United Brothers Pro Construction Corp

Parking Garage Structural Repair & Restoration

Category Commercial
Location 370 East 76th Street, Manhattan, New York, NY, USA

This project involved the structural repair and restoration of an approximately 30,000-square-foot parking garage spanning the cellar and sub-cellar levels of a residential building at 370 East 76th Street, Manhattan. Because the garage had to remain partially operational, all repairs were planned and executed section by section.

Project Overview

This project involved the structural repair and restoration of an approximately 30,000-square-foot parking garage spanning the cellar and sub-cellar levels of a residential building at 370 East 76th Street, Manhattan. Because the garage had to remain partially operational, all repairs were planned and executed section by section.

The work addressed deteriorated slabs, beams, columns, and perimeter walls, and included the complete rebuilding of the boiler room area with a new double slab and strengthened steel framing. The photographs document concrete deliveries and pours, welding and reinforcement work at exposed rebar mats, and crews placing and finishing new slab sections.

Scope of Work

  1. Chipping and removal of deteriorated and delaminated concrete at slabs, beams, columns, and walls.
  2. Demolition, removal of debris, and carting away of all construction waste.
  3. Repair and replacement of slab-on-grade sections, including new reinforcement rebar mats.
  4. Installation of epoxy-set dowels to tie new concrete into the existing structure.
  5. Installation of plywood formwork for concrete pours; placement, screeding, and finishing of new concrete.
  6. Repair of the boiler room area, including a new double slab and renovation of the existing steel beams.
  7. Installation of new HSS steel columns to reinforce the existing structure.
  8. Repair of structural columns by welding, with additional steel reinforcement plates where required.
  9. Repair of existing beams and of the vertical perimeter (foundation) walls.
  10. Temporary shoring and support of the structure using shore jacks throughout the phased work.
  11. Installation of a new floor drain system at the cellar level, connected to the building's drainage.
  12. Application of a waterproof traffic coating to the finished slabs and painting of the surrounding surfaces.

Additional Notes

All operations were sequenced in coordination with building management so that each section could be isolated, repaired, cured, and returned to service before the next section began. Concrete deliveries were staged from street level with mixer trucks and power buggies feeding the cellar levels.


Project Gallery

Project Details

  • Category Commercial
  • Location 370 East 76th Street, Manhattan, New York, NY, USA
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