
Central Interceptor
Design, manufacture, delivery and installation of nine GRP shafts, 3m–7.5m in diameter, joined to the 16.2km wastewater tunnel, the largest wastewater project in NZ history.
- GRP cascade and maintenance shafts
- 9
- Shaft diameters
- 3m–7.5m
- Depth of May Road shaft A
- ~70m
















