The
Hoover
Dam
Jeffrey Zuehlke
For Ellie,
Graham, and Gus:
rock -solid foundations
-J.Z.
Copyright 2010 by Lerner Publishing Group, Inc.
All rights reserved. International copyright secured. No part of this book may be reproduced,
stored in a retrieval system, or transmitted in any form or by any meanselectronic, mechanical,
photocopying, recording, or otherwisewithout the prior written permission of Lerner Publishing
Group, Inc., except for the inclusion of brief quotations in an acknowledged review.
Lerner Publications Company
A division of Lerner Publishing Group, Inc.
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Minneapolis, MN 55401 U.S.A.
Website address: www.lernerbooks.com
Library of Congress Cataloging-in-Publication Data
Zuehlke Jeffrey, 1968
The Hoover Dam / by Jeffrey Zuehlke.
p. cm. (Lightning Bolt BooksTMFamous Places)
Includes index.
ISBN 9780822594086 (lib. bdg. : alk. paper)
1. Hoover Dam (Ariz. and Nev.)HistoryJuvenile literature. I. Title.
TC557.5.H6Z84 2010
627'.820979313dc22 2008031245
Manufactured in the United States of America
1 2 3 4 5 6 BP 15 14 13 12 11 10
Contents
page
page
page
page
page
page
Further
Reading
page
page
A Dam Like
No Other
Have you ever seen this
structure? This is Hoover Dam.
Dams control rivers and streams.
Hoover Dam is one of the
largest dams in the world. It is
very important. It sends power
and water to many people.
Dams control
water in
rivers like
this one.
Hoover Dam holds back the
mighty Colorado River. It
keeps the river from causing
floods. The dam holds the
water in a huge lake.
Hoover Dam slows the
flow of the Colorado
River. A lake lies
behind the dam.
The lake is a reservoir (a place
where water is held for later
use). It is named Lake Mead.
People use Lake Meads
water in many important
ways.
Lake Mead is the largest
man-made lake in the
United States.
People use some of the
water in their homes.
What do you do with water?
Many homes
depend on Lake
Mead for water.
Farmers use Lake Meads water
for their crops. Watering
crops is called irrigation.
What else does the
Hoover Dam do?
Water from
Lake Mead helps
crops grow.
Hoover Dam makes
electricity. Water
runs through tunnels
inside the dam. The
water spins giant
machines called
generators.
Running
water spins
generators
inside Hoover
Dam.
This action creates hydroelectric
power (power produced by
moving water). The spinning
generators create electricity for
people to use.
Electricity created by
the generators lights
up Hoover Dam at night.
Where Is
Hoover Dam?
Hoover Dam is in
the southwestern
United States.
It sits between the states of
Nevada and Arizona.
Lake Mead provides water
to people in Utah, Nevada,
Arizona, and California. The
dams generators also produce
electricity for these people.
Hoover Dam's generators are inside two
power plants (shown above). The power
plants are at the base of the dam.
The area around the dam
used to be dry desert. Very
little rain falls near Lake
Mead. People couldnt live
or farm on the land.
Farmers in California
tried to grow crops in
the desert. But the
land was too dry.
When water did come,
there was too much of it!
Every spring, the Colorado
River caused huge floods. It
covered the land with water.
People stand
on the roof of
their house after
floodwaters have
covered their land.
But the water dried up too
quickly. Farmers couldnt use
it. So the U.S. government
decided to build Hoover Dam
to control the rivers flow.
Building
Hoover Dam
Building Hoover Dam was a
huge job. No one had ever
built such a large dam before.
Workers supported
by ropes help build
Hoover Dam.
Workers
from all
over the
United
States came
to work on
Hoover Dam.
More than five
thousand people
worked on the
dam. They started
in 1931. It took
them five years to
finish the job.