This detail of J80, north view Apr. 4, 1957, shows the SN separating from the freeway at the north side of Treat Blvd., the site of the present day Pleasant Hill BART station. The SN is seen crossing the SP line, and then meeting the Walnut Creek at the very edge of the right upper corner, just short of Bancroft Road, also the site of a prior SN station.
J85-Copyright California Department of Transportation, Detail C198-2,
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