The High Five Interchange is one of the first five-level stack interchanges built in Dallas, Texas. Located at the junction of the Lyndon B. Johnson Freeway and the Central Expressway, it replaces an antiquated combination interchange constructed in the 1960s.
The High Five Interchange in 2007, viewed from the south
High Five Interchange: US 75 on the bottom level; the two frontage roads on the second; I-635 on the third; and direct connection ramps on the two top levels
High Five Interchange under construction in 2005
A directional interchange, colloquially known as a stack interchange, is a type of grade-separated junction between two controlled-access highways that allows for free-flowing movement to and from all directions of traffic. These interchanges eliminate the problems of weaving, have the highest vehicle capacity, and vehicles travel shorter distances when compared to different types of interchanges.
The Four Level Interchange of Arroyo Seco Parkway and Highway 101, looking northeast, in Los Angeles, California. It was the first stack interchange in the world.
Highway Interchange between Dolphin Expressway and Palmetto Expressway (Dolphin–Palmetto Interchange) in Greater Miami, Florida, United States
Partially used stack interchange over I‑84 in Connecticut
M23 and M25 interchange, UK
