Document library

This report analyses data from four surveys carried out in
1991, 1995, 1999 and 2004. It determines the volume of
gravel and bed level changes that have occurred in the
Waikanae River from mouth to the water treatment weir
over this period, and uses the information for forecasting
the gravel extraction rate for the next five years. The
report also discusses results form surveys carried out
after the January 2005 flood, highlights issues raised from
the findings, and outlines proposed actions.