Grand Canyon?

Question

I am doing a project for school and I need you to answer my question. This is really stupid, so therefore I can't find the answer on the internet. Do you know how many gallons of water would fit in the grand canyon. also, why couldn't they have used something besides a dam?

Answer 1

It could be filled with one average sea.

Th

Answer 2

Finding the volume of the Canyon would be next to impossible. You could use instead, the amount of water Lake Mead can have, and discuss how low it is and why.

The length of the Grand Canyon could be considered to be from Lees Ferry to Hoover dam. This is about 150 miles. Not all of this distance has the scope of the canyon at the Visitor Center, but the geology starts at Lees Ferry.

As to why they built the dam, it was primarily for flood control and water storage. Nothing else except a dam or series of dams could have done this.

Would you like a few pictures to include in your project?

Answer 3

Rim to rim completely full?? LOL. Wow! A lot!

Ok, let's see, if you close off both ends:

It's about 450 km long
about 1.6 km deep
and the width varies from about 0.5 km to maybe 25 km so if we assume an avg of maybe 10 km wide (because 10 is easy LOL)

then we get about 7200 cubic km volume which converts to about 2 x 10^15 gallons (US). Or about 2 quadrillion gallons! A lot!

But why on Earth would you want to completely fill the Grand Canyon with water? Just for fun?

And why couldn't they have used something besides a dam for what?

Answer 4

How I would attack this. Guess at average depth, average width and pick a length from map. Multiply and get volume in cubic feet. Find number of gallons in cubic foot (use Google). Multiply volume * gallons/cubic foot. Good luck.

my guesses: depth 1500 feet, width 5000 feet, length 70 miles.
that will be a very large number of gallons.

use something else for what?