During the week of August 23 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.
Photos of construction activities are provided below.
During the week of August 30 the Gowanus Remediation Team began demobilizing the pipe pile barge configuration at the Carroll Street bridge.
The Carroll Street Bridge has been closed to roadway and sidewalk traffic to support operations on the EPA mandated remediation of the Gowanus Canal. Currently evaluation of the bridge is underway before it is reopened to traffic. NYC DOT, EPA and the Gowanus Remediation Team will provide updates as this process continues.
While the Carroll Street Bridge is closed, please plan to use an alternative route to cross the canal. The suggested detour is via Union Street. Please be advised that all bridges along the canal (Hamilton Ave., 9th St., 3rd St., Carroll St., and Union St.) are subject to intermittent openings while work is ongoing to facilitate access for construction vessels.
Demobilizing the barge configuration will last for several weeks and will be followed by mobilization for In Situ Stabilization (ISS).
This week crews prepared for forecasted inclement weather from the remnants of Hurricane Ida. Materials and equipment were carefully inspected and made storm ready.
Photos of construction activities are provided below.
During the week of September 6 the Gowanus Remediation Team continued demobilizing the work barges at the Carroll Street Bridge.
At the Union Street Bridge GRT workers removed sediment near the west abutment and reset a terminal box.
Materials were staged on the canal near Douglass Street in preparation for upcoming cofferdam removal and bulkhead installation.
Photos of construction activities are provided below.
During the week of September 13 the Gowanus Remediation Team continued removing sediment near the east side of the Union Street Bridge. Electrical workers conducted maintenance on the bridge’s lighting systems.
Demobilization of the work barges at the Carroll Street Bridge was completed.
The GRT has identified an obsolete cofferdam structure located in the canal near Douglass Street. This structure has been identified for removal and will be removed using a crane staged upland on Douglass Street.
To operate the crane there will be a partial road closure in place starting next week on Douglass street, between Bond Street and the Gowanus Canal. The road closure will start at the dead end of Douglass Street near the bulkhead and will extend for seventy five (75) feet west toward Bond Street. When the closure is in place the roadway and sidewalks within the work zone will be inaccessible to vehicular and pedestrian traffic. The work zone is shown in the figure below. The GRT conducted targeted outreach to local stakeholders on Douglass Street to coordinate access and share information regarding this road closure.
Photos of construction activities are provided below.
During the week of September 20 the Gowanus Remediation Team continued removing sediment near the east side of the Union Street Bridge. Sediment is being removed using a vacuum truck staged on the deck of the bridge.
This week the GRT began removal of an obsolete cofferdam structure located in the canal near Douglass Street. This structure is being removed using a crane staged upland on Douglass Street. There will be a partial road closure in place at the dead end of Douglass Street near the bulkhead and will extend for seventy five (75) feet west toward Bond Street. When the closure is in place the roadway and sidewalks within the work zone will be inaccessible to vehicular and pedestrian traffic.
Photos of construction activities are provided below.
During the week of September 27 the Gowanus Remediation Team continued removing sediment near the east side of the Union Street Bridge. Sediment is being removed using a vacuum truck staged on the deck of the bridge.
GRT workers continued removing an obsolete cofferdam structure located in the canal near Douglass Street. This structure is being removed using a crane staged upland on Douglass Street. There is a partial road closure in place at the end of Douglass Street near the bulkhead that extends for seventy five (75) feet west toward Bond Street. While the closure is in place the roadway and sidewalks within the work zone will be inaccessible to vehicular and pedestrian traffic.
Photos of construction activities are provided below.
During the week of October 4 the Gowanus Remediation Team continued removing sediment near the Union Street Bridge. Sediment is being removed using a vacuum truck staged on the deck of the bridge.
GRT workers continued removing an obsolete cofferdam structure located in the canal near Douglass Street. This structure is being removed using a crane staged upland on Douglass Street. There is a partial road closure in place at the end of Douglass Street near the bulkhead that extends for 75 feet west toward Bond Street. While the closure is in place the roadway and sidewalks within the work zone will be inaccessible to vehicular and pedestrian traffic.
Photos of construction activities are provided below.
During the week of October 11 the Gowanus Remediation Team continued removing sediment near the Union Street Bridge.
The cofferdam removal at the Douglass Street bulkhead was completed and the upland workzone was demobilized.
Over the coming weeks the GRT will prepare for a demonstration of In Situ Stabilization (ISS), a remediation process by which contaminants are rendered immobile through reactions with stabilizing compounds mixed directly into the soil or sediment. The upcoming demonstration will involve stabilization of a small target area, followed by analysis of the results. The demonstration is expected to be completed in Winter 2021.
In addition, the GRT is preparing to install sheet pile bulkheads at Degraw street, along the west side of the Canal. Bulkhead installation will begin at Degraw street in November.
Photos of construction activities are provided below.
During the week of October 18, the Gowanus Remediation Team (GRT) began a demonstration of In-Situ Stabilization (ISS). ISS is a remediation process by which contaminants are rendered immobile through reactions with stabilizing compounds mixed directly into the soil or sediment. The demonstration will involve stabilization of a small target area, followed by analysis of the results, and is expected to be completed in Winter 2021.
Sediment removal near the Union Street Bridge will continue over the coming weeks.
The GRT continued preparing for sheet pile bulkheads installation along the west side of the Canal near Degraw Street.
Photos of construction activities are provided below.
During the week of October 25 the Gowanus Remediation Team (GRT) continued the demonstration of In Situ Stabilization (ISS). ISS is a remediation process by which contaminants are rendered immobile through reactions with stabilizing compounds mixed directly into the soil or sediment. The demonstration involves stabilization of a small target area, followed by analysis of the results and is expected to be completed in Winter 2021.
Sediment removal near the Union Street Bridge remains ongoing. Sediment is being removed using a vacuum truck staged on the roadway.
The GRT continued preparing for sheet pile bulkheads installation along the west side of the Canal near Degraw Street. Bulkhead installation is expected to begin in late November.
Photos of construction activities are provided below.
To contact the Gowanus Remediation Team please email info@gowanussuperfund.com or call the hotline at (718) 569-5762.