2021 Progress Updates

Progress Update, Week of June 21, 2021

During the week of June 21 the Gowanus Remediation Team continued with ongoing pile driving operations.

Crews installed pipe piles at the southeast and southwest corners of the Carroll Street bridge. Pipe piles are being installed at the Carroll Street bridge to create bulkheads that will support the bridge abutments during future phases of dredging.

While pile driving operations are underway there may be elevated levels of noise or vibrations produced by the associated equipment. Our crews continue to monitor project related noise and vibrations in real time to ensure that all work is completed safely.

Our crews continue to perform a variety of supporting activities to facilitate the pile driving operations including installing scaffolding, delivering materials, testing equipment, and maneuvering vessels.

Additional supporting activities continued at the Union Street bridge to prepare for upcoming replacement of submarine cables that are a part of the bridge’s control system.

Looking ahead, next week our crews will begin to reconfigure the work barge positioning around the Carroll Street bridge. This new configuration will be necessary for our equipment to access the canal-facing sides of the bridge abutments. The reconfiguration process will last for approximately three weeks.

Additional supporting activities will be conducted next week to remove debris that are on the west side of the Canal, north of Union Street.

Starting next week crews will begin debris removal and bulkhead replacement on the western bank of the canal near Degraw Street. Further debris removal and bulkhead replacement is expected to take place on the west side of the canal near Douglass Street over the coming weeks.

Photos of construction activities are provided below.

*Installing a pipe pile at the southeast corner of the Carroll Street bridge.*

*Installing a pipe pile at the southwest corner of the Carroll Street bridge.*

*Installing another pipe pile at the southwest corner of the Carroll Street bridge.*

Progress Update, Week of June 28, 2021

During the week of June 28 the Gowanus Remediation Team continued with ongoing pile driving operations. Pipe piles are being installed at the Carroll Street bridge to create bulkheads that will support the bridge abutments during future phases of dredging.

Pipe piles have been installed at the southwest and southeast corners of the Carroll Street bridge. Monopiles, freestanding large diameter pilings, were installed off the southern corners of the bridge to protect the newly installed pipe pile bulkheads.

With installation complete on the south side of the bridge our crews began to reconfigure the work barge positioning around the Carroll Street bridge. This new configuration will be necessary for our equipment to access the canal-facing sides of the bridge abutments to continue with pipe pile installation. The reconfiguration process is expected to be completed by late July, 2021.

Debris was removed on the west side of the canal near Degraw Street along the bank of the canal. Further debris removal is expected to take place near Douglass Street on the west side of the canal over the coming weeks.

Additional supporting activities continued at the Union Street Bridge to prepare for upcoming replacement of submarine cables that are a part of the bridge’s control system.

Photos of construction activities are provided below.

*During the week of June 28 the Gowanus Remediation Team continued with ongoing pile driving operations.*

*Completed monopile installation at the Carroll Street bridge, southeast corner.*

*Breakdown of crane assembly for barge repositioning.*

Progress Update, Week of July 5, 2021

During the week of July 5 the Gowanus Remediation Team continued repositioning the work barges around the Carroll Street bridge. This new configuration is necessary for construction equipment to access the canal-facing sides of the bridge abutments. The reconfiguration process is expected to be completed by late July.

Once the new configuration has been completed pipe pile installation will continue. Pipe piles are being installed at the Carroll Street bridge to create bulkheads that will support the bridge abutments during future phases of dredging.

Debris removal remains ongoing at the west side of the canal near Douglass Street. Debris removal will continue over the coming weeks.

Additional supporting activities continued at the Union Street Bridge to prepare for upcoming replacement of submarine cables that are a part of the bridge’s control system.

Photos of construction activities are provided below.

*Setting crane mats onto a mini hopper barge for reconfiguration.*

*Relocating the work barge in preparation for disassembly.*

*Transporting a barge with support crane south of 3rd Street.*

*Laying out submarine cables at Union Street bridge.*

Progress Update, Week of July 12, 2021

During the week of July 12 the Gowanus Remediation Team continued repositioning the work barges around the Carroll Street bridge. This new configuration is necessary for construction equipment to access the canal-facing sides of the bridge abutments. The reconfiguration process is expected to be completed by late July.

Debris removal remains ongoing at the west side of the canal near Douglass Street. Debris removal will continue over the coming weeks.

Additional supporting activities continued at the Union Street Bridge to prepare for upcoming replacement of submarine cables that are a part of the bridge’s control system.

Photos of construction activities are provided below.

*During the week of July 12 the Gowanus Remediation Team continued repositioning the work barges around the Carroll Street bridge.*

*Preparations for pipe pile installation along the east abutment at the Carroll Street bridge.*

Progress Update, Week of June 14, 2021

During the week of June 14 the Gowanus Remediation Team continued with ongoing pile driving operations.

Crews completed pipe pile installation at Turning Basin 1 (TB-1), located between 3rd Street and Carroll Street. Pipe piles were installed at TB-1 to create a temporary separation wall that will support fill materials on the upland side of the canal while dredging occurs within the turning basin.

With pipe pile installation complete at TB-1, crews remobilized to continue pipe pile installation at the southeast corner of the Carroll Street Bridge. Pipe piles are being installed at the Carroll Street Bridge to create bulkheads that will support the bridge abutments during future phases of dredging.

While pile driving operations are underway there may be elevated levels of noise or vibrations produced by the associated equipment. Our crews continue to monitor project related vibrations in real time to ensure that all work is completed safely.

Additional supporting activities continued at the Union Street Bridge to prepare for upcoming replacement of submarine cables that are a part of the bridge’s control system.

Photos of construction activities are provided below.

*Setting up a pipe pile at TB-1 prior to installation.*

*Setting up another pipe pile at TB-1 prior to installation.*

*Setting up a pipe pile prior to installation at the Carroll Street Bridge.*

Progress Update, Week of July 19, 2021

During the week of July 19 the Gowanus Remediation Team continued repositioning the work barges around the Carroll Street bridge. This new configuration is necessary for construction equipment to access the canal-facing sides of the bridge abutments for pipe pile installation. Pipe piles are being installed at the Carroll Street bridge to create bulkheads that will support the bridge abutments during future phases of dredging. The reconfiguration process is expected to be completed by late July.

Pipe pile installation will continue along the canal-facing sides of the bridge abutments once the new barge configuration has been completed. This week crews commenced with additional preparations for pipe pile installation. Welders installed steel support structures for the upcoming installation work. Additionally, divers conducted a survey of the bridge bulkheads.

Debris removal remains ongoing at the west side of the canal north of Union Street. This week debris was removed near Degraw street. Divers inspected the debris prior to removal. Debris removal will continue over the coming weeks.

Work is continuing at the Union Street Bridge. The submarine cables that are a part of the bridge’s control system are being replaced.

Photos of construction activities are provided below.

*Installation of crane equipment and steel support structure at the Carroll Street bridge, eastern abutment.*

*Debris removal work near Degraw Street.*

*Continued installation of cables at the Union Street bridge.*

Progress Update, Week of July 26, 2021

During the week of July 26 the Gowanus Remediation Team completed repositioning the work barges around the Carroll Street bridge. Pipe pile installation has resumed along the canal-facing sides of the bridge abutments. Pipe piles are being installed at the Carroll Street bridge to create bulkheads that will support the bridge abutments during future phases of dredging. Welders continued to install steel support structures for the upcoming installation work. Installed pipe piles are being waterproofed and filled with sand to prevent debris infiltration.

Debris removal has been completed at the west side of the canal near Degraw Street.

Work remains ongoing at the Union Street Bridge. The submarine cables that are a part of the bridge’s control system are being replaced.

Photos of construction activities are provided below.

*Installing a pipe pile at Carroll Street bridge.*

*View of reconfigured barges as seen from the Union Street bridge.*

*Installing a pipe pile along the eastern Carroll Street bridge abutment.*

*Install steel support structures for upcoming pipe pile installation.*

Progress Update, Week of August 2, 2021

During the week of August 2 the Gowanus Remediation Team continued pipe pile installation along the canal-facing sides of the Carroll Street bridge abutments. Pipe piles are being installed to create bulkheads that will support the bridge abutments during future phases of dredging. Installed pipe piles are being waterproofed and filled with sand to prevent debris infiltration and cut to an appropriate height as needed.

Work remains ongoing at the Union Street Bridge. The submarine cables that are a part of the bridge’s control system are being replaced.

Photos of construction activities are provided below.

*During the week of August 2 the Gowanus Remediation Team continued pipe pile installation along the canal-facing sides of the Carroll Street bridge abutments.*

*Crews inserting pipe cutting tool into pipe pile at the Carroll Street bridge.*

*Removing a cut section of a pipe pile.*

*Section of cut pipe piles shown along the eastern abutment of the Carroll Street bridge.*

Progress Update, Week of August 9, 2021

During the week of August 9 the Gowanus Remediation Team continued pipe pile installation along the canal-facing sides of the Carroll Street bridge abutments. Pipe piles are being installed to create bulkheads that will support the bridge abutments during future phases of dredging. Installed pipe piles are being waterproofed and filled with sand to prevent debris infiltration and cut to an appropriate height as needed.

The cable replacement work at the Union Street Bridge has been successfully completed.

Photos of construction activities are provided below.

*Workers inspect the sand layering at the Carroll Street bridge.*

*Cutting and removing cut sections of pipe piles at the Carroll Street bridge.*

*Testing the Union Street bridge after cable replacement.*

*A newly installed cable box at the Union Street bridge.*

Progress Update, Week of August 16, 2021

During the week of August 16 the Gowanus Remediation Team continued pipe pile operations at the Carroll Street bridge. Pipe piles are being installed to create bulkheads that will support the bridge abutments during future phases of dredging.

Installed pipe piles are being waterproofed and filled with sand to prevent debris infiltration and cut to an appropriate height as needed. Workers conducted a dive inspection at the bridge to record underwater conditions.

Photos of construction activities are provided below.