GUINNESS + CIVIL DESIGN = OOPS.

So the rule of thumb for a vertical profile is not to have a change of grade greater than 8%. So in this case, they should have had a vertical curve, or the grading ramp up more before the cut of the driveway.  The designer in this case didn’t, and is now on the leader of the free world’s crap list.  As I like to say, “You never notice a good Civil Design, but you’ll always notice a bad one.” The video is from President Obama’s trip to Dublin in May of 2011.  The video goes on for a while, all the action is up until 0:30.