Petone Sand Plant
Rob Paddison
Winstone AggregatesPetone Sand PlantAvailable Hours
- Weekdays 7.00AM - 5.00PM
- Friday 7.00AM - 4.00PM, Saturday 7.00AM - 4.00PM
Physical Address
Postal Address
Core Products
Sand
Petone Sand Plant supplies the building industry with sand and shingle: a valuable, fine and rounded aggregate.
History
Winstone Aggregates dredges sand and gravel from the bed of the Hutt River mouth. Extraction of sediment from the dredged area is by way of a mobile hydraulic excavator mounted on a barge and positioned by tug. The excavator digs the bed level to a maximum depth of 4.25 metres below the water level. When the barge has a full load (about 60 cubic metres) it is pushed to the shore and the sediment is unloaded for processing.
Extraction is required mainly for river flood management purposes as it is important that the river mouth be kept free of excessive sedimentation and the formation of a sand bar, which would restrict flood flows and have the effect of increasing the risk of flooding in the lower part of the Hutt Valley.
