Calaveras Cement

Company History: The Lodi Lumber Company bought one of the first carloads of Calaveras Cement. The first shipment was delivered to Lodi on June 14, 1926, one year after the plant was built on the huge limestone deposit by the Kentucky House trading post near San Andreas.

First, the hilly San Andreas region was known for its role in the Gold Rush. Beginning In the 1920s, its notoriety came from cement. Although less glamorous than gold but still lucrative, huge deposits of high-grade limestone and shale were discovered in the hills near the trading post called Kentucky House, two miles south of San Andreas in Calaveras County.

With the Southern Pacific branch line completed, construction could begin on the cement plant. Ground was broken on May 1, 1925. Just over a year later, the Calaveras Cement Company plant opened with 15,000 guests attending a barbecue. The event included railroad rides and inspection tours of the wet-process cement mill that produced up to 3,000 barrels of cement a day.

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