WaterNSW monitoring Warragamba as spill rate falls

WaterNSW monitoring Warragamba as spill rate falls

04 July 2022

The spill rate from Warragamba Dam has fallen to 380 gigalitres per day (GL/day) overnight, down from a high of 515 GL/day yesterday afternoon (Sunday, 3 July).

Inflow to the dam is occurring at a rate of 240 GL/day, after rain across the catchment overnight was less than forecast.

The spill volume from Warragamba will be influenced by the rain received in the catchment today.

All WaterNSW major dams in the Sydney network continue to spill, but the rate is also receding.

WaterNSW will continue to work with the Bureau of Meteorology to monitor weather forecasts and inflows.

Access to dam precincts is closed due to the risk associated with flood operations.

Downstream impacts will ultimately be a combination of the spill volume combined with downstream tributary flows.

For more information:




Bureau of Meteorology (BOM)

Weather forecasts and warnings


NSW State Emergency Service (SES)

Flooding and severe weather warnings and advice



Friday 12 August
2,585,768 ML
2,618,706 ML
7,913 ML
1,131 ML
-7,334 ML
Friday 12 August