Dam and Rainfall Levels

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  • Prospect Reservoir
    • Avon Dam
    • Blue Mountains Dams
    • Cataract Dam
    • Cordeaux Dam
    • Fitzroy Falls Reservoir
    • Nepean Dam
    • Tallowa Dam
    • Warragamba Dam
    • Woronora Dam
    • Wingecarribee Reservoir
    • Prospect Dam

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At

Free text area to explain limitations or special messages in emergencies
- %
-% past week
Latest: - ML
Capacity: - ML

Snapshot

Last year: -%
Now: -%

Comparison

Volume (%)

- ML. - ML change.

Volume (ML)

- %. - % change.
The ‘capacity’ for Tallowa Dam only refers to the water available to be transferred to Sydney, when the total system storage is below 75%. The dam can hold 90,000 ML but only 7,500 ML is available for transfers.

Storage, rainfall and environmental releases

Storage
(recorded date)
Storage Capacity
(ML)
Current Volume
(ML)
Percent Full
%
Net Change in past week
%
Storage
(recorded date)
Storage Capacity
(ML)
Current Volume
(ML)
Percent Full
%
Net Change in past week
%

See verified weekly storage reports

How much rain has fallen in our catchments?

24hrs to 9am

-mm

Past week

-mm

Past year

-mm
Note: Rainfall and e-flows data are only updated on week days, not weekends

Latest environmental flow releases

Today's requirements

- ML

Past week

- ML

Past year

- ML
61.7
Wednesday 19 December
1.1
1,592,478 ML
2,581,850 ML
10,573 ML
1,511 ML
17,664 ML
Wednesday 19 December
64.1
Warragamba Dam
Warragamba
Wednesday 19 December
1,298,773
2,027,000
1,709,855
1,300,494
1,289,613
-411,082
-1,721
9,160
84.4
64.2
63.6
-20.3
-0.1
0.5
53.5
Woronora Dam
Woronora
Wednesday 19 December
38,417
71,790
61,105
38,371
37,684
-22,688
46
733
85.1
53.4
52.5
-31.6
0.1
1.0
58.4
Avon Dam
Upper Nepean
Wednesday 19 December
85,650
146,700
117,274
85,137
84,881
-31,624
513
769
79.9
58.0
57.9
-21.6
0.3
0.5
29.1
Cataract Dam
Upper Nepean
Wednesday 19 December
28,255
97,190
70,667
28,752
27,146
-42,412
-497
1,109
72.7
29.6
27.9
-43.6
-0.5
1.1
36.9
Cordeaux Dam
Upper Nepean
Wednesday 19 December
34,583
93,640
67,481
33,315
34,320
-32,898
1,268
263
72.1
35.6
36.7
-35.1
1.4
0.3
65.5
Nepean Dam
Upper Nepean
Wednesday 19 December
44,344
67,730
48,289
35,812
41,867
-3,945
8,532
2,477
71.3
52.9
61.8
-5.8
12.6
3.7
90.6
Prospect Dam
Wednesday 19 December
30,210
33,330
30,109
29,958
29,808
101
252
402
90.3
89.9
89.4
0.3
0.8
1.2
73.4
Wingecarribee Reservoir
Shoalhaven
Wednesday 19 December
17,712
24,130
19,303
15,536
16,161
-1,591
2,176
1,551
80.0
64.4
67.0
-6.6
9.0
6.4
46.6
Fitzroy Falls Reservoir
Shoalhaven
Wednesday 19 December
4,635
9,950
7,234
4,680
6,066
-2,599
-45
-1,431
72.7
47.0
61.0
-26.1
-0.5
-14.4
100.0
Tallowa Dam
Shoalhaven
The 'capacity' for Tallowa Dam only refers to the water available to be transferred to Sydney, when the total system storage is below 75%. The dam can hold 90,000 ML but only 7,500 ML is available for transfers.
Wednesday 19 December
7,500
7,500
3,480
320
4,900
4,020
7,180
2,600
46.4
4.3
65.3
53.6
95.7
34.7
83.0
Blue Mountains Dams
Blue Mountains
Wednesday 19 December
2,399
2,890
1,967
2,190
2,368
432
209
31
68.1
75.8
81.9
14.9
7.2
1.1
Warragamba Catchment
0.0
56.9
558
Nepean Catchment
0.0
85.5
695
Woronora Catchment
0.0
67.2
699
Shoalhaven Catchment
0.0
86.0
695
Blue Mountains Catchments
0.0
32.0
945
Avon Dam
9
219
1,574
Nepean Dam
55
678
4,929
Cataract Dam
9
218
3,909
Cordeaux Dam
4
48
929
Woronora Dam
6
73
1,326
Broughtons Pass Weir
14
276
3,911
Pheasants Nest Weir
94
1,044
8,012
Tallowa Dam
0
3,511
66,126