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BOSTON PUBLIC WORKS DEPARTMENT
ROADWAY DESIGN STANDARDS
DOWNLOADABLE FILES: Standard PWD Details for reference and download can be found here
ROADWAY DESIGN STANDARDSTABLE OF CONTENTS
A.1 BOLLARD - STEEL.......................................................................................................................................................................................................................2
C.1 CURB - GRANITE RESET.........................................................................................................................................................................................................3C.2 CURB - GRANITE SLOPED....................................................................................................................................................................................................4 C.3 CURB - MOUNTABLE...............................................................................................................................................................................................................5C.4 CURB - GRANITE CURB AT BACK OF SIDEWALK.............................................................................................................................................6C.5 CURB - GRANITE BLOCK HIP GUTTER.......................................................................................................................................................................7
D.1 DRIVEWAY - RESIDENTIAL..................................................................................................................................................................................................8D.2 DRIVEWAY - COMMERCIAL...............................................................................................................................................................................................9D.3 DRIVEWAY - SIDEWALK WIDTH LESS THAN 7’..............................................................................................................................................10
P.1 PAVEMENT SECTION - ARTERIAL ROADWAY.................................................................................................................................................11P.2 PAVEMENT SECTION - RESIDENTIAL ROADWAY.........................................................................................................................................12P.3 PAVEMENT SECTION - SCORED CEMENT CONCRETE..............................................................................................................................13
R.1 PEDESTRIAN RAMP - GENERAL INFORMATION.............................................................................................................................................14 R.2 PEDESTRIAN RAMP - SIDEWALK WIDTH 6.5’ AND GREATER...............................................................................................................15R.3 PEDESTRIAN RAMP - SIDEWALK WIDTH LESS THAN 6.5’.......................................................................................................................16R.4 PEDESTRIAN RAMP - SIDEWALK WITH NON-WALKING AREA.........................................................................................................17R.5 PEDESTRIAN RAMP - DETECTABLE WARNING PANEL..............................................................................................................................18
S.1 SIDEWALK - CONCRETE....................................................................................................................................................................................................19S.2 SIDEWALK - BRICK...................................................................................................................................................................................................................20S.3 SIDEWALK + DRIVEWAY - HMA ................................................................................................................................................................................21S.4 SIDEWALK - PERMEABLE PAVER...................................................................................................................................................................................22S.5 SIDEWALK - TREE PIT (4’X6’)...........................................................................................................................................................................................23S.6 SIDEWALK - TREE PIT (3’X8’)...........................................................................................................................................................................................24
U.1 UTILITY - CONCRETE ENCASED CONDUIT.......................................................................................................................................................25U.2 UTILITY - SHADOW CONDUIT....................................................................................................................................................................................26U.3 UTILITY - FIRE ALARM BASE.............................................................................................................................................................................................27
DETAIL TITLE PAGE NUMBER
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1 CITY HALL SQUAREROOM 710BOSTON, MA 02201-2024
PUBLIC WORKS DEPARTMENT(T): 617 635 4968
(E): PWDEngineering@boston.gov
A.1
12" Ø
2'-0"
4'-0"
8"
SEE APPLICABLETYPICAL SECTION
PAPER BOARD FORM
CEMENT CONCRETEENCASEMENT
ROUND CEMENTCONCRETE FILL3" WIDE REFLECTORTAPE (YELLOW)4" GALVANIZED STEEL PIPEFILLED WITH CEMENTCONCRETE (POWDERCOATED BLACK)
6"
BOLLARD - STEELPublic Works DepartmentEngineering Division
SCALE: N.T.S.
DETAIL NO.
A.1
DATE OF ISSUE:SEPTEMBER 2018
ROADWAY DESIGN STANDARDSA.1 BOLLARD - STEEL
4” GALVANIZED STEEL PIPE FILLED WITH CEMENT CONCRETE (POWDER COATED BLACK)
CEMENT CONCRETE ENCASEMENT
PAPER BOARD FORM
3” WIDE REFLECTOR TAPE (YELLOW)
ROUND CONCRETE FILL
DOWNLOADABLE FILES:A.1 BOLLARD - STEEL:CADPDF
DATE OF ISSUE: SEPTEMBER 2018
1 CITY HALL SQUAREROOM 710BOSTON, MA 02201-2024
PUBLIC WORKS DEPARTMENT(T): 617 635 4968
(E): PWDEngineering@boston.gov 3
C.11.5" SURFACE COURSEEXISTING GRANITE CURB TO BE
REMOVED AND RESET4" HIGH EARLY STRENGTHCEMENT CONCRETE BASE
CRUSHED STONE BASE
ROADWAYPAVEMENTSECTION
6"
18"MAX.
18"
6" REVEAL(9" AT CATCH BASINS)*
SIDEWALK
GRAVEL BASE ASREQUIRED
*6" REVEAL TYPICAL. REVEAL MAY VARY FROM 3" TO 9" WITHPWD APPROVAL.
SAWCUT EXIST.PAVEMENT
Public Works DepartmentEngineering Division
SCALE: N.T.S.
DETAIL NO.
CURB - GRANITE RESET C.1
DATE OF ISSUE:DECEMBER 2018
ROADWAY DESIGN STANDARDSC.1 CURB - GRANITE RESETDOWNLOADABLE FILES:C.1 CURB - GRANITE:CADPDF
SIDEWALK
EXISTING GRANITE CURB TO BE REMOVED AND RESET
CRUSHED STONE BASE
1.5” SURFACE COURSE4” HIGH EARLY STRENGTH CEMENT CONCRETE BASE
6” REVEAL (9” AT CATCH BASINS)*
SAWCUT EXISTING PAVEMENT
NOTE: 6” REVEAL TYPICAL. REVEAL MAY VARY FROM 3” - 9” WITH PWD APPROVAL.
ROADWAY PAVEMENT SECTION
GRAVEL BASE AS REQUIRED
DATE OF ISSUE: DECEMBER 2018
1 CITY HALL SQUAREROOM 710BOSTON, MA 02201-2024
PUBLIC WORKS DEPARTMENT(T): 617 635 4968
(E): PWDEngineering@boston.gov 4
C.2
ROADWAY PAVEMENTSECTION
SIDEWALK
GRAVEL BASE ASREQUIRED
HIGH EARLY STRENGTHCONCRETE BASE
GRANITE CURB,TYPE VA4
4" REVEAL
18" MAX.
60°MIN.
CRUSHED STONE BASE
12"
6"
1.5" SURFACECOURSE
Public Works DepartmentEngineering Division
SCALE: N.T.S.
DETAIL NO.
CURB - GRANITE SLOPED C.2
DATE OF ISSUE:DECEMBER 2018
ROADWAY DESIGN STANDARDSC.2 CURB - GRANITE SLOPED
DOWNLOADABLE FILES:C.2 CURB - GRANITE SLOPED:
CADPDF
HIGH EARLY STRENGTH CONCRETE BASE
GRAVEL BASE AS NEEDED
CRUSHED STONE BASE
GRANITE CURB, TYPE VA4 WITH 4” REVEAL
SIDEWALK
ROADWAY PAVEMENT
DATE OF ISSUE: DECEMBER 2018
1.5” SURFACE COURSE
1 CITY HALL SQUAREROOM 710BOSTON, MA 02201-2024
PUBLIC WORKS DEPARTMENT(T): 617 635 4968
(E): PWDEngineering@boston.gov 5
C.3
11" 1"
HIGH EARLY STRENGTHCONCRETE BASE
6" 12"
T-100 GRANITE CURB
MOUNTABLE SURFACE
ROADWAY PAVEMENTSECTION
CRUSHED STONE BASE6" DEPTH 6"
16" ±1"
4" REVEAL
1.5" SURFACE COURSE
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ROADWAY DESIGN STANDARDSC.3 CURB - MOUNTABLE
DOWNLOADABLE FILES:C.3 CURB - MOUNTABLE:
CADPDF
HIGH EARLY STRENGTH CONCRETE BASE
1.5” SURFACE COURSE
HIGH EARLY STRENGTH CONCRETE BASE
CRUSHED STONE BASE
MOUNTABLE SURFACE
T-100 GRANITE CURB WITH 4” REVEAL
ROADWAY PAVEMENT SECTION
DATE OF ISSUE: DECEMBER 2018
1 CITY HALL SQUAREROOM 710BOSTON, MA 02201-2024
PUBLIC WORKS DEPARTMENT(T): 617 635 4968
(E): PWDEngineering@boston.gov 6
C.4
6"
UNDISTURBED SUBGRADEOR COMPACTED SUITABLEBACKFILL
CRUSHEDSTONE BASE
18"
PROPOSED SIDEWALK
6"
GRAVEL BASE
MEETEXIST.GRADES
RESTOREDISTURBED AREA
18"
GRAVEL BACKFILL
GRANITE CURB(TYPE VA4)
6" VARIESROADWAY PAVEMENTSECTION
9" REVEAL(MAX.)
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C.4
ROADWAY DESIGN STANDARDSC.4 CURB - GRANITE CURB AT BACK OF SIDEWALK
9” REVEAL(MAX.)
PROPOSED SIDEWALK
GRANITE CURB (TYPE VA4)
ROADWAY PAVEMENT SECTION
GRAVEL BASE
CRUSHED STONE BASE
GRAVEL BACKFILL
UNDISTURBED SUBGRADE OR COMPACTED SUITABLE BACKFILL
DOWNLOADABLE FILES:C.4 CURB - GRANITE CURB AT BACK OF SIDEWALK:
CADPDF
DATE OF ISSUE: SEPTEMBER 2018
1 CITY HALL SQUAREROOM 710BOSTON, MA 02201-2024
PUBLIC WORKS DEPARTMENT(T): 617 635 4968
(E): PWDEngineering@boston.gov 7
C.5
4" CEMENTCONCRETE BASE
GRANITE BLOCK
CEMENT GROUT JOINTS
SIDEWALK
GU
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LIN
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ROADWAY
SLOPE AS DIRECTED12"±
6"
2" LIP
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ROADWAY DESIGN STANDARDSC.5 CURB - GRANITE BLOCK HIP GUTTER
CEMENT GROUT JOINTS
GRANITE BLOCK
SIDEWALK
GUTTER LINE
SLOPE AS DIRECTED
ROADWAY
4” CEMENT CONCRETE BASE
DOWNLOADABLE FILES:C.5 CURB - GRANITE BLOCK HIP GUTTER:CADPDF
DATE OF ISSUE: SEPTEMBER 2018
1 CITY HALL SQUAREROOM 710BOSTON, MA 02201-2024
PUBLIC WORKS DEPARTMENT(T): 617 635 4968
(E): PWDEngineering@boston.gov 8
D.1
SECTION A-A
PLAN VIEW
A
A
1" LIP
WARP SMOOTH
ROADWAYSURFACE
GRANITE CURB CORNER(TYPE A, 2' RAD.)1" LIP
VARIES (4' MIN.) 3'
4' M
IN.
VAR
IES
(7' M
IN.)
A
A
1.5% (±0.5%)
VARIES(7' MIN.)
SIDEWALK
GRANITE CURB CORNER(TYPE A, 2' RAD.)
GRANITE CURB
EXPANSION JOINT(38" PREFORMEDFILLER) (FOR CEM.CONC. DRIVEWAY)
3'
10' MIN.14' MAX.
4' MIN.
6" CEM. CONC.
6" GRAVEL BASE
Public Works DepartmentEngineering Division
DATE OF ISSUE:AUGUST 2018
SCALE: N.T.S.
DETAIL NO.
DRIVEWAY - RESIDENTIAL D.1
SECTION A-A
PLAN VIEW
A
A
1" LIP
WARP SMOOTH
ROADWAYSURFACE
GRANITE CURB CORNER(TYPE A, 2' RAD.)1" LIP
VARIES (4' MIN.) 3'
4' M
IN.
VAR
IES
(7' M
IN.)
A
A
1.5% (±0.5%)
VARIES(7' MIN.)
SIDEWALK
GRANITE CURB CORNER(TYPE A, 2' RAD.)
GRANITE CURB
EXPANSION JOINT(38" PREFORMEDFILLER) (FOR CEM.CONC. DRIVEWAY)
3'
10' MIN.14' MAX.
4' MIN.
6" CEM. CONC.
6" GRAVEL BASE
Public Works DepartmentEngineering Division
DATE OF ISSUE:AUGUST 2018
SCALE: N.T.S.
DETAIL NO.
DRIVEWAY - RESIDENTIAL D.1
SECTION A-A
PLAN VIEW
A
A
1" LIP
WARP SMOOTH
ROADWAYSURFACE
GRANITE CURB CORNER(TYPE A, 2' RAD.)1" LIP
VARIES (4' MIN.) 3'
4' M
IN.
VAR
IES
(7' M
IN.)
A
A
1.5% (±0.5%)
VARIES(7' MIN.)
SIDEWALK
GRANITE CURB CORNER(TYPE A, 2' RAD.)
GRANITE CURB
EXPANSION JOINT(38" PREFORMEDFILLER) (FOR CEM.CONC. DRIVEWAY)
3'
10' MIN.14' MAX.
4' MIN.
6" CEM. CONC.
6" GRAVEL BASE
Public Works DepartmentEngineering Division
DATE OF ISSUE:AUGUST 2018
SCALE: N.T.S.
DETAIL NO.
DRIVEWAY - RESIDENTIAL D.1
ROADWAY DESIGN STANDARDSD.1 DRIVEWAY - RESIDENTIAL
DOWNLOADABLE FILES:D.1 DRIVEWAY - RESIDENTIAL:CADPDF
NOTE: FOR USE ON SIDEWALK WIDTHS OF 7’ OR GREATER. FOR SIDEWALK WIDTHS LESS THAN 7’ USE DETAIL D.3.
SIDEWALK
EXPANSION JOINT (3/8” PREFORMED FILLER)
(FOR CEMENT CONCRETE)
PLAN
SECTION A-A
1” LIP
GRANITE CURB
GRANITE CURB CORNER (TYPE A, 2’ RADIUS)
DATE OF ISSUE: SEPTEMBER 2018
1 CITY HALL SQUAREROOM 710BOSTON, MA 02201-2024
PUBLIC WORKS DEPARTMENT(T): 617 635 4968
(E): PWDEngineering@boston.gov 9
D.2
SECTION A-A
PLAN VIEW
A
A
1" LIP
ROADWAYSURFACE
CURVED GRANITE CURB
1" LIP
VARIES (4' MIN.) 3'-10"
4' M
IN.
VAR
IES
(7'-1
0" M
IN.)
A
A
VARIES(7'-10" MIN.)
GRANITE CURB CORNERTYPE VA4 - 6' RADIUS
GRANITE CURB
3'-10"
12' MIN.24' MAX.
R = 6'
4' MIN.
1.5% (±0.5%)
SIDEWALK
EXPANSION JOINT(38" PREFORMEDFILLER) (FOR CEM.CONC. DRIVEWAY)
WARP SMOOTH6" CEM. CONC.
6" GRAVEL BASE
ARC LENGTH = 6'-312"
ANGLE = 70°CHORD = 6'-10"
Public Works DepartmentEngineering Division
DATE OF ISSUE:AUGUST 2018
SCALE: N.T.S.
DETAIL NO.
DRIVEWAY - COMMERCIAL D.2
SECTION A-A
PLAN VIEW
A
A
1" LIP
ROADWAYSURFACE
CURVED GRANITE CURB
1" LIP
VARIES (4' MIN.) 3'-10"
4' M
IN.
VAR
IES
(7'-1
0" M
IN.)
A
A
VARIES(7'-10" MIN.)
GRANITE CURB CORNERTYPE VA4 - 6' RADIUS
GRANITE CURB
3'-10"
12' MIN.24' MAX.
R = 6'
4' MIN.
1.5% (±0.5%)
SIDEWALK
EXPANSION JOINT(38" PREFORMEDFILLER) (FOR CEM.CONC. DRIVEWAY)
WARP SMOOTH6" CEM. CONC.
6" GRAVEL BASE
ARC LENGTH = 6'-312"
ANGLE = 70°CHORD = 6'-10"
Public Works DepartmentEngineering Division
DATE OF ISSUE:AUGUST 2018
SCALE: N.T.S.
DETAIL NO.
DRIVEWAY - COMMERCIAL D.2
SECTION A-A
PLAN VIEW
A
A
1" LIP
ROADWAYSURFACE
CURVED GRANITE CURB
1" LIP
VARIES (4' MIN.) 3'-10"
4' M
IN.
VAR
IES
(7'-1
0" M
IN.)
A
A
VARIES(7'-10" MIN.)
GRANITE CURB CORNERTYPE VA4 - 6' RADIUS
GRANITE CURB
3'-10"
12' MIN.24' MAX.
R = 6'
4' MIN.
1.5% (±0.5%)
SIDEWALK
EXPANSION JOINT(38" PREFORMEDFILLER) (FOR CEM.CONC. DRIVEWAY)
WARP SMOOTH6" CEM. CONC.
6" GRAVEL BASE
ARC LENGTH = 6'-312"
ANGLE = 70°CHORD = 6'-10"
Public Works DepartmentEngineering Division
DATE OF ISSUE:AUGUST 2018
SCALE: N.T.S.
DETAIL NO.
DRIVEWAY - COMMERCIAL D.2
SECTION A-A
PLAN VIEW
A
A
1" LIP
ROADWAYSURFACE
CURVED GRANITE CURB
1" LIP
VARIES (4' MIN.) 3'-10"
4' M
IN.
VAR
IES
(7'-1
0" M
IN.)
A
A
VARIES(7'-10" MIN.)
GRANITE CURB CORNERTYPE VA4 - 6' RADIUS
GRANITE CURB
3'-10"
12' MIN.24' MAX.
R = 6'
4' MIN.
1.5% (±0.5%)
SIDEWALK
EXPANSION JOINT(38" PREFORMEDFILLER) (FOR CEM.CONC. DRIVEWAY)
WARP SMOOTH6" CEM. CONC.
6" GRAVEL BASE
ARC LENGTH = 6'-312"
ANGLE = 70°CHORD = 6'-10"
Public Works DepartmentEngineering Division
DATE OF ISSUE:AUGUST 2018
SCALE: N.T.S.
DETAIL NO.
DRIVEWAY - COMMERCIAL D.2
DOWNLOADABLE FILES:D.2 DRIVEWAY - COMMERCIAL:CADPDF
NOTE: THE COMMERCIAL DRIVEWAY DETAIL WITH 6’ RADIUS CURB IS ONLY FOR SIDEWALK WIDTHS GREATER THAN OR EQUAL TO 7’-10”, OTHERWISE 2’ CORNERS ARE TO BE USED. FOR SIDEWALK WIDTHS LESS THAN 7’, USE DETAIL D.3.
ROADWAY DESIGN STANDARDSD.2 DRIVEWAY - COMMERCIAL
SIDEWALK
1” LIP
GRANITE CURB
GRANITE CURB CORNERTYPE VA4 - 6’ RADIUS
PLAN
SECTION A-A
EXPANSION JOINT (3/8” PREFORMED FILLER)
(FOR CEMENT CONCRETE DRIVEWAY)
DATE OF ISSUE: SEPTEMBER 2018
1 CITY HALL SQUAREROOM 710BOSTON, MA 02201-2024
PUBLIC WORKS DEPARTMENT(T): 617 635 4968
(E): PWDEngineering@boston.gov 10
ROADWAY DESIGN STANDARDSD.3 DRIVEWAY - SIDEWALK WIDTHS LESS THAN 7’DOWNLOADABLE FILES:D.3 DRIVEWAY - SIDEWALK WIDTH LESS THAN 7’:CADPDF D
.3
7.5% MAX. 7.5% MAX.
FLUSH
DEPRESSEDGRANITE CURB
(EACH SIDE)
EXPANSION JOINT(EACH SIDE)
GUTTER LINE
VARIES ASREQUIRED TO
MEET MAX SLOPE
REFER TO D.1 ORD.2 FOR ALLOWABLE
WIDTHS
1" LIP
ROADWAYSURFACE
DRIVEWAYSURFACE
SECTION A-A
ROADWAYSURFACE
1" LIP
VARIES (LESS THAN 7')
1.5% (±0.5%)
6" CEM. CONC.
6" GRAVEL BASE
A
A
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FLUSH
DEPRESSEDGRANITE CURB
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EXPANSION JOINT(EACH SIDE)
GUTTER LINE
VARIES ASREQUIRED TO
MEET MAX SLOPE
REFER TO D.1 ORD.2 FOR ALLOWABLE
WIDTHS
1" LIP
ROADWAYSURFACE
DRIVEWAYSURFACE
SECTION A-A
ROADWAYSURFACE
1" LIP
VARIES (LESS THAN 7')
1.5% (±0.5%)
6" CEM. CONC.
6" GRAVEL BASE
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1” LIP
6” GRANITE CURB
7.5% MAX SLOPE
PLAN
SECTION A-A
DATE OF ISSUE: SEPTEMBER 2018
1 CITY HALL SQUAREROOM 710BOSTON, MA 02201-2024
PUBLIC WORKS DEPARTMENT(T): 617 635 4968
(E): PWDEngineering@boston.gov 11
P.1
DOWNLOADABLE FILES:P.1 PAVEMENT SECTION - ARTERIAL ROADWAY: CADPDF
GRANITE CURB(TYPE VA4)
1.5" SUPERPAVE SURFACE COURSE 12.5 (SSC-12.5mm)
1.5" SUPERPAVE INTERMEDIATE COURSE 19.0 (SIC-19.0mm)
4.5" SUPERPAVE BASE COURSE 37.5 (SBC-37.5mm)
3" DENSE GRADED CRUSHED STONE
9" GRAVEL
6" CRUSHED STONE BASE
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ROADWAY DESIGN STANDARDSP.1 PAVEMENT SECTION - ARTERIAL ROADWAY
1.5” SUPERPAVE INTERMEDIATE COURSE 19.0 (SIC-19.0mm)
4.5” SUPERPAVE BASE COURSE37.5 (SBC-37.5mm)
GRANITE CURB(TYPE VA4)
6” CRUSHED STONE BASE
3” DENSE GRADED CRUSHED STONE
9” GRAVEL
1.5” SUPERPAVE SURFACE COURSE 12.5 (SSC-12.5mm)
NOTE: DEPTHS MAY VARY BASED ON PROJECT SPECIFIC LOADING CONDITIONS (ADT, % HEAVY VEHICLES, ETC.)
DATE OF ISSUE: SEPTEMBER 2018
1 CITY HALL SQUAREROOM 710BOSTON, MA 02201-2024
PUBLIC WORKS DEPARTMENT(T): 617 635 4968
(E): PWDEngineering@boston.gov 12
P.2
GRANITE CURB(TYPE VA4)
6" CRUSHED STONE BASE
1.5" SUPERPAVE SURFACE COURSE 9.5(b) (SSC-9.5(b)mm)
1.5" SUPERPAVE INTERMEDIATE COURSE 19.0 (SIC-19.0mm)
2.5" SUPERPAVE BASE COURSE 37.5 (SBC-37.5mm)
3" DENSE GRADED CRUSHED STONE
7" GRAVEL
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DOWNLOADABLE FILES:P.2 PAVEMENT SECTION - RESIDENTIAL ROADWAY: CADPDF
ROADWAY DESIGN STANDARDSP.2 PAVEMENT SECTION - RESIDENTIAL ROADWAY
3” DENSE GRADED CRUSHED STONE
7” GRAVEL
GRANITE CURB(TYPE VA4)
6” CRUSHED STONE BASE
1.5” SUPERPAVE INTERMEDIATE COURSE 19.0 (SIC-19.0mm)
2.5” SUPERPAVE BASE COURSE37.5 (SBC-37.5mm)
1.5” SUPERPAVE SURFACE COURSE 9.5(b) (SSC-9.5(b)mm)
NOTE: DEPTHS MAY VARY BASED ON PROJECT SPECIFIC LOADING CONDITIONS (ADT, % HEAVY VEHICLES, ETC.)
DATE OF ISSUE: SEPTEMBER 2018
1 CITY HALL SQUAREROOM 710BOSTON, MA 02201-2024
PUBLIC WORKS DEPARTMENT(T): 617 635 4968
(E): PWDEngineering@boston.gov 13
P.3
2 14"
2 14"
8"
1"
GRAVEL *
DETAIL OF CORRUGATIONS
CONTRACTION JOINTSEE DETAIL
PAVEMENT
6"
6"
CONTRACTION JOINTS20' O.C. MAX.
PAVEMENT
CONTRACTION JOINTS
BEVEL TO MEETPAVEMENT 1
8"
1 34"
12"
38"
PLAN VIEW CONTRACTION JOINT DETAIL
A A
*THE DEPTH OF THE GRAVEL IS TO BE SUCH THAT ITS BOTTOM LINE MEETSTHE BOTTOM OF THE GRAVEL LINE OF THE CONTIGUOUS PAVEMENT.
6" 6"
SECTION A-A
NOTES:1. CONTRACTION JOINTS ARE TO BE SPACED AT A MAXIMUM OF 20' APART.2. THE JOINTS ARE TO BE SAWED AND LOCATED IN THE DEPRESSIONS OFTHE CORRUGATIONS. SEE CORRUGATION DETAIL.3. END OF CORRUGATED RIDGES TO BE BEVELED.4. SCORED CEMENT CONCRETE TO BE: 5000 PSI - 3/4" - 705 LB/CY.6. TROUGH FLUSH WITH OR ABOVE ADJACENT PAVEMENT FOR DRAINAGE.
BOND BREAKER
TOP OF PAVEMENTHMA TOP COURSEBASE COURSE
GRAVEL*
HMA TOP COURSEBASE COURSE
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*THE DEPTH OF THE GRAVEL IS TO BE SUCH THAT ITS BOTTOM LINE MEETS THE BOTTOM OF THE GRAVEL LINE OF CONTIGUOUS PAVEMENT.
NOTES:1. CONTRACTION JOINTS ARE TO BE SPACED AT A MAXIMUM OF 20’ APART.2. THE JOINTS ARE TO BE SAWED AND LOCATED IN THE DEPRESSIONS OF THE CORRUGATIONS. SEE CORRUGATION DETAIL.3. END OF CORRUGATED RIDGES TO BE BEVELED.4. SCORED CEMENT CONCRETE TO BE: 5000 PSI - 3/4” - 705 LB/CY.6. TROUGH FLUSH WITH OR ABOVE ADJACENT PAVEMENT FOR DRAINAGE. DATE OF ISSUE: SEPTEMBER 2018
ROADWAY DESIGN STANDARDSP.3 PAVEMENT SECTION - SCORED CEMENT CONCRETE
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R.1
DATE OF ISSUE: SEPTEMBER 2018
PERPENDICULAR PEDESTRIAN RAMP DESIGN IS THE SAFEST AND THE PREFERRED TREATMENT.Perpendicular pedestrian ramp designs focus on pedestrian safety, especially considering Boston’s long winters, and high traffic volumes, both pedestrian and vehicular. Additionally, below are a list of reasons to design perpendicular ramps and a list of reasons for regulations that prohibit use of apex ramps.
PERPENDICULAR PEDESTRIAN RAMPS• Are aligned perpendicular to vehicular traffic;• Provide a straight path of travel on tight radius corners;• Are aligned with the crossing direction on tight radius corners;• Are usually positioned within crosswalk; and• Are at the expected crossing location for all pedestrians.
DIAGONAL (APEX) PEDESTRIAN RAMPS• Put pedestrians into a potential area of conflict with motorists who are traveling straight and turning;• Require turning at the top and bottom of the ramp;• Provide no alignment with the proper crossing direction, which is difficult for most people with disabilities;• Make the essential level maneuvering area difficult to achieve at the bottom of the curb ramp; and• Can cause a person with vision impairment to mistake a diagonal curb ramp for a perpendicular curb ramp and unintentionally travel into the middle of the intersection due to the lack of, or ambiguous, audible cues from the surge of traffic.
Sources:1. The State regulations (521CMR 21.2.21) prohibit the installation of “apex” ramps except when there is a significant site constraint (521CMR 21.2.1.1). 2. (https://www.fhwa.dot.gov/environment/bicycle_pedestrian/publications/sidewalk2/sidewalks207.cfm)
FREQUENTLY USED BUILDING CODE LINKS:521 CMR 4.00: APPEAL AND VARIANCE521 CMR 20.00: ACCESSIBLE ROUTE
521 CMR 21.00: CURB CUTS (PEDESTRIAN RAMPS)521 CMR 22.00: WALKWAYS
521 CMR 24.00: RAMPS521 CMR 35.00: TABLES AND SEATING
ROADWAY DESIGN STANDARDSR.1 PEDESTRIAN RAMP - GENERAL INFORMATION
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R.2
1.5%
(±0.
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7.5% MAX. 7.5% MAX.
7.5%
MAX
.
7.5% MAX. 7.5% MAX.
SECTION A - A
GRANITE CURBROADWAY
LEVEL LANDING, 1.5% (±0.5%)SLOPE FOR DRAINAGE
5' PREFERRED(4' MIN.)
A
A
ROADWAY
DETECTABLEWARNING PANEL(DETAIL R.5)
1.5% (±0.5%)
SIDEWALKGRAVEL
RAMP LENGTH
SIDEWALK WIDTH
7.5% MAX
5' PREFERRED(4' MIN.)
6"
6"
1.5%
(±0.
5%)
24"
6.5'
OR
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7.5%
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SECTION A - A
GRANITE CURBROADWAY
LEVEL LANDING, 1.5% (±0.5%)SLOPE FOR DRAINAGE
5' PREFERRED(4' MIN.)
A
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DETECTABLEWARNING PANEL(DETAIL R.5)
1.5% (±0.5%)
SIDEWALKGRAVEL
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SIDEWALK WIDTH
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5' PREFERRED(4' MIN.)
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5’ PREFERRED LEVEL LANDING LENGTH (4’ MIN.) WITH 1.5% (+/- .5%) CROSS SLOPE FOR DRAINAGE
7.5% MAX SLOPE TOWARDS ROADWAY
7.5% MAX SLOPE TOWARDS RAMP
GRANITE CURB
7.5% MAX SLOPE TOWARDS LEVEL LANDING
1.5% (+/- .5%) CROSS SLOPE
1.5% (+/- .5%) CROSS SLOPE
ROADWAY DESIGN STANDARDSR.2 PEDESTRIAN RAMP - SIDEWALK WIDTH 6.5’ AND GREATERDOWNLOADABLE FILES:R.2 PEDESTRIAN RAMP - SIDEWALK WIDTH 6.5’ AND GREATER:CADPDF
REFERENCES LINKS:ADA GUIDELINESAAB GUIDELINES521 CMR 21
DETECTABLE WARNING PANEL (DETAIL R.5)
SECTION A-A
DATE OF ISSUE: SEPTEMBER 2018
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SECTION A - A
ROADWAY
DETECTABLEWARNING PANEL(DETAIL R.5)
SIDEWALKGRAVEL
6"
6" 5.5' PREFERRED (4.5' MIN.)SIDEWALK WIDTH
LEVEL LANDING SLOPEFOR DRAINAGE
GRANITE CURBROADWAY
7.5% MAX. 7.5% MAX.
7.5% MAX. 7.5% MAX.
5' PREFERRED(4.5' MIN.)
A
A
(4.5
' MIN
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1.5%
(±0.
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1.5%
(±0.
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1.5% (±0.5%)
1.5%
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5.5'
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5.5’ PREFERRED, 4.5’ MIN. LEVEL LANDING LENGTH (4’ MIN.) WITH 1.5% (+/- .5%) CROSS SLOPE FOR DRAINAGE
ROADWAY DESIGN STANDARDSR.3 PEDESTRIAN RAMP - SIDEWALK WIDTH LESS THAN 6.5’
DETECTABLE WARNING PANEL (DETAIL R.5)GRANITE CURB
7.5% MAX SLOPE TOWARDS LEVEL LANDING
1.5% (+/- .5%) CROSS SLOPE
1.5% (+/- .5%) CROSS SLOPE
7.5% MAX SLOPE TOWARDS LEVEL LANDING
DOWNLOADABLE FILES:R.3 PEDESTRIAN RAMP - SIDEWALK WIDTH LESS THAN 6.5’:CADPDF
REFERENCES LINKS:ADA GUIDELINESAAB GUIDELINES521 CMR 21
DATE OF ISSUE: SEPTEMBER 2018
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SECTION A - A
ROADWAY
DETECTABLEWARNING PANEL(DETAIL R.5)
SIDEWALKGRAVEL
6"
6"5' PREFERRED (4' MIN.)
LEVEL LANDING SLOPEFOR DRAINAGE
GRANITE CURBROADWAY
1.5%
(±0.
5%)
7.5% MAX. 7.5% MAX.
5' PREFERRED(4' MIN.)
A
A
5' P
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NON-WALKING LANDSCAPEAREA OR FURNISHING ZONE
7.5%
MAX
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RAMP LENGTHVARIES (2.5' MIN.)
7.5% MAX.
1.5%
(±0.
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1.5%
(±0.
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1.5% (±0.5%)
NON-WALKING LANDSCAPEAREA OR FURNISHING ZONE 24"
(4' M
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ROADWAY DESIGN STANDARDSR.4 PEDESTRIAN RAMP - SIDEWALK WITH NON-WALKING AREA
GRANITE CURB
NON-WALKING LANDSCAPE AREA
OR FURNISHING ZONE
7.5% MAX SLOPE TOWARDS LEVEL LANDING
NON-WALKING LANDSCAPE AREA OR FURNISHING ZONE
7.5% MAX SLOPE TOWARDS LEVEL LANDING
DOWNLOADABLE FILES:R.4 PEDESTRIAN RAMP - SIDEWALK WITH NON-WALKING AREA:
CADPDF
REFERENCES LINKS:ADA GUIDELINESAAB GUIDELINES
521 CMR 21
7.5% MAX SLOPE TOWARDS ROADWAY
SECTION A - A
ROADWAY
DETECTABLEWARNING PANEL(DETAIL R.5)
SIDEWALKGRAVEL
6"
6"5' PREFERRED (4' MIN.)
LEVEL LANDING SLOPEFOR DRAINAGE
GRANITE CURBROADWAY
1.5%
(±0.
5%)
7.5% MAX. 7.5% MAX.
5' PREFERRED(4' MIN.)
A
A
5' P
REF
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7.5%
MAX
.
RAMP LENGTHVARIES (2.5' MIN.)
7.5% MAX.
1.5%
(±0.
5%)
1.5%
(±0.
5%)
1.5% (±0.5%)
NON-WALKING LANDSCAPEAREA OR FURNISHING ZONE 24"
(4' M
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SECTION A-A
DETECTABLE WARNING PANEL (DETAIL R.5)
5’ PREFERRED LEVEL LANDING LENGTH (4’ MIN.) WITH 1.5% (+/- .5%) CROSS SLOPE FOR DRAINAGE
1.5% (+/- .5%) CROSS SLOPE
1.5% (+/- .5%) CROSS SLOPE
DATE OF ISSUE: SEPTEMBER 2018
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R.5
NOTES:
1. DETECTABLE WARNING PANELS SHALL BE PERMANENTLY APPLIED TO THECURB RAMP.
2. DETECTABLE WARNING PANELS SHALL BE PALE YELLOW IN COLOR,CONFORMING TO FEDERAL NO. 23594, UNLESS OTHERWISE SPECIFIED BYPWD.
3. DETECTABLE WARNING PANELS SHALL BE COMPOSITE.4. DETECTABLE WARNING PANELS SHALL BE INSTALLED PER THE
MANUFACTURER'S RECOMMENDATIONS.
DETAIL OF DETECTABLE WARNING PANEL
1.6" - 2.4"0.65" MIN.
1.6" - 2.4"
0.65" MIN.AA
SECTION A-A
0.2"6" CEMENT CONCRETE
0.9" - 1.4"
50% TO 60% OFBASE DIAMETER
Public Works DepartmentEngineering Division
DATE OF ISSUE:MAY 2018
SCALE: N.T.S.
DETAIL NO.PEDESTRIAN RAMP - DETECTABLE
WARNING PANEL R.5
NOTES:
1. DETECTABLE WARNING PANELS SHALL BE PERMANENTLY APPLIED TO THECURB RAMP.
2. DETECTABLE WARNING PANELS SHALL BE PALE YELLOW IN COLOR,CONFORMING TO FEDERAL NO. 23594, UNLESS OTHERWISE SPECIFIED BYPWD.
3. DETECTABLE WARNING PANELS SHALL BE COMPOSITE.4. DETECTABLE WARNING PANELS SHALL BE INSTALLED PER THE
MANUFACTURER'S RECOMMENDATIONS.
DETAIL OF DETECTABLE WARNING PANEL
1.6" - 2.4"0.65" MIN.
1.6" - 2.4"
0.65" MIN.AA
SECTION A-A
0.2"6" CEMENT CONCRETE
0.9" - 1.4"
50% TO 60% OFBASE DIAMETER
Public Works DepartmentEngineering Division
DATE OF ISSUE:MAY 2018
SCALE: N.T.S.
DETAIL NO.PEDESTRIAN RAMP - DETECTABLE
WARNING PANEL R.5
NOTES:
1. DETECTABLE WARNING PANELS SHALL BE PERMANENTLY APPLIED TO THECURB RAMP.
2. DETECTABLE WARNING PANELS SHALL BE PALE YELLOW IN COLOR,CONFORMING TO FEDERAL NO. 23594, UNLESS OTHERWISE SPECIFIED BYPWD.
3. DETECTABLE WARNING PANELS SHALL BE COMPOSITE.4. DETECTABLE WARNING PANELS SHALL BE INSTALLED PER THE
MANUFACTURER'S RECOMMENDATIONS.
DETAIL OF DETECTABLE WARNING PANEL
1.6" - 2.4"0.65" MIN.
1.6" - 2.4"
0.65" MIN.AA
SECTION A-A
0.2"6" CEMENT CONCRETE
0.9" - 1.4"
50% TO 60% OFBASE DIAMETER
Public Works DepartmentEngineering Division
DATE OF ISSUE:MAY 2018
SCALE: N.T.S.
DETAIL NO.PEDESTRIAN RAMP - DETECTABLE
WARNING PANEL R.5
ROADWAY DESIGN STANDARDSR.5 PEDESTRIAN RAMP - DETECTABLE WARNING PANEL
DOWNLOADABLE FILES:R.5 PEDESTRIAN RAMP - DETECTABLE WARNING PANEL:CADPDF
DATE OF ISSUE: SEPTEMBER 2018
1 CITY HALL SQUAREROOM 710BOSTON, MA 02201-2024
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MEET EXIST.
STR
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1.5% (±0.5%)
SIDEWALK, PEDESTRIANRAMP, OR DRIVEWAY*SEE ROADWAY
TYPICAL SECTION
GRANITE CURB
6" CEMENT CONCRETE(UNREINFORCED)6" COMPACTEDGRAVEL BASE (MIN.)
ROADWAYSURFACE
*DETAIL DEPICTS SIDEWALK CONDITION ALTHOUGH THE SAME CROSSSECTION SHALL BE USED FOR CURB RAMPS OR DRIVEWAYS.
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DOWNLOADABLE FILES:S.1 SIDEWALK - CONCRETE:CADPDF
ROADWAY DESIGN STANDARDSS.1 SIDEWALK - CONCRETE
6” CEMENT CONCRETE
(UNREINFORCED)SEE ROADWAY TYPICAL SECTION GRANITE CURB
6” COMPACTED GRAVEL BASE (MIN.)
*NOTE: DETAIL DEPICTS SIDEWALK CONDITION ALTHOUGH THE SAME CROSS SECTION SHALL BE USED FOR CURB RAMPS OR DRIVEWAYS.
DATE OF ISSUE: SEPTEMBER 2018
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S.2
GRANITE CURB
COMPACTED SUB-GRADE
COMPACTED GRAVEL BASE
2.5" INTERMEDIATE COURSE
1.5" SURFACE COURSE
34" SAND-ASPHALTSETTING BED
MASTIC ADHESIVE
WIRE CUT BRICK PAVERS
HAND TIGHT JOINTS SWEPTWITH POLYMERIC SAND
6" MIN.
ROADWAY SURFACE
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ROADWAY DESIGN STANDARDSS.2 SIDEWALK - BRICK
ROADWAY SURFACE
GRANITE CURB
COMPACTED GRAVEL BASE (6” MINIMUM)
COMPACTED SUBGRADE
WIRE CUT BRICK PAVERS
HAND TIGHT JOINTS SWEPT WITH POLYMERIC SAND
MASTIC ADHESIVE
1.5” SURFACE COURSE
2.5” INTERMEDIATE COURSE
3/4” SAND ASPHALT SETTING BED
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SIDEWALKSEE ROADWAYTYPICAL SECTION
GRANITE CURB
1.5" SURFACE COURSE
6" COMPACTEDGRAVEL BASE (MIN.)
ROADWAYSURFACE
1.5" INTERMEDIATE COURSE
WARP SMOOTH
ROADWAYSURFACE
1" LIP
VARIES (4' MIN.)3'
1.5% (±0.5%)
2" SURFACE COURSE
6" GRAVEL BASE 2" INTERMEDIATE COURSE
TYPICAL DRIVEWAY SECTION
TYPICAL SIDEWALK SECTION
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SIDEWALKSEE ROADWAYTYPICAL SECTION
GRANITE CURB
1.5" SURFACE COURSE
6" COMPACTEDGRAVEL BASE (MIN.)
ROADWAYSURFACE
1.5" INTERMEDIATE COURSE
WARP SMOOTH
ROADWAYSURFACE
1" LIP
VARIES (4' MIN.)3'
1.5% (±0.5%)
2" SURFACE COURSE
6" GRAVEL BASE 2" INTERMEDIATE COURSE
TYPICAL DRIVEWAY SECTION
TYPICAL SIDEWALK SECTION
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DOWNLOADABLE FILES:S.3 SIDEWALK + DRIVEWAY - HMA
CADPDF
ROADWAY DESIGN STANDARDSS.3 SIDEWALK + DRIVEWAY - HMA
ROADWAY SURFACE
GRANITE CURB
1“ LIP
ROADWAY SURFACE
6” COMPACTED GRAVEL BASE (MIN.)
6” GRAVEL BASE
1.5” INTERMEDIATE COURSE
1.5” SURFACE COURSE
2” INTERMEDIATE COURSE
2” SURFACE COURSE
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S.4
CRUSHEDSTONE BASE(#57 STONE)
#2 STONENON-WOVEN GEOTEXTILEFABRIC
ROADWAY SURFACE
18" MIN.*
6"
13 1/2"
2"
6"
6"
6"
SIDEWALK SURFACE
2" BEDDING COURSE#8 STONE
PERMEABLE PAVERS(AS SPECIFIED)
GRANITE CURB
*PERMEABLE PAVERS SHALL BE INSTALLED WITH A MINIMUM WIDTH OF 18"FOR SIDEWALKS UP TO 7'. FOR SIDEWALKS OVER 7', PERMEABLE PAVERWIDTH SHALL BE 1' PER 5' OF SIDEWALK.
NOTE:
DEPENDING ON SOIL CONDITIONS AND GROUNDWATER, IT MAY BEAPPROPRIATE TO PROVIDE AN UNDERDRAIN BEHIND THE CURB AND WITHINTHE CRUSHED STONE BASE. UNDERDRAIN MAY BE REQUIRED IN SOILS WITHLOW INFILTRATION RATES. IF USED, THEY MUST BE INSTALLED ABOVE THEGROUNDWATER ELEVATION.
ALL PERMEABLE SYSTEMS SHALL BE MAINTAINED AS PER MANUFACTURERRECOMMENDATIONS.
Public Works DepartmentEngineering Division
DATE OF ISSUE:JUNE 2018
SCALE: N.T.S.
DETAIL NO.
SIDEWALK - PERMEABLE PAVER S.4
CRUSHEDSTONE BASE(#57 STONE)
#2 STONENON-WOVEN GEOTEXTILEFABRIC
ROADWAY SURFACE
18" MIN.*
6"
13 1/2"
2"
6"
6"
6"
SIDEWALK SURFACE
2" BEDDING COURSE#8 STONE
PERMEABLE PAVERS(AS SPECIFIED)
GRANITE CURB
*PERMEABLE PAVERS SHALL BE INSTALLED WITH A MINIMUM WIDTH OF 18"FOR SIDEWALKS UP TO 7'. FOR SIDEWALKS OVER 7', PERMEABLE PAVERWIDTH SHALL BE 1' PER 5' OF SIDEWALK.
NOTE:
DEPENDING ON SOIL CONDITIONS AND GROUNDWATER, IT MAY BEAPPROPRIATE TO PROVIDE AN UNDERDRAIN BEHIND THE CURB AND WITHINTHE CRUSHED STONE BASE. UNDERDRAIN MAY BE REQUIRED IN SOILS WITHLOW INFILTRATION RATES. IF USED, THEY MUST BE INSTALLED ABOVE THEGROUNDWATER ELEVATION.
ALL PERMEABLE SYSTEMS SHALL BE MAINTAINED AS PER MANUFACTURERRECOMMENDATIONS.
Public Works DepartmentEngineering Division
DATE OF ISSUE:JUNE 2018
SCALE: N.T.S.
DETAIL NO.
SIDEWALK - PERMEABLE PAVER S.4
DOWNLOADABLE FILES:S.4 SIDEWALK - PERMEABLE PAVER:CADPDF
PERMEABLE PAVERS (AS SPECIFIED)
GRANITE CURB
2” BEDDING COURSE #8 STONE
NON-WOVEN GEOTEXTILE FABRIC
CRUSHED STONE BASE (#57 STONE)
#2 STONE
ROADWAY DESIGN STANDARDSS.4 SIDEWALK - PERMEABLE PAVER
DATE OF ISSUE: SEPTEMBER 2018
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S.5
DOWNLOADABLE FILES:S.5 SIDEWALK - TREE PIT (4’x6’):CADPDF
NOTE: 4’x6’ TREE PITS ARE THE PREFERRED STANDARD. FOR SIDEWALK WIDTHS BETWEEN 9.5’ AND 7.5’ USE 3’X8’ TREE PIT AS SHOWN ON S.6
60" M
INIM
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GRANITE CURB
A
A
NOTE:
1. TREE PIT TO BE A MINIMUM OF 24 SQUARE FEET.2. PROVIDE 10' LONG X 3" SQ WOODEN STAKES EQUALLY SPACED, 3 PER
TREE, 7' EXPOSED. DRIVE STAKES AT AN ANGLE AND DRAW VERTICALWITH NYLON TREE TIE.
3. CONTRACTOR SHALL PERFORM PERCOLATION TEST ON SUB-GRADEPRIOR TO PLANTING. IF TEST IS NOT PASSING, CONTRACTOR SHALLADJUST SUB-GRADE ACCORDINGLY.
3" MULCH
SECTION A-A
SIDEWALKGRANITE CURB
PLANTING SOIL
4'TREE TO BE INSTALLEDPLUM AND CENTERED IN PIT
FORM AND ADJUSTSUBSOIL PEDESTAL
TO SET ROOT FLAREAT PROPER GRADE
6'
SIDEWALK
9.5'
MIN
.(IN
CLU
DIN
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UR
B)
ROADWAY SURFACE
Public Works DepartmentEngineering Division
DATE OF ISSUE:AUGUST 2018
SCALE: N.T.S.
DETAIL NO.
SIDEWALK - TREE PIT (4'X6') S.5
60" M
INIM
UM
GRANITE CURB
A
A
NOTE:
1. TREE PIT TO BE A MINIMUM OF 24 SQUARE FEET.2. PROVIDE 10' LONG X 3" SQ WOODEN STAKES EQUALLY SPACED, 3 PER
TREE, 7' EXPOSED. DRIVE STAKES AT AN ANGLE AND DRAW VERTICALWITH NYLON TREE TIE.
3. CONTRACTOR SHALL PERFORM PERCOLATION TEST ON SUB-GRADEPRIOR TO PLANTING. IF TEST IS NOT PASSING, CONTRACTOR SHALLADJUST SUB-GRADE ACCORDINGLY.
3" MULCH
SECTION A-A
SIDEWALKGRANITE CURB
PLANTING SOIL
4'TREE TO BE INSTALLEDPLUM AND CENTERED IN PIT
FORM AND ADJUSTSUBSOIL PEDESTAL
TO SET ROOT FLAREAT PROPER GRADE
6'
SIDEWALK
9.5'
MIN
.(IN
CLU
DIN
G C
UR
B)
ROADWAY SURFACE
Public Works DepartmentEngineering Division
DATE OF ISSUE:AUGUST 2018
SCALE: N.T.S.
DETAIL NO.
SIDEWALK - TREE PIT (4'X6') S.5
ROADWAY DESIGN STANDARDSS.5 SIDEWALK - TREE PIT (4’x6’)
PLANTING SOIL
3” MULCH
TREE TO BE INSTALLED PLUM AND CENTERED IN PIT
FORM AND ADJUST SUBSOIL PEDESTAL TO SET ROOT FLARE AT PROPER GRADE
GRANITE CURB
SIDEWALK
DATE OF ISSUE: SEPTEMBER 2018
1 CITY HALL SQUAREROOM 710BOSTON, MA 02201-2024
PUBLIC WORKS DEPARTMENT(T): 617 635 4968
(E): PWDEngineering@boston.gov 24
S.6
60" P
RE
FER
RE
D48
" MIN
IMU
M*
NOTE:
1. TREE PIT TO BE A MINIMUM OF 24 SQUARE FEET.2. PROVIDE 10' LONG X 3" SQ WOODEN STAKES EQUALLY SPACED, 3 PER
TREE, 7' EXPOSED. DRIVE STAKES AT AN ANGLE AND DRAW VERTICALWITH NYLON TREE TIE.
3. CONTRACTOR SHALL PERFORM PERCOLATION TEST ON SUB-GRADEPRIOR TO PLANTING. IF TEST IS NOT PASSING, CONTRACTOR SHALLADJUST SUB-GRADE ACCORDINGLY.
GRANITE CURB
*WITH CITY APPROVAL
3" MULCH
SECTION A-A
SIDEWALK
A
A
GRANITE CURB
PLANTING SOIL
8'
3'TREE TO BE INSTALLEDPLUM AND CENTERED IN PIT
FORM AND ADJUSTSUBSOIL PEDESTAL
TO SET ROOT FLAREAT PROPER GRADE
SIDEWALK
7.5'
MIN
.(IN
CLU
DIN
G C
UR
B)
ROADWAY SURFACE
Public Works DepartmentEngineering Division
DATE OF ISSUE:AUGUST 2018
SCALE: N.T.S.
DETAIL NO.
SIDEWALK - TREE PIT (3'X8') S.660
" PR
EFE
RR
ED
48" M
INIM
UM
*
NOTE:
1. TREE PIT TO BE A MINIMUM OF 24 SQUARE FEET.2. PROVIDE 10' LONG X 3" SQ WOODEN STAKES EQUALLY SPACED, 3 PER
TREE, 7' EXPOSED. DRIVE STAKES AT AN ANGLE AND DRAW VERTICALWITH NYLON TREE TIE.
3. CONTRACTOR SHALL PERFORM PERCOLATION TEST ON SUB-GRADEPRIOR TO PLANTING. IF TEST IS NOT PASSING, CONTRACTOR SHALLADJUST SUB-GRADE ACCORDINGLY.
GRANITE CURB
*WITH CITY APPROVAL
3" MULCH
SECTION A-A
SIDEWALK
A
A
GRANITE CURB
PLANTING SOIL
8'
3'TREE TO BE INSTALLEDPLUM AND CENTERED IN PIT
FORM AND ADJUSTSUBSOIL PEDESTAL
TO SET ROOT FLAREAT PROPER GRADE
SIDEWALK
7.5'
MIN
.(IN
CLU
DIN
G C
UR
B)
ROADWAY SURFACE
Public Works DepartmentEngineering Division
DATE OF ISSUE:AUGUST 2018
SCALE: N.T.S.
DETAIL NO.
SIDEWALK - TREE PIT (3'X8') S.6
ROADWAY DESIGN STANDARDSS.6 SIDEWALK - TREE PIT (3’x8’)DOWNLOADABLE FILES:S.6 SIDEWALK - TREE PIT (3’x8’):CADPDF
NOTE: 3’x8’ TREE PITS ARE FOR SIDEWALK WIDTHS BETWEEN 9.5’ AND 7.5’, 4’x6’ ARE THE PREFERRED STANDARD AS SHOWN ON DETAIL S.5.
PLANTING SOIL
3” MULCH
TREE TO BE INSTALLED PLUM AND CENTERED IN PIT
FORM AND ADJUST SUBSOIL PEDESTAL TO SET ROOT FLARE AT PROPER GRADE
GRANITE CURB
SIDEWALK
DATE OF ISSUE: SEPTEMBER 2018
U.1
1 CITY HALL SQUAREROOM 710BOSTON, MA 02201-2024
PUBLIC WORKS DEPARTMENT(T): 617 635 4968
(E): PWDEngineering@boston.gov 25
NOTE: PVC CONDUIT SHALL BE ENCASED IN 12INCHES OF CEMENT CONCRETE BASE COURSE.SAND WILL NOT BE REQUIRED AT THESELOCATIONS. CONCRETE WILL BE PAID FORUNDER ITEM 431.1, HIGH EARLY STRENGTHCEMENT CONCRETE BASE COURSE.
12"
12"
CEMENT CONCRETE BASE COURSE
PVC CONDUIT
Public Works DepartmentEngineering Division
DATE OF ISSUE:AUGUST 2018
SCALE: N.T.S.
DETAIL NO.UTILITY - CONCRETE ENCASED
CONDUIT U.1
ROADWAY DESIGN STANDARDSU.1 UTILITY - CONCRETE ENCASED CONDUITDOWNLOADABLE FILES:U.1 UTILITY - CONCRETE ENCASED CONDUITCADPDF
DATE OF ISSUE: SEPTEMBER 2018
1 CITY HALL SQUAREROOM 710BOSTON, MA 02201-2024
PUBLIC WORKS DEPARTMENT(T): 617 635 4968
(E): PWDEngineering@boston.gov 26
ROADWAY DESIGN STANDARDSU.2 UTILITY - SHADOW CONDUIT
TEMPORARY PAVEMENTRESTORATION
PERMANENT PAVEMENTRESTORATION
24" (MIN.)
PROPOSED 1 - 4" CITYSHADOW QUAD DUCT
6"
O.D. OF PIPE +24"
BELOW GRADEEXCAVATION OF
UNSUITABLE MATERIAL
PIPE BEDDING (6" MIN.)OF GRAVEL
GRAVELPLACED 8" (MAX.) LIFTS
EXCAVATION ANDSTONES LARGER THAN8" SHALL BE DISPOSED
OF AND REPLACEDWITH APPROVED
EXCAVATED MATERIALOR GRAVEL
EXISTING ROADWAYSURFACE
PROP. 3" HMA (2)1-1/2" LAYERS
NOTE: CITY SHADOW CONDUIT TO BE ROPED AND TAGGED.
ROADWAYPAVEMENTSECTION
Public Works DepartmentEngineering Division
DATE OF ISSUE:MAY 2018
SCALE: N.T.S.
DETAIL NO.
UTILITY - SHADOW CONDUIT U.2
TEMPORARY PAVEMENTRESTORATION
PERMANENT PAVEMENTRESTORATION
24" (MIN.)
PROPOSED 1 - 4" CITYSHADOW QUAD DUCT
6"
O.D. OF PIPE +24"
BELOW GRADEEXCAVATION OF
UNSUITABLE MATERIAL
PIPE BEDDING (6" MIN.)OF GRAVEL
GRAVELPLACED 8" (MAX.) LIFTS
EXCAVATION ANDSTONES LARGER THAN8" SHALL BE DISPOSED
OF AND REPLACEDWITH APPROVED
EXCAVATED MATERIALOR GRAVEL
EXISTING ROADWAYSURFACE
PROP. 3" HMA (2)1-1/2" LAYERS
NOTE: CITY SHADOW CONDUIT TO BE ROPED AND TAGGED.
ROADWAYPAVEMENTSECTION
Public Works DepartmentEngineering Division
DATE OF ISSUE:MAY 2018
SCALE: N.T.S.
DETAIL NO.
UTILITY - SHADOW CONDUIT U.2
DOWNLOADABLE FILES:U.2 UTILITY - SHADOW CONDUIT:CADPDF
U.2
SECTION
DATE OF ISSUE: SEPTEMBER 2018
1 CITY HALL SQUAREROOM 710BOSTON, MA 02201-2024
PUBLIC WORKS DEPARTMENT(T): 617 635 4968
(E): PWDEngineering@boston.gov 27
ROADWAY DESIGN STANDARDSU.3 UTILITY - FIRE ALARM BASE
4" PVC PIPE
ELEVATION
PLAN
CENTERLINE
CENTERLINE BOLTS
4" PVC PIPE FORFIRE SIGNAL CABLES
2" PVC PIPE FORLIGHTING SERVICE ORGAS SERVICE PIPE
13 12"
CONDULETCOVER
MIDDLE SECTION
FACE OFCURB
ROADWAYSURFACE
PVC CONDUITS TO BE2" BELOW SUB-BASE
PROPOSEDSIDEWALKGRADE
1"
36"
25"
13 12"
11 14"
2" PVC PIPE
4' MIN. PATHOF TRAVEL
Public Works DepartmentEngineering Division
DATE OF ISSUE:MAY 2018
SCALE: N.T.S.
DETAIL NO.
UTILITY - FIRE ALARM BASE U.3
4" PVC PIPE
ELEVATION
PLAN
CENTERLINE
CENTERLINE BOLTS
4" PVC PIPE FORFIRE SIGNAL CABLES
2" PVC PIPE FORLIGHTING SERVICE ORGAS SERVICE PIPE
13 12"
CONDULETCOVER
MIDDLE SECTION
FACE OFCURB
ROADWAYSURFACE
PVC CONDUITS TO BE2" BELOW SUB-BASE
PROPOSEDSIDEWALKGRADE
1"
36"
25"
13 12"
11 14"
2" PVC PIPE
4' MIN. PATHOF TRAVEL
Public Works DepartmentEngineering Division
DATE OF ISSUE:MAY 2018
SCALE: N.T.S.
DETAIL NO.
UTILITY - FIRE ALARM BASE U.3
DOWNLOADABLE FILES:U.3 UTILITY - FIRE ALARM BASE:CADPDF
U.3PLAN
SECTION
DATE OF ISSUE: SEPTEMBER 2018
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