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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.

[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.

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