The video shows one of two 510 ton (that’s 1,020,00 0 lb) steam generators being transported 75 miles from Maryland to a nuclear power plant in Pennsylvania.
Each generator’s components plus transport weighs 1,651,000 lbs (that’s 825 tons).
The transport has 26 pairs of axles (each with hydraulic drive power) and 208 wheels.
Top speed is 3 mph.
The 75 mile journey will take 20 days.