Glen O'Riley wrote: > What I am saying is that at 6.7-6.9m, the main viaduct (the big one with the > bend in it), the water gets at least 1/2 way up the supports, at 10m I'd > imagine it would be unstable. You mean showground viaduct. That viaduct is unstable at the best of times. It is heavly infested with rot and white ants the max speed on it is around 10kph.