Interstate 110 and California State Route 110 (English Wikipedia)

"freeway signs". Ankrom.org. Archived from the original on March 2, 2019. Retrieved January 26, 2013.
"guerrilla public service". www.ankrom.org. Retrieved November 13, 2022.

archive.org (Global: 6^th place; English: 6^th place)

Dennis, T.H. (August 1934). "State Routes Will Be Numbered and Marked with Distinctive Bear Signs". California Highways and Public Works. 11 (8): 20–21, 32. ISSN 0008-1159 – via Archive.org.

books.google.com (Global: 3^rd place; English: 3^rd place)

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.

ca.gov (Global: 352^nd place; English: 167^th place)

dot.ca.gov

California Department of Transportation. "State Truck Route List". Sacramento: California Department of Transportation. Archived from the original (XLS file) on September 5, 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.
Historic American Engineering Record (J. Philip Gruen and Portia Lee), Arroyo Seco Parkway (HAER No. CA-265) written historical and descriptive data, August 1999, pp. 34, 57, 65, 67 Archived October 31, 2007, at the Wayback Machine
California Department of Transportation, California Numbered Exit Uniform System, I-110 Archived October 2, 2017, at the Wayback Machine, accessed January 2008
"2014 Named Freeways, Highways, Structures and Other Appurtenances in California" (PDF). California Department of Transportation. Archived from the original (PDF) on July 1, 2015. Retrieved June 20, 2015.

clerk.assembly.ca.gov

California State Assembly. "An act to amend sections 2, 3 and 5 and to add two sections to be numbered 6 and 7 to an act entitled 'An act to provide for the acquisition of rights of way for and the construction, maintenance..." Fiftieth Session of the Legislature. Statutes of California. State of California. Ch. 767 p. 2040.: "San Pedro to State Highway Route 9 near La Canada via Figueroa Street."
California State Assembly. "An act to establish a Streets and Highways Code, thereby consolidating and revising the law relating to public ways and all appurtenances thereto, and to repeal certain acts and parts of acts specified herein". Fifty-first Session of the Legislature. Statutes of California. State of California. Ch. 29 p. 285.: "Route 165 is from San Pedro to Route 9 near La Canada via Figueroa Street."
California State Assembly. "An act...relating to State highways". Fifty-first Session of the Legislature. Statutes of California. State of California. Ch. 274 p. 959, 285.: "Route 165 is from San Pedro to Route 9 near La Canada via Figueroa Street and Linda Vista Avenue."
California State Assembly. "An act to add Sections 280, 281, 282, and 283 to the Streets and Highways Code, relating to highways". 1993–1994 Session of the Legislature. Statutes of California. State of California. Ch. 179.

leginfo.legislature.ca.gov

"Section 410". California Streets and Highways Code. Sacramento: California Office of Legislative Counsel. Retrieved August 17, 2025.
"Article 2 of Chapter 2 of Division 1". California Streets and Highways Code. Sacramento: California Office of Legislative Counsel. Retrieved February 6, 2019.

traffic-counts.dot.ca.gov

California Department of Transportation, All Traffic Volumes on CSHS Archived July 21, 2011, at the Wayback Machine, 2006

cahighways.org (Global: low place; English: low place)

California Highways: www.cahighways.org. Interstate 110.
Correspondence between the Division of Highways and American Association of State Highway Officials, transcribed at California Highways: State Route 66
Los Angeles County Regional Planning District, Master Plan of Metropolitan Los Angeles Freeways, adopted August 6, 1947
"California Highways (www.cahighways.org): Routes 105 through 112". www.cahighways.org. Retrieved January 26, 2013.

dailybreeze.com (Global: low place; English: 5,183^rd place)

"Reconfigured 110 Freeway ramp in Wilmington reopens". Daily Breeze. June 20, 2016. Retrieved April 8, 2023.

dailynews.com (Global: 2,677^th place; English: 1,369^th place)

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.

dot.gov (Global: 1,620^th place; English: 841^st place)

fhwa.dot.gov

Federal Highway Administration (March 25, 2015). National Highway System: Los Angeles–Long Beach–Anaheim, CA (PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration. Retrieved October 1, 2017.
"Table 1: Auxiliary Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways". FHWA Route Log and Finder List. Federal Highway Administration. January 2025. Retrieved August 17, 2025.
Natzke, Stefan; Neathery, Mike & Adderly, Kevin (June 20, 2012). "What is the National Highway System?". National Highway System. Washington, DC: Federal Highway Administration. Retrieved July 1, 2012.
Richard F. Weingroff, U.S. 6: The Grand Army of the Republic Highway
U.S. Department of Transportation, U.S. Transportation Secretary Mineta Names 36 New National Scenic Byways, All-American Roads, June 13, 2002

jalopnik.com (Global: 3,339^th place; English: 2,019^th place)

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.

kcet.org (Global: 8,103^rd place; English: 4,453^rd place)

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.

kpcc.org (Global: low place; English: low place)

"LA's MLK Boulevard got its name because of another King". 89.3 KPCC. January 15, 2018. Retrieved April 8, 2023.

latimes.com (Global: 32^nd place; English: 21^st place)

Goodman, Adrianne (February 3, 1989). "Saving a Street : Gardena's New Beautification Project Aims to Spruce Up Once-Thriving Boulevard". Los Angeles Times. Retrieved April 8, 2023.

laweekly.com (Global: 1,453^rd place; English: 778^th place)

Stephens, Craig (December 30, 2009). "RICHARD ANKROM's Freeway Art: Caltrans Buys Into the Prank". LA Weekly. Archived from the original on September 23, 2013. Retrieved June 28, 2013.

metroexpresslanes.net (Global: low place; English: low place)

"Using Metro ExpressLanes". www.metroexpresslanes.net. Los Angeles Metro. Retrieved January 1, 2026.

nps.gov (Global: 79^th place; English: 40^th place)

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.

socalregion.com (Global: low place; English: low place)

H.M. Gousha Company, Los Angeles and Vicinity, 1935
H.M. Gousha Company, Los Angeles and Vicinity, 1939

thedrive.com (Global: 2,470^th place; English: 1,575^th place)

Stumpf, Rob (July 28, 2023). "How an Artist Helped Millions of Drivers With a Counterfeit Highway Sign". The Drive. Retrieved July 13, 2024.

trucktrend.com (Global: low place; English: low place)

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.

web.archive.org (Global: 1^st place; English: 1^st place)

California Department of Transportation. "State Truck Route List". Sacramento: California Department of Transportation. Archived from the original (XLS file) on September 5, 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.
Historic American Engineering Record (J. Philip Gruen and Portia Lee), Arroyo Seco Parkway (HAER No. CA-265) written historical and descriptive data, August 1999, pp. 34, 57, 65, 67 Archived October 31, 2007, at the Wayback Machine
Stephens, Craig (December 30, 2009). "RICHARD ANKROM's Freeway Art: Caltrans Buys Into the Prank". LA Weekly. Archived from the original on September 23, 2013. Retrieved June 28, 2013.
"freeway signs". Ankrom.org. Archived from the original on March 2, 2019. Retrieved January 26, 2013.
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 Archived October 2, 2017, at the Wayback Machine, accessed January 2008
"2014 Named Freeways, Highways, Structures and Other Appurtenances in California" (PDF). California Department of Transportation. Archived from the original (PDF) on July 1, 2015. Retrieved June 20, 2015.

worldcat.org (Global: 4^th place; English: 4^th place)

search.worldcat.org

Dennis, T.H. (August 1934). "State Routes Will Be Numbered and Marked with Distinctive Bear Signs". California Highways and Public Works. 11 (8): 20–21, 32. ISSN 0008-1159 – via Archive.org.

Interstate 110 and California State Route 110 (English Wikipedia)

ankrom.org (Global: low place; English: low place)

archive.org (Global: 6th place; English: 6th place)

books.google.com (Global: 3rd place; English: 3rd place)

ca.gov (Global: 352nd place; English: 167th place)

dot.ca.gov

clerk.assembly.ca.gov

leginfo.legislature.ca.gov

traffic-counts.dot.ca.gov

cahighways.org (Global: low place; English: low place)

dailybreeze.com (Global: low place; English: 5,183rd place)

dailynews.com (Global: 2,677th place; English: 1,369th place)

dot.gov (Global: 1,620th place; English: 841st place)

fhwa.dot.gov

jalopnik.com (Global: 3,339th place; English: 2,019th place)

kcet.org (Global: 8,103rd place; English: 4,453rd place)

kpcc.org (Global: low place; English: low place)

latimes.com (Global: 32nd place; English: 21st place)

laweekly.com (Global: 1,453rd place; English: 778th place)

metroexpresslanes.net (Global: low place; English: low place)

nps.gov (Global: 79th place; English: 40th place)

socalregion.com (Global: low place; English: low place)

thedrive.com (Global: 2,470th place; English: 1,575th place)

trucktrend.com (Global: low place; English: low place)

web.archive.org (Global: 1st place; English: 1st place)

worldcat.org (Global: 4th place; English: 4th place)

search.worldcat.org

archive.org (Global: 6^th place; English: 6^th place)

books.google.com (Global: 3^rd place; English: 3^rd place)

ca.gov (Global: 352^nd place; English: 167^th place)

dailybreeze.com (Global: low place; English: 5,183^rd place)

dailynews.com (Global: 2,677^th place; English: 1,369^th place)

dot.gov (Global: 1,620^th place; English: 841^st place)

jalopnik.com (Global: 3,339^th place; English: 2,019^th place)

kcet.org (Global: 8,103^rd place; English: 4,453^rd place)

latimes.com (Global: 32^nd place; English: 21^st place)

laweekly.com (Global: 1,453^rd place; English: 778^th place)

nps.gov (Global: 79^th place; English: 40^th place)

thedrive.com (Global: 2,470^th place; English: 1,575^th place)

web.archive.org (Global: 1^st place; English: 1^st place)

worldcat.org (Global: 4^th place; English: 4^th place)