The Full Wiki

California State Route 110: Wikis


Note: Many of our articles have direct quotes from sources you can cite, within the Wikipedia article! This article doesn't yet, but we're working on it! See more info or our list of citable articles.


From Wikipedia, the free encyclopedia

I-110 (CA).svgCalifornia 110.svg
Interstate 110, State Route 110
Auxiliary route of the Interstate Highway System
Harbor Freeway, Pasadena Freeway
Defined by S&HC § 410, maintained by Caltrans
Length: 31.819 mi[1] (51.21 km)
History: Highway in 1930s, number in 1964 (SR 11), 1978-1981 as an interstate [2]
South end: 9th Street, Gaffey Street in San Pedro
I-405 in Carson
I-10 in Los Angeles
North end: Glenarm Street, Arroyo Parkway in Pasadena
State highways in California (list - pre-1964)
< SR 109 SR 111 >
History - Unconstructed - Deleted - Freeway - Scenic

Route 110, consisted of two segments of State Route 110 (SR 110) joined by Interstate 110 (I-110), is a state highway in the Los Angeles area of the U.S. state of California, mostly built to freeway standards. The entire length of I-110 (which ends at I-10), as well as SR 110 south of the Four Level Interchange with US 101, is the Harbor Freeway,[3] and SR 110 north from US 101 to Pasadena is the historic Pasadena Freeway, the first freeway in California. The entire Route 110 connects San Pedro and the Port of Los Angeles with Downtown Los Angeles and Pasadena.

This route is part of the California Freeway and Expressway System.[4]


Route description

The Harbor Freeway begins at Gaffey Street in San Pedro, where it then travels mostly due north to the Santa Monica Freeway (Interstate 10) at a point south of downtown Los Angeles, where it becomes signed as State Route 110. I-110 is primarily within the city limits of Los Angeles, running right through South Central Los Angeles and the Harbor Gateway, a two-mile (3 km) wide north–south corridor that was annexed by the city of Los Angeles specifically to connect San Pedro, Wilmington and the Port of Los Angeles with the rest the city.

In addition, the Harbor Transitway, a grade-separated bus and high-occupancy vehicle corridor in the median of 110, runs between State Route 91 (Gardena Freeway) and the south side of Downtown Los Angeles.

The Harbor Freeway, along with the Long Beach Freeway, are the principal means for freight to get from the port of Los Angeles to rail yards and warehouses further inland. Its interchange with the Santa Monica Freeway is notoriously busy and congested, and the portions bordering Bunker Hill in northwest Downtown Los Angeles are choked with traffic at peak travel times.

Notable landmarks and attractions near the Harbor Freeway include the California State University, Dominguez Hills; Watts Towers; Exposition Park (including the Los Angeles Memorial Coliseum); the University of Southern California; Staples Center; the skyline of Downtown Los Angeles; and the Los Angeles Convention Center.

SR 110 continues north on the Pasadena Freeway to Pasadena.


Notable features

The Harbor Freeway is noted for its elaborate high-occupancy vehicle lane infrastructure, with HOV lanes elevated above the rest of traffic in many areas. Of particular note is the Judge Harry Pregerson Interchange, which contains the most elaborate network of direct HOV connectors in Los Angeles County. It includes a 7-story ramp that connects the Century Freeway's HOV lanes to the Harbor Freeway's northbound HOV lanes and offers splendid views of the entire Los Angeles Basin and the San Gabriel Mountains.The intersection with State Route 91 (formally known as the Edmund J Russ Interchange) is also fairly large.


The Harbor Freeway is often heavily congested at rush hour
Approach to the Harbor Freeway in downtown.
The Harbor South bound entering "The Slot" after emerging from the "4-level"
Carpool lanes on the upper deck of the Harbor Freeway, south of Adams Boulevard

In the 1924 Major Street Traffic Plan for Los Angeles, a widening of Figueroa Street to San Pedro as a good road to the Port of Los Angeles was proposed.[5] Progress was slow,[6] and in 1933 the state legislature added the entire length to the state highway system as Route 165, an unsigned designation. This route not only extended from San Pedro north to Los Angeles, but continued through the city-built Figueroa Street Tunnels and along the northern extension of Figueroa Street to Eagle Rock, and then followed Linda Vista Avenue (via an overlap on Route 161 (SR 134) over the Colorado Street Bridge) to Route 9 (now I-210) at the Devil's Gate Reservoir.[7][8][9] The entire length of Route 165 became Sign Route 11 in 1934.[10] U.S. Route 6 was also assigned to the portion between SR 1 and Avenue 26 in 1937,[11] and at about the same time US 66 was moved from Eagle Rock Boulevard to Figueroa Street, overlapping SR 11 between Sunset Boulevard (US 101) and Colorado Street (SR 134).[12][13]

The state completed the Arroyo Seco Parkway, which had been added to the state highway system in 1935 as Route 205, in early 1941, providing a faster route between SR 11 at Avenue 26 and Pasadena.[14] US 66 was moved to the new route, while SR 11 remained on Figueroa Street and Linda Vista Avenue, the former also becoming a new U.S. Route 66 Alternate.[15] Construction of a freeway to San Pedro was much slower, despite having been in the earliest plans for an integrated system. Initially, the Harbor Parkway was to split at the merge with the Venice Parkway northeast of the University of Southern California, with the East By-Pass and West By-Pass straddling the Los Angeles Central Business District and rejoining at the split between the Arroyo Seco Parkway and Riverside Parkway south of Dodger Stadium.[16][17][18] The West By-Pass was soon incorporated into the Harbor Parkway,[19] and the first short piece, by then renamed the Harbor Freeway, opened on July 30, 1952 from the Four Level Interchange south to 3rd Street.[20] (The Arroyo Seco Parkway was completed to the Four Level Interchange on September 22, 1953, and renamed the Pasadena Freeway on November 16, 1954.[14])

The Harbor Freeway gradually pushed south, opening to Olympic Boulevard on March 23, 1954[21] and Washington Boulevard on May 14, 1954.[22] On March 27, 1956, the highway was extended to 42nd Street,[23] and on April 24, 1957 it reached temporary[24] ramps at 88th Place.[25] Further extensions were made to Century Boulevard on July 31, 1958,[26] 124th Street on September 24, 1958,[27] Alondra Boulevard (which the county widened to carry the load) on May 2, 1960,[28] 190th Street on July 15, 1960,[29] Torrance Boulevard on August 28, 1962,[30] and finally Pacific Coast Highway (SR 1) on September 26, 1962.[31] There it connected with a section that had been open since June 19, 1956, from Pacific Coast Highway south to Channel Street.[32] Along with the Vincent Thomas Bridge to Terminal Island, the final piece in San Pedro opened on July 9, 1970, completing the Harbor Freeway to its present length.[33][34][35]

In December 1978, the Harbor Freeway was approved as an Interstate Highway by the FHWA. In 1981, the SR 11 designation was renumbered as Interstate 110 on the Harbor Freeway, and State Route 110 on the Pasadena Freeway.[36]

I-5 signage

In 2001, Richard Ankrom, a local artist, who got lost trying to get onto Interstate 5 North from northbound I-110 because there was no clear official signage labeling access to I-5 North, solved his frustration by covertly modifying one of the overhead signs on the freeway just before the tunnels. Using official government sign specifications, Ankrom fabricated two sign pieces, one being an Interstate marker shield with the number '5' on it, and one with the word "NORTH", and affixed them to the left side of the sign. He performed his modifications in broad daylight, disguised as a Caltrans worker. In that district Caltrans has 3 sign crews, each thinking one of the other two crews did the installation. After nine months, at Ankrom's request, the Los Angeles Downtown News broke the story.

Prior to Ankrom's work, the only signage directing motorists to the 5 North off-ramp came at a quarter-mile before the exit, thus forcing many to merge across multiple lanes in a very short distance. The unofficial modifications remain on the sign to this day, after having been inspected by Caltrans to ensure they would not fall off onto the road below. Ankrom was never charged, despite statements from officials that his actions were illegal.

Caltrans is gradually upgrading all California freeway signs to a newer, more reflective form. This replacement has since happened on 110, and Ankrom's work has been lost — but the new signs include the "5 North" icons.

It should be noted that an additional "5 North" sign has since been installed over the left lane of the northbound Pasadena Freeway at the entrance to the Figueroa Street Tunnels, as well as new electric signage which will note when an additional lane is available for those wishing to transition to northbound Interstate 5 (converting the current single lane transition to dual lanes). All signage at the third tunnel, including an old sign that once indicated Bakersfield as a control city, was removed in December 2008.



Despite the increased traffic in Los Angeles, including trucks shipping products from the Port of Los Angeles in San Pedro to Pasadena, there are currently no plans to upgrade the rest of 110 from I-10 to Pasadena to Interstate standards. Instead, the recent push has been to restore and preserve the Pasadena Freeway as a historic landmark. The state legislature designated the original section, north of the Figueroa Street Viaduct, as a "California Historic Parkway" (part of the State Scenic Highway System reserved for freeways built before 1945) in 1993;[37] the only other highway so designated is the Cabrillo Freeway (SR 163) in San Diego. The American Society of Civil Engineers named it a National Civil Engineering Landmark in 1999,[38] and it became a National Scenic Byway in 2002.[39]

Exit list

Note: Except where prefixed with a letter, postmiles were measured in 1964, based on the alignment as it existed at that time, and do not necessarily reflect current mileage. The numbers reset at county lines; the start and end postmiles in each county are given in the county column.

The entire route is in Los Angeles County.

Location Postmile
#[42] Destinations Notes
San Pedro 0.00 Gaffey Street south Continuation beyond 9th Street
0.00 9th Street
R0.75 Gaffey Street north
South end of freeway and state maintenance
R0.93 1A SR 47 (Vincent Thomas Bridge) – Terminal Island, Long Beach South end of I-110
R1.23 1B Channel Street, Pacific Avenue No southbound entrance
Wilmington 2.77 3A C Street
3.26 3B Anaheim Street
4.06 4 SR 1 (Pacific Coast Highway)
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
7.74 8 Torrance Boulevard
8.78 9 I-405 (San Diego Freeway) – Santa Monica, Long Beach Former SR 7
Los Angeles 9.07 9 190th Street Southbound exit and northbound entrance
9.87 10 SR 91 (Gardena Freeway) Signed as exits 10A (east) and 10B (west) northbound
11.24 11 Redondo Beach Boulevard
11.89 12 Rosecrans Avenue
12.90 13 El Segundo Boulevard
13.82 14A I-105 (Century Freeway) – Norwalk, El Segundo Signed as exits 14A (east) and 14B (west) northbound
13.97 14B Imperial Highway
14.97 15 Century Boulevard Northbound exit is via exit 14B
15.98 16 Manchester Avenue Former SR 42
16.98 17 Florence Avenue
17.51 18A Gage Avenue
17.98 18B Slauson Avenue
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 – Exposition Park, Los Angeles Memorial Coliseum
20.00 20B 37th Street, Exposition Boulevard
20.71 20C Adams Boulevard No southbound carpool exits from carpool entrance (until Manchester Ave)
21.44 21 I-10 (Santa Monica Freeway) – Santa Monica, San Bernardino North end of I-110; south end of SR 110
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
23.04 23B 4th Street
23.04 23C 3rd Street
23.73 24A US 101 (Hollywood Freeway, Santa Ana Freeway) – Hollywood, Santa Ana Access to I-5 South & I-10 East; Northbound trucks over 6,000 lbs must exit.
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
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, Sacramento Southbound exit and northbound entrance
27.12 27 Avenue 43
28.05 28A Avenue 52
28.38 28B Via Marisol
28.76 29 Avenue 60
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 North end of freeway and state maintenance
31.91 Glenarm Street Trucks over 6,000 lbs prohibited south of Glenarm.
32.47 California Boulevard to SR 710 north to
I-210 (Foothill Freeway) – San Fernando, San Bernardino
33.05 Green Street to SR 710 north to
SR 134 west (Ventura Freeway) – Ventura
I-210 (Foothill Freeway) – San Fernando, San Bernardino
33.15 Colorado Boulevard Former SR 248
33.15 Arroyo Parkway Continuation beyond Colorado Boulevard


  1. ^ a b California Department of Transportation, State Truck Route List (XLS file), accessed January 2008
  2. ^ California Highways: Interstate 110
  3. ^ 2007 Named Freeways, Highways, Structures and Other Appurtenances in California. Caltrans. pp. 71. Retrieved 2007-03-27.  
  4. ^ CA Codes (shc:250-257)
  5. ^ Los Angeles Times, City Moves in Figueroa Plan, September 29, 1926, p. 13
  6. ^ Los Angeles Times, Haste Asked on Figueroa, March 2, 1936, p. A8
  7. ^ "An act...relating to...the addition of certain highways to the State system.", 1933 chapter 767, p. 2040: "San Pedro to State Highway Route 9 near La Canada via Figueroa Street."
  8. ^ "An act to establish a Streets and Highways Code...", 1935 chapter 29, p. 285: "Route 165 is from San Pedro to Route 9 near La Canada via Figueroa Street."
  9. ^ "An act...relating to State highways.", 1935 chapter 274, p. 959, 285: "Route 165 is from San Pedro to Route 9 near La Canada via Figueroa Street and Linda Vista Avenue."
  10. ^ California Highways and Public Works, State Routes will be Numbered and Marked with Distinctive Bear Signs, August 1934
  11. ^ Richard F. Weingroff, U.S. 6: The Grand Army of the Republic Highway
  12. ^ H.M. Gousha Company, Los Angeles and Vicinity, 1935
  13. ^ H.M. Gousha Company, Los Angeles and Vicinity, 1939
  14. ^ a b 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
  15. ^ Correspondence between the Division of Highways and American Association of State Highway Officials, transcribed at California Highways: State Route 66
  16. ^ Automobile Club of Southern California, map from Traffic Survey, Los Angeles Metropolitan Area, 1937, reproduced in Janet L. Abu-Lughod, New York, Chicago, Los Angeles: America's Global Cities, 1999, p. 256
  17. ^ Transportation Engineering Board, map from A Transit Program for the Los Angeles Metropolitan Region, 1939, reproduced in Gerrylynn K. Roberts, Philip Steadman, American Cities and Technology: Wilderness to Wired City, 1999, p. 79
  18. ^ Andrew Hamilton, New York Times, Los Angeles Roads Plan, February 25, 1940, p. 128
  19. ^ Los Angeles County Regional Planning District, Master Plan of Metropolitan Los Angeles Freeways, adopted August 6, 1947
  20. ^ Los Angeles Times, Official Ceremonies Open First Harbor Freeway Link, July 31, 1952, p. A1
  21. ^ Los Angeles Times, New Harbor Freeway Link to Open Today, March 23, 1954
  22. ^ Los Angeles Times, New Harbor Freeway Section to Open Today, May 14, 1954
  23. ^ Los Angeles Times, Brief Ceremonies Open Harbor Freeway Section, March 28, 1956, p. 2
  24. ^ Van Nuys News, Harbor Freeway Section Opened, August 5, 1958
  25. ^ Los Angeles Times, Ribbon Cut for New Four-Mile Extension to Harbor Freeway, April 25, 1957
  26. ^ Los Angeles Times, New Harbor Freeway Link Due Thursday, July 28, 1958, p. 5
  27. ^ Los Angeles Times, Harbor Freeway Sector Opens With Ceremony, September 25, 1958, p. B1
  28. ^ Los Angeles Times, Alondra Blvd. Readied for Freeway Exit Load, May 1, 1960, p. CS1
  29. ^ Los Angeles Times, Two-Mile Harbor Freeway Section Will Open Today, July 15, 1960
  30. ^ Los Angeles Times, Harbor Freeway Link to Be Opened Today, August 28, 1962, p. A1
  31. ^ Los Angeles Times, Final Harbor Freeway Link to Be Opened, September 24, 1962, p. 25
  32. ^ Van Nuys News, Harbor Freeway Two-Mile Sector Will Open Today, June 19, 1956
  33. ^ Lee Bastajian, Los Angeles Times, Vincent Thomas Bridge Link Scheduled to Open in July, May 31, 1970, p. CS1
  34. ^ Long Beach Independent, Dedication Set on Freeway Link to Bridge, July 8, 1970
  35. ^ Valley News (Van Nuys), Harbor Freeway Extension to Be Dedicated Today, July 9, 1970
  36. ^ California Highways ( Routes 105 through 112
  37. ^ "An act to add Sections 280, 281, 282, and 283 to the Streets and Highways Code, relating to highways.", 1993 chapter 179
  38. ^ HAER, p. 4
  39. ^ U.S. Department of Transportation, U.S. Transportation Secretary Mineta Names 36 New National Scenic Byways, All-American Roads, June 13, 2002
  40. ^ California Department of Transportation, Log of Bridges on State Highways, July 2007
  41. ^ California Department of Transportation, All Traffic Volumes on CSHS, 2006
  42. ^ California Department of Transportation, California Numbered Exit Uniform System, I-110 Northbound and I-110 Southbound, accessed January 2008

External links


Got something to say? Make a comment.
Your name
Your email address