Eastern Anchor Span to be Demolished, Removed

Remaining Tappan Zee Bridge still a safety concern/EarthCam® construction camera

It’ll be equivalent of a set of fireworks in the Hudson River near Westchester next Saturday as Tappan Zee Constructors, LLC (TZC) conducts a one-time demolition and lowering of the Tappan Zee Bridge’s east anchor span on January 12 (next Saturday). Traffic on the Thruway between Exit 11 in Rockland and Exit 9 in Westchester will be halted for approximately 45 minutes.

No traffic will be allowed through the main span navigation channel for several hours; the Coast Guard will establish a 2,500-foot safety area around the procedure.

Did you hear it? Not the fireworks, the whoosh of time going by: January marked five years since the Thruway Authority issued Tappan Zee Constructors, LLC (TZC) Notice To Proceed on January 18, 2013.

In case you’re curious, the span is 672 feet long, weighs 6,500 tons and is 140 feet above the Hudson River. Materials will be recovered and removed during the next weeks.

Deemed damaged and stable “with certain key components highly stressed,” according to a TZC fact sheet, “the span has been closely monitored, and it has been determined that the original removal plan is no longer the safest method of removal.”

The contractor hired demolition and salvage experts to plan and carry out the 9:30 a.m. procedure. Vertical members of the span will fall so the team can safely lower the span away from the main channel using specialty marine salvage equipment, the fact sheet said. Marine salvage experts will remove the material from the river during the following weeks; chains on the riverbed will remove the steel and support the salvaged structure so TZC can place it on barges and remove it from the site.

Motorists, be aware the state police will close the Thruway at 8:55 a.m. for approximately 45 minutes. It will reopen after TZC determines the area safe for traffic. Metro-North schedules may be “only minimally affected.”

Residents will not be affected; key locations in Westchester and Rockland will be monitored for vibrations or air-blasts from the demolition, the fact sheet said. All construction activities and schedules are subject to change.

I’d like to know what you think.

Copyright © Janie Rosman and Kaleidoscope Eyes 2019

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