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
Arizona
Mini Stack
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]
Pregerson Interchange in Los Angeles
Colorado
Connecticut
Florida
Rainbow Interchange on a morning in March 2012 or 2013
Georgia
Illinois
Iowa
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
Kennedy Interchange
Massachusetts
Michigan
Minnesota
Missouri
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
New Jersey
New Mexico
Big I , in New Mexico. Its reconstruction was the largest public works project ever in New Mexico
New York
Looking westbound into the Can of Worms
Pennsylvania
Rhode Island
Texas
High Five , from the south, in 2007
Virginia
Wisconsin
See also
References