Interstate 40 in California
Needles Freeway | ||||
I-40 highlighted in red | ||||
Route information | ||||
Maintained by Caltrans | ||||
Length | 154.64 mi[1] (248.87 km) | |||
Existed | 1964 | –present|||
NHS | Entire route | |||
Major junctions | ||||
West end | ![]() | |||
![]() | ||||
East end | ![]() | |||
Location | ||||
Country | United States | |||
State | California | |||
Counties | San Bernardino | |||
Highway system | ||||
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Interstate 40 (I-40) is a major east–west
Route description

The entirety of I-40 in California is designated as Route 40 in the state highway system. The California Streets and Highways Code defines it as follows in section 340:[3]
Route 40 is from Route 15 at Barstow to the Arizona state line near Topock, Arizona via Needles.
I-40 goes through the
I-40 is part of the California Freeway and Expressway System and is part of the National Highway System,[5][6] a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration.[7] I-40 is eligible for the State Scenic Highway System,[8] but it is not officially designated as a scenic highway by the California Department of Transportation.[9] I-40 from I-15 to the Arizona state line is known as the Needles Freeway, as named by Senate Concurrent Resolution 1 in 1968.[10]
History
In 1957, the California Department of Highways proposed that the route be numbered as I-30 because of the already existing
Today, the Needles Freeway replaced the former
In the early 1960s, Project Carryall, a component of Project Plowshare, would have detonated 22 nuclear explosions to excavate a massive roadcut through the Bristol Mountains to accommodate a better alignment of I-40 and a new rail line. This proposal was abandoned by the California State Department of Highways in 1968.[12][13] The section between Ludlow and Needles was constructed using conventional explosives and excavation and designed with culverts for migrating Bighorn sheep and water tanks. It opened to traffic on April 13, 1973.[14]
A sign at that start of I-40 in Barstow showing the distance to Wilmington, North Carolina, had been stolen multiple times.[2]
Exit list
The entire route is in San Bernardino County.
Location | mi[1] | km | Exit[1] | Destinations | Notes | |
---|---|---|---|---|---|---|
Barstow | 0.00 | 0.00 | ![]() ![]() ![]() ![]() ![]() | Western terminus; access to I-15 north via exit 1; I-15 north exit 184A | ||
0.79 | 1.27 | 1 | ![]() ![]() CR 66 | Eastbound signage | ||
![]() ![]() ![]() ![]() ![]() | Westbound signage; west end of CR 66 overlap; former US 66 | |||||
2.35 | 3.78 | 2 | Marine Corps Logistics Base (East Main Street) | |||
4.71 | 7.58 | 5 | Nebo Street ( CR 66 east) | East end of CR 66 overlap; eastbound exit and westbound entrance | ||
Daggett | 7.18 | 11.56 | 7 | A Street – Daggett | ||
| 12.19 | 19.62 | 12 | Airport Road – Barstow-Daggett Airport | ||
CR 66) | Former US 66 | |||||
| 23.33 | 37.55 | 23 | Fort Cady Road – Newberry Springs | ||
| 28.50 | 45.87 | Desert Oasis Rest Area | |||
| 32.50 | 52.30 | 33 | Hector Road | ||
CR 66) | Former US 66 | |||||
| 78.17 | 125.80 | 78 | Kelbaker Road | ||
| 99.73 | 160.50 | 100 | Essex Road – Essex | Serves Providence Mountains State Recreation Area, Mojave National Preserve | |
| 106.94 | 172.10 | John Wilkie Rest Area – Fenner | |||
CR 66) – Essex | Former US 66 | |||||
| 115.19 | 185.38 | 115 | Mountain Springs Road | former US 66 west | |
| 119.97 | 193.07 | 120 | Water Road | ||
| 132.73 | 213.61 | 133 | ![]() ![]() Las Vegas | West end of US 95 overlap; former US 66 west | |
Needles | 139.11 | 223.88 | 139 | River Road Cutoff | Eastbound exit and westbound entrance; former US 66 east | |
141.01 | 226.93 | 141 | W. Broadway ( US 66 | |||
142.37 | 229.12 | 142 | J Street – Downtown Needles | |||
143.76 | 231.36 | 144 | ![]() ![]() ![]() I-40 BL west) – Blythe | East end of US 95 overlap; former US 66 | ||
| 148.19 | 238.49 | 148 | Five Mile Road | Former US 66 | |
| 149.10 | 239.95 | Agricultural Inspection Station (westbound) | |||
| 153.31 | 246.73 | 153 | Park Moabi Road | ||
Colorado River | 154.64 | 248.87 | California–Arizona line | |||
![]() ![]() | Continuation into Arizona | |||||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
|
Interstate 40 Business
Location | Needles |
---|---|
Length | 3.3 mi[15] (5.3 km) |
Interstate 40 Business (I-40 Bus.) is a business loop of I-40 through Needles in San Bernardino County that begins at exit 141 of I-40/US 95 northwest of town. The unsigned highway follows Broadway to the southeast to Needles Highway, then eastward through an underpass of I-40 into the town center. At N Street, the loop turns southward into the southern part of town where it reconnects with Broadway. The route then continues southeastward to I-40 exit 144 where it terminates and US 95 continues southward along Broadway. The route largely follows the former route of US 66 through town except where the historic highway's path has since been disrupted by the construction of I-40.[15]
See also
- California Roads portal
California portal
References
- ^ California Numbered Exit Uniform System. California Department of Transportation. December 26, 2016. Retrieved July 17, 2021.
- ^ a b "I-40 Barstow, Calif., sign gone for good". Star-News. November 13, 2009. Archived from the original on March 7, 2012. Retrieved November 13, 2009.
- ^ California Code, SHC 340.
- ^ San Bernardino County Street Atlas (Map). Thomas Brothers. 2008.
- ^ "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: California (South) (PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration. Retrieved October 15, 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.
- ^ "Article 2.5 of Chapter 2 of Division 1". California Streets & Highways Code. Sacramento: California Office of Legislative Counsel. Retrieved February 6, 2019.
- ^ California Department of Transportation (August 2019). "Officially Designated State Scenic Highways and Historic Parkways" (XLSX). Sacramento: California Department of Transportation. Retrieved October 15, 2017.
- ^ California Department of Transportation; California State Transportation Agency (January 2021). 2020 Named Freeways, Highways, Structures and Other Appurtenances in California (PDF). Sacramento: California Department of Transportation. p. 33. Archived from the original (PDF) on October 10, 2022.
- ^ Anton, Mike (January 17, 2007). "Destiny in the desert". Los Angeles Times. Retrieved November 29, 2011.
- ^ "Project Carryall Marker". Hmdb.org. January 9, 2012. Retrieved January 25, 2013.
- ^ Fry, J. G.; Stane, R. A.; Crutchfield Jr, W. H. (July 26, 1994). "Preliminary Design Studies In A Nuclear Excavation: Project Carryall". TRB Publications Index (50). Retrieved January 25, 2013.
- Newspapers.com.
- ^ Google, Inc.Retrieved March 12, 2021.
External links
- Caltrans: I-40 highway conditions
- Caltrans Traffic Conditions Map
- California Highway Patrol Traffic Incidents
- Interstate 40 Archived March 29, 2010, at the Wayback Machine @ Interstate-Guide.com
- Interstate 40 Business @ Interstate-Guide.com
- Interstate 40 at California @ AARoads.com
- Interstate 40 at California Highways