Tuesday, June 9, 2020

Dams information report.


A dam blocks the flow of water. Lakes must pass around or through barriers.
Dams are built across streams, rivers and estuaries. They are there to
prevent floods.

Dams are built to retain water. The water can be used for fishing,
and can prevent flood waters from over flowing. Dams are also assist
with generating hydro power into our homes.

Water Care operates fourteen reservoirs, five located in the Waitakere Ranges, two near Helensville and four located at the Hunua Ranges.

The Dams supply 80 percent of Auckland's water. After World  War 2. Dams
were made with earth and rocks.The Dams receive 1.8 metres of rain fall
each year.
In the Waitakere Ranges there are 5 dams, 3 concrete dams and 2 earth dams. The Waitakere Ranges only gives 20 percent of water.

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