2010
3521 Central Avenue
(Google Maps)
1951
Jack in the Box, San Diego
(Jack in the Box, Inc.)
1950s
Jack in the Box, Mark I
(ModernSanDiego.com)
1960s
Jack in the Box, Mark II
(ModernSanDiego.com)
1960s
Jack in the Box, Mark III
(ModernSanDiego.com)
March 2011
3521 Central Avenue
Dating from the late 1960s, one of the oldest Jack in the Box fast food restaurants in Riverside is no more. Though certainly not a structure worthy of historic merit, we thought we'd take this opportunity to look back at the whimsical designs of the original Jack in the Box (JITB) restaurants.
According to the company's website, the first JITB was opened by Robert Oscar Peterson in San Diego in 1951. An outgrowth of Peterson's earlier "drive-in" diners called Topsy's and later Oscar's, JITB is said to have pioneered the use of drive-thru service using an intercom ordering system. (Those who lived in Southern California prior to 1980, may remember placing orders at JITB via a "talking clown.")
By 1966, the chain had grown to 180 locations, mostly in California and the Southwestern U.S. In 1968, Peterson -- whose Foodmaker, Inc. ran the restaurants -- sold the chain to Ralston Purina Co., who remained the owner until 1985.
It was during Ralston Purina's ownership in which "Jack" -- the clown atop the drive-thru menus -- was "blown up" as part of an extensive television campaign in 1980. The makeover was an effort to broaden the chain's appeal with adults. In 1994, after several years in isolation, "Jack" returned as the chain's spokesperson during the "Jack's back" advertising campaign, a role he retains to this day.
Back to the two oldest Riverside locations. The city's planning database indicates permits for 3521 Central Avenue (near the Riverside Plaza) and 3434 Fourteenth Street (downtown) were issued in 1968. According to the permits, both locations were two stories in height with 1175 and 1776 square feet respectively (though they look to be the same size) and a value of $24,000 each.
The architect listed on the permit for the downtown location (and presumably, the Plaza location as well) is Donald D. Goertz. A quick search of the Internet found an American Institute of Architects (AIA) entry for Donald Dean Goertz, who's also listed in the AIA's archives as being a staff architect for Foodmaker, Inc. beginning in 1967.
Based upon what we've found, the earlier JITBs offered both walk-up and drive-thru service, but no interior dining. The exterior designs used bright colors and fonts popular during the 1950s and 1960s to emphasize the drive-thru and overall "box" aspect of the JITB name. A San Diego website specializing in mid-century architecture lists Russell Forester as the architect for these early designs.
We're not clear on whether the two Riverside locations built in 1968 sported these original whimsical designs. It's likely they didn't, primarily due to the different architects used. However, it's possible they may have sported at least some form of the earlier designs -- particularly that of the Mark III concept -- as their current "mansard" look conforms to that found on many early SoCal JITB locations since remodeled (Chula Vista, San Clemente, San Diego). Maybe someone can confirm what the original designs for the two Riverside locations were like?
As for the Central Avenue location, we were unable to confirm that a new JITB will replace the now-demolished structure. However, the demolition permit seems to indicate a new JITB is indeed on its way. Browsing the company's website, we found what appears to be the latest prototype (notice the use of "Santee" indicating the restaurant's location -- could this be a future JITB motif?).
Update 04/16: Construction of a new JITB is well underway.
Update 08/06: The new JITB reopened in late July.
* Courtesy of www.burningsettlerscabin.com
Sources: Jack in the Box Inc., City of Riverside, ModernSanDiego.com, Wikipedia, American Institute of Architects (AIA), Los Angeles Times

Recent Comments
Rene on Sharing a bit of library love: Am I the only one who thinks it's hideous? It's no ...
RXSQ on Behind the scenes: @Jason -- Yes, it's usually in stock at the Rivers ...
Jason on Behind the scenes: Is Riverside - Then & Now available at Barnes and ...
RXSQ on Latest plans for downtown library: renovation, not demolition: @Michael -- Thanks for the comment and we agree 10 ...