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  3. a -3.4% grade intersects a 4.2% grade at sta 5+180

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

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Civil Engineering

A -3.4% gradeintersects a 4.2% grade at STA 5+180 at an elevation of 125.98. Avertical curve of length 120m is to be run forward from the pointof intersection, and a curve of length 80m is to be extended backforming an unsymmetrical curve.

a.)Determine theelevation of the lowest point.

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

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