(The work described below could cause vibrations that would be felt by nearby residents.)
Geosynthetic Reinforced Earth System to Hold Back Embankment at Exit 10
Building the footings for a new temporary all-electronic-toll collection system gantry requires the installation of an embankment wall on the south side of the New York State Thruway (I-87/I-287) near exit 10 in South Nyack. Called a geosynthetic reinforced earth system wall, the structure is a 160-foot long synthetic mat placed on the hillside parallel to the Thruway, which will be secured by cables anchored into the earth. While less intrusive than a typical retaining wall, the installation will require the use of jack hammers. Carried out during daylight hours, the work is scheduled to begin on December 15 and be completed in one week, depending on weather conditions.