WastewaterCentral Interceptor
A 15-kilometre gravity trunk sewer and pump station network reducing overflows across central Auckland.
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Annacis Island Outfall System
A trenchless outfall and marine diffuser replacement delivered with the plant kept in service.
Trenchless technology selection, design and construction management for a wastewater outfall replacement.
Direct Pipe and microtunnelling methods were selected to minimise surface disruption and maintain continuous plant operation.
Scope of work
- Trenchless Engineering
- Tunnels & Underground Engineering
- Construction Management
Project facts
- Method
- Trenchless
- Plant
- Kept running
- Setting
- Marine
- Completion
- 2013
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WastewaterCentral Interceptor project details
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