Attachment 4 - Drawings Grey Towers.pdf

PROJECT LOCATION

VICINITY MAP

SHEET OF

United States Department of Agriculture Forest Service

INDEX OF SHEETS

SHEET SHEET TITLE DATE

G1.01 COVER SHEET 4/7/2025

G1.02 VICINITY MAP & SCHEDULE OF ITEMS 4/7/2025

L1.01 SITE PLAN OVERVIEW 4/7/2025

L1.02 STAR & DIAMOND TERRACE

DEMOLITION PLAN 4/7/2025

L1.03 STAR & DIAMOND TERRACE

RESTORATION 4/7/2025

L1.04 MARBLE COURT DEMOLITION PLAN 4/7/2025

L1.05 MARBLE COURT RESTORATION 4/7/2025

L2.01 STAR & DIAMOND TERRACE

RESTORATION DETAILS 4/7/2025

L2.02 MARBLE COURT RESTORATION

DETAIL & WATERPROOFING DETAIL 4/7/2025

L2.03 STEP RESTORATION SITE PLAN AND

DETAILS 4/7/2025

L2.04

EXISTING CONDITIONS (STEP

RESTORATION) 4/7/2025

RECOMMENDED BY:

APPROVED:

DATE

5/1 9/2

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GREY TOWERS HISTORIC TERRACES AND

WALKWAY PRESERVATION

PENNSYLVANIA

PIKE COUNTY

GREY TOWERS NATIONAL HISTORIC SITE

SHEET G1.01

TRAVEL DIRECTIONS:

FROM MILFORD, PA TOWN CENTER, HEAD WEST ON EAST HARFORD

STREET FOR 0.5 MILES. AT "Y"-INTERSECTION WITH U.S. HIGHWAY

6, TURN LEFT ONTO WEST HARFORD STREET. CONTINUE ON WEST

HARFORD STREET FOR 500 FEET AND ROAD NAME WILL BECOME

OLD OWEGO TURNPIKE. CONTINUE ON OLD OSWEGO TURNPIKE

FOR 0.2 MILES. TURN LEFT ONTO GREY TOWERS DRIVE AND

PROCEED FOR 0.4 MILES UNTIL REACHING THE PROJECT

LOCATION. ADDRESS: 151 GREY TOWERS DRIVE; MILFORD, PA

18337. LATITUDE: 41°19'41.37"N; LONGITUDE: 74°49'8.61"W.

GREY TOWERS DIRECTOR

REGIONAL ENGINEER

GREY TOWERS FACILITY OPERATIONS

SPECIALIST

DATE

DATE

ESTIMATE OF QUANTITIES (BASE CONSTRUCTION)

PAY ITEM WORK DESCRIPTION PAY UNIT UNIT OF MEAS QUANTITIES

040322-1 REMOVE, SALVAGE AND RE-SET STONE PAVERS, MARBLE

COURT, INCLUDING SUBGRADE STABILIZATION LUMP SUM LSQ ALL

040322-2 REMOVE, SALVAGE AND RE-SET STONE PAVERS, STAR &

DIAMOND TERRACE, INCLUDING SUBGRADE STABILIZATION LUMP SUM LSQ ALL

040322-3 RESTORE AND REHABILITATE WATER FEATURE "FINGER

BOWL" LUMP SUM LSQ ALL

PROJECT LOCATION

VICINITY MAP

NO SCALE

N

MILFORD

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

5/1 9/2

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GREY TOWERS NHS

GREY TOWERS

HISTORIC TERRACES

AND WALKWAY

PRESERVATION

GREY TOWERS

NATIONAL HISTORIC SITE

MILFORD, PENNSYLVANIA

VICINITY MAP &

SCHEDULE OF ITEMS

4/7/2025

M. WEWERKA

M. ALANIZ

D. KIMBALL

G1.02 2 11

ESTIMATE OF QUANTITIES (OPTION WORK ITEMS)

PAY ITEM WORK DESCRIPTION PAY UNIT UNIT OF MEAS QUANTITIES

040322-4 REMOVE, SALVAGE AND RE-SET STONE PAVER STEPS AT

"FINGER BOWL", INCLUDING SUBGRADE STABILIZATION LUMP SUM LSQ ALL

040322-5 REMOVE, SALVAGE AND RE-SET STONE PAVER STEPS AT

MOAT AREA, INCLUDING SUBGRADE STABILIZATION LUMP SUM LSQ ALL

040322-6 REPAIR STONE BENCHES AT MOAT AREA LUMP SUM LSQ ALL

NOTE: REFER TO SPECIFICATIONS FOR DETAILS REGARDING INCIDENTAL CONSTRUCTION

(INCLUDING MOBILIZATION).

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PAY ITEM 040322-6: RESET BENCHES (2 TOTAL).

ATTACH BROKEN SEAT ON TO EXISTING

PILLARS USING GROUT. REFER TO

SPECIFICATIONS FOR DETAILS. BROKEN SEAT

IS LOCATED ON THE GROUND, ADJACENT TO

THE BENCH PILLARS.

GREY TOWERS

(MANSION)

PROPOSED LOCATION FOR

STOCKPILING EARTH MATERIALS

AND STONE PAVERS

PROPOSED LOCATION FOR

STOCKPILING EARTH MATERIALS

AND STONE PAVERS. USE GROUND

PROTECTION MATTING TO

MINIMIZE COMPACTION.

PAY ITEM 040322-5: RESET BLUESTONE STAIR

TREADS (5 TOTAL). EQUALIZE RISER HEIGHTS, PLUS

OR MINUS 1/4-INCH. RE-USE EXISTING BLUESTONE

UNLESS OTHERWISE APPROVED BY THE

CONTRACTING OFFICER. REPLACE WHITE TREAD

STONES WITH MATCHING BLUESTONE USING LOCAL

OR COMMERCIALLY AVAILABLE STONE.

PAY ITEM 040322-3: RESTORE AND REHABILITATE

WATER FEATURE (FINGER BOWL). MEDIA-BLASTING

INSIDE OF BOWL, APPLYING NEW THIN COAT OF

MORTAR OVER SURFACE (SKIM COAT), RE-POINT

EXTERIOR SRUFACE AND RE-PAINT INTERIOR OF

THE BOWL. PAINT BOWL WITH PAINT IN

ACCORDANCE WITH THE SPECIFICATIONS.

PAY ITEM 040322-4: RE-SET BLUESTONE TREADS (5

TOTAL) BELOW THE EXISTING LANDING. EQUALIZE,

PLUS OR MINUS 1/4-INCH, THE RISE BETWEEN THE

FIVE (5) STEPS. RE-USE EXISTING BLUESTONE

UNLESS OTHERWISE APPROVED BY THE

CONTRACTING OFFICER.

PAY ITEM 040322-2: RE-SET STONE PAVERS

AT "STAR AND DIAMOND" TERRACE. WORK

ALSO INCLUDES SUBGRADE STABILIZATION

AND WATER- PROOFING BASEMENT WALL.

PAY ITEM 040322-2: RE-SET STONE PAVERS

AT MARBLE COURTYARD. WORK ALSO

INCLUDES SUBGRADE STABILIZATION,

RESTORING MOON-SHAPED WATER

FEATURE AND WATER- PROOFING

BASEMENT WALL.

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

5/2 1/2

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GREY TOWERS NHS

GREY TOWERS

HISTORIC TERRACES

AND WALKWAY

PRESERVATION

GREY TOWERS

NATIONAL HISTORIC SITE

MILFORD, PENNSYLVANIA

SITE PLAN OVERVIEW

4/7/2025

M. WEWERKA

M. ALANIZ

D. KIMBALL

L1.01 3 11

L2.02

L2.01L1.03

L1.05

L2.04L2.03

0 5 10 25 50 100

SCALE IN FEET

REPLACE DRAIN VALVE FOR FINGER BOWL

(INCIDENTAL TO PAY ITEM 040322-3).

CONTRACTOR SHALL SIZE AND PROCURE

NEW VALVE (CHANGE TO BRASS VALVE).

L2.04L2.03

PROPOSED LOCATION FOR

STOCKPILING EARTH MATERIALS

AND STONE PAVERS. USE

GROUND PROTECTION MATTING

TO MINIMIZE COMPACTION.

L1.02

L1.04

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DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

5/2 1/2

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GREY TOWERS NHS

GREY TOWERS

HISTORIC TERRACES

AND WALKWAY

PRESERVATION

GREY TOWERS

NATIONAL HISTORIC SITE

MILFORD, PENNSYLVANIA

STAR & DIAMOND

TERRACE DEMOLITION

PLAN

4/7/2025

M. WEWERKA

M. ALANIZ

D. KIMBALL

L1.02 4 11

STAR & DIAMOND TERRACE

REMOVE BLUESTONE (COMPRISING THE "STAR" AND "DIAMOND" SHAPES).

CATALOG LOCATION OF INDIVIDUAL STONE PIECES, INCLUDING JOINT

THICKNESS AND ORIENTATION (PLACEMENT) OF EACH STONE.

REMOVE IRREGULARLY-CUT GRANITE PAVER STONE. CATALOG LOCATION OF

INDIVIDUAL STONE PIECES, INCLUDING JOINT THICKNESS AND ORIENTATION

(PLACEMENT) OF EACH STONE.

MILLSTONE AND PLATFORM. LEAVE IN-PLACE AND PROTECT FROM DAMAGE

DURING CONSTRUCTION.

LEGEND:

DEMOLITION NOTES FOR STAR AND DIAMOND TERRACE:

1. REMOVE EACH STONE DESIGNATED FOR RE-USE AND NUMBER OR

TAG EACH STONE IN A MANNER THAT DOES NOT DAMAGE OR LEAVE

PERMANENT MARKING ON THE STONE.

2. REFER TO SECTION 024119 "DISMANTLING" FOR DETAILS ON

CATALOGING & SURVEYING EXISTING STONE WORK AND STONE

REMOVAL.

3. THE EXISTING GROUTED JOINTS ARE SEVERELY DEGRADED AND

EXPECTED OUTCOME IS FOR THE STONES TO COME OFF

INDIVIDUALLY BY USE OF COLD-CHISEL AND HAMMER (OR

APPROVED EQUALS). DO NOT USE MECHANICAL TECHNIQUES TO

REMOVE THE STONES DESIGNATED FOR RE-USE.

4. FIRST RING OF STONE AROUND THE BASE OF THE MILLSTONE SHALL

BE REMOVED. THE REMAINDER OF THE MILLSTONE SHALL BE LEFT

IN-PLACE AND PROTECTED DURING THE COURSE OF WORK. REFER

TO SPECIFICATIONS FOR PROTECTION REQUIREMENTS.

5. EXISTING PLANTER STONE EDGING SHALL BE REMOVED AND

CATALOGED FOR FUTURE RE-USE. GREY TOWERS PERSONNEL WILL

REMOVE AND STORE BENCHES PRIOR TO THE START OF

CONSTRUCTION.

6. ALL STONE DESIGNATED FOR REMOVAL AND RE-USE SHALL BE

STORED IN A SAFE MANNER THAT DOES NOT DAMAGE EACH

INDIVIDUAL PIECE OF STONE.

7. REMOVE APPROXIMATELY 5 FEET OF BRICK PAVERS, STARTING

WHERE AT THE EDGE OF THE STAR & DIAMOND. RE-SET BRICK

PAVERS AS NOTED IN SHEET L1.03.

8. KNOWN UTILITIES ARE SHOWN ON THE DRAWINGS. ADDITIONAL

UTILITIES MAY EXISTING ALONG THE BRICK PAVERS.

EXISTING PATHWAY

(BRICK PAVERS).

SEE NOTE 7 BELOW.

EXISTING PATHWAY

(BRICK PAVERS). SEE

NOTE 7 BELOW..

"EAST TERRACE".

CONTOURS NATURALLY

FLOW AWAY FROM THE

TERRACE

GREY TOWERS

MANSION REMOVE QUARTZSITE AND BLUESTONE (FRONT EDGE PIECES). CATALOG

LOCATION OF INDIVIDUAL STONE PIECES, INCLUDING JOINT THICKNESS AND

ORIENTATION.

PLANTER BOX. MEASURE INDIVIDUAL PLANTER BOXES FOR FABRICATION OF

NEW METAL BOXES. PLANTER BOXES SHALL BE 3-SIDED (OPEN SIDE FACING

WALL) WITH NO BOTTOM.

BLUESTONE SLAB IN FRONT OF DOOR (ADJACENT TO PLANTER BOXES).

REMOVE AND CATALOG LOCATION FOR RE-INSTALLATION.

DOOR DOOR DOOR DOOR DOOR DOOR DOOR

(D)

(D)

(P)

(P) (P) (P) (P)

(D) (D)(D)(D)(D)(D) (P)(P)

(P)(P)

DOOR

(D)

EXISTING ELECTRICAL

UTLITY BOX. DO NOT

DISTURB.

EXISTING ROOF GUTTER

DRAIN. DO NOT DISTURB.

EXISTING ROOF GUTTER

DRAIN. DO NOT DISTURB.

EXISTING SUBSURFACE DRAIN

(APPROX. ALIGNMENT). DO

NOT DISTURB.

EXISTING SUBSURFACE DRAIN

(APPROX. ALIGNMENT). DO

NOT DISTURB.

EXISTING SHRUB.

PROTECT DURING

COURSE OF WORK.

EXISTING SHRUB.

PROTECT DURING

COURSE OF WORK.

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SCALE IN FEET

5'

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

5/2 1/2

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GREY TOWERS NHS

GREY TOWERS

HISTORIC TERRACES

AND WALKWAY

PRESERVATION

GREY TOWERS

NATIONAL HISTORIC SITE

MILFORD, PENNSYLVANIA

STAR & DIAMOND

TERRACE RESTORATION

4/7/2025

M. WEWERKA

M. ALANIZ

D. KIMBALL

L1.03 5 11

BLUESTONE SLAB IN FRONT OF EACH

DOOR (TYP.). RE-INSTALL TO CREATE

LEVEL TRANSITION ONTO TERRACE

FREE OF TRIPPING HAZARDS (TYP.)

RESTORATION NOTES:

1. REFER TO DEMOLITION PLAN SHEETS AND SPECIFICATIONS FOR ACCEPTABLE REMOVAL OF THE

STONE PIECES.

2. USE STONE DUST TO FILL ALL JOINTS. REFER TO CONTRACT SPECIFICATIONS FOR DETAILS.

3. IRREGULARLY-CUT BLACK GRANITE, BLUESTONE AND QUARTZSITE SHALL BE RE-ASSEMBLED IN

THEIR EXISTING PATTERN.

4. STONES INTEGRAL TO THE MILLSTONE SHALL BE LEFT IN-PLACE AND NOT DISTURBED. FIRST RING

OF STONE AROUND THE BASE OF THE PLANTER SHALL BE REMOVED AND RE-SET. CONTRACTOR

SHALL PROPOSE METHOD FOR PROTECTING MILLSTONE DURING WORK WITH CONTRACTING

OFFICER APPROVING PROPOSED METHOD; SEE SPECIFICATION SECTIONS 013591, 024119 & 040322.

5. RE-GRADE AND COMPACT SUBGRADE BELOW THE GRANITE STONE PAVERS IN ACCORDANCE TO

THE DRAWING DETAILS AND SPECIFICATIONS PROVIDED IN THE CONTRACT.

6. RE-SET ALL GRANITE, BLUESTONE AND QUARTZSITE OVER PREPARED SUBGRADE IN ACCORDANCE

TO THE DRAWINGS AND SPECIFICATIONS.

7. PROTECT LAWNS AND SHRUBS FROM DAMAGE DURING WORK. REPLACE DAMAGED LAWNS AND

SHRUBS IN ACCORDANCE WITH CONTRACT SPECIFICATIONS.

8. NEW METAL EDGERS SHALL BE SET MIN. 6 INCHES FROM MANSION WALL. CONSTUCT IN

ACCORDANCE WITH SHEET DETAIL 2 / L2.01.

9. CONTRACTOR SHALL BE RESPONSIBLE FOR LOCATING ALL UTILITIES IN THE VICINITY OF THE

WORK AREA AROUND THE STAR & DIAMOND.

IRREGULARLY-CUT BLACK GRANITE (9"X15"

TO 22"X30"). RE-INSTALL EACH PIECE TO

MATCH EXISTING PATTERN (TYP.). NEW

JOINT WIDTH SHALL MATCH EXISTING

(TYP.). BRUSH STONE DUST INTO ALL

JOINTS.

EXISTING STONE PLANTER. ALL STONES INTEGRAL TO THE

CONSTRUCTION OF THE PLANTER SHALL BE REMOVED,

CATALOGED, AND RE-SET TO CREATE LEVEL SURFACE AROUND

THE RE-SET GRANITE PAVERS AND BUILT TO MATCHING EXISTING

CONDITIONS (TYP.). IMPORT NEW TOPSOIL UPON CONCLUSION AND

FILL TO TOP OF GRADE. DO NOT CONTAMINATE WITH AGGREGATES

MILLSTONE (TYP.). RE-SET FIRST

RING AROUND THE MILLSTONE.

REFER TO DEMOLITION PLAN

FOR DETAILS.

GENERAL NOTES:

1. KNOWN UNDERGROUND ELECTRICAL SERVICE UTILITIES EXIST WITHIN

THE CONSTRUCTION LIMITS (ELECTRICAL PULLBOX SHOWN BELOW_.

CONTRACTOR SHALL BE RESPONSIBLE FOR VERIFYING THE LOCATION

OF UTILITIES WITHIN THE WORK AREA PRIOR TO THE START OF WORK.

2. IRRIGATION LINES EXIST WITHIN THE EXISTING CONSTRUCTION LIMITS.

3. GREY TOWERS MANSION SHALL BE PROTECTED FROM DAMAGE DURING

ALL ASPECTS OF WORK.

STAR & DIAMOND TERRACE

STAR & DIAMOND TERRACE. RECONSTRUCT

TERRACE IN ACCORDANCE WITH CONTRACT

DRAWINGS AND SPECIFICATIONS. SLOPE

PAVERS TO DRAIN AWAY FROM BUILDING

TOWARDS LAWN.

GREY TOWERS

MANSION

1'-0"±

BLUESTONE DIAMOND. RE-SET STONE

MAINTAINING 1'± ALIGNMENT IN

RELATION TO THE CENTER OF THE

DOOR AND MATCH EXISTING PATTERN

AND JOINT WIDTH (TYP.). BRUSH

STONE DUST INTO ALL JOINTS.

UTILIZE EXISTING JOINT THICKNESS

RANGING FROM 1/8" AND 1/2" WIDE

WHEN RE-SETTING IRREGULARLY-

CUT GRANITE. CATALOG JOINT

THICKNESS IN ACCORDANCE WITH

SECTION 024119 "DISMANTLING".

BLUESTONE DIAMOND. RE-INSTALL STONE

MAINTAINING 1'± ALIGNMENT IN RELATION

TO THE CENTER OF THE DOOR AND

MATCH EXISTING PATTERN AND JOINT

WIDTH (TYP.). BRUSH STONE DUST INTO

ALL JOINTS.

RE-SET QUARTZSITE PAVERS AND

VARIOUS STONE ALONG THE FRONT

EDGE OF THE TERRACE, INCLUDING

NEW METAL EDGING (TYP.).

BLUESTONE STAR. RE-SET

STONE MAINTAINING EXISTING

PATTERN (TYP.).

±1.5%

SLO

PED

EVEN

LY

±1.5%

SLO

PED

EVEN

LY

SET STONE TO

MATCH EXISTING

GRADE (TYP.).

L2.01

FOUNDATION WATERPROOF

MEMBRANE (HDPE), DIMPLE

PATTERN, PLACED ALONG THE

FULL LENGTH (TYP.).

L2.02

20'±INSTALL STONE TO

MATCH EXISTING GRADE

(TYP.).

64'±

1'-2"± 6'-1"±

5'-10"±

EXISTING BENCHES

TO BE REMOVED BY

THE GREY TOWERS

STAFF PRIOR TO

CONSTRUCTION.

MILLSTONE.

BLUESTONE STAR. RE-SET STONE

MATCHING EXISTING PATTERN AND

JOINT WIDTH (TYP.). BRUSH STONE

DUST INTO ALL JOINTS.

INSTALL NEW METAL EDGING

AROUND INDIVIDUAL PLANTER

BOXES (TYP.). SEE NOTE 7.

L2.01

L2.01

L2.01 1 2

EXISTING ELECTRICAL

FEATURE. DO NOT

DISTURB.

ALLOW FOR GUTTER

DRAIN TO PASS

THROUGH PLANTER BOX

ALLOW FOR GUTTER

DRAIN TO PASS

THROUGH PLANTER BOX

RESET BRICK PAVER

PATHWAYS (<5') TO

MATCH FINISH GRADE

OF STAR & DIAMOND.

RESET BRICK PAVER

PATHWAYS (<5') TO

MATCH FINISH GRADE

OF STAR & DIAMOND.

EXISTING SHRUB.

PROTECT DURING

COURSE OF WORK.

EXISTING SHRUB.

PROTECT DURING

COURSE OF WORK.

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SCALE IN FEET

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

5/2 1/2

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GREY TOWERS NHS

GREY TOWERS

HISTORIC TERRACES

AND WALKWAY

PRESERVATION

GREY TOWERS

NATIONAL HISTORIC SITE

MILFORD, PENNSYLVANIA

MARBLE COURT

DEMOLITION PLAN

4/7/2025

M. WEWERKA

M. ALANIZ

D. KIMBALL

L1.04 6 11

RESTORATION NOTES FOR GRANITE PAVER STONES:

1. REMOVE EACH STONE OR HISTORIC MEDALLION / CENTERPIECE

DESIGNATED FOR RE-USE AND NUMBER OR TAG EACH STONE IN A

MANNER THAT DOES NOT DAMAGE OR LEAVE PERMANENT MARKING ON

THE STONE.

2. EXISTING STONES SCHEDULED FOR DEMOLITION AND REMOVAL SHALL

STILL BE CATALOGED BY THE CONTRACTOR AS FOLLOWS:

2.1. RETAIN MINIMUM TWELVE (12) PIECES OF THE SMALL BLACK

GRANITE AND PINK GRANITE PIECES EACH, MEASURE EACH OF THE

STONES TO OBTAIN A REPRESENTATIVE RANGE OF STONE SIZES

FOR APPROVAL AND PROCUREMENT.

2.2. RETAIN SAMPLES OF BLUESTONE & PINK GRANITE DIMENSIONAL

STONE (PAVER STONE AND BORDER COPING). MEASURE THE STONE

TO OBTAIN A REPRESENTATIVE RANGE OF STONE SIZES FOR

APPROVAL AND PROCUREMENT.

2.3. REMOVE, CATALOG AND RE-USE BLUESTONE TRIANGLE SHAPES

THAT ARE NOT CRACKED OR NON-LAMINATED. REMOVE AND

DISPOSE DEFECTIVE STONE AND OBTAIN NEW STONES MATCHING

MATCHING THE SHAPE, SIZE AND COLOR OF THE EXISTING STONE.

2.4. MEASURE THE STONE TO OBTAIN REPRESENTATIVE SHAPE AND

SIZE FOR APPROVAL AND PROCUREMENT.

2.5. RETAIN SAMPLE OF RIVER STONE TO MATCH COLOR, SHAPE AND

TEXTURE FOR APPROVAL PRIOR TO PROCUREMENT. THE SIZE OF

THE NEW RIVER STONE IS SMALLER THAN EXISTING STONE.

2.6. RETAIN SAMPLE OF TERRA COTTA EDGING. REFER FOR SIZE,

THICKNESS, SHAPE AND COLOR FOR APPROVAL PRIOR TO

PROCUREMENT.

3. THE EXISTING GROUTED JOINTS ARE SEVERELY DEGRADED AND

EXPECTED THE STONES TO WILL COME OFF INDIVIDUALLY BY USE OF

COLD-CHISEL AND HAMMER (OR APPROVED EQUALS). DO NOT USE

MECHANICAL TECHNIQUES TO REMOVE THE STONES DESIGNATED FOR

RE-USE.

4. EXISTING PLANTERS SHALL BE REMOVED BY THE GREY TOWERS STAFF

PRIOR TO THE START OF WORK.

5. EXISTING METAL ACCESSIBLE RAMP SHALL BE REMOVED AND STORED

SAFELY BY THE CONTRACTOR PRIOR TO THE START OF WORK. THE

RAMP IS CURRENTLY SITUATED OVER THE BLUESTONE STEPPING STONE

LAWN.

6. THE EXISTING POOL, EXCLUDING THE PINK GRANITE COPING ALONG THE

BACK SIDE, IS SCHEDULED TO REMAIN AND BE REHABILITATED. THE

CONTRACTOR SHALL PROTECT THIS FEATURE FROM DAMAGE DURING

THE COURSE OF WORK.

7. THE EXISTING STEPPING STONE LAWN SHALL BE REMOVED AND RE-SET

IN ACCORDANCE WITH CONTRACT DOCUMENTS.

8. THE EXISTING TERRA COTTA URNS ARE SCHEDULED TO REMAIN. THE

CONTRACTOR SHALL PROTECT THIS FEATURE FROM DAMAGE DURING

THE COURSE OF WORK.

9. APPROXIMATE LOCATION OF UNDERGROUND UTILITIES ARE SHOWN ON

THIS SHEET (ACTUAL LOCATIONS NOT KNOWN). THE CONTRACTOR

SHALL BE RESPONSIBLE FOR PROTECTING THESE UTILITIES DURING THE

COURSE OF WORK. IN ADDITION, THE CONTRACTOR SHALL ALSO BE

RESPONSIBLE FOR LOCATION OTHER UTILITIES ADJACENT TO THE

WORK AREA AND PROTECTING THOSE UTILITIES FROM DAMAGE DURING

THE COURSE OF WORK. NOT ALL ABOVE GROUND UTILITIES, SUCH AS

LIGHT FIXTURES, ARE SHOWN ON THESE PLANS.

LEGEND:

SCHOONER CENTERPIECE - REMOVE EXISTING

CENTERPIECE AND TRANSFER TO GREY TOWERS

STORAGE AREA AND USE AS SAMPLE FOR NEW CASTING.

HISTORIC MEDALLIONS (FLANKING BOTH SIDES OF THE

CENTERPIECE) CONSISTING OF BLUESTONE CROSS

PATTERN WITH CONCRETE BORDER - REMOVE AND

SALVAGE FOR RE-INSTALLATION.

REMOVE AND DISPOSAL OFFSITE ALL STONE NOT

DESIGNATED FOR SALVAGE OR RE-USE. REFER TO

SPECIFICATIONS FOR DETAILS.

REMOVE AND DISPOSAL PIECES THAT ARE DEFECTIVE

(CRACKED, LAMINATED CRACK, SPALLED). SALVAGE AND

CATALOG PIECES THAT ARE SUITABLE FOR RE-USE.

REMOVE, CATALOG LOCATION, AND RE-SET INDIVIDUAL

STONES.

APPROXIMATE ALIGNMENT OF STORMWATER

DRAIN. DEPTH UNKNOWN. EXCAVATE

AROUND PIPE AND PRESERVE DURING

CONSTRUCTION.

APPROXIMATE ALIGNMENT OF

SEWER (OUTBOUND FROM

MANSION). DEPTH UNKNOWN.

EXISTING POOL

EXISTING TERRA

COTTA URN

EXISTING TERRA

COTTA URN

APPROXIMATE ALIGNMENT OF STORMWATER

DRAIN. DEPTH UNKNOWN. EXCAVATE

AROUND PIPE AND PRESERVE DURING

CONSTRUCTION.

EXISTING BLUESTONE PAVER

(TRIANGULAR-SHAPE) (TYP.).

EXISTING DRAIN INLET &

BRASS GRATE

EXISTING DRAIN INLET &

BRASS GRATE

EXISTING RIVERSTONE

(TYP.)

BLUESTONE PAVER

(TYP.)

EXISTING TERRA COTTA

STONE EDGING (TYP.).EXISTING

IRREGULAR-CUT

BLACK GRANITE

SETTS (TYP.)

EXISTING IRREGULAR-CUT

PINK GRANITE SETTS (TYP.)

EXISTING IRREGULAR-CUT

BLACK GRANITE SETTS (TYP.)

EXISTING BLUESTONE PAVER

(TRIANGULAR-SHAPE) (TYP.)

EXISTING IRREGULAR-CUT

BLACK GRANITE SETTS

(TYP.)

EXISTING IRREGULAR-CUT

PINK GRANITE SETTS

(TYP.)

EXISTING PINK GRANITE

PAVERS (TYP.)

EXISTING IRREGULAR-CUT

BLACK GRANITE SETTS (TYP.)

EXISTING PINK GRANITE

COPING (TYP.)

EXISTING PINK GRANITE

PAVERS (TYP.).

EXISTING LIGHT

FIXTURE

EXISTING UTILITY

FEATURE

EXISTING IRREGULAR-CUT

BLACK GRANITE SETTS

(TYP.)

EXISTING PATHWAY (BRICK PAVERS).

REMOVE APPROXIMATELY 5 FEET OF

BRICK PAVERS, STARTING WHERE AT

THE EDGE OF THE MARBLE COURT.

BLUESTONE STEPPING

STONE LAWN WITH

STABILIZED SOIL.

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MARBLE COURT

RESTORATION NOTES FOR GRANITE PAVER STONES:

1. REMOVE EACH STONE AND NUMBER OR TAG EACH

STONE IN A MANNER THAT DOES NOT DAMAGE OR

LEAVE PERMANENT MARKING ON THE STONE. THE

EXISTING GROUT AND MORTAR IS SEVERELY

DEGRADED AND EXPECTED OUTCOME IS FOR THE

STONES TO COME OFF INDIVIDUALLY BY USE OF

COLD-CHISEL AND HAMMER (OR APPROVED EQUALS).

DO NOT USE MECHANICAL TECHNIQUES TO REMOVE

THE STONES.

2. IRREGULAR-CUT RED GRANITE SETTS SHALL BE

INSTALLED IN THEIR EXISTING PATTERN. CONTRACTOR

SHALL PROPOSE TECHNIQUE IN ACCORDANCE WITH

SPECIFICATION SECTION 024119 "DISMANTLING".

3. RE-GRADE AND COMPACT SUBGRADE BELOW THE

STONES IN ACCORDANCE TO THE DRAWING DETAILS

AND SPECIFICATIONS PROVIDED IN THE CONTRACT.

4. RE-INSTALL PAVER STONES & GRANITE OVER

PREPARED SUBGRADE IN ACCORDANCE TO THE

DRAWING DETAILS AND SPECIFICATIONS. WORK ALSO

INCLUDES SETTING STONES USING NEW MORTAR AND

GROUT.

5. RESTORE EXISTING POOL BY MEDIA-BLASTING INSIDE

OF BOWL, APPLYING NEW THIN COAT OF MORTAR OVER

SURFACE (SKIM COAT), AND RE-PAINTING INTERIOR OF

THE BOWL.

6. ENTIRETY OF THE FINISHED SURFACE OF THE MARBLE

COURT SHALL DRAIN TOWARDS THE TWO (2) FLOOR

DRAINS AS SHOWN. REPLACE ALL CURBING ALONG THE

EDGE OF THE MARBLE COURT.

7. DIMENSIONS FOR SERPENTINE PATTERN BAND WIDTHS:

1 VARY WIDTH OF BAND BETWEEN 2 & 4 INCHES.

2 VARY WIDTH OF BAND BETWEEN 5 & 7 INCHES.

3 VARY WIDTH OF BAND BETWEEN TRIANGLES AND

OTHER PAVING BETWEEN 3 & 6 INCHES.

4 VARY DIAMETER OF SCROLL BETWEEN 3'-9" & 4'-6".

5 VARY WIDTH OF BAND BETWEEN 10 & 12 INCHES.

GENERAL NOTES:

1. SEWER AND STORMWATER DRAIN PIPE EXIST BELOW

FOOTPRINT OF THE MARBLE COURT. ALIGNMENTS OF

THESE PIPES ARE PROVIDED ON THE DETAIL BUT EXACT

LOCATION AND DEPTH IS NOT KNOWN. THE

CONTRACTOR SHALL BE RESPONSIBLE FOR VERIFYING

THE LOCATION OF OTHER UTILITIES (PARTICULARLY

SEWER AND ELECTRICAL) WITHIN THE WORK AREA

PRIOR TO THE START OF WORK.

2. IRRIGATION LINES EXIST WITHIN THE EXISTING

CONSTRUCTION LIMITS.

3. GREY TOWERS MANSION SHALL BE PROTECTED FROM

DAMAGE DURING ALL ASPECTS OF WORK.

4. CONTRACTOR SHALL PROTECT EXISTING URNS,

SHRUBS, ELECTRICAL UTILITIES AND OTHER

UNDERGROUND UTILITIES DURING FROM DAMAGE

DURING WORK.

EXISTING POOL. RESTORE POOL IN

ACCORDANCE WITH NOTE 5 ON THIS

SHEET AND THE SPECIFICATIONS.

MARBLE COURT. REMOVE AND DISPOSE IN ACCORDANCE

WITH DEMOLITION SHEET AND INSTALL NEW PAVERS IN

ACCORDANCE WITH CONTRACT DRAWINGS AND

SPECIFICATIONS. SLOPE NEW PAVERS TO DRAIN AWAY

FROM THE MANSION AND TOWARDS DRAIN INLETS.

IRREGULAR-CUT GRANITE (SERPENTINE-PATTERN) SHALL

BE INSTALLED TO MATCH EXISTING PATTERN.

SET NEW CAST CONCRETE CENTERPIECE

WITH SHIP IMPRINT. METAL FRAME TO MAKE

NEW SHIP SHALL BE PROVIDED BY GREY

TOWERS UPON CONTRACTOR'S REQUEST.

INSTALL NEW CAST IN ORIGINAL LOCATION

WITH SHIP ORIENTED TO MATCH EXISTING.

INSTALL NEW RIVERSTONE (TYP.).

USE BLACK PEBBLE OR RIVER

STONE, 3/4- TO 2-INCH PIECES.

INSTALL NEW IRREGULAR-CUT

BLACK GRANITE SETTS AT

EXISTING LOCATIONS (TYP.).

INSTALL NEW IRREGULAR-CUT

BLACK GRANITE SETTS AT

EXISTING LOCATIONS (TYP.).

CONTRACTOR SHALL NOTE THE

EXISTING PATTERN OF

IRREGULAR-SHAPED SETTS.

DOCUMENT & SURVEY AND RE-SET

TO MATCH EXISTING.

RE-INSTALL EXISTING PINK GRANITE

PAVERS AT EXISTING LOCATIONS

(TYP.), MATCHING EXISTING PATTERN

AND JOINT-ORIENTATION (TYP.).

RE-INSTALL EXISTING NEW BLUESTONE

PAVER AROUND CONCRETE CENTER- PIECE

(TYP.), MATCHING EXISTING PATTERN AND

JOINT-WIDTH. USE NEW STONE TO REPLACE

DEFECTIVE STONE (REFER TO DEMOLITION

SHEET L1.04).

EXISTING METAL RAMP. SALVAGE

DURING RESTORATION AND RE-SET

UPON COMPLETION OF WORK. RAMP

SHALL NOT BE SET OVER HISTORIC

MEDALLION AND CONCRETE

CENTERPIECE.

HISTORIC MEDALLION (TYP.), RE-SET

WITH BLUESTONE IN-LAY AND

CONCRETE ATTACHED (2 TOTAL).

INSTALL NEW TERRA COTTA

STONE EDGING (TYP.).

RE-INSTALL EXISTING TRIANGULAR

SHAPED BLUESTONE, USING EXISTING

STONE (TYP.). USE NEW STONE TO

REPLACE DEFECTIVE STONE (REFER

TO DEMOLITION SHEET L1.04).

INSTALL NEW IRREGULAR-CUT BLACK

GRANITE SETTS AT EXISTING LOCATIONS

(TYP.).

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

5/2 1/2

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GREY TOWERS NHS

GREY TOWERS

HISTORIC TERRACES

AND WALKWAY

PRESERVATION

GREY TOWERS

NATIONAL HISTORIC SITE

MILFORD, PENNSYLVANIA

MARBLE COURT

RESTORATION

4/7/2025

M. WEWERKA

M. ALANIZ

D. KIMBALL

L1.05 7 11

ORIENTATION OF NEW CONCRETE

CENTERPIECE WITH SHIP IMPRINT.

RESET CONCRETE CENTERPIECE

WITH SHIP IMPRINT AT SAME

ORIENTATION

±1.0%

±1.0% ±1.0%

±1.0%

±1.0%

±1.0%

±1 .0

±1 .0

INSTALL NEW IRREGULAR-CUT

PINK GRANITE SETTS AT

EXISTING LOCATIONS (TYP.).

INSTALL NEW IRREGULAR-CUT

PINK GRANITE SETTS AT

EXISTING LOCATIONS (TYP.).

2 3 4 5

FOUNDATION WATERPROOFING

MEMBRANE, PLACED ALONG THE

FULL LENGTH WHERE CLEAN

GRAVEL WILL BE PLACED UP

AGAINST THE WALL (TYP.).

L2.02

35'-0"±

6' -4

6'

-4

13'-0"±

'-4

RE-INSTALL EXISTING TRIANGULAR

SHAPED BLUESTONE, USING EXISTING

STONE (TYP.). USE NEW STONE TO

REPLACE DEFECTIVE STONE (REFER TO

DEMOLITION SHEET L1.04).

INSTALL NEW TERRA COTTA

STONE EDGING (TYP.).

INSTALL NEW IRREGULAR-CUT

BLACK GRANITE SETTS AT

EXISTING LOCATIONS (TYP.).

L2.02

L2.02

INSTALL NEW IRREGULAR-CUT

BLACK GRANITE SETTS AT

EXISTING LOCATIONS (TYP.).

INSTALL NEW PINK

GRANITE COPING

(TYP.)

PROVIDE BREAK IN TERRA COTTA

STONE EDGING FOR EXISTING BRICK

PAVER PATHWAY. RESET BRICK

PAVER PATHWAYS (<5') TO MATCH

FINISH GRADE OF MARBLE COURT.

INSTALL NEW TERRA COTTA

STONE EDGING (TYP.) BEHIND

GRANITE PAVERS

RE-INSTALL EXISTING PINK GRANITE

PAVERS AT EXISTING LOCATIONS

(TYP.), MATCHING EXISTING PATTERN

AND JOINT-ORIENTATION (TYP.).

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L2.01

STAR & DIAMOND SECTION TYPICAL

(NOT TO SCALE)

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

5/2 1/2

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GREY TOWERS NHS

GREY TOWERS

HISTORIC TERRACES

AND WALKWAY

PRESERVATION

GREY TOWERS

NATIONAL HISTORIC SITE

MILFORD, PENNSYLVANIA

STAR & DIAMOND

TERRACE RESTORATION

DETAILS

4/7/2025

M. WEWERKA

M. ALANIZ

D. KIMBALL

L2.01 8 11

L2.01

ISOMETRIC DETAIL OF STEEL EDGE

(NOT TO SCALE)

NON-WOVEN GEOTEXTILE FABRIC

12" THICK COMPACTED

GRAVEL BASE, GRADING "C"

COMPACTED SUBGRADE. SEE

NOTES ON THIS SHEET.

NON-WOVEN GEOTEXTILE FABRIC

FLAT-LAID RE-INSTALLED STONE PAVERS

WITH 1/2-INCH MAX. JOINT FILLED WITH

STONE DUST (TYP.)

INSTALL NEW METAL EDGING

4" THICK SAND-CEMENT LEVELING COURSE

NOTES:

1. ALL PAVING STONES SHALL BE SALVAGED, LAID OUT AND PLACED

TO MATCH EXISTING CONDITION. REFERENCE THE L1-SHEETS

FOR DETAILS.

2. KNOWN UNDERGROUND UTILITIES ARE INDICATED ON THE

L1-SHEETS. HOWEVER, ADDITIONAL UTILITIES MAY EXIST BUT ARE

NOT KNOWN AT THIS TIME. CONTRACTOR SHALL BE RESPONSIBLE

FOR LOCATING THESE UTILITIES PRIOR TO THE START OF WORK.

3. PREPARE SUBGRADE BY COMPACTING A MINIMUM OF THREE (3)

COMPLETE PASSES OR UNTIL VISUAL DISPLACEMENT HAS

CEASED. COMPACTIVE EFFORT SHALL NOT CAUSE DAMAGE TO

THE ADJACENT STRUCTURES OR OTHER FEATURES ONSITE.

4. REFERENCE L1-SHEETS FOR DRAINAGE REQUIREMENTS AND

DIMENSIONS OF THE STAR & DIAMOND TERRACE.

5. PROVIDE WATERPROOF MEMBRANE WHERE SHOWN ON SHEET

L1.03 AND IN ACCORDANCE WITH THE DETAIL SHOWN ON SHEET

L2.02.

BOTTOM OF GRAVEL BED

LINE

BOTTOM OF SAND BED LINE

BOTTOM OF PAVERS

LINE

TOP OF METAL SET 1/4-INCH

BELOW THE TOP OF PAVERS

(TYP.)

FIELD INSTALLED WELDED 1/4

INCH STEEL BRACKETS (TYP.)

1/4" X 24" ROLLED PLATE STEEL EDGING.

CONTINUOUS ALONG OUTSIDE EDGE OF ENTIRE

STAR AND DIAMONDS-EXCEPT AGAINST MANSION

WALLS- W/ FIELD WELDED SEAMS. BEND STEEL AS

NECESSARY TO MATCH RADII WHERE NECESSARY.

TOP OF METAL SET 1/4-INCH

BELOW THE TOP OF PAVERS

(TYP.)

1/4" X 24" ROLLED PLATE STEEL EDGING.

CONTRACTOR SHALL FIELD MEASURE EACH

PLANTER TO FABRICATE INDIVIDUAL

PLANTERS TO MATCH EXISTING DIMENSION

1/4" ROLLED PLATE STEEL EDGING. LENGTHS

VARY AND SHALL BE FIELD MEASURED BY

THE CONTRACTOR PRIOR TO FABRICATION.

PROVIDE OPEN-BOTTOM AND OPEN-END.

SET OPEN-END FACING THE MANSION.

LIGHTLY PRESS EDGE OF STEEL

AGAINST THE MANSION. DO NOT

CAUSE ABRASION OR OTHER DAMAGE

TO THE MANSION WHEN PLACING.

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L2.02

MARBLE COURT SECTION TYPICAL

(NOT TO SCALE)

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

5/2 1/2

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GREY TOWERS NFS

GREY TOWERS

HISTORIC TERRACES

AND WALKWAY

PRESERVATION

GREY TOWERS

NATIONAL HISTORIC SITE

MILFORD, PENNSYLVANIA

MARBLE COURT

RESTORATION DETAIL &

WATERPROOFING DETAIL

4/7/2025

M. WEWERKA

M. ALANIZ

D. KIMBALL

L2.02 9 11

2" x 2" WD FORM CHAMFER

REPLACE ALL TERRA COTTA BULLNOSE

EDGING. SET ALL EDGING IN CONCRETE SLAB.

2"±

INSTALL NEW GRANITE OR BLUESTONE

PAVERS. REFER TO L1-SHEETS FOR

DETAILS.

NOTES:

1. ALL PAVING STONES SHALL BE LAID OUT AND PLACED TO

MATCH EXISTING CONDITION. REFERENCE THE L1-SHEETS

FOR DETAILS.

2. KNOWN UNDERGROUND UTILITIES ARE INDICATED ON THE

L1-SHEETS. HOWEVER, ADDITIONAL UTILITIES MAY EXIST

BUT ARE NOT KNOWN AT THIS TIME. CONTRACTOR SHALL

BE RESPONSIBLE FOR LOCATING THESE UTILITIES PRIOR

TO THE START OF WORK.

3. PREPARE SUBGRADE BY COMPACTING A MINIMUM OF

THREE (3) COMPLETE PASSES OR UNTIL VISUAL

DISPLACEMENT HAS CEASED. COMPACTIVE EFFORT SHALL

NOT CAUSE DAMAGE TO THE ADJACENT STRUCTURES OR

OTHER FEATURES ONSITE.

4. REFERENCE L1-SHEETS FOR DRAINAGE REQUIREMENTS

AND DIMENSIONS OF THE MARBLE COURT.

5. WHERE FOUNDATION WATERPROOFING MEMBRANE IS

INSTALLED, CUT HOLE UNDERNEATH THE PLANTER TO

ALLOW FOR FREE DRAINING.

6. BASIS OF DESIGN IS PROVIDED ON THIS SHEET (DESIGN

CRITERIA). MODIFICATIONS TO THE ABOVE DESIGN ARE

PROHIBITED WITHOUT APPROVAL FROM THE

CONTRACTING OFFICER PRIOR TO THE START OF WORK.

PROPOSALS SHOULD PROVIDE RATIONALE FOR CHANGE

AND DEMONSTRATION PROPOSED CHANGE WILL MEET OR

EXCEED THE REQUIREMENTS PROVIDED ON THIS SHEET

AND IN THE CONTRACT SPECIFICATIONS.

4" THICK COMPACTED GRAVEL

BASE, GRADING "C"

COMPACTED SUBGRADE. SEE

NOTES ON THIS SHEET.

2" POLY ISO INSULATION BOARD

(CONTINUOUS) WITH TAPERED JOINTS

FINISHED GROUND

5" THICK CONCRETE SLAB

#5 REBAR @ 12" O.C.,

BOTH DIRECTIONS

DESIGN CRITERIA FOR CONCRETE:

1. MINIMUM SPECIFIED COMPRESSIVE STRENGTH @ 28 DAYS PER ACI 332.-08, TABLE 4.1,

FOR TYPE 3 CONCRETE CONSTRUCTION AND WEATHER PROBABILITY CLASSIFICATION

OF "SEVERE" = 4,500 PSI

2. MAXIMUM SLUMP PER ACI 332-08, TABLE 4.1, FOR TYPE 3 CONCRETE CONSTRUCTION

AND WEATHER PROBABILITY CLASSIFICATION OF "SEVERE" =MAX. 5" SLUMP.

3. AIR CONTENT FOR TYPE 3 CONCRETE CONSTRUCTION PER ACI 332-08, TABLE 4.2, FOR

MAXIMUM AGGREGATE SIZE OF 1-INCH = 6.0% ± 1.5%

4. SUPPORT AGGREGATE BASE PER ACI 332-08, SECTION 8.2.2 = 4" DEPTH

5. CLEAR COVER OF REINFORCEMENT FROM TOP OF THE SLAB PER ACI 332-08, SECTION

8.6.1 = 1.5"

6. MINIMUM REINFORCEMENT FOR CONCRETE HAVING NO JOINTS DETERMINED PER ACI

332-08, SECTION 8.6.2 = #5 REBAR @ 12" O.C.

7. INSULATION DETERMINED FROM "REVISED BUILDERS GUIDE TO FROST PROTECTED

SHALLOW FOUNDATIONS".

3/8" THICK MORTAR BED

INSTALL NEW IRREGULAR GRANITE

SETTS (PINK OR BLACK) (TYP.).

REFER TO L1-SHEETS FOR DETAILS.

INSTALL NEW CAST CONCRETE

CENTERPIECE WITH SHIP. REFER

TO L1-SHEETS FOR DETAILS.

INSTALL EXISTING BLUESTONE PAVERS.

REPLACE BROKEN PAVERS WITH NEW

BLUESTONE PAVERS. REFER TO

L1-SHEETS FOR DETAILS.

INSTALL NEW RIVERSTONE. REFER TO

L1-SHEETS FOR DETAILS.

PLACE MORTAR BETWEEN MOSAIC

ELEMENTS. SEE SPECIFICATIONS

FOR BLEND. JOINT PATTERN TO

MATCH EXISTING.

NON-WOVEN GEOTEXTILE

FABRIC

L2.02

WATERPROOFING DETAIL

(NOT TO SCALE)

FOUNDATION WATERPROOFING MEMBRANE,

PLACED ALONG THE FULL LENGTH WHERE

CLEAN GRAVEL WILL BE PLACED UP AGAINST

THE WALL & TERMINATING JUST BELOW TOP

OF PAVER STONE (TYP.).

WRAP FOUNDATION WATERPROOFING

MEMBRANE ALONG BOTTOM SUBGRADE AND

PLACE ABOVE THE GEOTEXTILE FABRIC (TYP.).

5'-0" (MIN.)

NON-WOVEN

GEOTEXTILE

FABRIC

BASEMENT WALL

PAVER STONE

(TYP.)

COMPACTED GRAVEL

BASE

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C

C

CCCCC

C C

C C

C

C

C

C

STEP REPAIRS DETAIL

(NOT TO SCALE)

STEPS PLAN VIEW @ FINGER BOWL

(NOT TO SCALE)

BOTTOM LANDING. REMOVE AND RESET TO

ELIMINATE 1.5" HIGH TRIPPING HAZARD. PLACE

CRUSHED AGGREGATE BENEATH STONE TO

LEVEL SUBGRADE AND ELIMINATE TRIPPING

HAZARD.

FIRST RISER. EXISTING HEIGHT = 6".

ADJUST HEIGHT TO 6-3/4" ± 1/4".

TOP LANDING. NO WORK

REQUIRED

EXISTING TRIPPING

HAZARD, 1.5" HIGH

SECOND RISER. EXISTING HEIGHT = 7".

ADJUST HEIGHT TO 6-3/4" ± 1/4".

THIRD RISER. EXISTING HEIGHT = 6".

ADJUST HEIGHT TO 6-3/4" ± 1/4".

FOURTH RISER. EXISTING HEIGHT = 6".

ADJUST HEIGHT TO 6-3/4" ± 1/4".

FIFTH RISER. EXISTING HEIGHT = 9".

ADJUST HEIGHT TO 6-3/4" ± 1/4".

DISMANTLE EXISTING TREAD AND

RISER AND RE-SET IN ACCORDANCE

WITH THE DETAIL ON THIS SHEET.

RISERS SHALL BE RE-SET AT

EXISTING LOCATIONS.

JOINT WIDTH BETWEEN STONES

VARY (RISERS AND TREADS).

NEW JOINT WIDTHS SHALL

MATCH EXISTING (TYP.)

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

5/2 1/2

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GREY TOWERS NHS

GREY TOWERS

HISTORIC TERRACES

AND WALKWAY

PRESERVATION

GREY TOWERS

NATIONAL HISTORIC SITE

MILFORD, PENNSYLVANIA

STEP RESTORATION SITE

PLAN AND DETAILS

4/7/2025

M. WEWERKA

M. ALANIZ

D. KIMBALL

L2.03 10 11

STEPS PLAN VIEW @ MOAT AREA

(NOT TO SCALE)

FINGER BOWL. REPAIR IN

ACCORDANCE TO CONTRACT

SPECIFICATIONS.

STONE BENCHES. REPAIR IN

ACCORDANCE TO CONTRACT

SPECIFICATIONS.

MOAT (NO WORK)

DISMANTLE EXISTING TREAD AND

RISER AND RE-SET IN ACCORDANCE

WITH THE BELOW DETAIL ON THIS

SHEET. SET STONE TO MATCH

EXISTING RADIAL PATTERN.

JOINT WIDTH BETWEEN STONES VARY

(RISERS AND TREADS). NEW JOINT

WIDTHS SHALL MATCH EXISTING (TYP.)

SET TOP TREAD LEVEL WITH LAWN

BEHIND TREAD. IMPORT FILL AS

NEEDED TO LEVEL THE GROUND.

CONTRACTOR SHALL BE RESPONSIBLE

FOR CHECKING ELEVATIONS ONSITE

AND SETTING THE STEP RISERS TO

EQUAL HEIGHTS AND AT EXISTING

LOCATIONS.

TREAD WIDTH

MATCH EXISTING

TREAD

THICKNESS

2-1/2"±

SAND-CEMENT LEVELING COURSE,

1-INCH DEPTH (TYP.).

RE-BUILT LEVELING BED AND

SUBGRADE AS NEEDED TO

CONSTRUCT RISER HEIGHTS AS

REQUIRED.

NOTES:

1. CONDITIONS BELOW SUBGRADE ARE UNKNOWN.

2. SUBGRADE STABILIZATION WORK INCLUDES SAND-CEMENT

LEVELING COURSE, NON-WOVEN GEOTEXTILE FABRIC, AND

CLEAN GRAVEL COURSE. WORK SHALL BE CONSIDERED

INCIDENTAL TO PAY ITEMS LISTED IN THE SCHEDULE OF ITEMS.

2-1/2"±

RISER HEIGHTS

VARY. SEE THIS

SHEET FOR

ELEVATIONS

COMPACT SUBGRADE.

COMPACTED AGGREGATE BASE

COURSE, GRADING "C", 5-INCH

DEPTH (TYP.).

REMOVE AND RE-SET BLUESTONE PAVERS

(TREADS) OVER PREPARED SUBGRADE

AND BASE COURSES. SET PIECES TO

MATCH EXISTING PATTERN, AND JOIN EACH

PIECE WITH MORTAR. JOINT WIDTHS SHALL

MATCH EXISTING THICKNESS (TYP.).

MORTAR LEVELING COURSE,

1-INCH DEPTH, PLACED OVER

RISER STONES

REMOVE AND RE-SET STACKED

BLUESTONE RISERS AS NEEDED TO

MEET THE REQUIRED ELEVATIONS

ADJOIN RECONSTRUCTED TREAD AND

RISER AGAINST EXSTING STONE WALL

BY PLACING MORTAR AND SETTING

TREAD AND RISER AGAINST WALL (TYP.).

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EXISTING SITE CONDITIONS (STEP REPAIRS)

(NOT TO SCALE)

REPLACE WHITE STONE WITH BLUESTONE MATCHING

THE EXISTING COLOR AND CHARACTERISTICS OF THE

SURROUNDING STONE.

EXISTING LANDSCAPING

WALL. DO NOT DISTURB.

RESET STEP TREADS (PAY ITEM

40322-5) MAINTAINING THE

EXISTING RADIAL PATTERN (TYP.)

ELIMINATE TRIPPING BY ADDING TOPSOIL AND

PLANTED LAWN BEHIND TREAD TO LEVEL THE

SURROUNDING GROUND.

EXISTING STONE SET OVER AGGREGATE

BASE OR NATIVE SOIL. NO SUBSTRUCTURE

IS PRESENT (TYP.).

NOTES:

1. REMOVE AND SALVAGE EXISTING STONES IN ACCORDANCE WITH

SECTION 013591 "HISTORIC TREATMENT PROCEDURES" AND

SECTION 024119 "DISMANTLING".

2. RE-SET ALL SALVAGED STONES IN ACCORDANCE WITH SECTION

040322 "HISTORIC STONE WORK" AND THE DETAIL SHOWN ON

SHEET L2.03.

3. EXISTING STONE WORK NOT CLASSIFIED AS "BLUESTONE" (AS

SHOWN ON DRAWINGS) SHALL BE REMOVED AND REPLACED WITH

BLUESTONE MEETING THE REQUIREMENTS IN SECTION 321480

"ARCHITECTURAL STONE". PHOTOS BELOW INDICATE SPECIFIC

STONES THAT WILL BE REQUIRED TO BE REPLACED.

4. BOND EDGE OF TREADS AND RISERS TO THE WALLS USING

MORTAR AS SPECIFIED IN SECTION 040322 "HISTORIC STONE

WORK".

EXISTING LANDSCAPING

WALL. DO NOT DISTURB.

RESET RISER STONES TO THE

HEIGHT (PAY ITEM 40322-5) AND

CONDITION SHOWN ON THIS

SHEETS DETAILS (TYP.)

ELIMINATE 1.5 INCH HIGH

TRIPPING HAZARD BY

REMOVING AND RESETTING

LANDING BELOW HAZARD

RESET STEP TREADS

MAINTAINING THE EXISTING

ANGULAR PATTERN (TYP.)

DISASSEMBLE ALL STONE WORK BY CATALOGING

AND LABELING LOCATION AND POSITION OF EACH

STONE. THESE STONES SHALL BE RE-INSTALLED IN

THE CATALOGED (CURRENT) LOCATION AND

POSITION (TYP.).

JOINT WIDTH BETWEEN

STONES VARY. NEW

JOINT WIDTHS SHALL

MATCH EXISTING (TYP.)

RISERS COMPRISE OF

NUMEROUS FLAT-

SHAPED STONES SET

IN LONGITUDINAL

PATTERN AND JOINED

WITH MORTAR (TYP.)

TREAD COMPRISE OF

NUMEROUS FLAT-

SHAPED STONES SET

IN RANDOM PATTERN

AND JOINED WITH

MORTAR (TYP.)

EXISTING LANDSCAPING

WALL. DO NOT DISTURB.

DRAWN

DESIGNER

STAMPS, LOGOS, AND SEALS

PROJECT NAME

DRAWING TITLE

CHECKED

ARCHIVE NO.DATE

PROJECT NO.

DRAWING SHEET NO.

DATENO.

REVISION / ISSUE

OFSHEET

United States Department of Agriculture Forest Service

5/2 1/2

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GREY TOWERS NHS

GREY TOWERS

HISTORIC TERRACES

AND WALKWAY

PRESERVATION

GREY TOWERS

NATIONAL HISTORIC SITE

MILFORD, PENNSYLVANIA

EXISTING CONDITIONS

(STEP RESTORATION)

4/7/2025

M. WEWERKA

M. ALANIZ

D. KIMBALL

L2.04 11 11

EXISTING STONE SET OVER

AGGREGATE BASE OR NATIVE SOIL

AND SAND-CEMENT LEVELING COURSE.

NO SUBSTRUCTURE IS PRESENT (TYP.).

REPAIR BROKEN BENCH.

RE-SET STONE SEAT ONTO

PILLARS (PAY ITEM 040322-6).

ASSOCIATED WITH PAY ITEM 040322-5 & 040322-6

ASSOCIATED WITH

PAY ITEM 040322-4

ASSOCIATED WITH

PAY ITEM 040322-5

REPAIR BROKEN BENCH.

RE-SET STONE SEAT ONTO

PILLARS (PAY ITEM 040322-6).

USE NEW MORTAR TO RE-SET

BENCH SEAT ON THE PEDESTALS.

SEAT IS SPLIT IN TWO PIECES AND

ALSO NEEDS TO BE JOINED

TOGETHER WITH MORTAR.

ASSOCIATED WITH

PAY ITEM 040322-6

USE NEW MORTAR TO RE-SET

BENCH SEAT. SEAT IS THREE

PIECES AND CURRENTLY NOT

LEVEL. USE SHIMS AS NEEDED TO

RE-SET AND RE-LEVEL SEATS.

ASSOCIATED WITH

PAY ITEM 040322-6

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