TARRYTOWN, N.Y. – The first test piles for the new Tappan Zee Bridge will be installed this week, the New York State Thruway Authority announced .
Test-pile operations will be conducted by Tappan Zee Constructors, LLC over the next three months at the proposed locations for pile foundations, the announcement said. The test-pile program will verify subsurface conditions in preparation for the construction of the bridge’s permanent foundation, according to the state.
Crews will conduct boring operations at night along I-87 and I-287 in Westchester and Rockland counties. Boring operations will begin at exit 10 in Rockland and move west into Westchester.
Westchester: On Friday, nighttime boring operations to investigate subsurface soil conditions will be conducted in the southbound shoulder of I-87/I-287 and will require a temporary right lane closure between the existing bridge and exit 9 from 9 p.m. to 6 a.m.
Rockland side: Until Thursday, nighttime boring operations to investigate subsurface soil conditions will be conducted in the southbound shoulder of I-87/I-287 and will require a temporary right lane closure between exit 10 and the existing bridge from 9 p.m. to 6 a.m.
Other ongoing operations include:
- Temporary Westchester trestle construction including pile driving on weekdays from 7 a.m. to 7 p.m.
- Survey inspections on existing bridge
- Rockland environmental monitor installations continue
- Geotechnical land borings
- Mobilization at the exit 10 staging area
- Support for river-based work from the Rockland shoreline
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