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Major Matthews collection Coquitlam (B.C.)
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[Headgate valve house for Coquitlam Dam]

Photograph shows building containing valves used to control the outflow from the lake during dam construction. Photograph also shows rock cut for the permanent overflow spillway, and the riprap facing of the upstream side of the dam.

[Headgate valve house for Coquitlam Dam]

Photograph shows building containing valves used to control the outflow from the lake during dam construction. Photograph also shows rock cut for the permanent overflow spillway, and the riprap facing of the upstream side of the dam.

[Two views of Coquitlam Dam and Buntzen Lake Power Plant number two construction]

Photograph negative is a copy of two photograph prints, showing: man with donkey in front of openings for hydraulic tunnels to be connected to the surge tank with penstocks for Buntzen Lake Power Plant number two; and water flowing over the spillway at the Coquitlam Dam. Negative was created in order to produce lantern slides of the two images.

[Headgate valve house for Coquitlam Dam]

Photograph shows building containing valves used to control the outflow from the lake during dam construction. Photograph also shows rock cut for the permanent overflow spillway, and the riprap facing of the upstream side of the dam.

[Two views of Coquitlam Dam construction]

Photograph negative is a copy of two photograph prints, showing: hydraulic monitor sluicing materials for dam; and view of dam from east bank, showing settling pond in middle of view, construction camp in foreground, and spillway cut in foreground. Negative was created in order to produce lantern slides of the two images.

Coquitlam Dam

Photograph negative is a copy of a cross section diagram of the dam, showing: rock fill in upstream and downstream toes; location of original dam buried in new structure; and the equivalent cross section of a concrete dam. Negative was created in order to produce a lantern slide of the image.

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