Arrow Catchment - Minimum Flows

Background

The Arrow catchment is located in the Queenstown Lakes District. The Arrow River flows from its headwaters in the Harris mountains (west), Mount Motatapu (north) and the Crown Range (south-east). The River flows past the township of Arrowtown, to its confluence with the Kawarau River. Soho, Eight Mile and Bush creeks and the Rich and Royal burns are significant tributaries of the Arrow River.

Minimum flows

A minimum flow at Cornwall Street is proposed at 800 litres per second. This level is similar to the lowest flows experienced in 2015/16. A minimum flow at this level provides for habitat retention for trout, as well as preventing the growth of nuisance algae. These were both important values identified by the community. In addition, a supplementary minimum flow of 1050 litres per second is proposed. All technical reports which inform the minimum flow limits have been completed for the Arrow catchment.


Background

The Arrow catchment is located in the Queenstown Lakes District. The Arrow River flows from its headwaters in the Harris mountains (west), Mount Motatapu (north) and the Crown Range (south-east). The River flows past the township of Arrowtown, to its confluence with the Kawarau River. Soho, Eight Mile and Bush creeks and the Rich and Royal burns are significant tributaries of the Arrow River.

Minimum flows

A minimum flow at Cornwall Street is proposed at 800 litres per second. This level is similar to the lowest flows experienced in 2015/16. A minimum flow at this level provides for habitat retention for trout, as well as preventing the growth of nuisance algae. These were both important values identified by the community. In addition, a supplementary minimum flow of 1050 litres per second is proposed. All technical reports which inform the minimum flow limits have been completed for the Arrow catchment.