I saw a retch limo going up my road, and thought it will be fun getting
that over the humpback bridge! But he turned into a side-road and so
managed to avoid it. Since you don't see a humpback bridge sign until
you have passed that junction, he probably knew in advance about the
bridge, but if you don't live local, how would you find out the vertical
curve info you need to navigate a retch limo?