BONE / LEVINE ARCHITECTSGraphic Source: MapPLUTO, Edition 14v1, 2014, Author: Landmarks Preservation Commission, DHW, Date: June 23, 2015 B ou nda rie sf Ex tg D c B ounda ry f h ist

DATE

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PROJECT NAME

TEL: 2 1 2 - 2 1 9 -1 0 3 8 FAX: 2 1 2 - 2 2 6 - 8 0 5 6561 BROADWAY, No. 8D NEW YORK, NY 10012

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NYC DOB PLAN ID NUMBER:

© C O P Y R I G H T B O N E / L E V I N E A R C H I T E C T S 2 0 1 5

11-17-15

DVD

949 WEST END AVENUEEXTERIOR REPAIRS

LPC SUBMISSION 08-28-15LPC AMMENDMENT 10-01-15

LPC 17-5765

LPC AMMENDMENT 10-28-15

1 OF 15

BUILDING LOCATION

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dway

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W 98 St

W 101 St

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side

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Henry Hudson Py

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Riverside-West End Historic District Extension II

Historic District ExtensionExisting Historic Districts

Tax map lots in historicdistrict extension

Graphic Source: MapPLUTO, Edition 14v1, 2014, Author: Landmarks Preservation Commission, DHW, Date: June 23, 2015

Boundaries of Existing Districts

Boundary of historic district extension

Riverside-West End Historic District Extension II

Borough of ManhattanLandmarks Preservation Commission

Calendared: 11.16.2010Public Hearing: 10.25.2011

Designated 6.23.2015

Riverside-West End 105th StreetHistoric District Manhattan Avenue

Historic District

Riverside-West End Historic District

75'

100'

PLOT PLANN. T. S.

ADDRESS: 949 WEST END AVENUE, NEW YORK, NY 10025BLOCK: 1892LOT: 16ZONING: R8MAP: 5D

N

BROADWAY

WES

T EN

D A

VE

DESIGNATED LANDMARK DISTRICT

949 WEST END AVENUE 1940'S TAX PHOTO

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11-17-15

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LPC 17-5765


2 OF 15

BUILDING PHOTOGRAPHS949 WEST END AVENUE 1940'S TAX PHOTO 949 WEST END AVENUE 2015 PHOTO 949 WEST END AVENUE CURRENT CONDITIONS

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LPC 17-5765


3 OF 15

SCOPE OF WORK

ADJACENT BUILDING

ADJACENT BUILDING

PROPOSEDAREA OFWORK

N

PROPOSEDAREA OFWORK

SCOPE OF WORK:

1. REMOVE DAMAGED TERRA COTTA CORNICE ANDPROVIDE NEW FIBERGLASS CORNICE TO MATCHEXISTING.

2. REMOVE EXISTING PARAPET, STEEL ARMATURE ANDSUBSTRUCTURE. PROVIDE NEW REINFORCEDMASONRY PARAPET.

3. REMOVE AND REPLACE 1'-0" STRIP OF ROOFMEMBRANE AT BASE OF PARAPET.

WEST END AVENUE ELEVATION

ROOF PLAN

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11-17-15

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LPC 17-5765


4 OF 15

EXISTING AND PROPOSEDSECTION COMPARISON

10'-5

"

1'-1

0"5'

-3"

3'-3

"

3'-4"

EXISTING TERRA-COTTA BANDCOURSE AND WATER TABLE TOREMAIN. IN GOOD CONDITION.

EXISTING FACE-BRICK TO REMAIN.

EXISTING DAMAGED STEELARMATURE TO BEREMOVED

EXISTING BRICK PARAPETTO BE REMOVED

EXISTING MEMBRANEROOFING AND PLYWOODSUBSTRATE TO BEREMOVED

BULGE AT BACK OFPARAPET WALL AT ALLLOCATIONS

CORRODED STEELCHANNEL

CORRODED STEEL ANGLEWITH SPALLING ON FRONTAND BACK OF PARAPETWALL

EXISTING CONCRETEBALLAST TO BE REMOVED

FROM BRICK FACADE TO OUTEREDGE OF CORNICE

1'-1

0"5'

-3"

3'-3

"

10'-5

"

3'-4"

EXISTING TERRA-COTTA BANDCOURSE AND WATER TABLE TOREMAIN. IN GOOD CONDITION.

EXISTING FACE-BRICK TO REMAIN.

PROVIDE CONT. CLOSEDCELL POLYETHYLENEFOAM BACKER ROD ANDSEALANT WITH WEEPHOLES AT 16" O.C.

PROVIDE ADDITIONALSTEEL SUPPORT ASNEEDED FOR 3 WYTHEPARAPET WALL. EXISTINGSUPPORT STRUCTURE TOBE CONFIRMED.

REMOVE AND REPLACE1'-0" STRIP OF ROOFING ATBASE OF NEW PARAPET.

EXISTING ROOF ASSEMBLYTO REMAIN.

REMOVE, STORE ANDPROTECT EXISTINGPAVERS FOR RE-INSTALLATION.

PROVIDE NEW BASEFLASHING ASSEMBLYINCLUDING TWO PIECECOUNTERFLASHING WITHCONT. CLEAT.

FABRICATE AND INSTALLSTEEL ARMATURE FORNEW CORNICE ASSEMBLY.

PROVIDE NEWREINFORCED BRICKPARAPET WALL TOSUPPORT FIBERGLASSCORNICE AND STEELCOMPONENTS.

EXST. MASONRY CLADDINGON STEEL COLUMNS TOREMAIN

MEMBRANE ROOFING WITHPLYWOOD SUBSTRATE.

PROVIDE LEAD COATEDCOPPER FLASHINGASSEMBLY AT EDGE OFFIBERGLASS CORNICE.

*REMOVE EXISTING TERRA COTTA CORNICE AND ARMATURE. FABRICATEAND INSTALL FIBERGLASS CORNICE ASSEMBLY. REPLICATE ALL DETAILSINCLUDING BRACKETS, SCROLLS, MEDALIONS, FINIALS, AND BANDCOURSES. REPLICATE JOINT PATTERN TO MATCH EXISTING. CONTRACTORTO PROVIDE SIGNED AND SEALED CALCULATIONS AND SHOP DRAWINGSFOR S.S. SUPPORT STRUCTURE ASSEMBLIES, AND BASE CALCULATIONSON PULL OUT TEST RESULTS FOR ALL ADHESIVE ANCHORS.

EXST. STEEL BRACING TOREMAINPROVIDE DIAGONAL STEELBRACING WITHINFIBERGLASS BRACKETS

PROVIDE THROUGH-WALLFLASHING MEMBRANE

EXST. STEEL COLUMN TOREMAIN

FIBERGLASSBRACKETS

FROM BRICK FACADE TO OUTEREDGE OF CORNICE

EXISTING SECTION SHOWING TERRACOTTA PROFILES

PROPOSED SECTION SHOWINGFIBERGLASS PROFILES TO MATCH

EXISTING

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LPC 17-5765


5 OF 15

EXISTING AND PROPOSEDSUPPORT STRUCTURES

3" DOUBLE LSECTION

DIAGONALBRACING

3" STEEL DOUBLEL SECTION

1.5" ROUND PIPE

1.5" ROUND PIPE

1.5" ROUND PIPE

CONFIRM ENDCONDITION OFCOLUMNS12" CHANNEL

3" STEEL LSECTION INPARAPET WALL

1/2" ROD

1/2" ROD

STEEL COLUMN

3" ANGLE

EXISTINGPARAPET WALLTO BE REMOVED

EXISTING BRICKTO BE REMOVED

EXISTINGDIAGONAL BRACINGAT COLUMNS TOREMAIN (APPROX.16' O.C.)

NEW STEELCHANNELS

PROVIDE DIAGONALSTEEL BRACINGWITHIN FIBERGLASSBRACKETS(APPROX. 3'-2" O.C.)

NEW STEELARMATURE. TO BECONFIRMED WITHENGINEER

PROVIDE ADDITIONALSTEEL SUPPORT ASNEEDED FOR3-WYTHE PARAPETWALL

EXISTING STEELCOLUMN TO REMAIN(APPROX. 16' O.C.)

NEW REINFORCEDBRICK PARAPETWALL

EXISTING STEEL STRUCTURE ANDBRICK PARAPET WALL

PROPOSED STEEL STRUCTURE ANDBRICK PARAPET WALL

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11-17-15

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LPC 17-5765


6 OF 15

OVERALL ELEVATION ANDPROBE PHOTOGRAPHS

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10-28-15

DVD



LPC 17-5765


9'-4

"

75'-0"PROBE 1PROBE 1PROBE 3 PROBE 2 PROBE LOCATION

DAMAGED TERRA COTTA

SYMBOL KEY

DOCUMENTATION OFEXISTING CORNICE

CONDITIONS

A-004.01

4 OF 4

AS INDICATED

CORNICE ELEVATION OVERALLSCALE: 3/8"=1'-0"

1

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

CRACKED ELEMENT

C-CHANNEL CORRESPONDS WITHLOCATION OF REGULAR CRACKING

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10-28-15

DVD



LPC 17-5765


9'-4

"

75'-0"PROBE 1PROBE 1PROBE 3 PROBE 2 PROBE LOCATION

DAMAGED TERRA COTTA

SYMBOL KEY

DOCUMENTATION OFEXISTING CORNICE

CONDITIONS

A-004.01

4 OF 4

AS INDICATED

CORNICE ELEVATION OVERALLSCALE: 3/8"=1'-0"

1

1

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

CRACKED ELEMENT

C-CHANNEL CORRESPONDS WITHLOCATION OF REGULAR CRACKING

CORNICE ELEVATION SHOWING PROBE LOCATIONS, DAMAGED TERRA COTTA ELEMENTS AND VISIBLE CRACKS

VIEW OF PROBE AT LOWER PORTION OF CORNICE SHOWING TERRA COTTA BRACKETS AND STEEL STRUCTURE

VIEW OF PROBE AT TOP OF CORNICE SHOWING STEEL STRUCTURE AND CONCRETE BALLAST

OVERVIEW OF CORNICE SHOWING UPPER BRACKETS, BAND COURSE AND ANTEFIXAE

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LPC 17-5765


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TYPICAL DAMAGELOCATIONS

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LPC 17-5765


15 OF 15

PROPOSED ELEVATION

PROPOSED CORNICE ELEVATION

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PROJECT NAME


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11-17-15

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LPC 17-5765


5 OF 15



NEW STEELCHANNELS








(A) CORROSION OF EMBEDDED STEELDETAIL OF CRACKED TERRA COTTAOVERVIEW OF DAMAGED TERRA COTTA AT UPPER CORNICE

DETAIL OF PROBE SHOWING ALIGNMENT OF CORRODED STEEL AND CRACKED TERRA COTTA

CRACKS ALIGN WITH LOCATION

OF STEEL

A

DETAIL OF EXPANDED JOINTS

(A) DETAIL OF CORRODED STEEL STRUCTURE

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11-17-15

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LPC 17-5765


8 OF 15


VIEW OF TERRA COTTA BRACKETS SHOWING PATCHING FROM FORMER REPAIR

DETAIL OF CRACKED TERRA COTTA

(B) DETAIL OF CORRODED STEEL STRUCTURE

DATE

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PROJECT NAME


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LPC 17-5765


15 OF 15

PROPOSED ELEVATION


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11-17-15

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LPC 17-5765


5 OF 15



NEW STEELCHANNELS








B

A

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11-17-15

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LPC 17-5765


9 OF 15


TYPICAL CRACKING NEAR LOCATION OF STEEL STRUCTURE

(A) PROBE VIEW OF STEEL CHANNEL ALIGNING WITH TYPICAL CRACKS

DETAIL OF CRACK SHOWING RE-OPENING AFTER PREVIOUS REPAIR

NEW CRACKING AFTER PREVIOUS

REPAIR

VIEW OF TERRA COTTA SHOWING TYPICAL CRACK LOCATION BENEATH SOFFIT

VIEW OF CRACKING AT SOFFIT

DATE

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PROJECT NAME


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LPC 17-5765


15 OF 15

PROPOSED ELEVATION


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LPC 17-5765


5 OF 15



NEW STEELCHANNELS








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LPC 17-5765


10 OF 15

LOCATION OF EXISTINGTERRA COTTA TO REMAIN

(A) DETAIL OF TERRA COTTA TO REMAIN. IN GOOD CONDITION, WITH REPOINTING

PARTIAL VIEW OF CORNICE SHOWING PORTION OF TERRA COTTA TO REMAIN

EXISTING TO REMAIN

TO BE REPLACED

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LPC 17-5765


15 OF 15

PROPOSED ELEVATION


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LPC 17-5765


5 OF 15



NEW STEELCHANNELS








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11-17-15

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LPC 17-5765


11 OF 15

PHOTOS OF TERRA COTTAANTEFIXA

PARTIAL VIEW OF CORNICE SHOWING ANTEFIXA DETAIL OF WEATHERED TERRA COTTA DETAIL OF CRACKED TERRA COTTA

DATE

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LPC 17-5765


15 OF 15

PROPOSED ELEVATION


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LPC 17-5765


5 OF 15



NEW STEELCHANNELS








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LPC 17-5765


5 OF 15



NEW STEELCHANNELS








VIEW OF PROBE SHOWING EXISTING SUPPORT STRUCTURE FOR ANTEFIXA

CONCRETE BALLAST

BACKUP BRICK

DATE

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PROJECT NAME


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LPC 17-5765


12 OF 15

PHOTOS OF INBOARD SIDEOF PARAPET WALL

DETAIL OF PARAPET WALL SHOWING LOCATION OF BULGEVIEW OF PARAPET WALL AT INBOARD SIDE OF CORNICE

DETAIL OF PARAPET WALL SHOWING LOCATION OF BULGE

DATE

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LPC 17-5765


15 OF 15

PROPOSED ELEVATION


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LPC 17-5765


5 OF 15



NEW STEELCHANNELS








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LPC 17-5765


13 OF 15

FIBERGLASS REPLACEMENTSAMPLES

FIBERGLASS REPLACEMENT SAMPLE (LEFT) AND ORIGINAL TERRA COTTA (RIGHT)

FIBERGLASS REPLACEMENT SAMPLE AND ORIGINAL TERRA COTTA (ON SITE)

FIBERGLASS REPLACEMENT SAMPLE AND ORIGINAL TERRA COTTA (ON SITE)

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LPC 17-5765


14 OF 15

DIAGRAM OF EXISTINGJOINTS AND PROPOSED

JOINT PATTERN

3'-3"

4'-1

0"5"

3'-3

"

PROPOSED JOINT PATTERN INFIBERGLASS TO MATCH EXISTING

TERRA COTTA JOINTS

EXISTING TERRA COTTAJOINTS, TO BEREPLICATED INFIBERGLASS PANELS

ACTUAL JOINTS OFFIBERGLASS PANELASSEMBLY TOCORRESPOND TOEXISTING JOINTS

EXISTING JOINTS INEXISTING TERRA COTTATO REMAIN

KEY

*TO BE CONFIRMED BYFABRICATOR

EXISTING JOINT PATTERN IN TERRACOTTA CORNICE

DATE

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11-17-15

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LPC 17-5765


15 OF 15

PROPOSED ELEVATION


Documents

BONE / LEVINE ARCHITECTSGraphic Source: MapPLUTO, Edition 14v1, 2014, Author: Landmarks Preservation Commission, DHW, Date: June 23, 2015 B ou nda rie sf Ex tg D c B ounda ry f h ist