecticut)
- Waterbury Mixmaster (multi-level interchange between Interstate 84 and Route 8 in Waterbury, Connecticut)
Florida[]
Georgia[]
- Cobb Cloverleaf
- Tom Moreland Interchange (Spaghetti Junction)
Illinois[]
- Jane Byrne Interchange, also known as the "Circle Interchange"
Iowa[]
- The "MixMasters" or "Mixers" in the greater Des Moines area:
- : Eastern terminus of Interstate 235, and intersection of I-35 from the north and I-80 from the east
- : Western terminus of Interstate 235, and intersection of I-35 to the south and I-80 to the west
Kentucky[]
- Kennedy Interchange, also known as "Spaghetti Junction"
Massachusetts[]
Michigan[]
- Ford–Lodge interchange, the first full freeway-to-freeway interchange in the United States, completed in 1955
Minnesota[]
- Can of Worms (Minnesota interchange)
Missouri[]
- Grandview Triangle. After its reconstruction it handles 250,000 cars per day (in 2016), and is believed to be capable of handling 400,000 per day.
Nevada[]
New Jersey[]
- Newark Airport Interchange, the junction of I-95 (New Jersey Turnpike), I-78 (Newark Bay Extension), US 1/9 (US 1 and US 9), US 22, and Route 21 at the Newark Liberty International Airport
New Mexico[]
- Big I, in New Mexico. Its reconstruction was the largest public works project ever in New Mexico
New York[]
- Bruckner Interchange
- Can of Worms (interchange), Rochester, New York
- Kew Gardens Interchange, Queens, New York City, serving nearly 600,000 vehicles daily.
- Oakdale Merge
Pennsylvania[]
- Pennsylvania Turnpike/Interstate 95 Interchange
Rhode Island[]
- Meshanticut Interchange
Texas[]
Virginia[]
Wisconsin[]
See also[]
References[]
- ^ Schmitt, Angie (July 1, 2014). "8 Monster Interchanges That Blight American Cities". StreetsBlogUSA. Retrieved August 25, 2017.
- ^ a b Newell Peacock, Leslie (November 12, 2015). "Elements of 30 Crossing". Arkansas Times. Retrieved December 2, 2019.
- ^ Four Level interchange-Los Angeles-Orange County Frwys[permanent dead link]
- ^ Pleskot, Kelly. "Study Reveals Most Congested Highways in the U.S." www.motortrend.com. Retrieved February 6, 2019.
- Road interchanges in the United States