Gantry maintenance operations will require a temporary closure of the New York State Thruway (I-87/I-287) exit 10 (Nyack – South Nyack – US Route 9W) southbound on-ramp from 10 p.m. tonight until 5 a.m. tomorrow. Southbound/eastbound drivers will be detoured to the exit 11 on-ramp, shown below.
Eastbound Span Roadway
Tappan Zee Constructors (TZC) is scheduled to continue work on the eastbound span roadway this week, requiring a single-lane closure on the southbound New York State Thruway (I-87/I-287) beginning near exit 11 (Nyack – South Nyack – US Route 9W) and extending across the new bridge on Monday, July 2, and Friday, July 6.
Additional work will require a single-lane closure on the northbound Thruway on Thursday, July 5, from exit 9 (Tarrytown – Sleepy Hollow – US Route 9) to exit 11.
Specific lane and ramp closure times are listed in the chart below.
| DATE: | CLOSURES BEGIN: | CLOSURES END: | LOCATION: |
| Thur., 6/28 | 10 p.m. – Ramp closure | 5 a.m., Fri., 6/29 | Southbound (I-87/I-287) exit 10 on-ramp |
| Mon., 7/2 | 10 a.m. – One right lane | 3 p.m. | Southbound from exit 11 to exit 9 |
| Thur., 7/5 | 6 a.m. – One right lane | 10 a.m. | Northbound from exit 9 to exit 11 |
| Fri., 7/6 | 10 a.m. – One right lane | 1 p.m. | Southbound from exit 11 to exit 9 |
TZC is also preparing to pour concrete for the eastbound span over River Road in Grand View following the completion of steel girder and precast deck panel installation in the area. The work is scheduled to occur on Monday, July 2. Motorists should expect traffic to be reduced to a single lane between 7 a.m. and 5 p.m. Flag persons will be on site to facilitate the lane closing and maintain traffic safety.
Maintenance and State Police Facilities
TZC is scheduled to continue operations on the new State Police facility in Tarrytown, including wall framing, metal wall panel installation and pouring concrete. TZC will also continue internal work on the Thruway Authority’s new maintenance building in Tarrytown, which includes installing utility lines, solar shades, windows and fire protection. TZC is also completing the facility’s stair towers, exterior wall panels and rooftop.
Additional work includes:
- Backfilling and paving near Westchester landing
- Barrier and conduit installation near Rockland landing
- Expansion joint installation
- Deck panel installation
- Removing temporary access structures
- Internal tower work
- Electrical equipment installation and testing
- Dismantling of the old bridge’s icebreakers, deck panels, piers and circular caissons
Boater Safety
Periodic closures of the main navigation channel are anticipated to occur during construction and demolition periods. 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.
All lane closures are subject to change due to traffic, weather or emergency situations. Please visit https://www.thruway.ny.gov/travelers/map/ for real-time information regarding traffic conditions.
