This happened at Mitcham Common. The Eastern European artic cut the turning short and the first trailer axle struck a decorative iron bell that marks the edge of the roadway etc. He struck it very hard, causing severe damage to the braking system etc. The caliper twisted and broke the brake disc, fortunately there was only about 9T on the trailer so lifting it off with the rotator was fairly straightforward. The Police were insistent on keeping the traffic flowing, so we managed to get a rotator parked tightly behind the trailer and sneaked the boom past the streetlamp.