Problem 02 - Symmetrical Parabolic Curve

Problem
A descending grade of 6% and an ascending grade of 2% intersect at Sta 12 + 200 km whose elevation is at 14.375 m. The two grades are to be connected by a parabolic curve, 160 m long. Find the elevation of the first quarter point on the curve.
A.   16.082 m
B.   15.575 m
C.   17.175 m
D.   13.936 m
 

Solution

 
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