California State Route 83 is a 11.1-mile State Highway located entirely in San Bernardino County. California State Route 83 is presently defined as beginning at California State Route 71 and ending to the north at Interstate 10 in Upland. California State Route 83 is signed on Euclid Avenue through its entire routing. Pictured above as the blog cover is signage of California State Route 83 from eastbound Foothill Boulevard along former US Route 66 in Upland on a segment of the highway which was relinquished in 2006.
The current California State Route 83 (CA 83) is the second highway to be designated with the number. For background on the original CA 83 please refer to the below blog:
The history of modern CA 83 begins in 1933 when the State removed the barriers which prevented the Division of Highways from maintaining mileage within incorporated cities. This measure led to a large influx of urban mileage being added to the State inventory during 1933. One such routing was Legislative Route Number 192 (LRN 192) defined by Legislative Chapter 767:
"LRN 77 via Euclid Avenue to LRN 190 in Upland"
13 miles of Euclid Avenue is announced as being annexed as LRN 192 in the April 1933 California Highways & Public Works.
LRN 192 thusly first appears on the 1934 Division of Highways Map. LRN 192 was not assigned one of the original Sign State Routes which were announced in the August 1934 California Highways & Public Works.