A "trolley" system for cranes

(Satellite)

I wonder if this project is for a new causeway for the new Bonner Bridge. The photos below show a Manitowoc 2250 being built on a platform that runs on rails held up by piles. It looks like the assist crane is also a 2250. A comment by Todd Rennix indicates that six cranes will be on this job when it is up to speed.

(Update: more information on this project)

Judging by the houses in the background in the third and fourth photo, I assume this work is on and/or along the Outer Banks. (It looks like those houses survived their hurricane better than the houses along the Florida Panhandle.) a trolley system is probably being built to minimize the impact of the crane work on the land. It might be hard to build a road strong enough for the cranes to travel on. Even if they could economically build a strong road, the road would destroy a lot of land. The piles holding up the trolley rails have the advantage that they can go as deep as needed to provide a good foundation and they leave a small impact on the land after they are removed.

Patrick Scales posted four photos.

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It looks like a comparable system is being used to build a causeway in Austrailia.

Doug Grey posted six photos with the comment: "Putting a 16000 up on a platform. 2012 Western Australia. Cape Lambert Port B Project."

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3, cropped

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