A vertical curve joins a -1.2% grade to a +0.8% grade. The P.I. of the vertical curve is at station 75 +00 and elevation 50.90 m above sea level. The centerline of the roadway must clear a pipe located at station 75 +40 by 0.80 m. The elevation of the top of the pipe is 51.10 m above sea level. What is the minimum length of the vertical curve that can be used? BVC -1.2% P.I. Elevation 50.90 m 0.80 m 75 +00 75 + 40 EVC +0.8% Elevation 51.10 m Pipe