Kellogg Interchange
Encyclopedia
The Kellogg Interchange complex is a freeway interchange in Southern California
. The interchange is located at the boundary between the cities of San Dimas
and Pomona
about 25 miles (40.2 km) east of downtown Los Angeles
. It is named for the nearby W. K. Kellogg Ranch, now home to Cal Poly Pomona.
(San Bernardino Freeway
), SR 57
(Orange Freeway), and SR 71
(Chino Valley Freeway).
Note, however, there is not complete freedom of movement within the interchange. Traffic flowing into it on the Chino Valley Freeway (SR 71) cannot leave it on all of the others. There is no direct connector between the northwestbound Chino Valley Freeway and the southbound Orange Freeway (SR 57), or the eastbound San Bernardino Freeway
(I-10); nor is there a direct connector between the northbound Orange Freeway, or the westbound San Bernardino Freeway, to the southeastbound Chino Valley Freeway. Travelers wanting to make these transitions must use alternate routes. Naturally, travelers from outside the Los Angeles area may not know this and will find this confusing. In any event, this is not a significant negative factor as this segment of the Chino Valley Freeway is not as heavily traveled as the other two freeways.
Occasionally Kellogg Hill is used to describe the interchange; however, most traffic reporters properly describe Kellogg Hill as the actual hill that the San Bernardino Freeway climbs between West Covina
and the Kellogg Interchange. This hill is often backed up due to slow trucks, especially on the westbound side where there is no additional truck lane. The crest of the hill is near the Via Verde onramp in San Dimas.
connected with the Kellogg Interchange; that section of the 210 north of the interchange no longer exists as it has been resigned as State Route 57.
Generally, transitioning from one freeway to another is efficient and safe because at the time of the interchange's construction over 30 years ago it was not encumbered by existing, surrounding development in the immediate vicinity. Therefore, freeway alignments are straight and the transition roads that connect them have predictable, constant radii.
Southern California
Southern California is a megaregion, or megapolitan area, in the southern area of the U.S. state of California. Large urban areas include Greater Los Angeles and Greater San Diego. The urban area stretches along the coast from Ventura through the Southland and Inland Empire to San Diego...
. The interchange is located at the boundary between the cities of San Dimas
San Dimas, California
San Dimas is a city located in the San Gabriel Valley, in Los Angeles County, California. As of the 2010 census, the city had a total population of 33,371. The city historically took its name from San Dismas Canyon in the San Gabriel Mountains above the northern section of present day San Dimas...
and Pomona
Pomona, California
-2010:The 2010 United States Census reported that Pomona had a population of 149,058, a slight decline from the 2000 census population. The population density was 6,491.2 people per square mile...
about 25 miles (40.2 km) east of downtown Los Angeles
Los Ángeles
Los Ángeles is the capital of the province of Biobío, in the commune of the same name, in Region VIII , in the center-south of Chile. It is located between the Laja and Biobío rivers. The population is 123,445 inhabitants...
. It is named for the nearby W. K. Kellogg Ranch, now home to Cal Poly Pomona.
Description
The interchange comprises five freeway segments (i.e. there are five freeway 'paths' of travel into the complex). The three freeways that intersect here are I-10Interstate 10 in California
Interstate 10 , the major east–west Interstate Highway in the Southern United States, runs in the U.S. state of California east from Santa Monica, on the Pacific Ocean, through Los Angeles and San Bernardino to the border with Arizona...
(San Bernardino Freeway
San Bernardino Freeway
The San Bernardino Freeway, formerly known as the Ramona Freeway is a freeway in Los Angeles and Orange Counties in the southern part of the U.S. state of California. It refers to the following two segments:...
), SR 57
California State Route 57
State Route 57 , also known as the Orange Freeway, is a north–south state highway in the Greater Los Angeles Area of the U.S. state of California. It connects the interchange of Interstate 5 and State Route 22 near downtown Orange, locally known as the Orange Crush, with the Glendora Curve...
(Orange Freeway), and SR 71
California State Route 71
State Route 71 is the Chino Valley Freeway, formerly the Corona Expressway and before then the Temescal Freeway, a freeway/highway of about 15 miles in length located entirely within Southern California, United States...
(Chino Valley Freeway).
Note, however, there is not complete freedom of movement within the interchange. Traffic flowing into it on the Chino Valley Freeway (SR 71) cannot leave it on all of the others. There is no direct connector between the northwestbound Chino Valley Freeway and the southbound Orange Freeway (SR 57), or the eastbound San Bernardino Freeway
San Bernardino Freeway
The San Bernardino Freeway, formerly known as the Ramona Freeway is a freeway in Los Angeles and Orange Counties in the southern part of the U.S. state of California. It refers to the following two segments:...
(I-10); nor is there a direct connector between the northbound Orange Freeway, or the westbound San Bernardino Freeway, to the southeastbound Chino Valley Freeway. Travelers wanting to make these transitions must use alternate routes. Naturally, travelers from outside the Los Angeles area may not know this and will find this confusing. In any event, this is not a significant negative factor as this segment of the Chino Valley Freeway is not as heavily traveled as the other two freeways.
Occasionally Kellogg Hill is used to describe the interchange; however, most traffic reporters properly describe Kellogg Hill as the actual hill that the San Bernardino Freeway climbs between West Covina
West Covina, California
West Covina is a city located in Los Angeles County, California. Located some east of Downtown Los Angeles in the eastern San Gabriel Valley, it is a mostly middle class suburb of Los Angeles...
and the Kellogg Interchange. This hill is often backed up due to slow trucks, especially on the westbound side where there is no additional truck lane. The crest of the hill is near the Via Verde onramp in San Dimas.
History
Until 2002, Interstate 210Interstate 210 (California)
Interstate 210 and State Route 210 together form a contiguous highway, called the Foothill Freeway, in the Greater Los Angeles area of the U.S. state of California. The western portion of the route is an auxiliary Interstate Highway, while the eastern portion is a state highway...
connected with the Kellogg Interchange; that section of the 210 north of the interchange no longer exists as it has been resigned as State Route 57.
Generally, transitioning from one freeway to another is efficient and safe because at the time of the interchange's construction over 30 years ago it was not encumbered by existing, surrounding development in the immediate vicinity. Therefore, freeway alignments are straight and the transition roads that connect them have predictable, constant radii.