Dam levels

We need steady, regular rain in order to soak our catchments and get water flowing into our dams. That is why dam levels don’t automatically rise when we receive rain.

While it may look like dam levels are increasing, this may not be the result of increased streamflow. The water in our dams is no longer just made up of water from rain. Groundwater and desalinated water are stored in dams during periods of low demand so it is available when it is most needed in the hotter months.

An overview of Metropolitan Dam information

Total dam
volume:

100% capacity

On this day last year storage was:

Dam storage changes ?

What does this mean?

Our metro dams are currently holding
%%percentage%% %%difference%%
than this time last year.

We need steady, regular rain in order to soak our catchments and get water flowing into our dams. Slowly declining rainfall means Perth's dams receive much less streamflow than in past years. Streamflow is the amount of water entering our dams from our catchments and is measured by changing water storage levels. The water in our dams is no longer just made up of inflows from rain. Groundwater and desalinated water are stored in these dams during periods of low demand so it is available when it is most needed in the hotter months.

Dam storage for the last 14 days

Year 07/11 08/11 09/11 10/11 11/11 12/11 13/11 14/11 15/11 16/11 17/11 18/11 19/11 20/11
2018 367.38 366.84 366.49 365.36 364.76 364.25 363.70 363.59 363.24 362.89 362.44 361.77 361.32
2017 284.48 283.81 283.69 283.76 283.60 283.53 283.20 282.94 282.84 282.40 282.00 282.01 281.95 281.70
Comparison +82.90 +83.03 +82.80 +81.60 +81.16 +80.72 +80.50 +80.65 +80.40 +80.49 +80.44 +79.76 +79.37 -281.70

Storage measured in GL

Comparison graph

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Metro total dam storage