Question: Given: incoming grade = -2% outgoing grade = +1% L = 24 stations PC sta = 10+00 23. How far from the PC is the

Given: incoming grade = -2% outgoing grade = +1% L = 24 stations PC sta = 10+00

23. How far from the PC is the critical point for keeping the vertical curve at or above a defined elevation?

24. You are trying to keep the vertical curve above a pipeline at +0.5% grade. How far from the PC is the critical point?

25. Prove the elevation difference along the tangents from PC to PT equals the elevation difference defined by the vertical curve equation.

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