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2 all terrain hydraulic cranes, one on left looks to be 175-200 ton + or - and the one on the right looks to be heavier, 200 or 300 ton + or - each one of those in this area would be around $2000-$5000/day + 1 operator & 1 oiler each crane (4 operating engineers pay), remote location - mileage too ? Hard to say on that, and if union or non union for operators payroll costs, don't know the area or the company. Also a truck crane, wonder what they used it for ? (could be up to another $2000/day for one of those) & 2 tractor trailers on site, one looks like a lowbow or flatbed for crane counterweights, steel plates/timber dunnage.
It appears that the lighter capacity crane on the left is trailing the heavier crane on the right, as it's got the heavier side of the tandem pick using a 4 part spreader off a big O ring ? The seeder probably is not too heavy, so it looks like they could possibly get it in one piece and land it together towards the heavier crane. The crane on the left must have plenty of capacity over what it's picking, as the angle of the boom is going to be sharp as it gets close to land the pick along with heavier crane on the right.
That entire JD rig must not be over 30,000 lbs, guessing though, imagine the pick went like planned, have to be real careful when setting outriggers in a place like that, timbers can roll or move on soil, we used steel plates most of the time, but that was on pavement in the city, used to hire 200-300 ton hydraulics quite often. Amazing rigs.
Just out of curiosity I wonder what happened; bridge just weakened from age? Piers look ok, bracing, joists or beams failed it appears, from overloading, loose connections or just a freak thing? Sure looks like it could have been worse, that is a long drop to the water, no one got hurt, that's all that counts.
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