LANDMARKS PRESERVATION COMMISSION 343 CANAL STREET NEW YORK, NY - - PowerPoint PPT Presentation

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LANDMARKS PRESERVATION COMMISSION 343 CANAL STREET NEW YORK, NY - - PowerPoint PPT Presentation

Oct 19, 2022 482 likes •848 views

LANDMARKS PRESERVATION COMMISSION 343 CANAL STREET NEW YORK, NY JULY 24 TH , 2018 343 CANAL STREET AREA OF WORK NEW CONSTRUCTION Aerial View The 5-story building is located on a 2,275 sf lot along Canal Street in the SoHo Cast Iron

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LANDMARKS PRESERVATION COMMISSION 343 CANAL STREET NEW YORK, NY JULY 24TH, 2018

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The 5-story building is located on a 2,275 sf lot along Canal Street in the SoHo – Cast Iron Historic District in Manhattan. The existing rear yard addition is constructed of load bearing masonry with a vaulted cast iron roof. Due to the deteriorated condition of the structural elements, the rear yard addition was deemed unsalvageable, and the demolition and replacement proposed. The adjacent property at the corner of Greene Street and Canal Street is a 6-story mixed-use, commercial and residential building, currently under construction. With the completion of the adjacent property, the rear yard will be inaccessible for any future repairs. FasTrack service is requested to meet the deadline.

Canal Street Facade Aerial View 343 CANAL STREET AREA OF WORK NEW CONSTRUCTION 343 CANAL STREET - SITE INFORMATION PVE ENGINEERING - LLC

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STRUCTURAL DEFICIENCIES

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Exterior of Rear Addition

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343 CANAL STREET – AREA OF WORK PVE ENGINEERING - LLC

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343 CANAL STREET – STRUCTURAL DEFICIENCIES PVE ENGINEERING - LLC

RUPTURED STEEL RUPTURED STEEL RUPTURED STEEL THROUGH-WALL CRACK DETERIORATED MASONRY DETERIORATED MASONRY

Interior of Rear Addition – Structural Deficiencies

SEPARATING ROOF PANELS DELAMINATED CAST-IRON ELEMENTS DETERIORATED CAST-IRON ELEMENTS DAYLIGHT

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Delaminating Cast-Iron

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343 CANAL STREET – STRUCTURAL DEFICIENCIES PVE ENGINEERING - LLC Ruptured Steel Delaminating Cast-Iron, Visible Tar, and Panel Separation

DAYLIGHT THROUGH BROKEN GLASS

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343 CANAL STREET – STRUCTURAL DEFICIENCIES PVE ENGINEERING - LLC Probe Through East Window

DELAMINATED STEEL ANCHOR STEEL CLOSURE PLATE BLUESTONE LINTEL EXISTING STEEL SHUTTERS CMU BLOCK BLUESTONE LINTEL PLYWOOD WINDOW COVER LOUVER VENT

Close Up of Window Construction Close UP of Window Construction

EXISTING STEEL SHUTTERS RUBBLE INFILL BLUESTONE LINTEL STEEL CLOSURE PLATE

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343 CANAL STREET – STRUCTURAL DEFICIENCIES PVE ENGINEERING - LLC Signs of Water Intrusion at Domed Roof Connection to Main Structure

SIGNS OF WATER INTRUSION

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Cracks at East Wing Wall

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343 CANAL STREET – STRUCTURAL DEFICIENCIES PVE ENGINEERING - LLC Cracks at West Wing Wall

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11 Greene Street – Active Construction Site Observed from Roof of 343 Canal

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343 CANAL STREET – STRUCTURAL DEFICIENCIES PVE ENGINEERING - LLC

The adjacent construction has cut off access to the addition from the exterior.

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Interior of Rear Addition – Post-Mold Remediation

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343 CANAL STREET – STRUCTURAL DEFICIENCIES PVE ENGINEERING - LLC

Following mold remediation, there is evidence of more water infiltration at the base of the cast-iron structure. An effort was made to support the vault with new masonry at the openings.

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LEAK INVESTIGATION

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Water Infiltration at Deteriorated Cast-Iron Panels

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343 CANAL STREET – LEAK INVESTIGATION PVE ENGINEERING - LLC Pooling Water at Perimeter Prior to Water Test Deteriorated Sill

A water test was performed on Wednesday, May 23, 2018 by a third-party

  • engineer. Water was present due to rain from the previous night, and

cracks in brick and sills were noted. The gaps between panels were noted as well as deflected lintels and

  • supports. The water test confirmed that water was entering the space from

behind the metal ceiling structure. The third-party engineer’s conclusion included a recommendation to demolish the existing structure.

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VISUAL STUDY

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343 CANAL STREET – VISUAL STUDY PVE ENGINEERING - LLC AREA OF WORK NEW CONSTRUCTION - 11 GREENE STREET 343 CANAL STREET

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343 CANAL STREET – VISUAL STUDY PVE ENGINEERING - LLC NEW CONSTRUCTION - 11 GREENE STREET 343 CANAL STREET

*11 GREEN AVENUE DRAWINGS FROM GENE KAUFMAN ARCHITECT PC

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343 CANAL STREET – VISUAL STUDY PVE ENGINEERING - LLC AREA OF WORK NEW CONSTRUCTION - 11 GREENE STREET 343 CANAL STREET

*11 GREEN AVENUE DRAWINGS FROM GENE KAUFMAN ARCHITECT PC

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343 CANAL STREET – VISUAL STUDY PVE ENGINEERING - LLC NEW CONSTRUCTION - 11 GREENE STREET 343 CANAL STREET

*11 GREEN AVENUE DRAWINGS FROM GENE KAUFMAN ARCHITECT PC

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343 CANAL STREET – VISUAL STUDY PVE ENGINEERING - LLC AREA OF WORK NEW CONSTRUCTION - 11 GREENE STREET 343 CANAL STREET

*11 GREEN AVENUE DRAWINGS FROM GENE KAUFMAN ARCHITECT PC

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343 CANAL STREET – VISUAL STUDY PVE ENGINEERING - LLC

*11 GREEN AVENUE DRAWINGS FROM GENE KAUFMAN ARCHITECT PC *COLOR SHADING OVERLAYS FOR CLARITY

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PANEL FAILURE

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June 11, 2018 – Partial Collapse Observed at Vaulted Roof

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343 CANAL STREET – PANEL FAILURE PVE ENGINEERING - LLC

During a rainstorm on June 11th, 2018, the cast-iron vaulted roof partially collapsed, allowing water to flood the cavity.

OPENING IN ROOF DUE TO DIFFERENTIAL PANEL SEPARATION DOWNWARD MOVEMENT

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June 11, 2018 – Partial Collapse Observed at Vaulted Roof

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343 CANAL STREET – PANEL FAILURE PVE ENGINEERING - LLC

OPENING IN ROOF DUE TO DIFFERENTIAL PANEL SEPARATION

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June 26, 2018 – Temporary Bracing at Vaulted Roof

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343 CANAL STREET – PANEL FAILURE PVE ENGINEERING - LLC

Temporary 2x6 bracing was installed to prevent further collapse, but water can still enter through the failed panel joint.

FAILED PANEL JOINT

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DRAWINGS

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343 CANAL STREET – EXISTING SITE PLAN PVE ENGINEERING - LLC

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343 CANAL STREET – EXISTING ELEVATIONS PVE ENGINEERING - LLC

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343 CANAL STREET – PROPOSED REAR ADDITION PVE ENGINEERING - LLC

*11 GREEN AVENUE DRAWINGS FROM GENE KAUFMAN ARCHITECT PC

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343 CANAL STREET – PROPOSED REAR ADDITION PVE ENGINEERING - LLC

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343 CANAL STREET – PROPOSED REAR ADDITION WITHOUT WINDOWS PVE ENGINEERING - LLC

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PVE ENGINEERING - LLC 343 CANAL STREET – EXISTING AND PROPOSED FULL BUILDING SECTIONS EXISTING BUILDING SECTION PROPOSED BUILDING SECTION

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PVE ENGINEERING - LLC 343 CANAL STREET – EXISTING AND PROPOSED DETAIL BUILDING SECTIONS

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PVE ENGINEERING - LLC 343 CANAL STREET – PROPOSED FRAMING PLAN

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PVE ENGINEERING - LLC 343 CANAL STREET – STRUCTURAL DETAILS

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DOB VIOLATION

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343 CANAL STREET – JULY 7, 2018 DOB VIOLATION PVE ENGINEERING - LLC

35332910H Failure to maintain building in code-compliant manner. Noted: on 1st floor, at the rear of the building [it was] observed many cracks on the brick walls. [It was] also observed separations in below of walls, dome, and ceiling – the cracks [are] up to 2” wide. Repair and replace Summons Number: Violation Detail(s): Remedy: