State 57 once followed Brea Blvd and Brea Canyon Blvd to Mission Blvd in Pomona. In 1998, Route 57 was extended north from I-10 to the present SR-210/I-210 junction. Signage was changed in 2002 when the Foothill Freeway was extended.
Old alignment of Hwy 57 near the Temple Ave interchange. Only one lane of the two lane concrete survives intact here.
57-60 HOV direct connection – Southbound view from my motorcycle