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Question: a vertical curve connects a 45 grade with a 40...

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A vertical curve connects a -4.5% grade with a +4.0% grade on a 45mph rural highway at station (875+25.4) and elevation of 512.6ft above sea level. The stopping sight distance is 550ft. Calculate the location and elevation of the BVC and the EVC and the elevations at stations (874+00) and (876+50).

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