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Dams must hold back water of a certain depth, determined by the height of the dam. The pressure exerted by this water on the dam is dependent in part by its depth, since the base of the dam must be able to hold pressures exerted by the weight of all the water above the base. Since the pressure is greater at the base, the dam is broader at the base.
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∙ 13y ago
Wiki User
∙ 6y agoThe pressure of the water (the weight) is greater at the bottom, due to the depth of the water. As the pressure is less near the top, the top of the dam wall doesn't need to be as thick as the bottom of the dam wall.
Wiki User
∙ 9y agoThere is a lot of force behind a dam and over a buildings foundation. Buildings and dams are given wide bases to exert less pressure on a large area.
Wiki User
∙ 10y agoThe engineers was responsible to do it better that what kind physical structure could been worth of it,
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Wiki User
∙ 11y agoThis is because, same force acting on a smaller area exerts a larger pressure and smaller pressure on larger area. Here, buildings are given wide bases to exert less pressure on large area.
Wiki User
∙ 10y agoWiki User
∙ 6y agoThe pressure exerted by water is greater at greater depths.
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How are man made dams different then beaver dams?
Well man made dams like the Hoover dam can support the water from overflowing while beaver dams a just basically homes.
Why is the bottom of a settlement hierarchy wider?
SERFS
Why are dams over rivers are made broader at bottom than at the top?
The pressure of the water (the weight) is greater at the bottom, due to the depth of the water. As the pressure is less near the top, the top of the dam wall doesn't need to be as thick as the bottom of the dam wall.
How many major dams made by the TVA?
There were 3 TVA dams on the Tennessee River in Alabama
Who made the dam?
beavers make dams
What becomes deeper and wider as material scrapes its sides and bottom?
channel
What becomes deeper and wider as materials scrape its sides and bottom?
channel
Why dams are built thicker at the bottom?
to hold the water better but at the top it's thinner to get water in
What is hydroeletric energy?
electricity that is made from water-dams
What are Levees and dams made out of?
i don't knowummmm how about Sand
If the bottom of the population pyramid is wider than the top, what does that mean?
there are mums down there
Why is the electricity produced at the bottom of the dams?
because gravitatinal potential energy of water is used to rotate turbines.
