Harbor/Pasadena Freeway (US 110) under construction, Downtown Los Angeles, March 21, 1953
The Arroyo Freeway is the first freeway built in the United States, and opened in 1940. This photo shows the connection of the Arroyo Seco (Pasadena) Freeway (entering from the top of the photo) with the rest of the freeway system and the completion of the four-level interchange, the first stack interchange in the world, with the Hollywood Freeway (US 101). Construction of the Harbor Freeway through Downtown is visible, with the already-completed overpasses that exist to today. The Spring Street Courthouse, Union Station, and the USPS Terminal Annex are on the right edge of the image, with City Hall at the far right of the frame. The future site of Dodger Stadium, which opened in 1962, can be seen on the hill in the top-center of the photo.