The line, among the electric railway's final expansions,[1] was not originally intended for passenger service unless a connection to Orange was completed.

[a][2][3] Pacific Electric spent $425,000 on the extension from La Habra to Fullerton ($10.4 million in 2024 adjusted for inflation).

[4] The route was not a significant source of passenger traffic, but did generate revenue by hauling citrus fruit from the area.

[4][9] One of the more prominent landmarks on the line was a concrete arch bridge over Harbor Boulevard that was emblazoned with a message welcoming visitors to Fullerton.

From there, the double track line ran easterly, in private way between dual roadways of Randolph Street, through Huntington Park, Vernon, Bell, and Maywood to reach the Los Angeles River.

[9][11] The right of way then turned south to cut through the Fullerton College campus on what was called "Boxcar Avenue".