A minus 3.0% street grade and a plus 2.0% street grade intersects at station 8+00 at elevation 1450 feet. It is necessary to pass under an overhead structure at station 9 + 00 with a 16 feet clearance. The elevation of the lowest bottom of the structure is at 1470 feet. Calculate the maximum length (feet) of the parabolic curve required to meet the given conditions.A minus 3.0% street grade and a plus 2.0% street grade intersects at station 8+00at elevation 1450 feet. It is necessary to pass under an overhead structure atstation 9 + 00 with a 16 feet…
A minus 3.0% street grade
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