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List of road interchanges in the United States

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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

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Arizona

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Mini Stack

Arkansas

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  • 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

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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]

Pregerson Interchange in Los Angeles

Colorado

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Connecticut

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Florida

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Rainbow Interchange on a morning in March 2012 or 2013

Georgia

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Illinois

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Iowa

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  • The "MixMasters" or "Mixers" in the greater Des Moines area:
    • East MixMaster: Eastern terminus of Interstate 235, and intersection of I-35 from the north and I-80 from the east
    • West MixMaster: Western terminus of Interstate 235, and intersection of I-35 to the south and I-80 to the west
  • The “Systems Interchange” in Tiffin/Coralville:
    • Systems Interchange: The intersection of I-80 to the west/east and I-380 to the north/south

Kentucky

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Kennedy Interchange

Massachusetts

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Michigan

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Minnesota

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Missouri

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Grandview Triangle, not located in Grandview.
  • 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

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New Jersey

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New Mexico

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  • Big I, in New Mexico. Its reconstruction was the largest public works project ever in New Mexico

New York

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Looking westbound into the Can of Worms

Pennsylvania

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Rhode Island

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  • Meshanticut Interchange

Texas

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High Five, from the south, in 2007

Virginia

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Wisconsin

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See also

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References

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  1. ^ Schmitt, Angie (July 1, 2014). "8 Monster Interchanges That Blight American Cities". StreetsBlogUSA. Retrieved August 25, 2017.
  2. ^ a b Newell Peacock, Leslie (November 12, 2015). "Elements of 30 Crossing". Arkansas Times. Retrieved December 2, 2019.
  3. ^ Four Level interchange-Los Angeles-Orange County Frwys[permanent dead link]
  4. ^ Pleskot, Kelly. "Study Reveals Most Congested Highways in the U.S." www.motortrend.com. Retrieved February 6, 2019.
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