Tappan Zee Constructors (TZC) continues to prepare the new bridge’s roadway in Rockland and Westchester counties. Part of this effort involves preparing precast slab installation in South Nyack this week. TZC is also scheduled to complete precast slab installation in Tarrytown in the coming days.
Other construction activities near the bridge’s landings will require the use of machines to break pavement, cut deck panels and remove the abutments of the Tappan Zee Bridge. TZC will utilize noise abatement measures in the area and continue to monitor noise and vibration levels as work continues.
The operations will require multiple overnight lane closures of New York State Thruway (I-87/I-287) southbound/eastbound traffic lanes from exit 11 (Nyack – South Nyack – US Route 9W) to exit 9 (Tarrytown – Sleepy Hollow – US Route 9).
Work will also require the overnight closure of the southbound/eastbound Thruway exit 10 (Nyack – South Nyack – US Route 9W) on-ramp. Southbound/eastbound drivers will be detoured to the exit 11 (Nyack – South Nyack – US Route 9W) on-ramp, shown below.
All four Rockland-bound (northbound/westbound) lanes will remain open during the operation. Specific lane and ramp closure times are listed in the chart below.
| DATE: | CLOSURES BEGIN: | CLOSURES END: | LOCATION: |
| Fri., 10/20 | 9 p.m. – Ramp closure | 6 a.m., Sat., 10/21 | Southbound (I-87/I-287) exit 10 on-ramp |
| Fri., 10/20 | 7 p.m. – One right lane 9 p.m. – Two right lanes 11:59 p.m. – Three right lanes |
6 a.m., Sat., 10/21 – Two right lanes open 7 a.m., Sat., 10/21 – Three right lanes open 2 p.m., Sat., 10/21 – All lanes open |
Southbound from exit 11 to exit 10 |
| Mon., 10/23 | 9 p.m. – Ramp closure | 5 a.m., Tues., 10/24 | Southbound exit 10 on-ramp |
| Mon., 10/23 | 7 p.m. – One right lane 8 p.m. – Two right lanes 11 p.m. – Three right lanes |
5 a.m., Tues., 10/24 – Two right lanes open 6 a.m., Tues., 10/24 – All lanes open |
Southbound from exit 11 to exit 10 |
| Tues., 10/24 | 9 p.m. – Ramp closure | 5 a.m., Wed., 10/25 | Southbound exit 10 on-ramp |
| Tues., 10/24 | 7 p.m. – One right lane 8 p.m. – Two right lanes 11 p.m. – Three right lanes |
5 a.m., Wed., 10/25 – Two right lanes open 6 a.m., Wed., 10/25 – All lanes open |
Southbound from exit 11 to exit 10 |
| Wed., 10/25 | 9 p.m. – Ramp closure | 5 a.m., Thur., 10/26 | Southbound exit 10 on-ramp |
| Wed., 10/25 | 7 p.m. – One right lane 8 p.m. – Two right lanes 11 p.m. – Three right lanes |
5 a.m., Thur., 10/26 – Two right lanes open 6 a.m., Thur., 10/26 – All lanes open |
Southbound from exit 11 to exit 10 |
| Thur., 10/26 | 9 p.m. – Ramp closure | 5 a.m., Fri., 10/27 | Southbound exit 10 on-ramp |
| Thur. ,10/26 | 7 p.m. – One right lane 8 p.m. – Two right lanes 11 p.m. – Three right lanes |
5 a.m., Fri., 10/27 – Two right lanes open 6 a.m., Fri., 10/27 – All lanes open |
Southbound from exit 11 to exit 10 |
| Fri., 10/27 | 9 p.m. – Ramp closure | 5 a.m., Sat., 10/28 | Southbound exit 10 on-ramp |
| Fri., 10/27 | 8 p.m. – One right lane 9 p.m. – Two right lanes 11:59 p.m. – Three right lanes |
6 a.m., Sat., 10/28 – Two right lanes open 8 a.m., Sat., 10/28 – All lanes open |
Southbound from exit 11 to exit 10 |
River Road Closure
TZC is dismantling the Tappan Zee Bridge to complete the second span of the Governor Mario M. Cuomo Bridge. The demolition effort requires a complete closure of River Road in South Nyack/Grand View underneath the Tappan Zee Bridge which is scheduled to extend into early November. Project safety personnel are monitoring the closure site around the clock.
The work requires the use of mobile cranes and other equipment as TZC removes large sections of concrete and steel from the area, employing noise mitigation techniques to minimize impacts to residents. Work is scheduled to occur six days per week (Monday through Saturday), between the hours of 6 a.m. and 10 p.m. – however the area remains inaccessible to motorists at all times. Vehicular traffic is instead being detoured to Route 9W.
To safely accomplish the demolition, TZC and the New York State Thruway Authority are working closely with emergency and first responder agencies, Rockland County transportation officials, elected officials, affected school districts, and commercial bus companies that service the area. Alternate routes for commuter buses have been established. Emergency vehicles are being provided access as needed.
Pedestrians and cyclists have limited access to River Road. Project safety personnel will hold pedestrians and cyclists for up to an hour on weekdays and up to 15 minutes on Saturdays. Access will be provided without extended waiting periods on Sundays, however the Thruway Authority strongly encourages travelers to avoid the area until construction operations conclude in early November.
Additional work includes:
- Support for river-based work from the Rockland trestle
- Pier substructure work
- Expansion joint operations
- Internal tower work
- Maintenance dock construction
- Electrical equipment installation and testing
- Construction of maintenance and state police facilities
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.
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.
