TZC Prepares Traffic Shift In Westchester And Rockland Overnight Lane and Ramp Closures Scheduled
Press Release January 17, 2019 No Comments

TZC Prepares Traffic Shift In Westchester And Rockland Overnight Lane and Ramp Closures Scheduled

January 17, 2019

Tappan Zee Constructors (TZC) is scheduled to realign Rockland-bound traffic near the Westchester landing, removing the traffic split, during the overnight of Friday, Jan. 18, weather permitting. The work will require overnight lane closures on the northbound/westbound New York State Thruway (I-87/I-287) starting at 8 p.m. and a temporary closure of the exit 9 (Tarrytown – Sleepy Hollow – US Route 9) northbound on-ramp from 8 p.m. until 6 a.m. Saturday. Northbound/westbound drivers will be detoured to the exit 8 on-ramp, shown below.


Additional work and lane closures are scheduled to occur near the Rockland landing during the overnights of Tuesday, Jan. 22, and Wednesday, Jan. 23, weather permitting. At least one Rockland-bound lane will remain open except when State Police stop and temporarily hold traffic for approximately 15 minutes during the early morning hours of Thursday, Jan. 24. There will be no lane closures in the Westchester-bound direction.

The new traffic configuration will allow TZC to continue roadway improvements near the Governor Mario M. Cuomo Bridge.

Specific lane and ramp closure times are listed in the chart below.


Fri. 1/18 8 p.m. – One right lane
10 p.m. – Two right lanes
11:59 p.m. – Three right lanes
9 a.m., Sat. 1/19 Northbound (I-87/I-287)
from exit 8a to exit 10
Fri. 1/18 8 p.m. – Ramp closure 6 a.m., Sat. 1/19 Northbound
exit 9 on-ramp
Tues. 1/22 7 p.m. – One right lane
8 p.m. – Two right lanes
11 p.m. – Three right lanes
7 a.m., Wed. 1/23 Northbound
from exit 8a to exit 10
Wed. 1/23 7 p.m. – One right lane
8 p.m. – Two right lanes
11 p.m. – Three right lanes
7 a.m., Thur. 1/24 Northbound
from exit 8a to exit 10

Additional work includes:

  • Removal of east anchor span materials
  • Excavation, grading and barrier installation near bridge landings
  • Rebar installation bicycle/pedestrian path barrier
  • Dismantling of the old bridge’s pile caps, piles and caissons
  • Fence installation and internal work on Thruway Maintenance and New York State Police facilities

Boater Safety
The eastern 300 feet of the 600-foot wide main navigation channel is closed to all vessel transits until further notice. Red buoys with all around white light have been set to mark the eastern side of the channel.

Periodic closures of the main navigation channel are anticipated to continue during the demolition period. 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

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 for real-time information regarding traffic conditions.