### Elevation of the curve turning point

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##### Reference no: EM1384040

A vertical parabolic curve has its PVI at station 29+25.00 and elevation 87.52. The grade of the back tangent is 2.5 percent, the grade of the forward tangent is -4.5 percent, and the curve length is 550ft. Set up a table showing curve elevations at the PVC, at the PVT, and at the half-station points along the curve. Compute the station and elevation of the curve turning point.

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