Tappan Zee Constructors (TZC) is scheduled to continue concrete pier construction near the Westchester shoreline following the removal of the old bridge’s roadway in the area. Work includes stripping pier column forms, placing precast pier caps and installing bearings atop the caps.
The project’s 200-ton pier caps were prefabricated by Coastal Precast Systems in Chesapeake, Va. and barged directly to the project site for installation. The prefabrication process allows TZC to install large sections of the new bridge faster and with greater ease.
Steel Girder Installation
TZC is scheduled to continue girder assembly installation on the new bridge’s second span next week. TZC will utilize mobile cranes to raise and place the girder assemblies at the Rockland approach.
In Westchester, TZC is scheduled to assemble sections of structural steel girders, which will connect the second span to an on-land abutment.
Additional work includes:
- Dismantling of the old bridge’s roadway
- Tower crane removal
- Internal tower work
- Maintenance dock construction
- Electrical equipment installation and testing
- Landscaping near bridge landings
- Excavation, drainage work and concrete paving in Westchester County
- Second span foundation work and maintenance ramp excavation in Rockland County
- Construction of Thruway maintenance and State Police facilities in Tarrytown
Boater Safety
Expect periodic closures of the main navigation channel due to on-going construction and extensive demolition activities. Cranes, barges and other equipment will occupy parts of the channel during this time. Boaters are strongly encouraged to avoid the project site during the closures and to avoid the Regulated Navigation Areas, located east and west of the main channel.
Times and dates of the closures are subject to change and will appear in the U.S. Coast Guard’s weekly Notice to Mariners; on the project’s Twitter feed (@NewNYBridge); and broadcast on Marine Radio Channel 22A. Tappan Zee Constructors can be contacted via Marine Radio Channel 16 for assistance.
Rockland and Westchester marine units continue to patrol the project site.
More boater safety information, including the U.S. Coast Guard Notice to Mariners, a construction site map and GPS-tracked construction vessel locations, can be found at NewNYBridge.com/Boater.
The New York State Thruway Authority provides this information as a public service. Any reliance you place on such information is therefore strictly at your own risk. Nothing in these guidelines shall supersede the actual construction conditions, and regulations set forth by the U.S. Coast Guard.
