Rain and Floods

  • Puhipuhi is an extraordinarily wet place
  • Intense storms bring rainfall rates up to 100 mm an hour
  • Extensive flooding is routinely experienced
  • Huge landslips are common
The Waiotu River in flood looking Northwest (upriver). The river normally runs between the stop-banks shown clearly here. The green area on the right is the start of the Puhipuhi hills with State Highway 1 between Puhipuhi and the flood waters.

The Waiotu River in flood looking Northwest (upriver). The river normally runs between the stop-banks shown clearly here. The green area on the right is the start of the Puhipuhi hills with State Highway 1 between Puhipuhi and the flood waters.

The Puhipuhi area is one of the wettest parts of Northland. Annual rainfall is around 2000 mm – well above the regional average. During intense storms, torrential rainfall rates of up to 100 mm an hour can be experienced. Huge landslips are common and frequently disrupt the road network.

WhakaparaFloods2

Extensive flooding is experienced locally and downstream into the Hikurangi Swamp and through farmlands – right down to the Kaipara Harbour.

This happens regularly and is predicted to occur more often.

These events are strong warnings about the unusually high environmental risks associated with metallic mining in geologically-unstable terrain such as exists throughout Puhipuhi and – for that matter – throughout Northland.