Beyond SR 1, the freeway is owned by the City of Long Beach to its end at Willow Street. For a time, this segment had the unusual unsigned designation of State Route 103U, with the U signifying "un-relinquished", because the state legislature had removed this segment from the state highway system in 1983 but the City of Long Beach did not agree to take it over until 2000.[3] The portion is still signed as part of SR 103 instead of SR 103U.
The state route begins at Interstate 710 in Long Beach as a concurrency with SR 47. It then begins as a freeway, whence it follows the Schuyler Heim Bridge over the Cerritos Channel, entering the city of Los Angeles midway through the bridge. It then leaves SR 47 and reenters Long Beach, where it meets SR 1. The SR 103 state highway designation officially ends at SR 1, but the freeway, now controlled by the City of Long Beach from this point on, continues north and ends at an intersection with Willow Street.
The entire Terminal Island Freeway was once part of State Route 47, and was to continue north to Interstate 10 near downtown Los Angeles. SR 47 was redefined in 1983 to split from the freeway north of the Schuyler Heim Bridge, and the part from SR 47 to Willow Street became SR 103. The part north of SR 1 was later removed from the legal definition, existing for a time as State Route 103U - U for unrelinquished - before it was traded on August 25, 2000, with the city of Long Beach for Interstate 710 from SR 1 south to Ocean Boulevard.[3] The city has since explored plans to remove this portion of the freeway.[2]
Exit list
Except where prefixed with a letter, postmiles were measured on the road as it was in 1964, based on the alignment that existed at the time, and do not necessarily reflect current mileage. R reflects a realignment in the route since then, M indicates a second realignment, L refers to an overlap due to a correction or change, and T indicates postmiles classified as temporary (for a full list of prefixes, see California postmile § Official postmile definitions).[7] Segments that remain unconstructed or have been relinquished to local control may be omitted. The entire route is in Los Angeles County.
^"Article 2 of Chapter 2 of Division 1". California Streets and Highways Code. Sacramento: California Office of Legislative Counsel. Retrieved February 6, 2019.
^Federal Highway Administration (March 25, 2015). National Highway System: Los Angeles, CA(PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration. Retrieved October 1, 2017.
^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.
^ abCalifornia 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.