In the Belltown area of Riverside, CA, I found a rather interesting concrete roadway on 24th St. It appears to be a part of a former alignment of either Rubidoux Blvd, Market Street, or combination of the two. It dates to August 1931 and is in very good shape. What I found most interesting was the curve at Avalon St, which seemed to suggest its former importance as a Riverside to Colton roadway.

Why this roadway was built and when it was bypassed may remain a mystery for some time, however, it does show that you can still find old treasures like this in Southern California.

UPDATED 2021:

According the the magazine, California Highways and Public Works January-February 1948, Crestmore Road, as it was called then, was realigned under a Federal Aid contract. The construction began March 19, 1947 and was completed August 25, 1947. This work only involved the segment in Riverside County and the new alignment was paved with concrete.