Centerville is one of the oldest communities in what is now Fresno County having been founded as Scottsburg in 1854. The Centerville community has historically been tied to the history of the Stockton-Los Angeles Road and the Squaw Valley Road. The Squaw Valley Road would later be known as Dunlap Road and became a component of California State Route 180 in August 1934. By the 1940s the corridor was renamed Kings Canyon Road in reference to Kings Canyon National Park. For the majority of the life of California State Route 180 in Centerville, it has not strayed far from Kings Canyon Road. This changed in 2020 when California State Route 180 was relocated onto the Kings Canyon Expressway. This blog serves as an overview of the history of California State Route 180 and general evolution of highways in Centerville. California State Route 180 can be seen passing through Centerville and Minkler below on the 1935 Division of Highways map of Fresno Count...
Union Road is an approximately five-mile-long commuter highway which connects California State Routes 156 and 25 near the city of Hollister. Union Road was first developed as part of an access road which connected San Juan Bautista with Bird Creek Road (now Cienega Road) near the San Benito River. In the early 2000s the corridor of Union Road was extended east over the 1959-era San Benito River Bridge (formerly part of Cienega Road) to California State Route 25. Modern Union Road has emerged as a major commuter route for traffic departing Hollister westward to the Monterey Peninsula. The 1959-era San Benito River Bridge was recently replaced in 2025 with a modernized span designed to carry nearly 11,000 vehicles a day. Part 1; the history of Union Road Union Road was initially developed as a connector from Cienega Valley to San Juan Bautista (in conjunction with Bird Creek Road). The corridor in modern times now serves as a cutoff between Califo...