December 6, 2019

National Grid’s contractor, Posillico Environmental, is implementing bulkhead barrier wall construction related to the Fulton former Manufactured Gas Plant (MGP) Site in accordance with the EPA-approved design.   This project includes replacing approximately 880 linear feet of existing bulkheads along the eastern side of the Gowanus Canal from the canal’s head end (at Butler Street) to the Union Street Bridge.  The new bulkhead barrier wall will include steel sheet piling with an anchored support system that has been designed to serve as both an environmental barrier and be able to support the EPA’s planned canal dredging and capping remedy. Mobilization for this phase of the work began on August 28, 2019 and barrier wall construction is expected to occur over an approximately 12-month period.  Community air monitoring and construction monitoring for vibration and movement is being performed throughout the project.

Completed Activities

Pre-clearing the bulkhead alignment of debris and potential obstructions to allow mobilization of equipment to the head end of the canal and facilitate construction of the barrier wall was recently completed.  All debris removed during this pre-clearing was deemed to be not culturally significant and approved for off-site disposal by EPA.

On-Going Activities

  • Preparing the upland area for pre-drilling of the bulkhead alignment.
  • Test pitting for utility locations.
  • Completion of the installation of the sound curtain at the 270 Nevins Street (Parcel I) property along the canal in the area between DeGraw and Sackett Streets.
  • Air monitoring.
  • Movement and vibration monitoring at Parcels I, VI (242 Nevins Street), VII (234 Butler Street), and the head end of the canal.
  • Noise monitoring.
  • Delivery of project related construction materials.
  • Pre-condition surveys.

Upcoming Activities

The next step in constructing the barrier wall will be pre-drilling soils along the wall alignment within the canal to help improve the soil conditions for installing the sheet piles.  Mobilization of drilling equipment, a specialty barge, and a water treatment system to support the drilling will take place over the next two weeks.  It is currently anticipated that this drilling work will begin the week of December 16, 2019 and will take approximately 3 months to complete.  
It is expected that construction of the sound curtain between the Parcel I building and the canal will be completed in December 2019.

Community Air Monitoring Plan Summary

Air quality monitoring is being performed consistent with the Community Air Monitoring Plan (CAMP) for the Fulton Site using a MiniRAE 3000+ PID for volatile organic compounds (VOCs) and TSI Dust Trak DRX Dust Meter. No VOC or dust levels have been detected above Action levels during working hours to date.

Contact Information

National Grid will provide updates as the work at the site proceeds.  For more information, please leave a message on our hotline at (718) 982-7349 or email us at

Website Update Information

National Grid will provide regular activity updates during construction of the Fulton barrier wall.  During the mobilization and site set-up phase, these updates are being provided on an approximately bi-weekly basis.  Once barrier wall construction is underway, these updates will be provided approximately weekly.  All updates will be archived under the Key Documents tab of this website.

Preparing upland area for pre-drilling of bulkhead alignment.

Preparing upland area for pre-drilling of bulkhead alignment.

Installation of Sackett Street Sound Curtain Gate.