Something was posted about this on SSP.
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The concrete pour for the retaining walls at Tonnelle Ave bridge’s phase 2 is complete. The existing rebar on each end is for when they begin to lay down the bridge deck. They’re now working on the middle support columns, and soon we’ll have the bridge beams laid down once the support columns and structure are completed.
They’re also building a large retaining wall and doing more excavation that will eventually permit the TBMs to be launched for the Palisades tunnel portion.
The Hudson Yards casing is getting quite deep now. It’s getting harder to see the excavators in the pit closest to the High Line.
At the Portal Bridge, the southernmost arch has had its temporary supports removed completely, and the middle arch has them disconnected but are still attached.
Another big thing is that the high-voltage cables are being strung on the tall over-water towers and eventually going to be connected to the northern side’s catenary poles.
Insulators on the catenary poles are being installed, and those attachments on the pole arms and insulators are to permit the wires to be laid.
Several wires on the side closest to the camera have made it across and are linked to spools on trailers.
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I was in NYC and, of course, inspected the Gateway-related work from the High Line.
Not sure if this is Gateway-related, but it was across the street.
I also saw the Portal Bridge on the way home. These aren’t the best pics, and the train windows were dirty. I was still happy to see it and view the progress firsthand.
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Across the street is the beginning of work on the Manhattan tunnel portion of Gateway. Details can be found on the Gateway web site
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Isn’t the trench running under the highline the beginning of the manhattan tunnel portion?
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The trench is concrete casing #3. The Manhattan tunnel begins at the end of the trench.
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No, the end of the trench is the beginning of the Manhattan Tunnel, right under the north side of West 30th Street.
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The trench isn’t the actual Hudson Tunnels portion of the project. They’re a continuation of the cut and cover portion that was started during the construction of the first half of the Hudson Yards development. There will be a ventilation shaft built that will also permit the removal (or insertion) of the TBMs for the actual under-river component of the tunnels.
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Right. The trench is for the placement of concrete casing number 3.
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Here’s some recent video footage of the bridge’s progress. Per this video, some new catenary poles by Secaucus Junction are already hooked up and the catenary attached. Several old pole bases are visible and the older poles are removed.
However, as of recently, all the temporary support structures on the arches have been removed. Several insulators on the over-water high voltage lines are also installed and the temporary pulleys on some catenary poles are removed. There’s good progress on the wiring installation at this point.
The next phase of Tonnelle Avenue is to start the decking as the middle support column is cast and so are the bridge abutments.
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Catenary Poles are going up in the arches. Both the outer arches are getting poles which means the concrete’s set. Looks like the arches get special black painted poles too. I noticed in recent videos that there were black catenary pole parts and they were black. It’d be cool if the entire bridge got black poles like the renderings though but that unfortunately didn’t happen.
The beams for the deck on the Tonnelle Ave middle portion of the bridge are laid. They’re going to start preparing for decking quite soon.
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NJ Transit just published some official photos of work on the Portal Bridge. They are a bit outdated because catenary poles are now being installed on the middle segment now and more high voltage cables strung. Soon, all the poles will be installed.
Just as these great updates come along, the Hudson Yards and Tonnelle Ave live cams go down. Just prior to the cams going down, prep work for laying the bridge deck was underway with rebar and the metal sheeting underneath in place.
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The Hudson Yards Casing has reached 50% completion. Still plenty of work to do, but they expect to finish by 2026. Almost all the dirt has been excavated and now they’re breaking bedrock and also starting work on the ventilation shaft which will also facilitate TBM access.
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