1.) A -2.6% grade meets a +4.8% grade near an underpass. To maintain the minimum clearance allowedunder the bridge and at the same time introduce a vertical transition curve in the grade line, it is necessaryto use a curve that lies 240m on one side of the vertex of the straight grade and 115m on the other. Thestation of the beginning of the curve, PC, is 18 + 612 and its elevation is 415.81m.a. Determine the elevation at station 18 + 672.b. Determine the stationing of the lowest point of the curve.

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Engineering

Civil Engineering

Determine the elevation at station 18 + 672. Determine the stationing of the lowest point of the curve.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

1.) A -2.6% grade meets a +4.8% grade near an underpass. To maintain the minimum clearance allowed
under the bridge and at the same time introduce a vertical transition curve in the grade line, it is necessary
to use a curve that lies 240m on one side of the vertex of the straight grade and 115m on the other. The
station of the beginning of the curve, PC, is 18 + 612 and its elevation is 415.81m.
a. Determine the elevation at station 18 + 672.
b. Determine the stationing of the lowest point of the curve.

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