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A +9.00% grade intersects a -7.00% at station 50+70.26 and elevation 239.12 ft. A 400.00 ft....

A +9.00% grade intersects a -7.00% at station 50+70.26 and elevation 239.12 ft. A 400.00 ft. curve will be used to connect the two grades. Compute:

(1) Station and elevation for the curve's endpoints
(2) Elevations and grades at full stations
(3) Station and elevation of the curve's highest and/or lowest points

First, draw a sketch
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