Crest vertical curve of 300m is connected with two tangents, where -1.0% grade is connected to a -5.0% grade tangent. Given the elevation of Pl is 177.000 m and the station of Pl is 0+150. Find the profile elevation of the vertical curve at 20 m interval. What is the profile elevation at chainage 0+200? . Also draw the curve profile. Use a graph paper or software.

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