I-105

About I-105

Also known as Century Freeway, Glenn M. Anderson Freeway.

Interstate 105 is a three-digit auxiliary route of Interstate 5. As an auxiliary number it carries a single prefix digit ahead of its parent number, and because that prefix is an odd digit, the number signals a spur or connector rather than a full loop or bypass. The most prominent I-105 is in Los Angeles County, California, where it runs east to west across the southern part of the metropolitan area for about 17 miles between State Route 1 near Los Angeles International Airport in El Segundo and Interstate 605 in Norwalk.

The Los Angeles route is officially the Glenn M. Anderson Freeway and is universally known as the Century Freeway. It crosses several major north-south freeways in its short run, providing a direct connector from the airport district eastward across nine cities in the county. The Green Line light rail of the regional transit system runs in the median of the freeway for much of its length, a defining design feature of the corridor.

Because the number 105 is reused, shorter or lesser-known I-105 segments have existed elsewhere, but the California Century Freeway is by far the best known instance and the one most associated with the number.

State-by-state mileage

State	Miles
California	18.8
Total	18.8

History

The Century Freeway was part of a Los Angeles freeway master plan dating to the 1950s and 1960s, but community opposition, litigation, and disputes over displacement and housing delayed it for decades. It finally opened in October 1993, making it the last major freeway built in the Los Angeles metropolitan area, and its construction included provisions for the rail line that runs down its center.

Major cities and places

Notable features

• Median light rail line serving the Los Angeles area
• Connector to Los Angeles International Airport

Did you know

• It was the last major freeway to open in the Los Angeles area.
• The route opened in October 1993 after decades of delay.
• A light rail line runs in the freeway median for much of its length.
• Its odd prefix digit marks it as a spur or connector rather than a loop.