A vertical curve has an incoming grade of -3.2% and the exit grade is +2.2%. The...

A vertical curve has an incoming grade of -3.2% and the exit grade is +2.2%. The length of the curve is 800 ft. The stationing and elevation at the point of intersection of the grades are 73+22 and 1842.35 ft.

Compute the curve and determine elevations on the curve at the +00 points. Then determine the elevation of the curve at the low point. If a sewer pipe is to pass underneath at the lowest point, what elevation should the top of the pipe be located at if the required amount of cover below the driving surface is 4.50 ft?

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Ally Wells answered 5 months ago

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