Interstate 405 California
Following the San Diego Freeway, Interstate 405 is a major highway linking the northern and southern parts of the greater Los Angeles metropolitan area between the San Fernando Valley and Orange County. Always busy, at all hours of the day or night, I-405 is the most direct route between San Diego and Northern California. Additionally, it serves Los Angeles International Airport (LAX) and a number of coastal cities including Costa Mesa, Huntington Beach, Long Beach and Santa Monica.
North End – Los Angeles, CA
South End – Irvine, CA
Mileage – 72.15
Cities – Irvine, Costa Mesa, Huntington Beach, Long Beach, Carson, Los Angeles, Torrance, Hawthorne, Inglewood, Culver City
- Junctions –
Source: December 31, 2018 Interstate Route Log and Finders List
I-405 Annual Average Daily Traffic (AADT)
Source: 2017 Traffic Volumes – Caltrans Traffic Census Program
Interstate 405 replaced the original route of California 7 through the greater Los Angeles area. Portions of California 7 were ugpraded to a freeway in 1957 and later designated as I-405 by 1963. West of I-605, I-405 was completed before 1965. The stretch of freeway east of I-605 followed by 1969.1
North End – San Fernando Valley, Los Angeles, California
Interstate 5 continues south with three lanes plus an HOV lane toward Burbank, Glendale, Downtown Los Angeles, Norwalk and Orange County. Interstate 405 (San Diego Freeway) skirts the western edge of Los Angeles, traversing the Santa Monica Mountains south to Santa Monica, Los Angeles International Airport (LAX), Long Beach and Irvine. Photos taken 07/07/13.
South End – Irvine, California
Truck Bypass Lanes North at
Four lanes lead north along the I-5 Truck Bypass roadway from Lake Forest Drive to the parclo A2 interchange with Bake Parkway. A left exit for Interstate 405 (San Diego Freeway) follows. Photos taken 07/13/09.