Dam Types

It is made of concrete usually. And it is the cheapest kind of Dam because it uses the least materials. It’s arch-like shape holds back the water and makes it the second safest dam in

North America. They are usually built in rocky area, like the famous Hoover

Dam.

It is made of reinforced concrete . They can be curved or flat, high or low, but it is always built by a LOT of supports. It has the buttresses, which keep it up.

They are shaped like triangles and they are helpful when the water pushes onto the Dam because they push back with

their unique shape.

Th

e m

ost co

mm

only

built D

am

in

North

Am

erica

. Like G

ravity

Dam

s, th

ey re

ly o

n th

eir w

eig

ht to

stop th

e

wate

r. Unlike

all th

e o

ther D

am

s, beca

use

it is create

d o

f rock a

nd

earth

, it has a

wate

rpro

of co

re th

at

pre

ven

ts wate

r from

seep

ing th

rough

the e

arth

and ro

ck.

Th

ese

Dam

s may b

e b

ulky

, But th

ey

are

strong! T

he sa

fest D

am

in N

orth

A

merica

is expensiv

e b

eca

use

it needs S

O M

UC

H co

ncre

te! B

ut I ca

n’t

belie

ve so

me p

eople

like it’s b

ig,

bulky

look!

Types of Dams

• Arch

• Buttress

• Embankment

• Gravity

DID YOU KNOW?The biggest Dam in North America is the famous Arch Dam, the Hoover Dam, Also called “The Boulder Dam” or “The Red Bull” an it was approximately 726.4 feet tall and 1244 feet wide.

What is the safest dam in North America? Check the answer.

Embankment

Arch

Gravity

Buttress

Has completed: the safest dam test.