WastewaterCentral Interceptor
A 15-kilometre gravity trunk sewer and pump station network reducing overflows across central Auckland.
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Akron Ohio Canal Interceptor Tunnel
A deep, small-diameter interceptor tunnel and consolidation tank system in karstic ground.
Interceptor tunnelling, deep shafts and a stormwater consolidation tank in highly variable ground.
Karst risk drove a probe-and-treat ground model, with contingency designs developed for unexpected cavities encountered during excavation.
Scope of work
- Tunnels & Underground Engineering
- Geotechnical Engineering
- Construction Management
Project facts
- Ground
- Karstic
- Tanks
- 2 consolidation
- Diameter
- Small bore
- Completion
- 2022
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WastewaterCentral Interceptor project details
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