San Bernardino Freeway
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.svg/70px-I-10_(CA).svg.png) .svg/84px-I-215_(CA).svg.png) |
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| San Bernardino Freeway |
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| Maintained by Caltrans | |||||||||||||
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| History: | Opened 1935-ca. 1960; named 1954 | ||||||||||||
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| West end: | .svg/23px-US_101_(CA).svg.png){kind=small} US 101 in Los Angeles |
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| Major junctions: |
.svg/24px-I-605_(CA).svg.png){kind=small} I-605 near El Monte  SR 57 / SR 71 in Pomona.svg/20px-I-15_(CA).svg.png){kind=small} I-15 in Ontario |
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| East end: | .svg/24px-I-215_(CA).svg.png){kind=small} I-215 in San Bernardino |
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| System: | Southern California freeways | ||||||||||||
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The San Bernardino Freeway is the name of an approximately 60-mile (95 km) long segment of Interstate 10 (I-10) in Southern California between the cities of Los Angeles and San Bernardino. It is one of the principal development axes of Greater Los Angeles, with numerous suburban communities along its route. The name officially turns north near Colton onto I-215 to Highland Avenue (former SR 30) north of downtown San Bernardino, where the Barstow Freeway continues northwest,[1][2][3][4] but this segment of freeway is not commonly known by that name.[citation needed]
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[edit] Route description
Starting at the Santa Ana Freeway, it travels east through the San Gabriel Valley and the Pomona Valley. It then crosses the Los Angeles/San Bernardino county line and enters the Inland Empire. At the Interstate 215 interchange located in San Bernardino this segment of Interstate 10 ceases to be the "San Bernardino Freeway". Beyond this interchange, I-10 continues eastward through the communities of Redlands and Loma Linda and leads southeast into Riverside County. Following its traverse of the San Gorgonio Pass it continues eastward to the California/Arizona stateline.
Major alternate east-west routes are the Foothill Freeway (I-210), the Pomona Freeway (SR 60), and the Riverside Freeway (SR 91).
[edit] History and features
The precursor to the San Bernardino Freeway, the Ramona Expressway, was built in 1944 to connect the then-new Kaiser Steel mill in Fontana to war industries in downtown Los Angeles. The road was so named because it replaced Ramona Boulevard through the western San Gabriel Valley. The relatively primitive nature of the road can be seen in the architecture of the onramps and offramps to roads in the western San Gabriel Valley, which require sharp, dangerous turns at low speed in order to enter or exit the freeway. In the Eastern San Gabriel and Pomona Valleys, many of the older ramps were replaced over the years, because land was still readily available. The entire freeway opened up in 1957 which was originally signed as US 60 and 99. The city of San Bernardino changed out the green plates with Interstate 10 in 1964.
The massive volume of commuters traveling between Los Angeles and its eastern suburbs, and the heavy commercial truck traffic transporting goods/materials between the ports of Los Angeles and Long Beach and the railroad yards and warehouses in the Inland Empire, make the San Bernardino Freeway one of the busiest freeway corridors in the United States. In response to severe congestion in the early 1970s, the California Department of Transportation, otherwise known as Caltrans, renovated the freeway segment between the downtown Los Angeles and El Monte to incorporate one of the earliest examples of high-occupancy vehicle (HOV) or "carpool" lanes, the El Monte Busway.
The San Bernardino Line of the Metrolink runs in the freeway's center median between El Monte and I-710, then travels along the north side of the freeway to the East Los Angeles Interchange.
Beginning in the 1990s, additional HOV lanes have been added (one lane per direction) to the freeway segment between the Kellogg interchange complex in Pomona and the interchange with the Ontario Freeway, Interstate 15 (I-15) in Ontario.
[edit] Legal definition
The San Bernardino Freeway is Route 10 from Route 101 to Route 215, as named by the State Highway Commission on November 18, 1954.[5]
[edit] 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.
| County | Location | Postmile [6][7][8] |
#[9] | Destinations | Notes |
|---|---|---|---|---|---|
| Los Angeles LA S0.00-S0.66 18.39-48.27 |
Los Angeles | S0.00 | 19B | US 101 north (Santa Ana Freeway) – Los Angeles |
Westbound exit and eastbound entrance |
| S0.00 | Mission Road | Westbound exit and eastbound entrance | |||
| S0.66 18.39 |
19B | .svg/20px-I-5_(CA).svg.png){kind=small} I-5 north (Golden State Freeway) – Sacramento |
Westbound exit and eastbound entrance | ||
| West end of I-10 overlap | |||||
.svg/20px-I-10_(CA).svg.png){kind=small} I-5 south / I-10 west (Santa Ana Freeway / Santa Monica Freeway via Golden State Freeway) |
Westbound exit and eastbound entrance | ||||
| 18.52 | 19A | State Street | No exit number eastbound | ||
| 19.07 | 19C | Soto Street | Eastbound exit is via State Street | ||
| 20.22 | 20A | City Terrace Drive | Eastbound exit and westbound entrance | ||
| 20.85 | 20B | Eastern Avenue | Westbound exit is part of exit 21; serves CSU Los Angeles | ||
| Monterey Park | 21.38 | 21 | .svg/24px-I-710_(CA).svg.png){kind=small} I-710 (Long Beach Freeway) / Valley Boulevard – Long Beach |
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| Alhambra | 22.31 | 22 | Fremont Avenue | ||
| 23.33 | 23A | Atlantic Boulevard – Monterey Park | |||
| 23.99 | 23B | Garfield Avenue – Alhambra | |||
| 24.83 | 24 | New Avenue – Monterey Park | |||
| Rosemead, San Gabriel |
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| 25.33 | 25A | Del Mar Avenue – San Gabriel | |||
| 25.84 | 25B | San Gabriel Boulevard | |||
| Rosemead | 26.34 | 26A | Walnut Grove Avenue | ||
| 26.86 | 26B |  SR 19 (Rosemead Boulevard) – Pasadena |
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| El Monte, Rosemead |
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| 27.96 | 27 | Baldwin Avenue, Temple City Boulevard – Rosemead | |||
| El Monte | |||||
| 28.67 | 28 | Santa Anita Avenue – El Monte | |||
| 29.43- 29.55 |
29 | Peck Road, Valley Boulevard | Signed as exits 29A (Peck Road south) and 29B (Peck Road north, Valley Boulevard) | ||
| 29.90 | 29C | Peck Road north | Westbound exit and eastbound entrance | ||
| 30.58 | 30 | Garvey Avenue, Durfee Avenue | Westbound exit and eastbound entrance | ||
| Baldwin Park | 31.15 | 31A | I-605 (San Gabriel River Freeway) |
Signed as exits 31A (south) and 31B (north) eastbound | |
| 31.54 | 31B | Frazier Street | Signed as exit 31C eastbound; no eastbound entrance | ||
| 32.22 | 32A | Baldwin Park Boulevard – Baldwin Park | |||
| 32.66 | 32B | Francisquito Avenue – La Puente | No eastbound entrance | ||
| 33.35 | 33 | Puente Avenue – Industry | |||
| West Covina | 34.46 | 34A | Pacific Avenue, West Covina Parkway | Signed as exit 34 eastbound | |
| 34.85 | 34B | Sunset Avenue – West Covina | Westbound exit only | ||
| 35.40 | 35 | Vincent Avenue, Glendora Avenue | |||
| 36.50 | 36 |  SR 39 (Azusa Avenue) |
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| 37.48 | 37A | Citrus Street – Covina | |||
| 38.01 | 37B | Barranca Street | |||
| 38.51 | 38A | Grand Avenue | |||
| 38.97 | 38B | Holt Avenue | |||
| 40.46 | 40 | Via Verde | |||
| 42.10 | 41 | Kellogg Drive – Cal Poly Pomona | |||
| Pomona, San Dimas |
42.44 | 42A | .svg/24px-I-210_(CA).svg.png){kind=small} SR 57 (Orange Freeway) to I-210 – Santa Ana |
Signed as exit 42 westbound | |
| 42.66 | 42B | SR 71 south (Chino Valley Freeway) – Corona |
Eastbound exit and westbound entrance | ||
| Pomona | 43.66 | 43 | Fairplex Drive – La Verne | Westbound exit is part of exit 44 | |
| 44.19 | 44 | Dudley Street | |||
| 45.28 | 45A | White Avenue | Eastbound exit and westbound entrance | ||
| 45.73 | 45B | Garey Avenue, Orange Grove Avenue – Pomona | Signed as exit 45 westbound | ||
| 46.41 | 46 | Towne Avenue | |||
| Claremont | 47.74 | 47 | Indian Hill Boulevard – Claremont | ||
| San Bernardino SBD 0.00-R24.24 215 4.05-9.36 |
Montclair | 0.68 | 48 | Monte Vista Avenue | |
| 1.23 | 49 | Central Avenue | |||
| Ontario, Upland |
2.37 | 50 | Mountain Avenue – Mount Baldy | ||
| 3.47 | 51 |  SR 83 (Euclid Avenue) – Ontario, Upland |
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| Ontario | 5.24 | 53 | 4th Street | ||
| 6.10 | 54 | Vineyard Avenue | |||
| 6.80 | 55A | Holt Boulevard | Westbound exit and eastbound entrance | ||
| 7.16 | 55B | Archibald Avenue – Ontario Airport | Signed as exit 55 eastbound | ||
| 8.16 | 56 | Haven Avenue | |||
| 9.18 | 57 | Milliken Avenue | |||
| 9.94 | 58 | I-15 – San Diego, Barstow, Las Vegas |
Signed as exits 58A (north) and 58B (south) eastbound | ||
| 11.13 | 59 | Etiwanda Avenue, Valley Boulevard | |||
| Fontana | 13.17 | 61 | Cherry Avenue | ||
| 15.18 | 63 | Citrus Avenue | |||
| Fontana | 16.22 | 64 | Sierra Avenue – Fontana | ||
| R18.49 | 66 | Cedar Avenue – Bloomington | |||
| Rialto | 19.97 | 68 | Riverside Avenue – Rialto | ||
| Colton | 20.97 | 69 | Pepper Avenue | ||
| R21.96 | 70A | Rancho Avenue | |||
| R22.71 | 70B | 9th Street – Downtown Colton | |||
| R23.25 | 71 | Mt. Vernon Avenue, Sperry Drive | |||
| R24.24 215 4.05 |
72 | I-215 south (Riverside Freeway) – Riverside |
No exit number westbound | ||
| East end of I-10 overlap; west end of I-215 overlap | |||||
| 40 | I-10 east – Indio, Redlands, Palm Springs |
No exit number eastbound | |||
| See I-215 | |||||
| San Bernardino | 215 8.60 | 45A |  To SR 210 east (SR 259) – Highland, Mountain Resorts |
Eastbound exit and westbound entrance | |
| 215 9.03 | 45B | Muscupiabe Drive | Eastbound exit only | ||
| 215 9.36 | 46A | To SR 210 west / Highland Avenue |
Westbound exit is via exit 46B | ||
| 215 9.72 | 46B | Mt. Vernon Avenue, 27th Street | |||
| 215 9.72 | I-215 north (Barstow Freeway) – Barstow |
Continuation beyond Highland Avenue | |||
[edit] References
- ^ California Highways and Public Works, v. 37-38, 1958-59, p. 27: "The California Highway Commission has named this route the Barstow Freeway from its junction with the San Bernardino Freeway at Highland Avenue in the center of San Bernardino to the Nevada state line southwest of Las Vegas."
- ^ Thirteenth Annual Report to the Governor on the Activities of the Division of Highways for the Year July 1, 1958 to June 30, 1959, p. 14: "A few months later the freeway entrance into San Bernardino from Devore was also opened, tying into the San Bernardino Freeway at Highland Avenue."
- ^ Pacific Road Builder and Engineering Review, v. 97-100, 1961-62, p. 38: "Widen San Bernardino Freeway to six lanes between Riverside Freeway in Colton and Third Street in San Bernardino, and widen shoulders from Third Street to Base Line Street"
- ^ American Automobile Association, San Bernardino, California Triptik page (895), 1975
- ^ 2007 Named Freeways, Highways, Structures and Other Appurtenances in California. Caltrans, 62. Retrieved on 2007-03-28.
- ^ California Department of Transportation, State Truck Route List (XLS file), accessed January 2008
- ^ California Department of Transportation, Log of Bridges on State Highways, July 2007
- ^ California Department of Transportation, All Traffic Volumes on CSHS, 2005 and 2006
- ^ California Department of Transportation, California Numbered Exit Uniform System, I-10 Eastbound and I-10 Westbound, accessed January 2008
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