Fontana Dam |
| Fontana Dam is a gravity
dam.
It is almost 20 houses high.
It is 15 houses wide at the bottom.
It holds back a lake of more than 3 billion bathtubs of water.
|  |
 |
The dam is located in North Carolina, USA.
The dam has many purposes:
- to control flooding
- to create power
- to help ships pass
- to let people swim and boat on the lake.
|
| The Fontana Dam cracked on the dry side. The concrete
started to grow from the heat and a chemical reaction. This picture
shows where the dam cracked. |  |
 |
Click here to see an animation
of a crack growing in a gravity dam.  |
Click the forward arrow to learn
about the third example of a cracked dam.
  |
