Interstate 105 California


Interstate 105 was completed and opened to traffic in October 1993, and it is the last major freeway to open in the Los Angeles metropolitan area. It is the Glenn Anderson Freeway, and it provides an east-west route to serve Los Angeles International Airport and connects Interstate 405 near El Segundo with Interstate 605 in Norwalk. As a multi-modal freeway, Interstate 105 carries a segment of Metrolink in its median, providing rapid transit through South Los Angeles toward Los Angeles International Airport. Large train stations are in place at several interchanges, allowing easy access to bus corridors along city streets.


Linking I-5/10, U.S. 101, and California State Route 10 (former I-110) north of Downtown Los Angeles, Interstate 105 was previously commissioned along the Santa Ana Freeway between 1964 and 1968. I-105, then I-110 and U.S. 101 converged at an exchange east of the Los Angeles River and Mission Road. The original Interstate 105 was subsequently decommissioned, and that portion of the Santa Ana Freeway was folded into U.S. 101.

Interstate 105 was revived several years later as the designation for the proposed Century Freeway. A controveral route, protests against the freeway from adjacent community members arose throughout the 1970s and 1980s. Construction finally commenced on I-105 in 1982. Replacing parallel California 42 (Manchester Avenue), I-105 was originally slated to meet Interstate 5 in Norwalk, but that extension was deleted from plans. The City of Norwalk considered the freeway to be divisive, and many would argue that the effectiveness of Interstate 105 as a primary east-west freeway was undercut by Norwalk's action preventing construction within its boundaries.

Another early propsal outlined extending Interstate 105 east beyond I-5 to California 90 (Richard M. Nixon Freeway) in Orange County. Such a freeway was squashed by public outcry, but the extension remained on the official California state map as a proposed freeway corridor along unconstructed California 90.

Even after it was completed, some problems continued to plague Interstate 105. Since the freeway was constructed below-grade, portions of the roadway sunk between I-605 and I-710. This section of freeway lies between the San Gabriel River (which parallels I-605) and the Los Angeles River (near I-710). As a result of the pavement sinking and cracking, the freeway required premature repairs. A state of California audit report issued in 1999 scolded Caltrans for not adequately testing the soil and groundwater conditions prior to construction.1

For much more on the Century (Glenn Anderson) Freeway, see Interstate 105 (Daniel Faigin) and In Our Path: Interstate 105 (Jeff Gates).

Highway Guides

Western Terminus - Los Angeles International Airport (LAX) - El Segundo, California
Perspective from Interstate 105 west
Westbound Interstate 105 as it passes over Interstate 405/San Diego Freeway. This is the last freeway to freeway interchange for westbound Interstate 105, and the freeway continues for another mile or so past this point before reaching its end at California Street. Photo taken 08/16/03.
The transit corridor that has followed the median of Interstate 105 will shift toward Los Angeles International Airport, and there are no additional transit stops along the rest of westbound Interstate 105. Most traffic remaining on the freeway are accessing the airport and its ancillary development or headed toward El Segundo and the beaches near Vista Del Mar. Photo taken 08/16/03.
Westbound Interstate 105 meets La Cienega Boulevard before merging traffic from Interstate 405/San Diego Freeway reaches the freeway (note the ramps coming in from the right of the picture). Photo taken 08/16/03.
The runways, control tower, and other structures of Los Angeles International Airport are plainly visible from Interstate 105 after it passes Interstate 405. The airport encompasses much of the economic vitality of this section of Los Angeles, including hotels and other traveler amenities. Photo taken 08/16/03.
The next exit along Westbound Interstate 105 is for Nash Street. The main exit for Los Angeles International Airport is the Northbound California 1 interchange. Photo taken 08/16/03.
Westbound Interstate 105 at Northbound California 1. This is the best route to reach Los Angeles International Airport, the busiest airport in Southern California and arguably one of the nation's busiest. Planes are frequently seen flying in tandem as they approach parallel runways from the heights of the Interstate 105 viaduct. Photo taken 08/16/03.
The final exit along westbound Interstate 105 is for Southbound California 1, the Pacific Coast Highway (which follows historic Sepulveda Boulevard near the airport). Photo taken 08/16/03.
On clear days such as this one, the Pacific Ocean shines in the distance, signaling the pending western terminus of westbound Interstate 105. The upcoming traffic signal at California Street indicates the end of the freeway; the ocean lies a mile or two west of here. Photo taken 08/16/03.
The freeway rapidly shifts from a raised viaduct to a surface street as it approaches California Street. Photo taken 08/16/03.
Westbound Interstate 105 finally ends at this traffic signal at California Street. The roadway continues straight ahead as Imperial Highway, a non-state maintained facility, en route to El Segundo and Vista Del Mar. To return to eastbound Interstate 105, one may make a U-turn at this traffic signal. Photo taken 08/16/03.
Perspective from Interstate 105 east
Begin Interstate 105 as it transitions from Imperial Highway onto the freeway. Motorists may choose to take the freeway or follow Imperial Highway with its traffic signals and congestion. Photo taken 08/16/03.
Eastbound Interstate 105 approaching Interstate 405/San Diego Freeway. Interstate 405 leads north to Santa Monica and the Central Valley; it leads south to Long Beach, Orange County, and San Diego. Photo taken 08/16/03.
Eastbound Interstate 105 at Interstate 405/San Diego Freeway. Interstate 105 continues straight ahead to meet three more Interstate highways: Interstate 110/Harbor Freeway, Interstate 710/Long Beach Freeway, and Interstate 605/San Gabriel River Freeway. Photo taken 08/16/03.
Eastern Terminus - Interstate 605 - Norwalk, California
Perspective from Interstate 10 east
Eastbound Interstate 105 approaching end at Interstate 605. Note the end Interstate 105 shield. Photo taken 07/21/01.
This exit from Interstate 105 is available for high occupancy vehicles only via Studebaker Road. All regular traffic must exit onto Interstate 605. Photo taken 07/21/01.
Eastbound Interstate 105 heading under Interstate 605 stack interchange leading to Studebaker Road. Photo taken 07/21/01.
Eastbound Interstate 105 approaching stoplight end at Studebaker Road in Norwalk. Photo taken 07/21/01.
Perspective from Interstate 105 west
Begin Westbound Interstate 105 from Studebaker Road. Photo taken 07/21/01.
Perspective from Interstate 605 north
Northbound Interstate 605 at California 91. California 91 provides a freeway connection east to Interstate 5, thus easing access to Interstate 105 from the south. The next exits are Alondra Boulevard and Rosecrans Avenue, followed by Interstate 105/Glenn Anderson Freeway. Photo taken 08/16/03.
The next three exits along northbound Interstate 605 are Alondra Boulevard (Exit 7B), Rosecrans Avenue (Exit 9A), and Interstate 105/Glenn Anderson Freeway (Exit 9B). Both Alondra Boulevard and Rosecrans Avenue run east-west through the area, passing through Norwalk en route to Bellflower and Paramount, two communities west of Interstate 605. Photo taken 05/13/05.
After the advance sign for Imperial Highway, northbound Interstate 605 meets Rosecrans Avenue, but the two right lanes provide access to westbound Interstate 105. Note that traffic for Imperial Highway is encouraged to remain in the Number 5 lane of the seven available lanes. Photo taken 05/13/05.
The two right lanes along northbound Interstate 605 exit onto westbound Interstate 105. Interstate 605 continues north to meet Interstate 5 near the border between Norwalk and Downey. Continuing along the San Gabriel River, Interstate 605 reaches its end at its junction with Interstate 210/Foothill Freeway in Duarte. Photo taken 05/13/05.
Perspective from Studebaker Road in Norwalk
Only high occupancy vehicles may use the final half-mile stretch of Interstate 105 between Studebaker Road and Interstate 605. Signage for Interstate 105 from Studebaker Road. As such, the traditional freeway entrance signage has been modified to inform motorists that this entrance may only be used by high occupancy vehicles. Photo taken 07/21/01.
This sign, as seen from southbound Studebaker Road in Norwalk just prior to the freeway entrance to Interstate 105, provides detailed information about the rules governing the High Occupancy Vehicle restrictions. Had Interstate 105 been extended east to Interstate 5, this interchange would be markedly different, and it would have ample room for more than just high occupancy vehicles. Photo taken 07/21/01.


  1. "Department of Transportation: Disregarding Early Warnings Has Caused Millions of Dollars to be Spent Correcting Century Freeway Design Flaws." State of California Publication #99113, August 1999.

Page Updated May 22, 2005.

More Info

State California
Mileage 17.32
Cities Los Angeles, Inglewood, South Gate, Downey
Junctions I-405, I-110, I-710, I-605
Source: December 31, 2018 Interstate Route Log and Finders List
I-105 California Annual Average Daily Traffic
Location AADT
Los Angeles Int'l Airport to SR 1 30,500
SR 1 to Douglas St 82,000
Douglas St to I-405 122,000
I-405 to Hawthorne Bl 192,000
Hawthorne Bl to Crenshaw Bl 218,000
Crenshaw Bl to Vermont Av 243,000
Vermont Av to I-110 230,000
I-110 to Central Av 231,000
Central Av to Wilmington Av 222,000
Wilmington Av to Long Beach Bl 224,000
Long Beach Bl to I-710 226,000
I-710 to Paramount Bl 190,000
Paramount Bl to Lakewood Bl 212,000
Lakewood Bl to Bellflower Bl 200,000
Bellflower Bl to I-605 190,000
I-605 to Studebaker Rd 14,100
Source: Caltrans, Traffic Operations Program - Traffic and Vehicle Data Systems [2002]