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[quote user="Euclid"]With these attributes, the level of the bridge deck during the lift and transport would depend solely on the road surface supporting the tires on the lifting platforms. So that road surface would have to be level below the bridge if the bridge was expected to be set in a level position. [/quote] Most modern self-propelled modular transporters are height and load compensated, the ones used in Miami sure are: <a>https://youtu.be/R_1nogbOLQ0?t=56</a> Or here crossing the median: <a href="https://youtu.be/i2GAndUZcCY?t=16">https://youtu.be/i2GAndUZcCY?t=16</a> Look at the wheels and you see that they are at different heights. The SPMT compensates the road roughness. The movement I realized was moving the SPMTs back and forth to get it in the correct position. Here is another video. It shows the lowering to the supports starting at 0:45. Otherwise I've seen no movement of the hoist cylinders. <a href="https://www.msn.com/en-us/video/fun/timelapse-shows-construction-of-fiu-bridge-that-later-collapsed/vp-BBKgQkW">https://www.msn.com/en-us/video/fun/timelapse-shows-construction-of-fiu-bridge-that-later-collapsed/vp-BBKgQkW</a> Regards, Volker
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