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Structural Rehabilitation of Rockaway Line Viaduct, Phase II, Jamaica Bay Crossing
Reconstruction of the existing concrete viaduct carrying the A train over Jamaica Bay. Work includes concrete T-beam repairs by removal of unsound concrete, installation of new reinforcing, forming of arched beam shape, and pumping new concrete as required to enlarge and encapsulate existing beams; overhead concrete spall repairs and removal of exisiting fiberglass forms. All work was performed over water from barges, floats and movable suspended platforms. New concrete was batched on a barge and pumped into place.
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NYSDOT Meadowbrook and
Loop Parkway Bascule Bridges
Replacement and repair of structural and operating components for both the Loop Parkway and Meadowbrook Parkway Bascule Bridges.
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Reconstruction of the Throgs Neck Bridge Approach Spans
GCCOM replaced 130 foot long damaged girders, performed heat straightening of major structural members, performed structural steel repairs and installed the shield/work platform below the approach spans.
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Emergency Structural Steel Repairs to the 31st Bridge over I-278
Structural Steel Repair, Replacement, Temporary Support and Jacking as required to repair the damage caused to the Bridge by an impact from an oversized vehicle using the expressway below.
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Columbia University Suspension Bridge Main Cable Grant Study
GCCOM brought their cable compacting equipment and expertise to the Columbia University Civil Engineering Testing Lab and compacted and banded the world’s only physical model of a bridge suspension cable under tension. The university under a federal grant is performing a variety of tests to determine which type of sensors can most accurately measure conditions within the cable. These sensors will be used in the future to determine the condition of existing bridge cables and to provide real time monitoring of loads and conditions within suspension bridge cables.
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New York Post Foundation Study
GCCOM took 8 foot deep concrete cores through existing floor slabs, heavy press equipment foundations, terminating inside concrete filled steel pipe piles. This was done to establish the current condition of existing foundations and to locate the supporting piles, as required for the completion of a new design for the addition of new press equipment.
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Throgs Neck Bridge Remove existing catwalks, furnish and install new catwalks below the bridge roadway. Replace four suspender ropes, open main cables, replace sections of cable wire, rewrap main cable segments. Perform structural steel repairs.
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Brooklyn Bridge
Remove existing travelers and traveler rail system. Furnish and install four new bridge maintenance travelers, new structural steel tracks and supports, new machinery, and new electrical contact rail.
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Stickle Bridge
Route I-280, New Jersey
Furnish and install structural steel end anchors and assemblies as required for under deck shield/work platform.
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Rikers Island Bridge
Queens, New York
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KeySpan Citizens Gate Tunnel Structural Platforms
Brooklyn, New York
Furnish and Install Structural Steel and Platform Grating at base of Gowanus Canal Gas Tunnel Shafts. All work was done in conformance with confined space regulations.
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Replacement of the Ninth Street Bridge over the Gowanus Canal
Brooklyn, New York
Removal of a twin leaf bascule bridge and replacement with a vertical lift bridge.
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Verizon Building (Ground Zero) Shoring and Structural Steel Repairs
Initial stabilization of the existing steel structure that was impacted by the collapse of the World Trade Center Building Number 7.
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Astoria Energy Phase 1
500 MW Combined Cycle Plant
Erection and assembly of air-cooled condenser and turbine exhaust ducting.
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Rehabilitation of the Brooklyn Queens Expressway Meeker Avenue Viaduct,
Brooklyn, New York
Complete reconstruction of one mile of the Brooklyn Queens Expressway
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Coney Island Parachute Drop Structural Rehabilitation
Disassemble and reassemble the tower and perform structural steel repairs.
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32 Avenue of the Americas
Structural Steel and Tower Erection
Addition of mechanical equipment floors and two 180 foot tall cell towers to existing AT&T headquarters building.
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Whitestone Bridge
Removal of Stiffening Truss and Erection of Wind Fairing
Removal of the steel stiffening truss and replacement with a fiberglass wind fairing.
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Goethals Bridge Removal of Lead Based Paint, Repainting of Truss Span and
Structural Steel Rehabilitation
Work included the installation of work platforms / protective shielding below and above the active roadway, jacking and replacement of upper cord bearings, installation of sidewalk shoring, installation of new access ladders to the existing top truss cords, rivet removal replacement with high strength bolts, and lacing bar removals and reinstallation.
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New York Post Port Morris Plant Structural Repairs
Bronx, New York
Design Build / Reconstruct, the second floor inserting room concrete slab and its structural steel support members, using phased construction to enable the facility to maintain full production of the New York Post throughout the project duration.
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Replacement of the 102nd Street Bridge over Hawtree Basin
Howard Beach, New York
Removal of existing bridge consisting of 2 timber spans flanking a steel main span, all of which were supported by timber piles and caps. Construction of new abutments, wing walls, piers, steel superstructure, and concrete deck.
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George Washington Bridge Structural Steel Repairs
Structural Steel Repairs to and replacement of the tower diagonal members, including installation of temporary support struts.
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Reconstruction of the Macombs Dam Bridge, New York
The complete reconstruction of approximately 1 mile of elevated roadways and ramps which crossed 161st Street in Manhattan, the Yankee Stadium Parking lots, the Major Degean Expressway, Metro North Tracks, a Con Rail Freight Track , the East River, the FDR, and 155th street in the Bronx.
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Replacement of Route 35 Bridge over the Navesink River
Section 8M, Monmouth County, New Jersey
The work included the phased construction of a new Signature Rte. 35 – Cooper’s Bridge over the Navesink River between Middletown Township and Red Bank in Monmouth County, New Jersey.
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Rehabilitation of the 102nd Street Bridge over the Grand Central Parkway
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Pier and Bulkhead Construction for the Strategic Homeport Naval Station
Staten Island, New York
Construction of a 1410’ long x 90’ wide concrete pier and a 1600’ long steel sheet pile bulkhead as required to berth the Navy’s USS IOWA Destroyer Group.
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KeySpan Citizens Gate Tunnel Structural Steel Repairs
Brooklyn, New York
Structural Steel Repairs to shaft and tunnel support members and the construction of a new canopy over the east access shaft.
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New York Times Company College Point Printing Facility
Replacement of Underground Utilities
Replacement of the existing sanitary, storm, and acid waste piping both under and adjacent to the facility.
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New York Post Port Morris Plant Forensic Structural, Mechanical, and Electrical Study
Bronx, New York
The relatively new Port Morris Print Facility was experiencing problems with Structural, HVAC, and Electrical systems. We spearheaded the investigation into these areas and assembled a renowned group of professional engineering firms to perform a detailed forensic analysis.
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KeySpan Ravenswood Power Station Structural Steel Repairs
Performed structural steel repairs at the boiler and pump room levels of the original Ravenswood Power Generation Station. Work included installation of strengthening plates, replacement of beams, installation of new grating and railings.
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Construction of New Maintenance Facility and Train Car Repair Shop for the Long Island Railroad
Queens, New York
Construction of the largest maintenance and repair facility for commuter trains in North America, over 1,000,000 SF.
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Reconstruction of the Thompson Avenue Bridge over the Sunnyside Railroad Yard
Long Island City, New York
Description: Construction of two new ramps from the upper level of the Queensboro Bridge to the Thompson Avenue Bridge.
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Removal of World Trade Center Building Number 7
Removal of structural steel after the terrorist destruction of the World Trade Center.
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