A -3.4% grade intersects a 4.2% grade at STA 5+180 at an elevation of 125.98. A...

A -3.4% grade intersects a 4.2% grade at STA 5+180 at an elevation of 125.98. A vertical curve of length 120m is to be run forward from the point of intersection, and a curve of length 80m is to be extended back forming an unsymmetrical curve.

a.)Determine the elevation of the lowest point.

b.)Determine the elevation of the second quarter point on the curve.

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Ally Wells answered 1 month ago

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