Interstate 405 (California)

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Interstate 405 marker

Interstate 405

San Diego Freeway
I-405 highlighted in red
Route information
Auxiliary route of I-5
Maintained by Caltrans
Length72.415 mi[1] (116.541 km)
Major junctions
South end I-5 in Irvine
Major intersections
North end I-5 near San Fernando
CountryUnited States
CountiesOrange, Los Angeles
Highway system
US 395US 466

Interstate 405 (I-405) is an Interstate Highway in the Orange and Los Angeles counties of California. It is a spur route of the Interstate 5. It goes from the I-5 near San Fernando, through the west side of Los Angeles and Long Beach before ending back at the Interstate 5 near Irvine. It is the busiest highway in the United States, mainly because it is the only highway in the west side of Los Angeles that goes from north to south. It also passes important places such as Los Angeles International Airport and the ports of Los Angeles and Long Beach.[2][3][4]

Exits[change | change source]

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).[1] Segments that have not been built or are now controlled locally may be left out. The numbers start again at county lines; the start and end postmiles in each county are given in the county column.

ORA 0.23–24.18
Irvine0.23 I-5 south (San Diego Freeway south)  – San DiegoSouthern terminus; former US 101 south; no access to I-5 north; I-5 exit 94A
1ALake Forest DriveNo northbound exit
1BBake ParkwayNo northbound exit
0.951CIrvine Center DriveSigned as exit 1 northbound
I-5 southHOV access only; southbound exit and northbound entrance
1.802 SR 133 (Laguna Freeway) to toll road – Laguna BeachNo northbound exit to SR 133 north; SR 133 exit 8
2.883Shady Canyon Drive / Sand Canyon Avenue
3.954Jeffrey Road / University Drive
5.625Culver Drive
6.927Jamboree Road
7.808 MacArthur Boulevard – John Wayne Airport
Costa Mesa8.749A SR 55 (Costa Mesa Freeway)SR 55 north exit 6, south exits 6A-B
SR 55 northHOV access only
9BAnton Boulevard / Avenue of the ArtsNorthbound exit and entrance
9.519BBristol Street
10.2810 SR 73 south (Corona del Mar Freeway) to SR 55 south (Costa Mesa Freeway)  – San Diego via toll roadSouthbound exit and northbound entrance
11South Coast DriveNorthbound exit only
10.7511AFairview RoadSigned as exit 11 northbound
11.4511BHarbor Boulevard – Costa MesaSigned as exit 11 northbound
Fountain Valley12.4712Euclid Street / Newhope Street / Ellis Avenue
13.7814Brookhurst Street – Fountain Valley
14.8215AWarner Avenue eastSouthbound exit and northbound entrance
Huntington Beach15.2115BMagnolia Street / Warner Avenue westSigned as exit 15 northbound
16.5416 SR 39 (Beach Boulevard)  – Westminster, Huntington Beach
Westminster17.7518Bolsa Avenue / Goldenwest StreetGoldenwest Street is signed as Golden West St.
19.1619A-BWestminster Boulevard / Springdale Street
20.5620Bolsa Chica Road / Valley View StreetSouthbound exit and entrance only
20.7521 SR 22 east (Garden Grove Freeway)  – Garden GroveModule:Jct warning: "road" parameter is deprecatedSouthern end of SR 22 concurrency, Valley View St. not signed southbound
SR 22 eastHOV access only; southbound exit and northbound entrance
Seal Beach22.6422Seal Beach Boulevard / Los Alamitos BoulevardFormer SR 35
23.2823 SR 22 west  – Long BeachNorthern end of SR 22 concurrency; northbound exit and southbound entrance; I-605 exit 1A
I-605 northHOV access only; northbound exit and southbound entrance
OrangeLos Angeles
county line
Seal BeachLong Beach line23.2823 SR 22 west (7th Street)  – Long BeachSouthbound exit and northbound entrance; SR 22 exit 2, I-605 south exit 1A
24.0424A I-605 north (San Gabriel River Freeway)Signed as exit 24 northbound; I-605 north exit 1A, south exits 1B-C; SR 22 exit 2
San Gabriel River
Los Angeles
LA 0.00–48.64
Long Beach0.4524BStudebaker RoadSouthbound exit and northbound entrance
1.1125Palo Verde Avenue
1.6426AWoodruff AvenueNo southbound exit
2.1826BBellflower BoulevardSigned as exit 26 southbound
3.3227 SR 19 (Lakewood Boulevard)  – Long Beach Airport
4.8829Spring Street / Cherry Avenue – Signal HillSigned as exits 29A (south) and 29B (north)
Signal Hill5.3929COrange Avenue
Long Beach6.0830AAtlantic Avenue
6.3430BLong Beach BoulevardFormer SR 15
6.7032APacific AvenueSouthbound exit and northbound entrance
7.6032 I-710 (Long Beach Freeway)  – Long Beach, PasadenaSigned as exits 32A (north) and 32B (south) northbound, and 32B (south) and 32C (north) southbound; I-710 exit 4
8.0632CHughes Way / Santa Fe AvenueSigned as exit 32D southbound
Carson8.7833AAlameda Street (SR 47 south)
9.5633BWilmington Avenue
10.5434Carson Street
11.2235Avalon Boulevard – CarsonNorthbound exit to Avalon Boulevard south is via exit 34.
12.6036Main StreetNorthbound exit and southbound entrance
12.9737A I-110 (Harbor Freeway)  – San Pedro, Los AngelesSigned as exit 37 northbound; former US 6; I-110 exit 9
Los Angeles13.2837BVermont AvenueSouthbound exit and northbound entrance
13.8338ANormandie Avenue – Gardena
14.4038BWestern Avenue
Torrance15.4539Crenshaw Boulevard – Torrance
16.5740 To SR 91Module:Jct warning: "road" parameter is deprecatedSigned as exit 40A southbound; former SR 91
16.8840BRedondo Beach Boulevard – Redondo BeachSouthbound exit and northbound entrance
Lawndale17.5942A SR 107 (Hawthorne Boulevard)  – Lawndale
Redondo Beach18.2342BInglewood Avenue
Hawthorne19.2143Rosecrans Avenue – Manhattan BeachSigned as exits 43A (east) and 43B (west) southbound
20.2244El Segundo Boulevard – El Segundo
Los AngelesR21.1845A I-105 (Century Freeway)  – El Segundo, NorwalkSigned as exit 45 southbound; serves Los Angeles International Airport; I-105 east exit 2, west exit 2B
R21.2245BImperial HighwaySouthbound exit is part of exit 46.
Inglewood22.2246 Century Boulevard – LAX Airport
23.3647Manchester Boulevard / La Cienega Boulevard / Florence AvenueManchester Boulevard was former SR 42.
Los Angeles24.2748La Tijera Boulevard
24.5649AHoward Hughes Parkway / Sepulveda BoulevardSigned as exit 49 southbound
Culver City25.4649BSepulveda Boulevard / Slauson Avenue (SR 90 east)Northbound exit only; SR 90 exit 2
25.9550AJefferson BoulevardSigned as exit 50B northbound
25.9550B SR 90 (Marina Freeway)  – Marina del ReyModule:Jct warning: "road" parameter is deprecatedSigned as exit 50A northbound; no access from I-405 north to SR 90 east; SR 90 exit 2
27.2051Culver Boulevard / Washington Boulevard – Culver City
27.9652Venice Boulevard (SR 187) / Washington Boulevard
Los Angeles29.1653ANational BoulevardNorthbound exit and southbound entrance
29.5453B I-10 (Santa Monica Freeway)  – Santa Monica, Los AngelesSigned as exit 53 southbound; I-10 exits 3A-B
30.1854Olympic Boulevard / Pico BoulevardSouthbound exit and northbound entrance; former SR 26
30.8655A SR 2 (Santa Monica Boulevard)Former US 66
31.5455BWilshire BoulevardSigned as exits 55B (east) and 55C (west) southbound
32.5056Montana AvenueNorthbound exit only; demolished[8]
33.0057ASunset BoulevardSigned as exit 57 southbound
33.2957BMoraga DriveNorthbound exit and entrance
34.7659Getty Center Drive
36.0361Mulholland Drive / Skirball Center Drive
Sherman Oaks, Los Angeles39.0063AVentura Boulevard / Sepulveda Boulevard / Valley Vista Boulevard
39.4363B US 101 (Ventura Freeway)  – Ventura, Los AngelesUS 101 exit 19A
40.2964Burbank Boulevard
Van Nuys, Los Angeles41.3665Victory Boulevard – Van Nuys
42.3666Sherman Way – Van Nuys AirportSigned as exits 66A (east) and 66B (west) northbound
North Hills, Los Angeles43.7668Roscoe Boulevard – Panorama City
44.7469Nordhoff Street
Mission Hills, Los Angeles46.2470Devonshire Street – Granada Hills
46.8571A SR 118 (Ronald Reagan Freeway)  – Simi ValleySigned as exit 71 southbound; no southbound exit to SR 118 east or northbound entrance from SR 118 west; SR 118 east exit 42A, west exit 42B
47.2471BSan Fernando Mission BoulevardNorthbound exit and southbound entrance
47.7572Rinaldi Street – Mission Hills
48.64 I-5 north (Golden State Freeway)  – SacramentoNorthern terminus; no access to I-5 south; I-5 exit 158
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References[change | change source]

  1. 1.0 1.1 1.2 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.
  2. "U.S. Highways With the Most Traffic". Time For Kids. Archived from the original on August 11, 2011.
  3. Santa Monica College Corsair News Article Archived August 15, 2007, at the Wayback Machine
  4. "Most Travelled Urban Highways Average Annual Daily Traffic". Federal Highway Administration. July 27, 2010. Retrieved January 26, 2013.
  5. "California Log of Bridges on State Highways: District 7" (PDF). Caltrans. October 2006. Archived from the original (PDF) on June 29, 2007. Retrieved September 19, 2019.
  6. California Department of Transportation, All Traffic Volumes on CSHS, 2005 and 2006
  7. Howe, Dan (April 17, 2007). "I-405 Northbound" (PDF). California Numbered Exit Uniform System. California Department of Transportation. Archived from the original (PDF) on August 20, 2016. Retrieved February 14, 2008.
    Howe, Dan (April 17, 2007). "I-405 Southbound" (PDF). California Numbered Exit Uniform System. California Department of Transportation. Archived from the original (PDF) on August 20, 2016. Retrieved February 14, 2008.
  8. "405 Freeway NB Montana Avenue Offramp Dies At 57". Los Angeles: KCBS-TV. November 24, 2013. Retrieved March 19, 2014.