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P.S. 39 Bronx Flood Elimination Project

965 Longwood Avenue, Bronx, NY 10459
New York City School Construction Authority (NYCSCA)
1.8m

Project Overview

The P.S. 39 Bronx Flood Elimination project focused on waterproofing, structural repairs, and drainage upgrades to eliminate chronic water infiltration affecting the cellar and exterior areas of the school building. The scope included foundation waterproofing, site drainage improvements, masonry repairs, and interior restoration work while maintaining safe operations within an active NYC school facility. The project addressed existing violations related to porous foundation walls and water intrusion, improving long-term building performance and resiliency.

Architect / Engineer: Justin Latham, R.A. & Can Imamoglu

Key Challenges

  • Construction performed within an occupied school requiring strict safety measures, dust control, and phased work sequencing.
  • Waterproofing and structural repair work completed within confined cellar spaces and existing mechanical areas.
  • Integration of new drainage infrastructure and areaway repairs with existing building systems and exterior conditions.
  • Coordination of hazardous material testing and abatement in accordance with NYC SCA standards.

Detailed Scope of Work

  • Applied two-part injection systems and cementitious waterproofing at cellar slabs and perimeter walls experiencing water infiltration.
  • Repaired and refinished damaged interior surfaces including walls, ceilings, and floors affected by moisture intrusion.
  • Installed waterproofed ash hoist hatches, replaced exterior wood doors with hollow metal assemblies, and upgraded door saddles.
  • Replaced portions of roof areas including new roof drains and piping improvements.
  • Performed brick stitching, masonry repairs, and structural restoration at deteriorated foundation areas.
  • Cleaned, repaired, and hydro-jetted existing site drains and areaways; installed new inline drains and yard drainage systems.
  • Replaced sections of exterior walkway, curbs, landscaping, and provided regrading, seeding, and sod restoration.
  • Installed new joint fillers, replaced concrete landings, and completed exterior site restoration at building perimeter areas.
  • Conducted lead, PCB, and asbestos testing and coordinated abatement where required.
  • Completed final inspections, closeout documentation, and project turnover in accordance with NYCSCA standards.

P.S. 39 Bronx Flood Elimination Project: During Construction

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