Figure 2 - Ohau diversion wall

The Ohau diversion wall was constructed on Lake Rotoiti with $4 million of funding from the Crown. It was completed in 2008. The wall was designed to divert nutrients flowing from Lake Rotorua through the Ohau Channel away from Lake Rotoiti. This is part of a programme to improve Lake Rotoiti’s freshwater quality. Photo of the Ohau diversion wall courtesy of Rotorua District Council.