Interstate 110 and State Route 110 (California)
Interstate 110 (I-110) and State Route 110 (SR 110) are two connected highways in Los Angeles County, California. They go between the Port of Los Angeles and Pasadena, going through Downtown Los Angeles. Between the Port of L.A. and Interstate 10, the road is called the Interstate 10. It is called California State Route 110 between Interstate 10 and Pasadena. The whole route is also called the Harbor Freeway. The route is about 32 miles (51 km) long.
I-110 and SR 110 highlighted in red
|Defined by S&HC § 410|
|Maintained by Caltrans|
|Length||31.82 mi (51.21 km)|
|Arroyo Seco Parkway|
|Restrictions||No trucks over 3 tons north of exit 24A|
|South end||SR 47 in San Pedro|
|North end||Glenarm Street in Pasadena|
Except when a letter is put before it, postmiles were measured on the road as it was in 1964, based on how it was at the time, and do not necessarily show the current mileage. R reflects a change in the route since then, M indicates a second change, L refers an overlap because of a correction or change, and T indicates postmiles that were temporary (for a full list of prefixes, see the list of postmile definitions). Segments that have not been built or are now controlled locally may be left out. The entire route is in Los Angeles County.
|San Pedro||R0.93||Gaffey Street – San Pedro||Southern terminus of I-110; southern end of Harbor Freeway|
|R0.93||1A||SR 47 (Vincent Thomas Bridge) – Terminal Island, Long Beach||SR 47 exit 1B|
|R1.23||1B||Channel Street / Pacific Avenue||No southbound entrance|
|Wilmington||2.77||3A||Harry Bridges Boulevard|
|4.06||4||SR 1 (Pacific Coast Highway) – Torrance, Beach Cities|
|West Carson||5.45||5||Sepulveda Boulevard|
|6.52||7A||223rd Street||Northbound exit is via exit 7|
|7.02||7B||Carson Street||Signed as exit 7 northbound|
|Carson–Los Angeles line||8.78–|
|9||I-405 (San Diego Freeway) / 190th Street – Santa Monica, Long Beach||190th St. not signed northbound; I-405 is former SR 7; I-405 exit 37 northbound, 37A southbound|
|Los Angeles||9.87||10||SR 91 (Gardena Freeway) – Beach Cities, Riverside||Signed as exits 10A (east) and 10B (west) northbound; SR 91 exit 6|
|||—||I-110 Express Lanes – Harbor Gateway Transit Center||Southbound exit and northbound entrance|
|11.24||11||Redondo Beach Boulevard|
|12.90||13||El Segundo Boulevard|
|13.82||14A||I-105 (Glenn Anderson Freeway) – Norwalk, LAX Airport||Signed as exits 14A (east) and 14B (west) northbound; I-105 exit 7B|
|||—||I-105 east||Southbound exit and northbound entrance for Express Lanes only|
|||—||I-105 west – LAX Airport||Southbound exit and northbound entrance for Express Lanes only|
|14.97||15||Century Boulevard||No southbound entrance|
|15.98||16||Manchester Avenue||Former SR 42|
|||I-110 Express Lanes / 39th Street – Coliseum / Adams Boulevard / Figueroa Street||Last access point from main northbound I-110 lanes|
|18.50||19A||51st Street||Southbound exit and northbound entrance|
|19.00||19B||Vernon Avenue||Signed as exit 19 northbound|
|19.50||20A||Martin Luther King Jr. Boulevard – Los Angeles Memorial Coliseum, Exposition Park, Banc of California Stadium|
|||I-110 Express Lanes||North end of Express Lanes; first access point from main southbound I-110 lanes|
|20.00||20B||37th Street / Exposition Boulevard|
|21.44||21||I-10 (Santa Monica Freeway) / Washington Boulevard – Santa Monica, San Bernardino||Northern terminus of I-110; southern terminus of SR 110; no northbound exit to Washington Boulevard; I-10 exits 13A-B|
|22A||Pico Boulevard / Olympic Boulevard – Downtown Los Angeles||Northbound exit is part of exit 21|
|22.36||22B||9th Street / 8th Street – Downtown Los Angeles||Signed as exit 22 northbound|
|22.83||23A||6th Street / Wilshire Boulevard|
|23.73||24A||US 101 to I-5 south (Santa Ana Freeway) / I-10 east (San Bernardino Freeway) / SR 60 east (Pomona Freeway) – Hollywood, Santa Ana, San Bernardino, Pomona||Four Level Interchange; northern end of Harbor Freeway; southern end of Arroyo Seco Parkway; US 101 exit 3 northbound, 3B southbound|
|23.96||24B||Sunset Boulevard||Southbound exit and northbound entrance|
|24.55||24C||Hill Street – Chinatown, Civic Center||No southbound entrance; signed as exit 24B northbound; left exit southbound|
|24.73||24D||Stadium Way – Dodger Stadium||Signed as exit 24B northbound|
|25.04||25||Solano Avenue / Academy Road|
|||Figueroa Street Tunnels; northbound only|
|25.48||26A||I-5 north (Golden State Freeway) – Sacramento||Northbound left exit and southbound entrance; I-5 exit 137B southbound|
|25.78||26B||Figueroa Street||Northbound left exit and southbound entrance; former SR 159|
|25.91||26A||Avenue 26||Southbound exit and northbound entrance; former SR 163|
|26.12||26B||I-5 (Golden State Freeway) – Santa Ana||Southbound exit and northbound entrance; I-5 exit 137B northbound, 137A southbound|
|29.28||30A||Marmion Way / Avenue 64||Northbound exit and southbound entrance|
|29.50||30||York Boulevard||Southbound exit and entrance|
|30.10||30B||Bridewell Street||Northbound exit only|
|South Pasadena||30.59||31A||Orange Grove Avenue|
|31.17||31B||Fair Oaks Avenue – South Pasadena||No northbound entrance|
|Pasadena||31.91||Glenarm Street||At-grade intersection; northern terminus of SR 110; northern end of Arroyo Seco Parkway|
|31.91||Arroyo Parkway||Continuation beyond Glenarm Street|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi|
- California Department of Transportation. "State Truck Route List". Sacramento: California Department of Transportation. Archived from the original (XLS file) on June 30, 2015. Retrieved June 30, 2015.
- 2007 Named Freeways, Highways, Structures and Other Appurtenances in California (PDF). Caltrans. p. 71. Archived from the original (PDF) on October 14, 2012. Retrieved March 27, 2007.
- Ryan, Colin (April 9, 2010). "America's First Freeway: The Arroyo Seco Parkway, aka, the 110". Truck Trend. El Segundo, California: Extreme Venturs, LLC. Retrieved April 10, 2018.
"The History of the Arroyo Seco Parkway". Departures. KCET. October 24, 2011. Retrieved April 10, 2010.
Kevin Break (2015). Bridges of Downtown Los Angeles. Arcadia Publishing. p. 94. ISBN 978-1-4671-3353-1.
Johnson, Davey G. (June 29, 2006). "America's First Freeway: The 110". Jalopnik. Gizmodo Media. Retrieved April 10, 2018.
National Park Service's Heritage Education Services. "Arroyo Seco Parkway". Route 66. United States Department of the Interior. Retrieved April 10, 2018.
Sproul, Suzanne (August 28, 2017). "Arroyo Seco Parkway, California's first freeway, celebrates 75 years". Los Angeles Daily News. Retrieved April 10, 2018.
The Arroyo Seco Parkway, once called the Pasadena Freeway (110 Freeway) before the name was changed back in 2010, is considered by many to be the first freeway in the state and in the nation.
Rick Thomas (2008). The Arroyo Seco. Arcadia Publishing. ISBN 978-0-7385-5608-6.
- California Department of Transportation (July 2007). "Log of Bridges on State Highways". Sacramento: California Department of Transportation.
- California Department of Transportation, All Traffic Volumes on CSHS Archived July 21, 2011, at the Wayback Machine, 2006
- California Department of Transportation, California Numbered Exit Uniform System, I-110, accessed January 2008
- "2014 Named Freeways, Highways, Structures and Other Appurtenances in California" (PDF). California Department of Transportation. Retrieved June 20, 2015.