Lake 16 Dam Repair Presentation

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Presentation transcript:

Lake 16 Dam Repair Presentation

Dam construction circa 1949

Lake 16 prior to dam failure

Empty reservoir after dam failure

Downstream side of dam, treatment plant supply pipe exposed (normally buried).

Post-dam failure debris clean up

Old pipe material

Looking upstream at temporary cofferdam (timbers were removed from beneath dam)

Standing at base of dam on upstream side

Looking through dam foundation (upstream side of dam)

View from downstream side of dam looking upstream

View looking downstream at new vaults & temporary bypass pipes

View on upstream side of dam showing new pipes through foundation .

Downstream of dam looking at new vaults

Rock material for placement beneath dam’s foundation

Grout material being placed to fill voids between large rocks

Grout being placed on downstream side of dam to fill voids and cover treatment plant supply pipe.

Clarifier at Water Treatment Plant during initial flushing

View from downstream side of dam looking at vaults and hydroseeded slopes – Project complete!

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