Grouting of concrete roadway slabs for the second span of the new Tappan Zee Bridge will require closures of up to three lanes on the New York State Thruway overnight Friday into Saturday.
The closures on I-87/I-287 will be southbound/eastbound traffic lanes from Exit 11 (Nyack/South Nyack/Route 9W) to Exit 9 (Tarrytown/Sleepy Hollow/Route 9) starting at 9 p.m. Friday.
At least one lane will remain open at all times.
Lanes will begin to reopen at 6 a.m. Saturday. All four lanes will reopen by 10 a.m.
All four Rockland-bound (northbound/westbound) lanes will remain open during the operation. Specific lane closure times are listed in the chart below.
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