Alondra Boulevard was intended to be a major east-west highway, connecting Manhattan Beach with Norwalk. It was assembled from segments of various streets along the same general latitude.
In Manhattan Beach, this segment was originally known as Center Street, but is now known as Manhattan Beach Blvd, running to the city limits of Gardena, and terminating at Van Ness Ave. This segment runs north of Alondra Park, and it seems likely that the names were chosen so that the street and park would have the same name.
In Compton, this street was originally called Olive Street. It extends westward into Gardena, where it is known as 161st Street. The plan was to connect the Manhattan and Compton segments, which would have involved cutting through already developed portions of Gardena, and crossing Redondo Beach Blvd, which runs along a diagonal. The City of Gardena declined to build the connection, but the segments in the cities of Carson and Los Angeles are Alondra Blvd.
Further east, in Clearwater (now Paramount), Olive Street became State Street. The original plan was to name the whole thing Center Street, but it was changed to Alondra, perhaps a name of one of the daughters of the Dominguez family.
Artesia Bl Built as state highway 175, and posted as route 14, this street was assembled from several streets at approximately the same latitude.
The westernmost portion was originally named Gould Lane on the boundary between Hermosa Beach and Manhattan Beach. The portion between Aviation Blvd and the junction with Redondo Beach Blvd was known as Redondo Beach Blvd, or Riverside-Redondo Road, and that name continued on the present Redondo Beach Blvd.
The short segment between Redondo Beach Blvd and Hawthorne Av was new construction, built across the Pacific Electric tracks.
The portion between Hawthorne Av and Normandie Av (or maybe Vermont Av) was known either as Strawberry Street, or 174th Street.
The portion south of Compton was new construction, being built across swampy land. Much of this roadway has been upgraded to the route 91 freeway. New frontage roads were constructed between Avalon Blvd and Acacia Av, the one on the north known as "Artesia Blvd", and the one on the south known as "Albertoni St".
The portion in Long Beach was known as Artesia Avenue. At Woodruff Av in Bellflower, Artesia Avenue took a jog to the south. The original plan was to widen Hacienda St, which is the continuation of Artesia Blvd west of Woodruff Av, and then continue this diagonally to intercept the existing Artesia Blvd just west of the San Gabriel River. Instead, a diagonal connection was constructed west of Woodruff Av in Bellflower to intercept Ramona St just west of Woodruff Av. The remaining portion of the old Artesia Blvd west of Woodruff became Artesia Place.
Artesia Blvd continues to Gilbert St in Fullerton, although the (old) state highway 175 ended at Manchester Ave.