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 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 Canal Street Facade the deadline. 343 CANAL STREET - SITE INFORMATION 2 PVE ENGINEERING - LLC
STRUCTURAL DEFICIENCIES
Exterior of Rear Addition 343 CANAL STREET – AREA OF WORK 4 PVE ENGINEERING - LLC
DAYLIGHT DETERIORATED CAST-IRON ELEMENTS SEPARATING ROOF PANELS DELAMINATED CAST-IRON ELEMENTS RUPTURED STEEL RUPTURED STEEL RUPTURED STEEL DETERIORATED DETERIORATED MASONRY MASONRY THROUGH-WALL CRACK Interior of Rear Addition – Structural Deficiencies 343 CANAL STREET – STRUCTURAL DEFICIENCIES 5 PVE ENGINEERING - LLC
Ruptured Steel Delaminating Cast-Iron, Visible Tar, and Panel Separation DAYLIGHT THROUGH BROKEN GLASS Delaminating Cast-Iron 343 CANAL STREET – STRUCTURAL DEFICIENCIES 6 PVE ENGINEERING - LLC
STEEL CLOSURE PLATE BLUESTONE LINTEL BLUESTONE LINTEL PLYWOOD WINDOW COVER CMU BLOCK LOUVER VENT DELAMINATED STEEL ANCHOR EXISTING STEEL SHUTTERS Close Up of Window Construction Probe Through East Window RUBBLE INFILL STEEL CLOSURE PLATE BLUESTONE LINTEL EXISTING STEEL SHUTTERS Close UP of Window Construction 343 CANAL STREET – STRUCTURAL DEFICIENCIES 7 PVE ENGINEERING - LLC
SIGNS OF WATER INTRUSION Signs of Water Intrusion at Domed Roof Connection to Main Structure 343 CANAL STREET – STRUCTURAL DEFICIENCIES 8 PVE ENGINEERING - LLC
Cracks at East Wing Wall Cracks at West Wing Wall 343 CANAL STREET – STRUCTURAL DEFICIENCIES 9 PVE ENGINEERING - LLC
The adjacent construction has cut off access to the addition from the exterior. 11 Greene Street – Active Construction Site Observed from Roof of 343 Canal 343 CANAL STREET – STRUCTURAL DEFICIENCIES 10 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. Interior of Rear Addition – Post-Mold Remediation 343 CANAL STREET – STRUCTURAL DEFICIENCIES 11 PVE ENGINEERING - LLC
LEAK INVESTIGATION
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. Water Infiltration at Deteriorated Cast-Iron Panels 343 CANAL STREET – LEAK INVESTIGATION 13 PVE ENGINEERING - LLC
VISUAL STUDY
AREA OF WORK NEW CONSTRUCTION - 11 GREENE STREET 343 CANAL STREET 343 CANAL STREET – VISUAL STUDY 15 PVE ENGINEERING - LLC
*11 GREEN AVENUE DRAWINGS FROM GENE KAUFMAN ARCHITECT PC NEW CONSTRUCTION - 11 GREENE STREET 343 CANAL STREET 343 CANAL STREET – VISUAL STUDY 16 PVE ENGINEERING - LLC
*11 GREEN AVENUE DRAWINGS FROM GENE KAUFMAN ARCHITECT PC AREA OF WORK NEW CONSTRUCTION - 11 GREENE STREET 343 CANAL STREET 343 CANAL STREET – VISUAL STUDY 17 PVE ENGINEERING - LLC
*11 GREEN AVENUE DRAWINGS FROM GENE KAUFMAN ARCHITECT PC NEW CONSTRUCTION - 11 GREENE STREET 343 CANAL STREET 343 CANAL STREET – VISUAL STUDY 18 PVE ENGINEERING - LLC
*11 GREEN AVENUE DRAWINGS FROM GENE KAUFMAN ARCHITECT PC AREA OF WORK NEW CONSTRUCTION - 11 GREENE STREET 343 CANAL STREET 343 CANAL STREET – VISUAL STUDY 19 PVE ENGINEERING - LLC
*11 GREEN AVENUE DRAWINGS FROM GENE KAUFMAN ARCHITECT PC *COLOR SHADING OVERLAYS FOR CLARITY 343 CANAL STREET – VISUAL STUDY 20 PVE ENGINEERING - LLC
PANEL FAILURE
OPENING IN ROOF DUE TO DIFFERENTIAL PANEL SEPARATION DOWNWARD MOVEMENT During a rainstorm on June 11 th , 2018, the cast-iron vaulted roof partially collapsed, allowing water to flood the cavity. June 11, 2018 – Partial Collapse Observed at Vaulted Roof 343 CANAL STREET – PANEL FAILURE 22 PVE ENGINEERING - LLC
OPENING IN ROOF DUE TO DIFFERENTIAL PANEL SEPARATION June 11, 2018 – Partial Collapse Observed at Vaulted Roof 343 CANAL STREET – PANEL FAILURE 23 PVE ENGINEERING - LLC
FAILED PANEL JOINT Temporary 2x6 bracing was installed to prevent further collapse, but water can still enter through the failed panel joint. June 26, 2018 – Temporary Bracing at Vaulted Roof 343 CANAL STREET – PANEL FAILURE 24 PVE ENGINEERING - LLC
DRAWINGS
343 CANAL STREET – EXISTING SITE PLAN 26 PVE ENGINEERING - LLC
343 CANAL STREET – EXISTING ELEVATIONS 27 PVE ENGINEERING - LLC
*11 GREEN AVENUE DRAWINGS FROM GENE KAUFMAN ARCHITECT PC 343 CANAL STREET – PROPOSED REAR ADDITION 28 PVE ENGINEERING - LLC
343 CANAL STREET – PROPOSED REAR ADDITION 29 PVE ENGINEERING - LLC
343 CANAL STREET – PROPOSED REAR ADDITION WITHOUT WINDOWS 30 PVE ENGINEERING - LLC
PROPOSED BUILDING SECTION EXISTING BUILDING SECTION 343 CANAL STREET – EXISTING AND PROPOSED FULL BUILDING SECTIONS 31 PVE ENGINEERING - LLC
343 CANAL STREET – EXISTING AND PROPOSED DETAIL BUILDING SECTIONS 32 PVE ENGINEERING - LLC
343 CANAL STREET – PROPOSED FRAMING PLAN 33 PVE ENGINEERING - LLC
343 CANAL STREET – STRUCTURAL DETAILS 34 PVE ENGINEERING - LLC
DOB VIOLATION
Summons Number: 35332910H Violation Detail(s): Failure to maintain building in code-compliant manner. Noted: on 1 st 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. Remedy: Repair and replace 343 CANAL STREET – JULY 7, 2018 DOB VIOLATION 36 PVE ENGINEERING - LLC
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