Question: A 1.10% grade meets a +0.90% grade at station 36 + 00 and elevation 800.00 ft. The +0.90% grade then joins a +1.50% grade at

A −1.10% grade meets a +0.90% grade at station 36 + 00 and elevation 800.00 ft. The +0.90% grade then joins a +1.50% grade at station 39 + 00. Compute and tabulate the notes for an equal-tangent vertical curve, at half-stations, that passes through the midpoint of the 0.90% grade.

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