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.
Thinning Eyebrows. Loss of eyebrow hair can be very distressing due to the cosmetic importance of eyebrows and it is a relatively common concern. Thinning may appear on one eyebrow or both, in patches or uniformly. Absolutely, thinning brows is a relatively common condition. 2  The most common procedure used to treat thinning brows is permanent cosmetics. 3  This procedure will alleviate the need for you to 'draw' or 'color' in the spots that are thinning and leaves you with natural looking eyebrows.