Dam releases create capacity to capture next inflows

Dam releases create capacity to capture next inflows

11 August 2021

WaterNSW storages in key valleys have been reduced, to increase dams’ capacity to capture future inflows, in line with this season’s wetter weather forecasts from the Bureau of Meteorology.

WaterNSW has utilised a brief period of dry weather to safely release water, in consultation with local advisory panels, comprised of landholders, local councils, NSW State Emergency Service (SES) and other key stakeholders.

With the Bureau of Meteorology continuing to forecast a climate outlook that “indicates rainfall over the coming three months is likely to be above average” WaterNSW will continue to make airspace releases as required to manage storage levels.

WaterNSW’s priority valleys at this point are the Murrumbidgee and Lachlan where major supply dams – Burrinjuck, Blowering and Wyangala respectively - have had their storage levels further reduced in anticipation of ongoing wet weather.

WaterNSW executive manager of system operations, Adrian Langdon said based on weather forecasts from the Bureau of Meteorology, WaterNSW has released large volumes from dams in the Murrumbidgee, Lachlan and Namoi valleys.

“Strict rules govern these operational pre-releases. A key factor is confidence that the season ahead will generate sufficient inflows to refill the dams for future drought security. Severe droughts have clearly demonstrated the critical importance of water security to the communities and economies serviced by our major supply dams.”

Valley

Dam

% (Rising/Falling)

Inflows GL/day

Releases GL/day

Murrumbidgee

Burrinjuck

89 ↓

6.5

12.5

Summary: Airspace releases being reduced but ongoing

Murrumbidgee

Blowering

98.2 ↓

8

10.5

Summary: Airspace releases continuing and may increase as downstream flows recede

Namoi

Keepit

95.5 ← →

1.8

2.5

Summary: Inflows being passes to maintain storage level

Lachlan

Wyangala

94.3 ↓

4

9

Summary:  Airspace releases continuing

More information

WaterNSW Regional NSW storages or river heights and flow data at WaterInsights

Bureau of Meteorology (BOM) - Weather forecasts and warnings

NSW State Emergency Service (SES) - Flooding and severe weather warnings and advice - Phone: 132 500

Media contact – Tony Webber 0428 613 478.

Loading

94.0
Tuesday 19 October
0.2
2,426,378 ML
2,581,850 ML
9,092 ML
1,299 ML
4,444 ML
Tuesday 19 October