Wednesday, March 21, 2018

Goethals Bridges over Arthur Kill at Staten Island NY, NY

The satellite image still has just the old bridge. So I have captured a "before" image. I'll have to check back in a couple of years to get an "after" image.
We seem to have lost another truss bridge to two cable stay bridges.
1928: (Bridge Hunter, Historic Bridges, HAER)
2017+2018: (no Bridge Hunter)
3D Satellite
Photo from HAER NY,43-___,2--1 from ny1806
[Note the long approaches to get the needed 140' shipping clearance are significant bridge structures in themselves. Actually, the clearance mid-span is 138.5' minimum @ MHW. [panynj-facts] I assume MHW is Mean High Water.]
I can't believe it, the Port Authority of NY & NJ has restricted access to their rendered image. This is the first time I have seen an organization that is trying to sell a bridge project not allow their renderings of that project to be copied. Fortunately, very few people read these notes. So I doubt if anyone who cares will see this copy. Note that the cables help hold up part of the long approaches that such a high-clearance bridge needs.
Port Authority of NY & NJ from panynj-gallery
Construction began in 2014. A gallery of 18 images of the building of the new bridge.

Aug 2017 Street View

Webcam Mar 13, 2018
Traffic was switched from the old truss to the first cable stay bridge during the weekend of June 10, 2017. The first photo in New Goethals Bridge opens shows the second cable stay bridge is well underway. So they did not have to get rid of the old one to make room for the second cablestay bridge.

As one would expect with a cantilevered truss, the suspended span was lowered to a barge.

Webcam Jan 15, 2018
[You can see the installation of the hydraulic jacks at both ends of the suspended span.]

Webcam  Jan 16, 2018
[The span has been lowered.]

Photos from the perspective of crane workers and/or fans.

Ryan Spirito posted
12000 and mlc300 top view
Rob McGrady I would love to take an aerial shot from the helicopter just to show how many cranes we have in that small area lol
[A comment observed how the shot shows how long the tracks are on the 12000 that is straight down.]

Keith Eller posted three photos.
Tito Arevalo The Goethals Bridge


1
Ben StalveyGroup Admin MLC 300 in series #?

2
3
Ryan Spirito posted
Last two pieces of the gothels bridge of main span mlc 300
Jeff Boyce commented on Ryan's posting
RoadBridges
"Because the site is just a few miles from Newark Liberty International Airport, maximum tower height was 272 ft, which drove unusually shallow cable angles. A unique anchor box shaped like a saddle allowed the cables to be stacked more tightly than a traditional anchor box, increasing the stay angles. It also allowed for the anchor boxes to be placed on the outside facing the towers, which allowed Parsons to keep the profiles for the towers slender.
'None of the steel fabricators would even bid on it until we printed a 3-D model,' Seth Condell, design manager for Parsons, told Roads & Bridges."



No comments:

Post a Comment