events

The Four Level Interchange, first stack interchange in the world opened in Los Angeles.

Historical image related to The Four Level Interchange, first stack interchange in the world opened in Los Angeles. from September 22, 1953

Four Level Interchange

Stack interchange in Los Angeles

The Four Level Interchange is the first stack interchange in the world. Completed in 1949 and fully opened in 1953 at the northern edge of Downtown Los Angeles, California, United States, it connects U.S. Route 101 to State Route 110. In 2006, the interchange was officially…
Source: Wikipedia (CC BY-SA)

Stack interchange

Type of freeway interchange

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,…
Source: Wikipedia (CC BY-SA)

Los Angeles

Most populous city in California, United States

Los Angeles, often referred to by its initials L.A., is the most populous city in the U.S. state of California, and the commercial, financial, and cultural center of Southern California. With an estimated 3.88 million residents within the city limits as of 2024, it is the…
Source: Wikipedia (CC BY-SA)

September 22

Day of the year

September 22 is the 265th day of the year in the Gregorian calendar; 100 days remain until the end of the year.
Source: Wikipedia (CC BY-SA)