What is a dam?
Dams block off water in a river or a stream, so that
it must pass on to a barrier, lake, or a reservoir for
storage.
it must pass on to a barrier, lake, or a reservoir for
storage.
Where are Dams built ?
Dams are built across a stream, a river or an estuary
to retain water . Dams assist with hydro electric power
and they support irrigation systems.
to retain water . Dams assist with hydro electric power
and they support irrigation systems.
What are the purposes of dams?
Dams serve the primary purpose to retain water,
and are used to prevent water flow.
and are used to prevent water flow.
Where are Dams?
Water Care operates
fourteen supply reservoirs, five of them located in the
Waitakere Ranges, two of them located in Helensville,
and four located in the Hunua ranges.
fourteen supply reservoirs, five of them located in the
Waitakere Ranges, two of them located in Helensville,
and four located in the Hunua ranges.
Facts about Dams
The dams supply 80% of Auckland's water, since they
are built very high the rain water flows down them.
Earlier dams were made out of concrete. After World
War 2, they were made out of earth and rock. Now
dams are made from concrete.
are built very high the rain water flows down them.
Earlier dams were made out of concrete. After World
War 2, they were made out of earth and rock. Now
dams are made from concrete.
Dams in the Waitakere Ranges?
In the Waitakere Ranges there are five dams.
Three concrete dams, and two earth dams.
Three concrete dams, and two earth dams.
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