The Dosan Ahn Chang Ho Memorial Interchange, also known as the Harbor–Santa Monica Freeway Interchange, is a three-level cloverstack interchange that serves as the junction between the Harbor and Santa Monica Freeways at the southern edge of Downtown Los Angeles, California.

The East Los Angeles Interchange is an interchange complex located in Boyle Heights, Los Angeles, approximately 1 mile east of Downtown Los Angeles. With its southern portion handling over 550,000 vehicles per day, it is the busiest freeway interchange in the world. The northern portion, called the San Bernardino Split, is often considered a separate interchange. Four numbered routes converge at the interchange: Interstate 5 (I-5), I-10, U.S. Route 101 (US 101), and State Route 60 (SR 60), but the freeway segments shift alignments and directions.