Permanente Quarry

The Permanente Quarry and cement plant is in an unincorporated area of Santa Clara County, California, just west of Cupertino. The limestone and aggregate mining operation and cement plant is owned by Lehigh Southwest Cement, a subsidiary of Heidelberg Cement. Limestone was mined beginning in 1902 but remained a small operation until 1939 when it was purchased by Henry J. Kaiser to supply the 5.5 million barrels of cement to build Shasta Dam. With increased production Kaiser supplied all of the cement used by the Navy in the Pacific Theater of World War 2. At 7 million barrels, it was more cement than the Shasta Dam project. Roughly 70 percent of the cement used in the communities of Santa Clara County was acquired from the cement plant.

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Wikimedia, Wikidata
quarry, United States,

Location: 37.3196, -122.114, KML, Cluster Map, Maps,
1 places

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Permanente Quarry ⓘ
limestone quarry in Santa Clara County, California, USA

Frameless

Natural "Permanente Ridge" buried by waste material by Lehigh Southwest Quarry 2012-07

Hanson Permanente quarry

Kaiser-Permenente open pit mine, above Cupertino DSC 0461 alr5 (14737800500)

Permanente Quarry aerial

Type	Subtype	Description	Notes	Source

organisation	business	Kobold Metals	software, mining, business	Wikidata
site	mine	Permanente Quarry	quarry	Wikidata
commons	image	Natural "Permanente Ridge" buried by waste material by Lehigh Southwest Quarry 2012-07		Commons
commons	image	Natural "Permanente Ridge" buried by waste material by Lehigh Southwest Quarry 2012-07		Commons
commons	image	Hanson Permanente quarry		Commons
commons	image	Hanson Permanente quarry		Commons
commons	image	Kaiser-Permenente open pit mine, above Cupertino DSC 0461 alr5 (14737800500)		Commons
commons	image	Permanente Quarry aerial		Commons
commons	image	Permanente Quarry aerial		Commons

Permanente Quarry

From Underfoot

Q7169296