I-215 highlighted in red
|Auxiliary route of I-15|
|Defined by Streets and Highways Code § 515|
|Maintained by Caltrans|
|Length||55.060 mi (88.610 km)|
|History||1960s as a highway, 1982 as a number|
|South end||in Murrieta|
| in Perris|
/ in Riverside
in San Bernardino
in San Bernardino
|North end||in San Bernardino|
|Counties||Riverside, San Bernardino|
Interstate 215 (I-215) is a 54.5-mile-long (87.7 km) north-south Interstate Highway in the Inland Empire region of the Greater Los Angeles urban area in Southern California. It has portions designated as the Barstow, Escondido, and Armed Forces Freeways. I-215 is a bypass auxiliary route of I-15, running from Murrieta to northern San Bernardino. While I-215 connects the city centers of both Riverside and San Bernardino, its parent I-15 runs to the west through Corona and Ontario.
Part of I-215 was once signed as Interstate 15E (I-15E), but this was changed in 1974 as almost all of the Interstates around the country with directional suffixes were eventually renumbered or eliminated.
The southern terminus of I-215 is at the junction of I-15 in the city of Murrieta, in southwestern Riverside County. It then runs north through Menifee and Perris and along March Air Reserve Base before joining State Route 60 (SR 60) near Moreno Valley.
I-215 overlaps with SR 60 for about 5 miles (8.0 km) in Riverside and splits from it at SR 91, where it then travels through Colton, Grand Terrace and San Bernardino before rejoining I-15 near the small San Bernardino neighborhood of Devore.
This route is an alternative to I-15 for drivers traveling from Phoenix, Las Vegas, or San Bernardino, to the San Diego metropolitan area. This route offers more of a distance advantage since it is an alternative to I-15's alignment that is about 10 miles (16 km) to the west of, and roughly parallel to, I-215. The distance between the two I-15/I-215 junctions is about 6 miles (9.7 km) shorter using I-215 rather than I-15.
However, the traffic and time "advantage" on I-215 is limited by three factors: the segment between the I-15/I-215 "Devore junction" and San Bernardino only has two lanes in each direction (on the other hand, I-15 has four), it is co-signed with SR 60 through Riverside, and that, while there are three lanes in each direction between Murrieta Hot Springs Road and SR 60, each city along this part of the corridor is undergoing rapid population growth, which has contributed to increased traffic congestion during and outside of peak hours.
I-215 is also used by local residents as the major north-south route for the urbanized portions of the San Bernardino-Riverside-Ontario metropolitan area. (I-15 serves a similar function in the western portion of the metropolitan area; the two are the only continuous north-south freeways in the area.)
I-215 is part of the California Freeway and Expressway System, and is part of the National Highway System, a network of highways that are considered essential to the country's economy, defense, and mobility by the Federal Highway Administration. I-215 is eligible for the State Scenic Highway System, but it is not officially designated as a scenic highway by the California Department of Transportation. On January 24, 1957, the State Highway Commission defined the Escondido Freeway as what is now Routes 15 and 215 from Route 805 to Route 91. This entire segment was previously Route 395 when it was named. From the SR 60/SR 91 interchange in Riverside to I-10 near San Bernardino, the highway is known as the Riverside Freeway. Between Highland Avenue in San Bernardino and its northern terminus, I-215 is named the Barstow Freeway. Unofficially, I-215 is known as the Armed Forces Freeway between SR 60 and I-15, given its proximity to the March Air Reserve Base.
The highway (not an Interstate) that is currently I-215 first opened in 1963 as part of U.S. Route 395 (US 395). The "mileposts" in Riverside County reflect this since they do not start at zero at the I-15 interchange in Murrieta. In circa 1968, U.S. 395 was renumbered as I-15 (the original proposed route, as SR 71's proposed number was I-15W/SR 31 Hamner-Milliken). This segment of US 395 was again renumbered in 1972 as (Temporary) I-15E. Next in 1974, this route was renumbered as State Route 194. Next in 1982, this route was renumbered as I-215 north of SR 60, and as State Route 215 south of SR 60. Once SR 215 was upgraded to Interstate Highway standards, it became part of I-215 in 1994. Prior to its upgrade to Interstate standards, there were traffic signals at SR 74, as well as at Alessandro Boulevard (in Moreno Valley); two railroad crossings had also intersected the I-215 expressway at SR 74 and south of Cactus Avenue at then-March Air Force Base.
Due to the fact that the I-215 designation was overlaid upon existing freeways between the southern junction with SR 60 and the city of San Bernardino, the SR 60/SR 91/I-215 interchange in the city of Riverside has been widely known for its confusing nature concerning the numbering of I-215. While SR 60 continues east-and-west through this interchange, and SR 91 continues southwest (and formerly to the north), the I-215 designation continues away from this interchange on SR 60 east and the former northern portion of SR 91 (now solely numbered I-215). Travelers following I-215 in either direction need to "change freeways" at this interchange, instead of just following through lanes. The interchange was reconstructed to include some high-speed flyovers, one of which carries I-215 southbound traffic. In addition, when I-215 temporarily co-signs SR 60 in Riverside, the mileposts for I-215 supersede mileposts for SR 60. Motorists traveling east-west on SR 60 must begin counting exits at a new number, in the reverse order, during the I-215 overlap.
A joint project between Caltrans and SANBAG of San Bernardino County to widen I-215 between Orange Show Road and University Parkway in San Bernardino began in 2007. With its completion, the project added one general use lane and one carpool lane in each direction, bringing the total number of lanes from six to 10 lanes across. The 7.5-mile, $723 million project included the reconstruction of all underpasses and overpasses within the project as well as connector ramps between I-215 and SR 210. This major expansion and revitalization project will help reduce congestion and improve traffic flow on this freeway that serves as a gateway to the Victor Valley, Riverside County, Orange County, Los Angeles County and points beyond. The widening was completed in late 2013, and all construction signage and equipment were completely removed by Spring of 2014.
Many improvements are in the works along the entire length of the Interstate 215 corridor. Several interchanges are planned to be built or are currently being widened and/or reconfigured, such as the interchanges at Scott Road in Menifee and Barton Road in Grand Terrace. The interchange at University Parkway in San Bernardino is planned to be converted into a diverging diamond interchange. Long-range plans include adding a carpool lane in each direction on a 10.75-mile section of I-215 between Nuevo Road in Perris and SR 60 near Moreno Valley. There are also plans to connect I-215 at its southern terminus to a planned collector-distributor system on I-15 near the Temecula-Murrieta border, providing access to interchanges at French Valley Parkway and Winchester Road.
Except where prefixed with a letter, postmiles were measured on the road as it was in 1964, based on the alignment of US 395 as it existed at that time, and do not necessarily reflect current mileage. R reflects a realignment in the route since then, M indicates a second realignment, L refers an overlap due to a correction or change, and T indicates postmiles classified as temporary (for a full list of prefixes, see the list of postmile definitions). Segments that remain unconstructed or have been relinquished to local control may be omitted. The numbers reset at county lines; the start and end postmiles in each county are given in the county column.
|Murrieta||R9.00||south (Temecula Valley Freeway) - Temecula, San Diego||Southbound exit and northbound entrance; southern terminus; I-15 exit 63 northbound|
|R9.51||1||To north / Murrieta Hot Springs Road - Lake Elsinore|
|R10.65||2||Los Alamos Road|
|R12.51||4||Clinton Keith Road|
|Murrieta-Menifee line||R14.50||6||Keller Road||Construction to begin in 2020|
|R20.84||12||McCall Boulevard -- Sun City|
|23.54||15||east - Hemet||South end of SR 74 overlap|
|26.31||17||west (4th Street) - Lake Elsinore, Perris||North end of SR 74 overlap|
|27.23||18||D Street||Southbound exit and northbound entrance|
|R29.50||21||Placentia Avenue||Construction to begin in early 2020|
|R30.93||22||Ramona Expressway, Cajalco Expressway -- Lakeview, San Jacinto|
|R32.33||23||Harley Knox Boulevard||Formerly Oleander Avenue|
|March Air Reserve Base||R34.17||25||Van Buren Boulevard -- Riverside National Cemetery, March Field Air Museum|
|R35.76||27A||Cactus Avenue, Meridian Parkway -- March JARB, Moreno Valley, Arnold Heights||Signed as exits 27A (Cactus Avenue east) and 27B (Cactus Avenue west/Meridian Parkway) southbound|
|Riverside-Moreno Valley line||R36.42||27B||Alessandro Boulevard||Signed as exit 27C southbound|
|R37.44||28||Eucalyptus Avenue, Eastridge Avenue|
|Riverside||R38.34||29||east (Moreno Valley Freeway) - Beaumont, Indio||South end of SR 60 overlap; SR 60 exit 58 westbound|
|R38.92||30A||Box Springs Road, Fair Isle Drive -- Box Springs||Northbound exit is via SR 60 west|
|39.48||30B||Central Avenue, Watkins Drive|
|40.28||31||El Cerrito Drive||Closed|
|40.98||32A||Martin Luther King Boulevard||Signed as exit 31 northbound|
|41.49||32B||University Avenue||Signed as exit 32 northbound|
|42.16||33||Blaine Street, 3rd Street|
|43.27||34B||west (Riverside Freeway) - Riverside, Beach Cities||Left exit southbound; SR 91 exit 65B-C; former US 91 south|
|43.27||34C||west (Pomona Freeway) - Pomona, Los Angeles||North end of SR 60 overlap; left exit northbound; SR 60 exit 53B eastbound|
|45.01||36||Center Street -- Highgrove|
|Colton||0.40||37||La Cadena Drive, Iowa Avenue -- Colton|
|Grand Terrace||1.31||38||Barton Road|
|Colton||2.69||39||Mt. Vernon Avenue, Washington Street||Mount Vernon Avenue was old US 66/US 91/US 395|
|4.05||40||(San Bernardino Freeway) - Redlands, Indio, Los Angeles||Signed as exits 40A (east) and 40B (west) northbound; former US 70/US 99; I-10 exit 72|
|San Bernardino||5.03||41||Orange Show Road, Auto Plaza Drive|
|5.58||42A||Inland Center Drive -- Inland Center Mall|
|6.06||42B||Mill Street -- San Bernardino Airport|
|6.79||43||2nd Street, 3rd Street -- San Bernardino Civic Center|
|7.18||44A||west (5th Street) - San Bernardino Civic Center||Signed as exit 44 southbound|
|8.08||44B||Base Line Street||Signed as exit 45 southbound|
|8.60||45A||To east (SR 259) - Highland, Running Springs||Northbound exit and southbound entrance; SR 210 exit 75B westbound|
|9.36||46A||Highland Avenue||Southbound exit is via exit 46B|
|9.72||46B||Mt. Vernon Avenue, 27th Street|
|10.05||46C||west (Foothill Freeway) - Pasadena, Redlands||Future I-210; SR 210 exit 74; former SR 30|
|11.63||48||University Parkway -- Cal State San Bernardino, University District||Former SR 206 north|
|14.09||50||Palm Avenue, Kendall Drive -- Verdemont||Former SR 206 south|
|17.32||54A||Devore Road -- Devore||Signed as exit 54 southbound; former US 66 west|
|17.75||54B||south (Ontario Freeway) - Los Angeles, San Diego||Northbound exit and southbound entrance; I-15 exit 123|
|17.75||north (Mojave Freeway) - Barstow||Northbound exit and southbound entrance; northern terminus|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi|