Change the existing flood regulator to remain open, allowing flood water to pass through as levels rise.

Capital cost: Approximately $1-$5 million for a 50-year asset life.

Pricing impact: The upfront pricing impact would be an average increase of three times the current price per hectare.

Service level: The Loch Garry Flood Protection District would cease to exist as a service following implementation.


BenefitsRisks
More natural flow of flood waterIncreased immediate flooding
Reduction in structure maintenance costFlood flows to north greater than natural conditions

Improved ecosystem health

Potential community infrastructure (roads etc.) damage
Resilience to changing conditionsEnvironmental uncertainty


Flood maps

Loch Garry flood map – Option 3A: Permanently open the regulator during a minor flood event (10.36m)

Loch Garry flood map – Option 3A: Permanently open the regulator during a minor flood event (10.36m)

Loch Garry flood map – Option 3A: Permanently open the regulator during a moderate flood event (10.9m)

Loch Garry flood map – Option 3A: Permanently open the regulator during a moderate flood event (10.9m)

Loch Garry flood map – Option 3A: Permanently open the regulator during a major flood event (12.3m)

Loch Garry flood map – Option 3A: Permanently open the regulator during a major flood event (12.3m)