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Interstate 15 in California

Route map:
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This is an old revision of this page, as edited by 107.202.105.233 (talk) at 02:40, 8 April 2014 (→‎Exit list: add allocation color, SR 15 turns into I-15 north of I-8). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

For the original Sign Route 15, see California State Route 15 (1934-1964).
This article is about the section of Interstate 15 in California. For the entire route, see Interstate 15.

Interstate 15 and State Route 15 marker Interstate 15 and State Route 15 marker

Interstate 15 and State Route 15

Route information
Maintained by Caltrans
Length293.64 mi[1][2] (472.57 km)
Existed1957–present
Major junctions
South end I-5 in San Diego
Major intersections I-805 in San Diego
I-8 in San Diego
I-215 in Murrieta
I-10 in Ontario
SR 210 in Rancho Cucamonga
I-215 in San Bernardino
SR 58 in Barstow
I-40 in Barstow
North end I-15 at Nevada state line
Location
CountryUnited States
StateCalifornia
Highway system
← SR 14→ SR 16

Route 15, consisting of the contiguous segments of State Route 15 (SR 15) joined by Interstate 15 (I-15), is a major north–south state highway in the U.S. state of California, connecting San Bernardino, Riverside, and San Diego Counties. The route consists of the southernmost 287.26 miles (462.30 km)[3] of I-15, a major Interstate Highway that extends north through Nevada, Arizona, Utah, Idaho, and Montana to the Canadian border. It is a major thoroughfare for traffic between San Diego and the Inland Empire, as well as between Southern California, Las Vegas, Nevada, and points beyond.

South of its junction at Interstate 8 in San Diego, the highway becomes SR 15, extending 5.59 miles (9.00 km)[1] to Interstate 5, about 12 miles (19 km) from the Mexican border. This segment was initially signed as a state route instead of an Interstate, but it is being upgraded to Interstate standards so it would become part of I-15 in the future. Including this segment, the entire Route 15 is 293.64 miles (472.57 km).[1]

Interstate 15 has portions designated as the Escondido Freeway, Avocado Highway, Temecula Valley Freeway, Ontario Freeway, Barstow Freeway, CHP Officer Larry L. Wetterling and San Bernardino County Sheriff’s Lieutenant Alfred E. Stewart Memorial Highway, or Mojave Freeway.

Route description

Looking south from the University Avenue overpass

SR 15 is part of the California Freeway and Expressway System.[4] SR 15 begins south of Interstate 5 at 32nd Street near Harbor Drive. After this, SR 15 has an interchange with State Route 94,[5] which has been cited as not being up to Interstate standards.[6] The route interchanges with Interstate 805; however, one can only continue in the same direction that they were at this intersection, since this is the interchange of two north–south freeways, resulting in the overall shape of an "X." Between the Polk Avenue and Orange Avenue overpasses, the freeway goes under a city park that was built on top of the freeway during construction in 2001. Pedestrian bridges were also built at Monroe Avenue and Landis Street to reduce the effects of the freeway geographically dividing the community.[7] Between I-8 and I-805, SR 15 follows the former alignment of 40th Street, which was its former routing as a city street.[5] It continues seamlessly into the southern terminus of I-15 at I-8 in San Diego. On the northbound conversion to I-15 at I-8, there is no "End SR 15" sign.[8]

Interstate 15 is part of the California Freeway and Expressway System,[4] and it is eligible for designation as a state highway within the State Scenic Highway System;[9] however the state transportation authority, Caltrans, has not done so.[10] There are various local names for the highway, such as the Escondido Freeway between San Diego and Escondido. Template:J between SR 163 and Pomerado Road/Miramar Road is known as the Semper Fi Highway in recognition of the nearby Marine Corps Air Station Miramar.[11] North of the Escondido city limits it is known as the Avocado Highway, whose designation ends upon entering Temecula. There are other local names as noted below.

Heading northward, I-15 currently begins at Interstate 8, at the same place that its continuation, State Route 15, begins its southward journey. Template:J goes through Mission Valley and intersects with State Route 52, before merging with State Route 163. After traversing the Marine Corps Air Station Miramar, I-15 comes into Rancho Peñasquitos, where it intersects with the end of State Route 56. Northward, the route crosses Lake Hodges inside the upper San Diego city limits. I-15 continues north into Escondido, where it interchanges with State Route 78. There are high-occupancy toll lanes in the center of I-15 from State Route 163 to State Route 78; solo drivers are required to pay a toll using a FasTrak transponder.[12]

Cat Dune sand ramp, Cronese Mountains, southwest of Baker, California.

North of Escondido, I-15 goes through hilly terrain and farmland, descending to the town of Fallbrook and intersecting State Route 76 (SR 76), before it crosses the county line into Riverside County and descends to the Inland Empire. In Riverside County, SR 79 runs concurrently with I-15 for a four-mile (6 km) portion in Temecula, before it splits away running north to Hemet. Then, Template:J intersects with the southern end of Interstate 215, which continues the designation of the Escondido Freeway. Interstate 15 continues north as the Temecula Valley Freeway.[5]

West of Baker, the freeway jogs north to pass Cave Mountain.

Template:J splits from its first and only spur route in California, Interstate 215, which runs through the two largest cities in the Inland Empire, San Bernardino and Riverside. Template:J runs along the eastern edge of the Santa Ana Mountains, passing the town of Lake Elsinore. It continues through the suburban areas in the western Inland Empire, passing Corona and Ontario, California. The highway is then rejoined by I-215, before heading northwards and upward through the Cajon Pass, an important mountain pass that is the primary route between Southern California and points eastwards and northeastwards.

Intersection of I-10 and I-15.

Template:J that is located between its northern and southern junctions with Template:J is also used by many local residents as the major north–south route for the western portions of the San Bernardino-Riverside-Ontario metropolitan area. Template:J serves a similar function in the eastern portion of the metropolitan area. These two highways are the only continuous north–south freeways in the area.)

North of Limonite Avenue (south of SR 60), I-15 is known as the Ontario Freeway. Template:J intersects State Route 60, Interstate 10, and State Route 210 in rapid succession as it goes through Mira Loma, Ontario, and Rancho Cucamonga. As it nears Devore, Template:J merges with Interstate 215, where it is called the Barstow Freeway or the Mojave Freeway. A short section between SR 138 and Oak Hill Road is also designated as the CHP Officer Larry L. Wetterling and San Bernardino County Sheriff’s Lieutenant Alfred E. Stewart Memorial Highway.[13]

Exit to Zzyzx.

North of the Cajon Pass, I-15 traverses the Mojave Desert towns of Hesperia and Victorville. Template:J passes through desert for 30 miles (48 km) before reaching Barstow, then continues past Zzyzx Road, before reaching the town of Baker. The sign for Zzyzx Road — alphabetically the last place name in the world — is a landmark of sorts on the drive between Los Angeles and Las Vegas. Template:J enters Nevada near the casino town of Primm, formerly known as Stateline, Nevada.

Southbound I-15 inspection station
Westbound coming down into Shadow Valley. Halloran Summit is on the skyline, about 8 miles (13 km) away.

Template:J thereafter to Las Vegas, Salt Lake City, and on into Idaho and Montana, before ending at the Canadian border, where Alberta Highway 4 continues the ribbon of asphalt into Canada. Because it joins with the western end of I-70 in Southwestern Utah, Template:J also forms part of a major east–west corridor connecting Southern California with Denver, St. Louis, and points east.

The Mojave Freeway is fairly busy on weekdays, since it connects the rapidly growing exurbs of the Victor Valley with the Los Angeles area. On weekends and holidays, however, it can sometimes be jammed with Californians driving to Las Vegas for short vacations.[14]

Construction is currently underway to rehabilitate the pavement on Template:J and to add truck lanes to separate autos from truck traffic.[citation needed]

History

I-15 replaced US 395 between San Diego and Temecula. The highway replaced US 66 between San Bernardino and Barstow. The route north of Barstow replaced US 91.

I-15 was initially planned to run from I-10 in San Bernardino along the current I-215 alignment then up through the Cajon Pass and on to Las Vegas, with a distance of 186.24 miles (299.72 km) within the state. California successfully argued the addition south to San Diego, suggesting that the freeway would connect the major military bases former March AFB and former NAS (now MCAS) Miramar. US 395 was then signed TEMP-15 and the "old" I-15 between Devore and San Bernardino became I-215.

On January 24, 1957, the State Highway Commission defined the Escondido Freeway as what are now Routes 15 and 215 from Route 805 to Route 91. This entire segment was previously U.S. Route-395 when it was named. Since then, the definition was extended on Route 15 south to Route 8 by Assembly Concurrent Resolution 34, Chapter 67 in 1979.[15] Meanwhile, the segment of Route 15 from the San Diego County Line to the I-15/I-215 interchange was named the Temecula Valley Freeway in 1990.[16]

The original definition for the Corona Freeway, as named by the State Highway Commission on July 23, 1958, stated that it was "Routes 71, 91, and 15 from Route 10 West of Pomona to Route 215".[17]

This legal definition has been amended twice: First in 1990, the California Assembly passed Concurrent Resolution 125, Chapter 78, renaming I-15 between the San Diego County Line (which is further south from Interstate 215) and Bundy Canyon Road near Lake Elsinore as the Temecula Valley Freeway.[16]

Then in 1993, the California Assembly passed legislation officially designating State Route 71 as a part of the Chino Valley Freeway.[18] However, the name "Corona Freeway" is, confusingly, sometimes still applied to this portion of State Route 71; thus, despite the official change, guide signs on I-10 eastbound and SR 57 southbound at the Kellogg Interchange in Pomona still refer to SR 71 as the "Corona Freeway".

Present SR 15 was signed after the creation of I-15 in 1968. Since I-15's terminus was at I-8, SR 15 was signed mostly along 40th Street and Wabash Boulevard in San Diego to its merge with I-5. The portion between Adams Avenue and Interstate 805 remained a city street for a long time, and this portion was not completed until January 2000. For this reason, the freeway is often referred to as the 40th Street Freeway.[11]

Before the completion of the freeway, from 1968 to 1992, the neighborhood was known for prostitution, drugs, drive-by shootings, and gangs. The indirect cause of all this was due to Caltrans' plans to build a freeway in this area on land where houses were. Because families did not want to live in these houses since they would be soon torn down, they rented them to those who were only going to be in the area on a temporary basis; many of these people were involved in illegal activities. Even though the freeway was officially added to the Caltrans proposals as early as 1968, it was not until March 1992 that construction began. Many in the city opposed the building of this freeway, although some petitioned for the freeway to be built because of the poor conditions in the neighborhood.[19]

State Route 31

In 1933, Interstate 15 was defined as Legislative Route 193, running from pre-1964 Legislative Route 43 (present State Route 91) in Corona to pre-1964 Legislative Route 9 (now State Route 66, and was extended north to pre-1964 Legislative Route 31 (present I-15 and Template:J in 1935.[20] The piece south of U.S. Route 60 (Mission Boulevard), running along North Main Street, Hamner Avenue and Milliken Avenue, was state-maintained by 1955, but was not assigned a signed number.[21] This was still the only existing piece in 1963, and had a planned freeway replacement to the east.[22]

In the 1964 renumbering, the route was assigned as State Route 31. It was added to the Interstate Highway System in February 1972 as a realignment of Interstate 15 (the former alignment became Interstate 15E).[23] Legislative changes were made in 1974, eliminating SR 31 (along with State Route 71 south of Corona) in favor of I-15.[24] However, SR 31 continued to be signed — as temporary Interstate 15 - until present I-15 was finished. (A 1986 map shows state maintenance continuing north past SR 60 to Jurupa Street, where it turned east to I-15.[25])

Future

The segment signed as California State Route 15 from Interstate 5 to Interstate 8 in San Diego will be re-designated as part of I-15 once this segment is completely upgraded to Interstate standards.

Most of Interstate 15 is undergoing major improvements from Devore to the Nevada State Line, beginning in 2002 and costing $349 million. This project will improve traffic flow on the heavily traveled highway for those going to and from Las Vegas. Most of the construction was completed by winter 2009.[26] Projects include adding 39 miles (63 km) of truck lanes on hills at various locations, repaving 76 miles (122 km) of Template:J at various locations, adding exit numbers, renovating and rehabilitating the rest area between Baker and the Nevada State Line (Valley Wells Rest Area), reconstructing bridges in Baker, and moving the agriculture inspection station from Yermo to the Nevada State Line and including a truck weigh station.

As of March 2008, construction is underway to add a northbound truck descending lane and to repave lanes between Bailey Road and Yates Well Road.

Redesignation of SR 15 as I-15 will eventually occur when the freeway's interchange with SR 94 is upgraded to Interstate standards. The interchange currently has left-exits and blind merges, and is due to be updated with a long-awaited widening of both SR 15 and SR 94 by 2016. At that time SR 15 will be resigned as part of I-15. The remaining portion of SR 15 conforms with Interstate standards.[6]

Exit list

CountyLocationmi[27]kmExit[27]DestinationsNotes
San DiegoSan Diego0.000.00—Harbor DriveSouthbound exit and northbound entrance
Module:Jctint/USA warning: Unused argument(s): state
1AMain StreetSouthbound exit and northbound entrance
0.40–
0.59		0.64–
0.95		1
B-C		 I-5 (San Diego Freeway) – National City, Chula Vista, Tijuana, Ensenada, Los AngelesSouthbound exit and northbound entrance; signed as exits 1B (north) and 1C (south)
0.600.971DOcean View Boulevard, Imperial AvenueSigned as exit 1 northbound
1.852.982AMarket Street
2.233.592
B-C		 SR 94 (M. L. King Jr. Freeway)Module:Jct warning: "road" parameter is deprecatedSigned as exits 2B (east) and 2C (west) northbound; southbound exit to SR 94 east is via exit 3
3.375.423
 I-805 north (Jacob Dekema Freeway) – Los Angeles		Northbound exit and southbound entrance



 I-805 south (Jacob Dekema Freeway) to SR 94 east		Southbound exit and northbound entrance
4.667.505AUniversity Avenue – City Heights Transit Plaza
5.078.165BEl Cajon Boulevard – Boulevard Transit PlazaFormer I-8 Bus.
5.649.086AAdams Avenue
6.139.876B I-8 – Beaches, El Centro, Yuma, TucsonSR 15 to the south; I-15 to the north
6.8210.987Friars Road – Qualcomm StadiumSigned as exits 7A (east) and 7B (west) northbound
8.3713.478Aero Drive
9.2414.879Balboa Avenue, Tierrasanta BoulevardFormer SR 274 west
10.0016.0910Clairemont Mesa BoulevardSouthbound exit is part of exit 11
10.5817.0311 SR 52
12.1219.5112
 SR 163 south (Cabrillo Freeway)		Northbound exit is via exit 11; former US 395 south
13.3321.4513Miramar WayServes Marine Corps Air Station Miramar
14.2923.0014Miramar Road, Pomerado Road
15.0024.1415Carroll Canyon Road
15.9225.6216Mira Mesa Boulevard
17.3127.8617Mercy Road, Scripps Poway Parkway
18.1829.2618 CR S4 (Poway Road)Module:Jct warning: "road" parameter is deprecated
19.4731.3319
 SR 56 west (Ted Williams Freeway)Module:Jct warning: "road" parameter is deprecated
20.5733.1021Carmel Mountain Road
21.9235.2822Camino del Norte
22.9436.9223Bernardo Center Drive
23.6938.1324Rancho Bernardo Road
26.0341.8926 CR S5 (Pomerado Road)Module:Jct warning: "road" parameter is deprecated
Escondido26.9743.4027Via Rancho Parkway
Module:Jctint/USA warning: Unused argument(s): state
28Centre City Parkway (I-15 Bus. north)Northbound exit and southbound entrance; former US 395 north
Module:Jctint/USA warning: Unused argument(s): columns
28.7746.3029Felicita Road
30.0948.43309th Avenue, Auto Park Way
30.6349.2931Valley Parkway – Downtown Escondido
31.5250.7332 SR 78 – Oceanside, Ramona
32.8652.8833El Norte Parkway
33.9254.5934Centre City Parkway (I-15 Bus. south)Southbound exit and northbound entrance; former US 395 south
​36.6458.9737 CR S12 (Deer Springs Road)Module:Jct warning: "road" parameter is deprecated
​40.8465.7341Gopher Canyon Road, Old Castle Road
​43.2869.6543Old Highway 395Former US 395
​46.4974.8246 SR 76 – Pala, Oceanside
​50.5981.4251 CR S13 (Mission Road) – Fallbrook
​54.0787.0254Rainbow Valley Boulevard
RiversideTemecula57.7092.8658
 SR 79 south (Temecula Parkway) – Temecula, Indio		South end of SR 79 overlap, former SR 71 south
Module:Jctint/USA warning: Unused argument(s): state
59.2495.3459Rancho California Road, Old Town Front Street
60.8897.9861
 SR 79 north (Winchester Road) – Hemet		North end of SR 79 overlap
Murrieta63.00101.3963
 I-215 north (Escondido Freeway) – Riverside, San Bernardino		Southbound exit is via exit 64; former I-15E north / US 395 north
Module:Jctint/USA warning: Unused argument(s): state
​63.73102.5664Murrieta Hot Springs Road
​64.85104.3765California Oaks Road, Kalmia Street
​67.90109.2768Clinton Keith Road
​69.33111.5869Baxter Road
​70.56113.5671Bundy Canyon Road
Lake Elsinore73.42118.1673Diamond Drive, Railroad Canyon Road
​75.21121.0475Main Street (I-15 Bus. north)
​76.54123.1877 SR 74 (Central Avenue) – San Juan Capistrano, Perris
​78.11125.7178Nichols Road
​80.95130.2881Lake Street (I-15 Bus. south)
​84.66136.2585Indian Truck Trail
​87.65141.0688Temescal Canyon RoadFormer SR 71
​89.90144.6890Weirick Road, Dos Lagos Drive
​91.07146.5691Cajalco Road
​92.08148.1992El Cerrito Road
Corona92.95149.5993Ontario AvenueFormer SR 71
94.61152.2695Magnolia Avenue
95.76154.1196 SR 91 (Riverside Freeway) – Riverside, Beach CitiesSigned as exits 96A (east) and 96B (west) southbound; former US 91
Norco97.14156.3397Hidden Valley Parkway
97.90157.5598Second Street (I-15 Bus. north)
99.86160.71100Sixth Street (I-15 Bus. south)
​102Schleisman RoadProposed interchange[28]
Module:Jctint/USA warning: Unused argument(s): columns
​102.52164.99103Limonite Avenue
​105Cantu-Galleano Ranch Road
Module:Jctint/USA warning: Unused argument(s): columns
​105.73170.16106 SR 60 (Pomona Freeway) – Los Angeles, RiversideSigned as exits 106A (east) and 106B (west) northbound
San BernardinoOntario107.55173.08108Jurupa StreetFormer SR 31 south
108.93175.31109 I-10 (San Bernardino Freeway, I-10 Bus.) – Los Angeles, San Bernardino, Indio, Blythe, PhoenixSigned as exits 109A (west) and 109B (east) southbound; former US 99
Rancho Cucamonga109.59176.371104th Street
111.85180.01112 SR 66 (Foothill Boulevard)Former US 66
113.32182.37113Baseline Road
114.63–
115.37		184.48–
185.67		115 SR 210 – Pasadena, San Bernardino, RedlandsSigned as exits 115A (east) and 115B (west) northbound and exits 115A (west) and 115B (east) southbound
Fontana116.16186.94116Summit Avenue
117Duncan Canyon RoadProposed interchange[29]
Module:Jctint/USA warning: Unused argument(s): columns
119.38192.12119Sierra Avenue
San Bernardino122.19196.65122Glen Helen Parkway
122.91197.80123
 I-215 south (Barstow Freeway) – San Bernardino, Riverside		Left exit southbound; former I-15E south / US 66 west / US 91 south / US 395 south
124.09199.70124Kenwood AvenueFormer US 66 east
​129.14207.83129Cleghorn RoadFormer US 66 west
​130.50210.02131 SR 138 – Palmdale, Silverwood Lake
​137.75221.69138Oak Hill Road
​140Ranchero RoadProposed interchange[30]
Module:Jctint/USA warning: Unused argument(s): columns
​141.45227.64141Lua error in Module:Jct at line 204: attempt to concatenate local 'link' (a nil value).Northbound exit and southbound entrance
​ Joshua Street to US 395 northSouthbound exit and northbound entrance
Hesperia143.13230.35143Main Street – Hesperia, Phelan
Victorville146.72236.12147Bear Valley Road – Lucerne Valley
148La Mesa Road, Nisqualli RoadProposed interchange[31]
Module:Jctint/USA warning: Unused argument(s): columns
149.64240.82150
 SR 18 west (Palmdale Road, I-15 Bus. north)		South end of SR 18 overlap; former US 66 east / US 91 north
150.56242.30151ARoy Rogers Drive
151.16243.27151BMojave Drive
152.62245.62153A
 SR 18 east (D Street, I-15 Bus. south) / CR 66 (National Trails Highway) – Victorville, Apple Valley		North end of SR 18 overlap; former US 66 / US 91
152.75245.83153BE Street
153.53247.08154Stoddard Wells Road
​156.64252.09157Stoddard Wells Road – Bell Mountain
​160.96259.04161Dale Evans Parkway – Apple Valley
​164.82265.25165Wild Wash Road
​169.29272.45169Hodge Road
Barstow174.97281.59175Outlet Center Drive
177.90286.30178Lenwood Road
179.46288.81179
 SR 58 west – Bakersfield
180.78290.94181L Street, West Main Street (I-15 Bus. north)
182.67293.98183
 SR 247 south (Barstow Road)
183.55295.40184A
 I-40 east (Needles Freeway) – Needles, Kingman, Flagstaff		Southbound exit is via exit 184
184.08296.25184B CR 66 (East Main Street) (I-15 Bus. south)Signed as exit 184 southbound; former US 66
186.01299.35186Old Highway 58Former SR 58 west / US 91 south / US 466 west
​188.72303.72189Fort Irwin RoadServes Fort Irwin
​190.96307.32191Ghost Town RoadServes the ghost town of Calico
Yermo193.77311.84194Calico Road – Yermo
Yermo195.51314.64196Yermo Road – Yermo
Yermo196.0–
196.50		315.4–
316.24		Agricultural Inspection Station (southbound only)
​197.62318.04198Minneola Road
​205.54330.78206Harvard Road
​212.76342.40213Field Road
​216.53348.47Clyde V. Kane Rest Area
​220.72355.21221Afton Road
​229.56369.44230Basin Road
​233.37375.57233Rasor Road
Zzyzx239.31385.13239Zzyzx Road – Zzyzx
Baker244.95394.21245Baker Boulevard (I-15 Bus. north) – BakerNorthbound exit and southbound entrance; former US 91 north / US 466 east
245.70395.42246
 SR 127 north – Death ValleyModule:Jct warning: "road" parameter is deprecated
247.59398.46248Baker Boulevard (I-15 Bus. south) – BakerSouthbound exit and northbound entrance; former US 91 south / US 466 west
Halloran Springs258.74416.40259Halloran Springs Road
​264.70425.99265Halloran Summit Road
​270.29434.99Valley Wells Rest Area
Cima271.86437.52272Cima Road
​280.60451.58281Bailey Road
​285.59459.61286Nipton Road
​290.53467.56291Yates Well Road
​295.37475.35Nevada state line
1.000 mi = 1.609 km; 1.000 km = 0.621 mi

References

Footnotes
  1. ^ a b c "January 1, 2006 California Log of Bridges on State Highways". Dot.ca.gov. Retrieved 2011-11-28.
  2. ^ Millage is the entire route, including both SR 15 and I-15
  3. ^ Staf (October 31, 2002). "Table 1: Main Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways as of October 31, 2002". Route Long and Finder List. Federal Highway Administration. Retrieved November 29, 2011.
  4. ^ a b "CA Codes (shc:250-257)". Leginfo.ca.gov. Retrieved 2011-11-28. Cite error: The named reference "cafes" was defined multiple times with different content (see the help page).
  5. ^ a b c California Road Atlas and Driver's Guide (Map). Thomas Brothers. 2000. p. 214, 216. Cite error: The named reference "tg" was defined multiple times with different content (see the help page).
  6. ^ a b "California Highways: Routes 9 through 16". Retrieved 2008-05-01.
  7. ^ Caltrans District 11 Fact Sheet for SR-15 Project[dead link]
  8. ^ "California @ AARoads.com - California 15 and Interstate 15 north from Interstate 5 to California 163". Retrieved 2008-05-01.
  9. ^ California Assembly. "Section 260–284". Streets and Highways Code. Legislative Counsel of California. Retrieved November 29, 2011.
  10. ^ Cadd, Dennis (July 11, 2012). "Officially Designated Scenic Highways". California Department of Transportation. Retrieved July 18, 20012. {{cite web}}: Check date values in: |accessdate= (help)
  11. ^ a b Faigin, Daniel P. (July 18, 2012). "Routes 9 through 16". California Highways. Self-published. Retrieved July 18, 2012. [unreliable source?]
  12. ^ "Interstate 15 Express Lanes". Sandag.org. Retrieved March 31, 2012.
  13. ^ "ACR-127 CHP Officer Larry L. Wetterling and San Bernardino County Sheriff's Lieutenant Alfred E. Stewart Memorial Highway". California Legislative Information. Retrieved 22 May 2013.
  14. ^ The highway was featured on the television program Dangerous Drives (Speed), which illustrated the difficulties of patrolling the highway due to excessive speed and congestion. The 45-minute episode "Dangerous Drives - Highway Patrol" originally aired in January 2010.
  15. ^ Caltrans, p. 60
  16. ^ a b Caltrans, p. 63
  17. ^ Caltrans, p. 69
  18. ^ Caltrans, p. 67
  19. ^ Brooks, Jeanne F. (2000-01-09). "A neighborhood's rough road: Mid city's I-15 stretch to open after tortuous 40-year saga" (Fee required, reprint). The San Diego Union-Tribune. Copley News Service. Retrieved 2008-01-18.[dead link]
  20. ^ Faigin, Daniel P. (July 18, 2012). "Routes 193 through 200". California Highways. Self-published. Retrieved July 18, 2012. [unreliable source?]
  21. ^ 1955 Gousha Los Angeles district map (Map). H.M. Gousha. Retrieved November 29, 2011.[dead link]
  22. ^ 1963 Caltrans Los Angeles and vicinity map (Map). Retrieved November 29, 2011.
  23. ^ Faigin, Daniel P. (July 18, 2012). "Interstate Highway Types and the History of California's Interstates". California Highways. Self-published. Retrieved July 18, 2012. [unreliable source?]
  24. ^ Faigin, Daniel P. (July 18, 2012). "Routes 25 through 32". California Highways. Self-published. Retrieved July 18, 2012.[unreliable source?]
  25. ^ 1986 Caltrans Los Angeles and vicinity map (Map). Retrieved November 29, 2011.
  26. ^ Interstate 15 Major Improvements from Barstow to Nevada stateline (PDF) (Map). California Department of Transportation. 2004. Archived from http://www.dot.ca.gov/dist8/projects/15/I-15%20Brstw%20-STLN.revsd%206-2004%20copy.pdf the original (PDF) on September 11, 2008. {{cite map}}: Check |url= value (help); Unknown parameter |month= ignored (help)
  27. ^ a b Warring, KS (January 14, 2007). "Interstate 15 Freeway Interchanges" (PDF). California Numbered Exit Uniform System. California Department of Transportation. Retrieved 2009-02-05.
  28. ^ Bender, Mary (July 20, 2005). "Country road to get new course: Schleisman, Plans are under way to widen the artery in the high-growth area, and link it to I-15". Riverside, CA. Retrieved July 18, 2012.
  29. ^ Edwards, Andrew (July 6, 2012). "Nearly $14 million to fund Fontana interchange paves way for development". Inland Valley Daily Bulletin. Retrieved July 18, 2012.
  30. ^ "Ranchero Road Interchange Moves Forward". High Desert Business Journal. Apple Valley, CA. May 7, 2012. Retrieved July 18, 2012.
  31. ^ "Interstate 15: La Mesa & Nisqualli Road Interchange, Victorville". High Desert Business Journal. Apple Valley, CA. July 9, 2012. Retrieved July 18, 2012.
Works cited

External links

KML file (edit • help)
Template:Attached KML/Interstate 15 in California
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Interstate 15
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Nevada

Template:California Interstate Highways

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