Nighttime and overnight electrical work on the Tarrytown approach to the Tappan Zee Bridge will continue the week of August 4. The I-87 northbound/I-287 westbound right lane will be closed Monday, August 4 through Friday, August 8 from 9 p.m. each evening to 5 a.m. the following morning. The Thruway will remain open to traffic during these operations.
Construction will continue in the Hudson River as crews install foundations for the New NY Bridge. Work will include pile driving between 7 a.m. and 7 p.m., Monday through Friday and 12 noon to 7 p.m. on Saturday.
A second shift of workers will also continue pile welding, pile cleanout and concrete placement operations associated with permanent foundations.
Sheet pile driving at locations on land and near the Rockland landing is temporarily on hold due to high noise levels from the operation. TZC will implement additional noise-reducing measures before resuming these operations. Sheet pile driving will commence once the measures are in place. All other construction activities not associated with driving the sheet piles will continue.
Work will also continue on the Rockland temporary work trestle near the county shoreline, including pile driving to install the temporary foundations needed to support the platform. The trestles will support cranes for the construction of the western-most section of the new bridge.
The U.S. Coast Guard has established a Safety Zone surrounding 16 construction barge mooring locations at the project site. No unauthorized vessels are allowed in the Safety Zone. In addition, marine law enforcement will be enforcing the rules of the expanded Regulated Navigation Areas (RNAs) east and west of the Safety Zone. The RNAs stretch 500 yards north and 500 yards south of the existing bridge. Boaters are urged to transit the main channel with no wake at a maximum speed of five knots, and to use extreme caution on the river at all times.
More New NY Bridge boater safety information, including the U.S. Coast Guard Notice to Mariners, and construction site maps, can be found here at NewNYBridge.com. An interactive map showing vessel locations on the Hudson River is also available here for recreational and commercial boaters to get updated information on this very active construction zone. The GPS tracking map is for informational purposes and not intended for navigation.
Mariners should be aware that TZC will continue work in the vicinity of the side channels under the existing bridge. Additional temporary navigational lights have been installed to further define the 600-foot navigation channel under the main span. Permanent elements of the new bridge are illuminated at night as are all moorings, barges and other equipment.
Lane Closures for New York State Thruway (I-87/I-287):
| Monday | Aug 4 | Northbound, Right Lane near Exit 9 | 10 a.m. to 3 p.m. |
| Monday | Aug 4 | Northbound, Right Lane approaching the Tappan Zee Bridge | 9 p.m. to 5 a.m. |
| Tuesday | Aug 5 | Northbound, Right Lane approaching the Tappan Zee Bridge | 9 p.m. to 5 a.m. |
| Wednesday | Aug 6 | Northbound, Right Lane approaching the Tappan Zee Bridge | 9 p.m. to 5 a.m. |
| Thursday | Aug 7 | Northbound, Right Lane approaching the Tappan Zee Bridge | 9 p.m. to 5 a.m. |
| Friday | Aug 8 | Northbound, Right Lane approaching the Tappan Zee Bridge | 9 p.m. to 5 a.m. |
Ongoing Operations:
- Permanent pile installation, including pile driving between 7 a.m. and 7 p.m. on weekdays, and between noon and 7 p.m. on Saturdays
- Pile cap foundation construction
- Main span foundation construction
- Rockland landing construction
- Westchester landing construction
- River Road utility work
- Rockland trestle construction, including pile driving
- Survey inspections on existing bridge
- Support for river-based work from the Rockland trestle