Attachment_2_Old_City_Hall_Drawings.pdf

SECTION

SHEET NUMBER

DETAIL

SHEET NUMBER

X X

X X

1. OLD CITY HALL WILL REMAIN OPEN TO THE PUBLIC FOR THE DURATION OF THE CONTRACT. THE PUBLIC WILL ENTER AND EXIT THROUGH THE NORTH FIRST FLOOR DOOR. IF CLOSURE OF THE BUILDING ENTRY IS REQUIRED, THE CONTRACTOR SHALL NOTIFY CONTRACTING OFFICER 48 HOURS PRIOR TO ENTRY CLOSURE. NO BUILDING ENTRY SHALL BE CLOSED

WITHOUT PRIOR APPROVAL BY CONTRACTING OFFICER.

2. CONTRACTOR SHALL NOTIFY THE CONTRACTING OFFICER OF THE PROPOSED WORK SCHEDULE, I.E. TYPICAL WORKDAY, PRIOR TO MOBILIZATION ON SITE.

3. CONTRACTOR WILL BE PERMITTED TO WORK MONDAY THROUGH FRIDAY BETWEEN 7:30AM AND 5:00PM. WORK PERFORMED AT ANY OTHER TIME OR ON FEDERAL HOLIDAYS MAY BE DONE ONLY WITH PRIOR WRITTEN APPROVAL OF THE

CONTRACTING OFFICER.

3.1. NO WORK WILL BE PERMITTED THE WEEK OF JULY 4th.

4. SMOKING IS PROHIBITED WITHIN THE WORK AREA.

5. WELDING OR ANY OPEN FLAME IS PROHIBITED WITHIN BUILDING, IN TEMPORARY STORAGE SHEDS, OR IN THE WORK AREAS.

WORK AREAS INCLUDE THE AREA ENCLOSED BY THE JOB FENCE, LAY DOWN AREAS, AND ANY OTHER AREAS ON THE SITE

DESIGNATED FOR THE CONTRACTOR'S USE.

6. NO FOOD OR BEVERAGE OTHER THAN WATER IS PERMITTED IN THE WORK AREAS.

7. THE CONTRACTOR IS NOT PERMITTED TO USE THE INTERIOR OF OLD CITY HALL OR ANY OF THE ENTRANCES. THE INTERIOR

SPACES ARE NOT TO BE USED FOR MATERIAL STORAGE OR FABRICATION. THE CONTRACTOR IS NOT ALLOWED IN THE

BUILDING OTHER THAN FOR REQUIRED WORK.

8. CONSTRUCTION PERSONNEL ARE NOT PERMITTED OUTSIDE THE IDENTIFIED AREA OF CONTRACT WORK EXCEPT FOR SPECIFIC WORK ITEMS SUCH AS LOADING/UNLOADING, AND CIRCULATION TO PROJECT WORK AREA.

9. CONTRACTOR SHALL ARRANGE HIS SITE FENCING SO AS TO NOT BLOCK ACCESS TO THE GATE IN THE WOOD FENCE USED

FOR REMOVAL OF TRASH FROM INDEPENDENCE SQUARE.

10. IF OPTION # 1 IS ACCEPTED THE CONTRACTOR SHALL MAINTAIN THE MAXIMUM WIDTH CLEAR PASSAGE TO ALLOW FOR PARK VISITOR ACCESS TO THE SECURITY CHECKPOINT FOR INDEPENDENCE SQUARE BUT IN NO CASE LESS SHALL THE

CLEARANCE BE LESS THAN 48".

SECURITY

1. ALL CONTRACTOR STAFF THAT WILL REQUIRE ACCESS TO THE INDEPENDENCE SQUARE AND OLD CITY HALL WORK SITE

WILL NEED TO HAVE A SECURITY CHECK PERFORMED. CONTRACTOR WILL NEED TO PROVIDE THE FOLLOWING INFORMATION OF EACH STAFF MEMBER AND ALL SUB-CONTRACTORS: FULL NAME, SOCIAL SECURITY NUMBER, AND ADDRESS. THE CONTRACTING OFFICER RESERVES THE RIGHT TO DENY ACCESS TO ALL OR ANY INDIVIDUALS.

2. ALL CONTRACTOR STAFF AND SUB-CONTRACTORS WILL BE ISSUED A BADGE THAT WILL SERVE AS IDENTIFICATION FOR THE DURATION OF THE PROJECT. BADGES WILL BE ISSUED BY INDEPENDENCE NATIONAL HISTORICAL PARK, OFFICE OF RESOURCE AND VISITOR PROTECTION, 143 S. THIRD STREET, PHILADELPHIA, PA. CONTACT THE CONTRACTING OFFICER TO ACCOMPANY YOU TO THIS OFFICE TO OBTAIN ALL BADGES. NO STAFF MEMBER WITHOUT A BADGE WILL BE PERMITTED ACCESS OR WILL BE UNESCORTED IN INDEPENDENCE SQUARE AND CONGRESS HALL. ALL BADGES SHALL BE ACCOUNTED FOR AND RETURNED TO INDEPENDENCE NATIONAL HISTORICAL PARK WHEN AN INDIVIDUAL IS NO LONGER ASSIGNED TO

THE WORK OR AT THE CONCLUSION OF THE WORK .

3. N.P.S. PROTECTION STAFF SHALL HAVE ACCESS TO THE WORK SITE AND WILL CONDUCT PERIODIC SECURITY CHECKS.

VEHICULAR ACCESS TO THE SITE

1. VEHICULAR ACCESS TO INDEPENDENCE SQUARE IS STRICTLY CONTROLLED AND MONITORED. ALL VEHICLES AND

PERSONNEL WILL BE THOROUGHLY SEARCHED PRIOR TO ACCESS BEING PERMITTED. DELIVERIES ARE PERMITTED PRIOR TO 9 AM. DELIVERIES AT ANY OTHER TIMES REQUIRE 48 HOUR NOTICE TO THE CONTRACTING OFFICER. ACCESS IS VIA A RAMP OFF OF SIXTH STREET. IT IS IMPORTANT THAT THE HISTORIC SCENE IN THE PARK BE PRESERVED FOR THE ENJOYMENT OF THE PARK'S VISITORS. FOR THAT REASON, THERE IS NO ON SITE PARKING. FOR A POSSIBLE STREET PARKING PERMIT, WHICH ALLOWS FREE PARKING AT LEGAL METERED SPACES, CONTACT DEBORAH SUMMERS AT THE

PHILADELPHIA PARKING AUTHORITY (215) 683-9745.

2. UNLOADING AND LOADING OF MATERIAL, TOOLS, AND EQUIPMENT MUST BE ARRANGED BY PERMIT FROM THE INDEPENDENCE NATIONAL HISTORICAL PARK, OFFICE OF RESOURCE AND VISITOR PROTECTION, 143 S. THIRD STREET FOR EACH DELIVERY. CONTACT THE CONTRACTING OFFICER TO ACCOMPANY YOU TO THIS OFFICE TO OBTAIN PERMIT.

3. ALL VEHICLES ON INDEPENDENCE SQUARE MUST ADHERE TO THE FOLLOWING:

3.1. ALL VEHICLES ARE REQUIRED TO USE PNEUMATIC TIRES.

3.2. THE CONTRACTOR WILL BE HELD RESPONSIBLE FOR THE PROTECTION OF THE BLUESTONE PAVERS AND BRICK

SIDEWALKS, AND WILL BE HELD ACCOUNTABLE FOR ANY DAMAGE THAT OCCURS AS A DIRECT RESULT OF THE WORK.

ALL VEHICLES THAT EXCEED A GROSS WEIGHT OF 10,000 POUNDS MUST USE THE PROTECTION DESCRIBED BELOW.

USING THIS METHOD DOES NOT RELIEVE THE CONTRACTOR OF RESPONSIBILITY TO PROTECT THE WALKWAYS FROM

DAMAGE.

3.2.1. TWO LAYERS OF 3/4" PLYWOOD, WITH A LAYER OF 1/2" EXTRUDED POLYSTYRENE (EPS) PANELING IN BETWEEN, LAID IN SUCH A MANNER THAT THE SURFACE OF THE PAVED AREA IS COVERED TO ALL EXTENDS OF ITS

SURFACE.

3.2.2. WHEN THE EPS IS COMPRESSED TO A HEIGHT THAT IS LESS THAN HALF ITS ORIGINAL THICKNESS, OR TO AN EXTENT THAT THE EPS IS NOT PROTECTING THE PAVING, IT IS TO BE REPLACED AS DESCRIBED ABOVE.

PROTECTION

1. PROVIDE PROTECTION AROUND EACH BOLLARD WITHIN THE WORK AREA. THIS IS TO CONSIST OF PLYWOOD ENCLOSURES

TO PROTECT BOLLARDS FROM DAMAGE BY VEHICLES.

2. PROVIDE PROTECTION AT GRASS AREAS. NO PENETRATION OF GROUND PLANE IS ALLOWED AT AREAS WITH

ARCHAEOLOGICAL FEATURES.

3. PROTECT PAVING FROM CONSTRUCTION ACTIVITY. PROVIDE PLYWOOD AT AREAS WITHIN CONSTRUCTION FENCE. NO

DRILLING INTO PAVING IS ALLOWED FOR FENCE OF WORK OR STAGING AREAS.

SITE/ BUILDING ACCESS

SITE PLAN AND CONSTRUCTION LIMITS

SCALE: N.T.S.

G2

LEGEND

SECURED ZONE FOR ALL VISITORS

INDEPENDENCE HALL

EAST WING

OLD

CITY

HALL

OLD CITY HALL

ENTRANCE

WORK AREA

CONTRACTOR IS TO

DISASSEMBLE THE

TEMPORARY ACCESS

PROTECTION AT THE

DOUBLE DOORS TO OPEN

THE DOORS FOR HIS

ACCESS TO THE LIBRARY.

PROVIDE TEMPORARY DUST

BARRIER PROTECTION AT

DOORWAY AND RE-ERECT

THE TEMPORARY ACCESS

PROTECTION.

ACCESSIBLE DOOR

OUTLINE OF EXISTING

PROTECTIVE WALKWAY

ACCESSIBLE DOOR

ENLARGED CEILING SECTION

NOT TO SCALE

WOOD

FRAMING /

CEILING

JOIST

WOOD LATH;

SECURE AS

REQUIRED. TYP

GENERAL NOTES:

1. THE PRIMARY GOAL OF CONSERVATION WORK IS TO MITIGATE DETERIORATION AND STABILIZE THE

EXISTING PLASTER ASSEMBLY WITH MINIMAL LOSS OF HISTORIC PLASTER.

2. RETAIN AS MUCH EXISTING MATERIAL AS POSSIBLE; REPAIR AND CONSOLIDATE RATHER THAN REPLACE.

3. USE SPECIFIED MATERIAL TO REINFORCE, STRENGTHEN, PROP, TIE, AND SUPPORT EXISTING MATERIAL OR STRUCTURE. MATERIALS MUST BE AS SPECIFIED OR APPROVED BY THE COR PRIOR TO STABILIZATION

AND REPAIR WORK.

4. USE REVERSIBLE AND/OR RE-TREATABLE PROCESSES UNLESS APPROVED IN WRITING BY THE COR.

5. USE TRADITIONAL REPLACEMENT MATERIALS AND TECHNIQUES UNLESS APPROVED IN WRITING BY THE

COR.

PLAN OF WORK:

PREP:

1. DOCUMENT PRIOR TO ANY CUTTING, MODIFICATION, OR DISASSEMBLY OF THE CEILING OR ATTIC FRAMING.

RECORD THE EXISTING CONDITIONS AND ASSEMBLY TO NOTE THE APPEARANCE, DIMENSIONS,

PLACEMENT, AND CONFIGURATION OF MODULAR ELEMENTS.

2. REMOVE BATT INSULATION ABOVE WORK AREA IN ITS ENTIRETY. AFTER REPAIR WORK IS COMPLETE AND

NEW PLASTER HAS CURED INSTALL NEW BATT INSULATION AS SPECIFIED.

3. CLEAN PLASTER AS SPECIFIED, PLACE DEBRIS IN NEW BOXES WITH LIDS. MINIMUM OF ONE BOX PER JOIST

SPACE MARKED FOR LOCATION USING APPROVED LABELING SYSTEM.

4. AFTER REMOVAL AND BOXING OF LARGER DEBRIS, USING A HEPA VACUUM, CLEAN THE REVERSE SIDE OF

THE CEILING, INCLUDING PLASTER, LATH, AND FRAMING.

5. INSPECT CEILING REVERSE AND FRAMING TO VERIFY AREAS REQUIRING TREATMENT. REPORT FINDINGS IN WRITING TO THE COR, PROVIDE A DIAGRAM OF LOCATIONS AND INCLUDE ESTIMATES OF WORK I N

EXCESS OF BASIS OF BID QUANTITIES.

CEILING PLASTER STABILIZATION:

6. SECURE LOOSE WOOD LATH AS SHOWN.

7. CAREFULLY RAISE DISTORTED PLASTER USING TEMPORARY SUPPORTS THAT HOLD PLASTER IN ORIGINAL POSITION AGAINST WOOD LATH. REMOVE SUPPORTS AFTER PLASTER IS RE-ADHERED AND TREATMENTS

ARE CURED.

8. TEMPORARILY SECURE LOOSE HISTORIC PLASTER AS APPROVED IN MOCKUP. CONNECT DETACHED

AREAS TO UNDAMAGED AREAS USING ADHESIVE LENS TISSUE.

9. UNDERCUT THE EDGES OF SOUND PLASTER ADJACENT TO REPAIRS TO PROVIDE KEYS FOR THE NEW WORK. BRUSH AND VACUUM CLEAN DUST AND DEBRIS FROM THE REPAIR AREA. REBUILD BROKEN OR MISSING PLASTER KEYS. USE BULKED ADHESIVE GROUT OR PRE-MIXED ADHESIVE TO RE-ESTABLISH

MECHANICAL KEYS BETWEEN PLASTER AND LATH.

10. ADHERE LOOSE PLASTER USING LIME PLASTER REPAIR FORMULATION AS SPECIFIED. INJECT ADHESIVE IN WIDE CRACKS AND EDGE OF LOSSES PRIOR TO CARRYING OUT OTHER REPAIRS. FILL OTHER CRACKS

WIDER THAN 1

32 INCH WITH LIME PLASTER FORMULATION AS SPECIFIED. DAMPEN PLASTER WITHIN AND

ADJACENT BEFORE APPLICATION TO REDUCE SUCTION AND PREVENT PREMATURE DRYING. CLEAN

EXCESS ADHESIVE FROM PLASTER SURFACES BEFORE IT DRIES.

11. FINISH CEILING SURFACES LEVEL AND TRUE WITH THE SURFACE OF SURROUNDING PLASTER. AFTER

PLASTER HAS CURED PREP AND PAINT CEILING TO MATCH EXISTING COLOR.

12. INSTALL NEW R 34 INSULATION ABOVE WORK AREA.

13. REMOVE TEMPORARY SUPPORTS AND PROTECTION, ADDED ATTIC WALK BOARDS AND PLYWOOD WORK

AREAS AND PERFORM FINAL CLEANING.

PLASTER KEYS,

REPLACE MISSING

& REPAIR BROKEN,

TYP.

EXISTING

PLASTER

A1

A1

ATTIC PLAN

SCALE: 18" = 1'-0"

A1

REFLECTED CEILING PLAN 4

A1

TEMPORARY ACCESS

PROTECTION. INSTALL

DUST PROTECTION TO

ISOLATE THE NPS

STAFF ACCESS PATH

AND BOOKS FROM THE

WORK. ACCESS AND

DUST PROTECTION TO

BE REMOVED BY

CONTRACTOR AT THE

END OF WORK OR BY

DIRECTION OF COR.

REMOVE BATT

INSULATION ABOVE

WORK AREA, TYP.

REPLACE WITH NEW

INSULATION AT END

OF WORK.

CLEAN & INSPECT

REVERSE SIDE OF

CEILING AS SPECIFIED

TO CONFIRM AREAS

REQUIRING

TREATMENT. REPORT

FINDINGS TO THE COR.

SCALE: 18" = 1'-0"

CARRY OUT PLASTER

CONSERVATION

AND REPAIRS AS

SPECIFIED. SEE

BASIS OF BID FOR

QUANTITIES

REQUIRED.

PROTECT/SUPPORT

DECORATIVE

PLASTER AS

REQUIRED.

CARRY OUT PLASTER

CONSERVATION AND

REPAIRS AS

SPECIFIED. TYPICAL

FOR THE ENTIRE

CEILING AREA. SEE

BASIS OF BID FOR

QUANTITIES REQUIRED.

54"+/-

APPROXIMATE

AREA OF

GYPSUM

PLASTER TO

BE REMOVED.

AFTER PLASTER REPAIRS

AND CONSERVATION

ARE COMPLETE AND

NEW PLASTER FULLY

CURED, CLEAN AND

PREP ENTIRE

PLASTER CEILING

AND PAINT TO

MATCH THE EXISTING

CEILING COLOR.

SS SCREWS

LENGTH TO FIT

CONDITION

DRILL PLASTER AT

JOIST TO SET SCREWS,

FILL HOLES WITH

FINISH PLASTER.

AT LOOSE OR UNATTACHED PLASTER

LATH CAREFULLY PUSH PLASTER

AND LATH BACK INTO PLACE TO THE

EXTENT POSSIBLE AGAINST THE

CEILING JOIST TAKING CARE NOT TO

BREAK PLASTER. DRILL 38" HOLE

THROUGH PLASTER TO LATH THEN

DRILL PILOT HOLE THROUGH THE

LATH INTO THE JOIST. SET A

STAINLESS STEEL SCREW TO HOLD

LATH INTO PLACE AND FILL HOLE

WITH FINISH PLASTER.

PATH OF TRAVEL.

PROVIDE TEMPORARY

PROTECTION FOR

FLOOR, WALLS, DOORS,

AND FRAMES AS

SPECIFIED, REQUIRED,

OR DIRECTED.

SCALE: 18" = 1'-0"

PROVIDE WALK BOARDS

AND PLYWOOD WORK

SURFACES TO LAY ON

TOP OF THE CEILING

JOISTS AS NEEDED TO

PROVIDE ACCESS TO

WORK AREAS TO

CARRY OUT THE WORK.

PROVIDE

SUPPLEMENTAL

LIGHTING IF REQUIRED.

SEE DETAIL 1/A1 FOR

REATTACHMENT OF

PLASTER LATH

WHERE REQUIRED.

11'

10' 10'

25'-4" 46'-6"

8'-8" 22'-10"

5'-6" 3'-2"3'-2"

9'

4 1681