Vermont Canyon Road

Built: 1920
Location: Between East and West Observatory Road on Vermont Canyon Road in Griffith Park, Los Angeles.

This tunnel cuts off the short loop that passes the Griffith Observatory. It has also been used in a few movies, most notably as the “Tunnel to Toon Town” in “Who Framed Roger Rabbit” and “Back to the Future 2”.

Sepulveda Blvd (old State 7)

Built: 1928
Location: Top of Sepulveda Pass near Skirball Court, Los Angeles

Kanan-Dume Road (multiple tunnels)

Built: 1975 to 1982
Location: Between Truinfo Canyon Road and State Hwy 1

Three sets of tunnels, originally built as single tunnels, were constructed along Kanan-Dume Road during a period of road building funded partly as an “atomic warfare escape route” should Los Angeles be bombed. This, of course, never happened but the region still did benefit from these roadways. Most of the tunnels along Kanan-Dume road are one-lane wide and were twinned in the early 1980’s.

Malibu Canyon Road

Built: 1952
Location: One mile south of Piuma Road

The only tunnel along Malibu Canyon Road, it was built to help alleviate the need for a sharp curve along the roadway.