The Acton Grade Bridge is a deck plate span crossing the East Fork Chowchilla River on Madera County Road 810 (formerly Acton Grade Road). The bridge likely was installed during the early 1970s to replace the earthen ford which once connected the California Gold Rush communities of Bailey Flats and Grub Gulch. The name of the structure is an homage to late nineteenth century property owner Mary E. Acton who granted an easement to construct what is now Road 810. Road 810 itself is an approximately four-mile dirt road which connects Road 800 (formerly Bailey Flats Road) southeast to Road 600 (formerly Grub Gulch Road).
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