Built To Last. The dam itself was built to last. It was built to be as tough as the canyon walls which surround it. A total of 3,250,000 cubic yards of concrete was poured to create the dam â itâs enough to build a monument 100 feet square and 2 1/2 miles high.uilt To Last. The dam itself was built to last. It was built to be as tough as the canyon walls which surround it. A total of 3,250,000 cubic yards of concrete was poured to create the dam â itâs enough to build a monument 100 feet square and 2 1/2 miles high.
Report Abuse. The main function of the eyebrow is to prevent moisture, mostly salty sweat and rain, from flowing into the eye, an organ critical to sight.
Just like an umbrella keeps our bodies dry from the rain, our hairy eyebrows keep our eyes dry from raâ¦in or sweat. When it's pouring rain outside or when sweat drips down from our foreheads, our eyebrows divert the flow of water or sweat away from our eyes. By catching the water or sweat, our eyebrows not only allow us to see more clearly, but also keep salty sweat from burning or irritating our eyes.