Photo sourced from Beef Central, Oswald leaves trail of delight and despair
This is a photo of 30 lengths 42 inch diameter gas pipes that were welded together across a flood plain at Calliope, inland from Gladstone, sitting on mounds of dirt in preparation to be buried. The wall thickness of these pipes are about 3/4 inch. Individually each pipe length weights about 4.4 tonne. Not only did the water shift the pipes across the flood plain but also kinked the pipe.
That's right, kinked, there must have been an incredible amount of force in the water to do that!
The pipe construction company would know how much hydraulic force it takes to bend a pipe. They do come along with a machine to make up some of the lesser degree bends on the pipeline easement. They bend x amount of degrees then move along x inches to bend the x amount of degrees again. They keep doing this until the right size bend is created. They have to make it gradually and smooth because the industry sends "pigs" up inside the pipe for various reasons.