THIS WEEKEND INTO NEXT WEEK
One Lane of Northbound New York State Thruway (I-87/I-287) Closed During Overnights of Friday, June 26; Saturday, June 27 and Monday, June 29
One lane of the northbound New York State Thruway (I-87/I-287) from the Tappan Zee Bridge to exit 11 (Nyack – South Nyack – US Route 9W) will be closed from 9 p.m., Friday, June 26 to 10 a.m., Saturday, June 27. Additional single-lane closures will occur from 9 p.m., Saturday, June 27 to 7 a.m., Sunday, June 28 and from 8 p.m., Monday, June 29 to 3 a.m., Tuesday, June 30. Three lanes will remain open during these periods.
The closures will allow Tappan Zee Constructors, LLC (TZC) to safely install the foundations for a new temporary all-electronic toll collection system that will be employed until a permanent system is constructed in the location of the current toll plaza in Tarrytown.
All planned work is subject to postponement due to weather conditions.
NEXT WEEK AND BEYOND
Triple-Lane Closures, Periodic Traffic Stops of Northbound Thruway and Closure of Exit 10 On-ramp to Southbound Thruway During Overnights of Tuesday, June 30 and Wednesday, July 1.
Overnight triple-lane closures of the northbound Thruway from exit 9 (Tarrytown – Sleepy Hollow – US Route 9) to exit 11 (Nyack – South Nyack – US Route 9W) also will occur during the overnights of Tuesday, June 30 and Wednesday, July 1. The operation will start at 8 p.m. with the closing of one lane, followed by a second lane at 9 p.m. and a third at 11 p.m. All lanes will reopen by 6 a.m. the following day.
At least one lane will remain open at all times, except during periodic traffic stops lasting up to 10 minutes of all four lanes of the northbound Thruway near exit 11 (Nyack – South Nyack – US Route 9W), which will occur from 8 p.m., Tuesday, June 30 to 6 a.m., July 1. To ensure the public’s safety, the New York State Police will stop and hold all traffic approaching the area immediately before the traffic stops go into effect. Motorists will be permitted to enter the Thruway from all ramps during the traffic stops.
Additionally the exit 10 (Nyack – South Nyack – US Route 9W) off-ramp from the northbound New York State Thruway (I-87/I-287) will also be closed from 8 p.m. to 6 a.m. during the overnights of Tuesday, June 30 and Wednesday, July 1. Drivers will be directed to use exit 11 (Nyack – South Nyack – US Route 9W) as shown below:
The closures are necessary to allow lane restriping across the existing Tappan Zee Bridge.
Single-Lane Closures of Northbound Thruway During Morning Commute Periods on Monday, June 29; Tuesday, June 30 and Wednesday, July 1
Of note to northbound morning commuters, a single lane of the northbound Thruway from the Tappan Zee Bridge to exit 11 (Nyack – South Nyack – US Route 9W) will be closed from 3 a.m. to 10 a.m., Monday, June 29 as well as from 3 a.m. to 1 p.m., Tuesday, June 30 and Wednesday, July 1. The remaining three lanes will remain open during these periods.
The closures will allow TZC to safely install the foundations for a new temporary all-electronic toll collection system that will be employed until a permanent system is constructed in the location of the current toll plaza in Tarrytown.
Steel Girder Assemblies
As piers are finalized in the coming weeks and months,, steel girder assemblies for the approach span of the new bridge will continue being installed by the I Lift NY super crane.
Installation of Noise Barriers in South Nyack
Next week will see continued installation of foundations for noise barriers along the southbound Thruway between the South Broadway bridge and River Road. The work will involve drilling holes into the soil to install the foundations. After the foundations are installed, concrete panels that form the noise barriers will be installed. The barriers will be treated with sound-absorbing material to further reduce traffic noise to the nearby community.
River Road in South Nyack
River Road utility work will continue over the coming week. The work may require reducing River Road to one lane at times. TZC flag persons will direct traffic as needed and additional signage as well as other safety measures will be in place.
Foundation Work on the New Bridge
Marine crews are continuing work on bridge foundations next week by placing reinforcing steel and concrete in the piles, main span pile caps and approach span pile caps. The high-strength concrete is made on site by the project’s floating batch plants. Teams also will erect formwork for the cast-in-place pier columns, which eventually will support the new bridge’s road deck.
Crews also will continue working on the bridge’s landings at the Rockland and Westchester shorelines. The abutments, comprised of steel and concrete, will serve as strong bases where the new crossing meets the landside roadway.
Construction of pier 1 located near River Road in South Nyack will continue with the installation of H-piles. The piles are part of the foundation for the new bridge pier. Pile driving is restricted to 7 a.m. to 7 p.m., Monday through Friday and noon to 7 p.m., Saturday. TZC is implementing noise-reducing measures, including temporary noise barriers, to protect nearby residents. The project’s environmental compliance team will be on site to monitor noise levels during the operation.
Additionally, TZC will continue concrete placement for bridge foundations near the South Nyack shoreline. The concrete for this work is being acquired from local concrete suppliers and is delivered by truck to the Rockland trestle located off the Thruway’s southbound access ramp. Trucks exit the trestle to the Thruway via the northbound access ramp. The access ramps are used only by construction vehicles, providing a safe route directly to the work site and reducing traffic impacts on local roads.
- Additional work includes:
- Pile cap foundation construction
- Main span foundation construction
- Landing abutment concrete work
- Support for river-based work from the Rockland trestle
- Survey inspections on the existing bridge
- Westchester landings utility work
Boater Safety
During the summer months, Westchester and Rockland Marine Units will add extra patrols to monitor the construction zone and encourage all boaters to obey the established U.S. Coast Guard safety protocols.
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 5 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 the very active construction zone. The GPS tracking map is for informational purposes and not intended for navigation.
Mariners also 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 lit per U.S. Coast Guard requirements, as are all moorings, barges and other equipment.
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.
