Garibaldi is a beautiful lake near Squamish. There is a dam called the Barrier that was formed by a volcano holding the water from flowing to the valley down below. The total surface area of Garibaldi lake is 9.94km^2. The estimated Volume of Garibaldi lake is 1,182,860m^3. You find the estimated volume by multiplying the Surface area (SA) which is 9.94km^2 by the Average Depth (AD) which is 119m. Before we can multiply the SA and the AD you need to turn the SA from kilometres to meters. There is 1,000km in 1m so you would move the decimal place of 9.94 three to the left which leaves you with 9,940m^2. Then you just go 9,950m^2 x 119m= 1,182,860m^3.
Now there is concerns that if the Barrier were to brake some how (from an earthquake) it would deal massive damage to the town Squamish. Let’s figure out how much pressure the water is. In just 1 cubic meter of water it weighs 1,000 kilograms (kg). What you have to do is multiply 1,182,860m^3 by 1,000 which gives you 1,182,860,000kg or if your pounds (lb) person it would be 2,607,759,914.48lb. The tallest building in the world is called Burj Khalifa and it weighs 500,000 tons (a ton is equivalent to 2,000lb) and Garibaldi lake weighs 1,303,879.96 tons. That means that the weight of 2.61 Burji Khalifa towers would be needed to match the weight of Garibaldi lake
Sources:
– https://en.m.wikipedia.org/wiki/Garibaldi_Lake
– https://en.m.wikipedia.org/wiki/The_Barrier
– http://www.squamishchief.com/news/garibaldi-lake-a-ticking-time-bomb-1.1753732