Roxburgh Dam Combined Discharge of Spillway and Sluice into the same Chute Peter Silvester – Civil Engineer Contact Energy Grant Webby – Principal Hydraulic Engineer Opus International Consultants. Roxburgh Dam - Location. Roxburgh Dam. Roxburgh Dam. Commissioned 1956
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Roxburgh DamCombined Discharge of Spillway and Sluice into the same ChutePeter Silvester – Civil Engineer Contact EnergyGrant Webby – Principal Hydraulic Engineer Opus International Consultants
50m high concrete gravity
320 MW power station
Mean flow 507 cumecs
PMF 7,000 cumecs
Three Spillway Gates
15.2m wide x 13.4m high.
Discharge capacity 4,750 cumecs
Two diversion sluices
7.1m wide x 8.7m high.
Discharge capacity 2,900 cumecs.
Combined total discharge capacity 7,650 cumecs.
Spillway chute 3 dewatered
Sluice only operation
Sluice 2 opened 6.77m (78%).
Discharge 862 cumecs.