Appendix C.4 Drainage Structural Drawingsi

Appendix C.4: Drainage Structural Drawings i

PREFACEPart C of the Sierra Leone Manual for Low Volume Roads addresses drainage-related aspects of the design of LVRs. These include the calculation of flows in watercourses, discharge rates, the location and design of appropriate drainage structures, associated road side stabilisation measures, and provision for the anticipated effects of climate change. Tailored specifically for conditions in Sierra Leone, it includes worked examples to help the reader understand the detailed application of the methods and practices described.

This Appendix to the Manual includes Standard Drawings for typical drainage structures.

Manual Updates

All suggestions to improve the manual or the Standard Drawings should be made in writing to the Sierra Leone Roads Authority, which is responsible for issuing periodic updated versions of the Manual.

Ing. Mr. Amara Halim Jambai Kanneh

Director General

Sierra Leone Roads Authority

Appendix C.4: Drainage Structural Drawings ii

Drainage Structural DrawingsAppendix to Part C of the Manual for Low Volume Roads presents general arrangement drawings and specifications for typical drainage structures. The standard designs vary depending on the size of structures required to accommodate the design discharge. The design details may need to be adpated to suit the site conditions.

Details are provided for the following standard structures:

Standard Drawing 1: Single Pipe Culvert (600 and 900 diam) General Arrangement ...................................................................................................................................................................................................................................................... 1

Standard Drawing 2: Single Pipe Culvert (600 and 900 diam) Reinforcement Layout ..................................................................................................................................................................................................................................................... 2

Standard Drawing 3: Single Pipe Culvert (1200 and 1500 diam) General Arrangement .................................................................................................................................................................................................................................................. 3

Standard Drawing 4: Single Pipe Culvert (1200 and 1500 diam) Reinforcement Layout ................................................................................................................................................................................................................................................. 4

Standard Drawing 5: Single Pipe Culvert Bar Bending Schedules .................................................................................................................................................................................................................................................................................. 5

Standard Drawing 6: Double Pipe Culvert (600 and 900 diam) - General Arrangement .................................................................................................................................................................................................................................................. 6

Standard Drawing 7: Double Pipe Culvert (600 and 900 diam) - Reinforcement Layout ................................................................................................................................................................................................................................................. 7

Standard Drawing 8: Double Pipe Culvert (1200 and 1500 diam) - General Arrangement .............................................................................................................................................................................................................................................. 8

Standard Drawing 9: Double Pipe Culvert (1200 and 1500 diam) - Reinforcement Layout ............................................................................................................................................................................................................................................. 9

Standard Drawing 10: Single Box Culvert - General Arrangement .................................................................................................................................................................................................................................................................................. 10

Standard Drawing 11: Single Box Culvert - Reinforcement Layout ................................................................................................................................................................................................................................................................................. 11

Standard Drawing 12: Double Box Culvert - General Arrangement ................................................................................................................................................................................................................................................................................. 12

Standard Drawing 13: Double Box Culvert - Reinforcement Layout ................................................................................................................................................................................................................................................................................ 13

Standard Drawing 14: Box Culvert - Bar Bending Schedules .......................................................................................................................................................................................................................................................................................... 14

Standard Drawing 15: Mass Concrete Relief Culvert (700 x 900) - General Layout ........................................................................................................................................................................................................................................................ 15

Standard Drawing 16: Mass Concrete Relief Culvert (700 x 900) – Reinforcement Layout ............................................................................................................................................................................................................................................. 16

Standard Drawing 17: Mass Concrete Relief Culvert (900 x 1200) - General Layout ...................................................................................................................................................................................................................................................... 17

Standard Drawing 18: Mass Concrete Relief Culvert (900 x 1200) – Reinforcement Layout ........................................................................................................................................................................................................................................... 18

Standard Drawing 19: Vented Drift – General Arrangement ............................................................................................................................................................................................................................................................................................. 19

Standard Drawing 20: Vented Drift – Reinforcement Layout ............................................................................................................................................................................................................................................................................................ 20

Standard Drawing 21: Vented Drift – Bar Bending Schedule ........................................................................................................................................................................................................................................................................................... 21

Appendix C.4: Drainage Structural Drawings 1

Single Pipe Culvert (600 and 900 diam) General Arrangement

PROJECT: NOTES: 1: All dimensions are in millimeters unless otherwise specified.2: Conversion factor. 1mm - 0.03937 Inches.3: Standard pipe length: 1.0 metre.4: Concrete cylinder strength in 28 days shall be: 21 MPa.5: Pipe joint sealer shall be cement mortar.6: OD = Outside Diameter = Inside Dia +2*H.7: The Engineer shall specify the length (L) of the culvert structure.8. Provide 20mm x 20mm chamfer to all exposed concrete edges.

DATE: ........./........./......... DRAWING Nº: ................

TITLE: Typical Structures Drawing Single Pipe Culvert: 600mm & 900mm general arrangement

DRAWN BYDESIGNED BYCHECKED BY

SCALE: NTS

DIMENSIONS: mm

SHEET Nº:

GOVERNMENT OF THE REPUBLIC OF SIERRA LEONESierra Leone Roads AuthorityPMB 1324 KissyFreetown, Sierra Leone APPROVED BY

Mass concrete for cut-off wall and apron

A A

Plan view of culvert installation, headwall & wingwall

Section B-B cross section of culvert pipe installation Detail of pipe jointEnd elevation showing headwall and wing walls

CLRoad level

Section A-A longitudinal section of culvert structure

Pipe culvertring

Compacted gravel 10cm

Mass concrete 15cm

CLB

B

Road surface materialBackfill

Reinforced concreteor stone masonry

500

Mass concrete40cm long at joint

Concrete in-situmortar collar

Pipe joint sealer400

50

Mass concrete15cm

OD 5001000500

OD+3400

1000 200 200

OD+800

Ø

500

Hw

Hf

200

200

300

Ø

45°

Lw=1200250 250

Lw

OD

+240

0

200

250200

ØHw

150

200200

200

Mass concrete

200

Culvertsize

(InsideØ)

600

900

OD L Hw Headwall thickness Backfill

Concrete Stonemasonry

Minimumcover

Material

Approvedgravel

Approvedgravel

450

300 600

720

1080 Varies

Varies 300800

1100

200 (top)250 (base)

200 (top)250 (base)


Single Pipe Culvert (600 and 900 diam) Reinforcement Layout

NOTES: 1: All dimensions are in millimeters unless otherwise specified.2: Conversion factor. 1mm - 0.03937 Inches.3: Standard pipe length: 1.0 metre.4: Concrete cylinder strength in 28 days shall be: 21 MPa.5: Reinforcement shall be structural grade. deformed bar (DB) with minimum yield strength 420 MPa.6: Pipe joint sealer shall be cement mortar.7: OD = Outside Diameter = Inside Dia +2*H.8: The Engineer shall specify the length (L) of the culvert structure.9. Provide 20mm x 20mm chamfer to all exposed concrete edges.

PROJECT: DATE: ........./........./......... DRAWING Nº: ................

TITLE: Typical Structures Drawing Single Pipe Culvert: 600 & 900 reinforcement layout


SCALE: NTS

DIMENSIONS: mm

SHEET Nº:


CL of road

Reinforcedconcrete headwalland wingwall

Mass concrete forcut-off wall and apron

B2

B2

Reinforcement details for head wall and wing wall

Head wall and wing wall reinforcement details

H2-DB10@225c/c& H3-DB10@225c/c

H1-DB12@225c/cH4-DB12@225c/c

W5-DB10

W4-DB10@225c/c

W3-DB12@225c/c

W2-DB12@225c/c

W1-DB10@225c/cW1-DB10@225c/c

W2-DB12@225c/c

W4-DB10@225c/c

W3-DB12@225c/c

Section B2-B2: Reinforcement details for head wall

ApronPipe invert level

Pipe culvert ring


H4-DB12@225c/c

H3-DB10@225c/c

H2-DB10@225c/c

H1-DB12@225c/c

Cut-off wall

Mass concrete 15cm

200

250

500

150

1000

45° 1200

250

W5-DB10

200

200

Culvertsize

(InsideØ)

600

900



Minimumcover

Material

Approvedgravel

Approvedgravel

450

300 600

720

1080 Varies

Varies 300800

1100

200 (top)250 (base)

200 (top)250 (base)


Single Pipe Culvert (1200 and 1500 diam) General Arrangement

NOTES: 1: All dimensions are in millimeters unless otherwise specified.2: Conversion factor. 1mm - 0.03937 Inches.3: Standard pipe length: 1.0 metre.4: Concrete cylinder strength in 28 days shall be: 21 MPa.5: Pipe joint sealer shall be cement mortar.6: OD = Outside Diameter = Inside Dia +2*H7: The Engineer shall specify the length (L) of the culvert structure.8. Provide 20mm x 20mm chamfer to all exposed concrete edges.


TITLE: Typical Structures Drawing Single Pipe Culvert: 1200 & 1500 general arrangement


SCALE: NTS

DIMENSIONS: mm

SHEET Nº:



A A





Extendedapron

200

OD

+340

0

300

Pipe culvertring


Mass concrete 15cm

CLB

B

Road surface materialBackfill

Reinforced concreteor stone masonry

500

Mass concrete15cm

250

300200

Ø Hw

150

2500 minimum

200

300

Ø

CLRoad level

OD 5001500500

OD+3400

1500 200 200

OD+800

Ø

500

Hw

Hf

200

45°


Pipe joint sealer200400

50200

Mass concrete

200

Lw=1200

Inlet

Culvertsize

(InsideØ)

1200

1500



Minimumcover

Material

Approved gravel

Approved gravel

700

300 800

1440

1800 Varies

Varies 3001400

1700

250 (top)300 (base)

250 (top)300 (base)


Single Pipe Culvert (1200 and 1500 diam) Reinforcement Layout

NOTES: 1: All dimensions are in millimeters unless otherwise specified.2: Conversion factor. 1mm - 0.03937 Inches.3: Standard pipe length: 1.0 metre.4: Concrete cylinder strength in 28 days shall be: 21 MPa5: Reinforcement shall be structural grade deformed bar (DB) with minimum yield strength 420 MPa.6: Pipe joint sealer shall be cement mortar.7: OD = Outside Diameter = Inside Dia +2*H.8: The Engineer shall specify the length (L) of the culvert structure.9. Provide 20mm x 20mm chamfer to all exposed concrete edges.


TITLE: Typical Structures Drawing Single Pipe Culvert: 1200 & 1500 reinforcement layout


SCALE: NTS

DIMENSIONS: mm

SHEET Nº:


B2


Head wall and wing wall reinforcment detailsSection B2-B2 reinforcment details for head wall


Extendedapron

B245°

200

OD

+340

0

Lw= 1200min

300


Pipe culvert ring


H4-DB12@225c/c

H3-DB10@225c/c

H2-DB10@225c/c

H1-DB12@225c/c

Cut-off wall

Mass concrete 15cm

200

250

500

150

1000

200

200

H2-DB10@225c/c& H3-DB10@225c/c

H1-DB12@225c/cH4-DB12@225c/c

W5-DB10

W4-DB10@225c/c

W3-DB12@225c/c

W2-DB12@225c/c

W1-DB10@225c/cW1-DB10@225c/c

W2-DB12@225c/c

W4-DB10@225c/c

W3-DB12@225c/c

W5-DB10

Inlet

Culvertsize

(InsideØ)

1200

1500



Minimumcover

Material

Approvedgravel

Approvedgravel

700

300 800

1440

1800 Varies

Varies 3001400

1700

250 (top)300 (base)

250 (top)300 (base)


Single Pipe Culvert Bar Bending Schedules

NOTES: 1: All dimensions are in millimeters unless otherwise specified.2: Standard pipe length: 1.0 metre.3: Concrete cylinder strength in 28 days shall be: 21 MPa.4: Reinforcement shall be structural grade deformed bar (DB) with minimum yield strength 420 MPa.


TITLE: Typical Structures Drawing Single Pipe Culvert: Bar bending schedule


SCALE: NTS

DIMENSIONS: mm

SHEET Nº:


Details reinforced concrete pipe culvert rings

Bar bending schedule for pipe culvert installation

Reinforced bar details

Reinforced bar details

Ø

1000

Ø

Details of pipe size

Horizontal bar

Vertical bar

H

H

Size of pipe

Ø mm

Vertical bars (mm) Horizontal bars (mm) Thicknessof pipe H (mm)SpacingØ ØSpacing

90

90

120

150

10

10

12

12

150

150

150

150

10

10

12

12

800

900

1200

1500

150

100

100

100 Pipe

cul

vert

Ø 1

20cm

sin

gle/

doub

le ro

wPi

pe c

ulve

rt Ø

90c

m s

ingl

e/do

uble

row

Pipe

cul

vert

Ø 6

0cm

sin

gle/

doub

le ro

w

Win

gwal

lsH

ead

wal

lsH

ead

wal

lsW

ingw

alls

Bar mark

Length of each bar (m)

SpacingC/C (mm)Component Ø

(mm) Bar

shape

Win

gwal

lsH

ead

wal

ls

Varies225DB 10

H2 Varies225DB 10

Varies225DB 12

DB 12 225 Varies

Varies225

W5 DB 10 2.1

DB 10

DB 12 225 Varies

W4

1.85225DB 12

2.65W1 DB 10 225

W2

W3

H1

H3

H4

H4

H3

H1

W3

W2

225DB 10W1 1.95

DB 12 225 1.5

W4

Varies225DB 12

DB 10

1.4DB 10W5

225 Varies

Varies225DB 12

DB 12 225 Varies

DB 10 225 VariesH2

DB 10 225 Varies

Varies225DB 10

H2 Varies225DB 10

Varies225DB 12

DB 12 225 Varies

Varies225

W5 DB 10 1.4

DB 10

DB 12 225 Varies

W4

1.2225DB 12

1.95W1 DB 10 225

W2

W3

H1

H3

H4

160

varies

varies

450

1400

145

450

1400

varies

160

145

varies

450

2100

220

varies

170

varies


Double Pipe Culvert (600 and 900 diam) - General Arrangement

NOTES: 1: All dimensions are in millimeters unless otherwise specified.2: Conversion factor. 1mm - 0.03937 Inches.3: Standard pipe length: 1.0 metre.4: Concrete cylinder strength in 28 days shall be: 21 MPa.5: Pipe joint sealer shall be cement mortar.6: OD = Outside Diameter = Inside Dia +2*H.7: The Engineer shall specify the length (L) of the culvert structure.8. Provide 20mm x 20mm chamfer to all exposed concrete edges.


TITLE: Typical Structures Drawing Double Pipe Culvert: 600 & 900 general arrangement


SCALE: NTS

DIMENSIONS: mm

SHEET Nº:



A A




Pipe culvert ring


Mass concrete15cm

CLB

B

B

B

Road surface materialBackfillReinforced concreteor stone masonry


Mass concrete15cm

250

200

250

H

CL CL

Road level

OD OD 5001000500

OD+OD +1200

1000 200 400 200

Ø Ø

500

Hw

Hf

200

45°

LW=1200 LW=1200

500

200

250200

Ø Hw

150

200

300

Ø Ø

200

400

Mass concrete

50200


Pipe joint sealer

200

Culvertsize

(InsideØ)

600

900



Minimumcover

Material

Approvedgravel

Approvedgravel

450

300 600

720

1080 Varies

Varies 300800

1100

200 (top)250 (base)

200 (top)250 (base)


Double Pipe Culvert (600 and 900 diam) - Reinforcement Layout

NOTES: 1: All dimensions are in millimeters unless otherwise specified.2: Conversion factor. 1mm - 0.03937 Inches.3: Standard pipe length: 1.0 metre.4: Concrete cylinder strength in 28 days shall be: 21 MPa.5: Reinforcement shall be structural grade deformed bar (DB) with minimum yield strength 420 MPa.6: Pipe joint sealer shall be cement mortar.7: OD = Outside Diameter = Inside Dia +2*H.8: The Engineer shall specify the length (L) of the culvert structure.9. Provide 20mm x 20mm chamfer to all exposed concrete edges.


TITLE: Typical Structures Drawing Double Pipe Culvert: 600 & 900 reinforcement layout


SCALE: NTS

DIMENSIONS: mm

SHEET Nº:



Head wall & wing wall rienforcement details

Ø Ø

CL of road

1200

250

Reinforcedconcrete headwalland wingwall

Mass concrete forcut-off wall and apron

B2

B2

45°

Section B2-B2: Reinforcment details for head wall


Pipe culvert ring


H4-DB12@225c/c

H3-DB10@225c/c

H2-DB10@225c/c

H1-DB12@225c/c

Cut-off wall

Mass concrete 15cm

200

250

500

200

150

1000

H2-DB10@225c/c& H3-DB10@225c/c

H4-DB12@225c/c

W5-DB10

W4-DB10@225c/c

W3-DB12@225c/c

W1-DB10@225c/c

W2-DB12@225c/c

H1-DB12@225c/c

W2-DB12@225c/c

W1-DB10@225c/c

W4-DB10@225c/c

W3-DB12@225c/c

W5-DB10

Culvertsize

(InsideØ)

600

900



Minimumcover

Material

Approvedgravel

Approvedgravel

450

300 600

720

1080 Varies

Varies 300800

1100

200 (top)250 (base)

200 (top)250 (base)


Double Pipe Culvert (1200 and 1500 diam) - General Arrangement


TITLE: Typical Structures Drawing Double Pipe Culvert: 1200 & 1500 general arrangement


SCALE: NTS

DIMENSIONS: mm

SHEET Nº:




A A




Pipe culvert ring


Mass concrete15cm

CLB

B

Road surface materialBackfillReinforced concreteor stone masonry


Mass concrete15cm

300

200

H

45°

LW=1200 LW

500

250

300200

ØHw

150

200

300

Ø ØO

D+O

D+5

200

Extended apron

200

2500 minimum

Reinforcedconcrete

CL CL

Road level

OD OD 5001500500

OD+OD +1200

1500 200 400 200

Ø Ø

500

Hw

Hf

200

400

Mass concrete

50200


Pipe joint sealer

200

Inlet

Culvertsize

(InsideØ)

1200

1500



Minimumcover

Material

Approvedgravel

Approvedgravel

700

300 800

1440

1800 Varies

Varies 3001400

1700

250 (top)300 (base)

250 (top)300 (base)


Double Pipe Culvert (1200 and 1500 diam) - Reinforcement Layout


TITLE: Typical Structures Drawing Double Pipe Culvert: 1200 & 1500 reinforcement layout


SCALE: NTS

DIMENSIONS: mm

SHEET Nº:



Head wall & wing wall reinforcement details Section B2-B2: Reinforcment details for head wall


B2

Reinforcement details for headwall & wingwall

300

200

45°

LW=1200 LW

OD

+OD

+520

0

Extended apron

960200

Ø Ø


Pipe culvert ring


H4-DB12@225c/c

H3-DB10@225c/c

H2-DB10@225c/c

H1-DB12@225c/c

Cut-off wall

Mass concrete 15cm

250

300

500

150

2500 min.

200

H2-DB10@225c/c& H3-DB10@225c/c

H4-DB12@225c/c

W5-DB10

W4-DB10@225c/c

W3-DB12@225c/c

W1-DB10@225c/c

W2-DB12@225c/c

H1-DB12@225c/c

W2-DB12@225c/c

W1-DB10@225c/c

W4-DB10@225c/c

W3-DB12@225c/c

W5-DB10

B2

Culvertsize

(InsideØ)

1200

1500



Minimumcover

Material

Approvedgravel

Approvedgravel

700

300 800

1440

1800 Varies

Varies 3001400

1700

250 (top)300 (base)

250 (top)300 (base)


Single Box Culvert - General Arrangement

NOTES: 1: All dimensions are in millimeters unless otherwise specified.2: Conversion factor. 1mm - 0.03937 Inches.3: Concrete cylinder strength in 28 days shall be; a) box and end structures: 21 MPa; b) Lean concrete: 10 MPa.4: Bed shall be approved compacted non-plastic gravel and lean concrete.5: Crushed aggregate for concrete shall not be greater than 19mm.6: The Engineer shall specify the length (L) of the culvert structure.7. Lw and Hw vary depending on site conditions.8. Provide 20mm x 20mm chamfer to all exposed concrete edges.


TITLE: Typical Structures Drawing Single Box Culvert: General arrangement


SCALE: NTS

DIMENSIONS: mm

SHEET Nº:


Single cell box culvert elevation

Section E-E: Longitudinal section of box culvert

Weep holes PVC Ø 50mm at 500mm centers

Plan of single cell box culvert

250

A

CL

A

E E

CC

250

1000

1500 min250

TwVa

ries

W

1000

Varie

s

Tw

Varies1000 Tw W

Hw

= 1

000

(min

.)

1000VariesTw

g g


CL

Wearing course

Lean concrete10cm

Reinforced concrete

150Lw=1750 (min.)

100700

Ts

½ L

150

Hw

(var

ies)

500

200

200

250

200 10

0Tb100


Single Box Culvert - Reinforcement Layout


TITLE: Typical Structures Drawing Single Box Culvert: Reinforcement layout


SCALE: NTS

DIMENSIONS: mm

SHEET Nº:


NOTES: 1: All dimensions are in millimeters unless otherwise specified.2: Conversion factor. 1mm - 0.03937 Inches.3: Concrete cylinder strength in 28 days shall be; a) box and end structures: 21 MPa; b) Lean concrete: 10 MPa4: Bed shall be stone and sand mix of ration 1:1 and lean concrete.5: Reinforcement shall be structural grade deformed bar (DB), with minimum yield strength 420 MPa or mild steel bar (RB) with minimum yield strength 250 MPa.6: Minimum 40mm cover to reinforcement.7: Minimum bar lap shall be 50xØ.8: Crushed aggregate for concrete shall not be greater than 19mm.9: The Engineer shall specify the length (L) of the culvert structure.10. Provide 20mm x 20mm chamfer to all exposed concrete edges.

CL

1000 Varies 1000Varies

150½ L

200

Tb

1750 min.

100

1000

min

.70

0

Ts

500

200

200100

W TwTw

1500 min.

250

250

250

A3-DB10@150c/c

Plan of head/wing wall and apron & head/wing wall reinforcement detail

W TwTw

S5

S7- DB16@170c/c

Possible bar lapsS3 and S4

S3

S4

S9-4x2DB12

S8-DB14@170c/c

S10-DB14@170c/c

S1

S3

S6

S6

S2

D

Tb

Ts925

264

Construction joint

Section A-A: Reinforcement detail

Varies

500

150

1000

min

500

150

150

150

200

250

500

500

Apron

CL 100

120

150

H1-4xDB12150

250

Section E-E: Culvert head/wing wall and apron reinforcement detail

Leanconcrete10cm RC thickness = Tb

C1-DB12@200 c/c(vertical)

C2-DB10@200 c/c(horizontal)

W1-DB12@150c/c

Wearing course 4cm

W2-DB10@150c/c

B1-4xDB16

B2-RB8@200c/c

Compacted bed of approved gravel 20cm

W1-DB12@150c/c

W2a-DB10@150c/c

W3-DB12@150c/c

W2b-DB10@150c/c

H2-RB6@150c/c

P2-4xDB16

P1-RB6 @ 100c/c

C

CE

E

B B

A A

250

A1-DB10@150c/c

A2-DB10@150c/c

Fillet 100mm x 100mm


Double Box Culvert - General Arrangement

NOTES: 1: All dimensions are in millimeters unless otherwise specified.2: Conversion factor. 1mm - 0.03937 Inches.3: Concrete cylinder strength in 28 days shall be; a) box and end structures: 21 MPa; b) Lean concrete: 10 MPa4: Bed shall be stone and sand mix of ration 1:1 and lean concrete.5: Crushed aggregate for concrete shall not be greater than 19mm.6: The Engineer shall specify the length (L) of the culvert structure.7: Provide 20mm x 20mm chamfer to all exposed concrete edges.


TITLE: Typical Structures Drawing Double Box Culvert: General arrangement


SCALE: NTS

DIMENSIONS: mm

SHEET Nº:


Double, multiple cell box culvert elevation

Section E-E: Longitudinal section of box culvert

Weep holes PVCØ 50 mm at500mm centers

Plan of multiple cell box culvert250

CL

E E

250

1000

1500 min.250

Tw

2000

W

1000

2000

Tw

Tw

W

20001000 Tw W Tw W 10002000Tw

g g g g


CL

Wearing course

Lean concrete10cmReinforced concrete

150Lw=1750 min.

100700

Ts

½ L

150

Hw =1000 min.

500

200

200

250

200100

Tb100

Hw =1000 min.


Double Box Culvert - Reinforcement Layout

NOTES: 1: All dimensions are in millimeters unless otherwise specified.2: Conversion factor. 1mm - 0.03937 Inches.3: Concrete cylinder strength in 28 days shall be; a) box and end structures: 21 MPa; b) Lean concrete: 10 MPa.4: Bed shall be stone and sand mix of ration 1:1 and lean concrete.5: Reinforcement shall be structural grade deformed bar (DB), with minimum yield strength 420 MPa or mild steel (RB) with minimum yield strength 250 MPa.6: Minimum 40mm cover to reinforcement.7: Minimum bar lap shall be 50xØ.8: Crushed aggregate for concrete shall not be greater than 19mm.9: The Engineer shall specify the length (L) of the culvert structure.10: Height of fill Hf shall be dtetermined by the conditions on site.11: Provide 20mm x 20mm chamfer to all exposed concrete edges.


TITLE: Typical Structures Drawing Double Box Culvert: Reinforcement layout


SCALE: NTS

DIMENSIONS: mm

SHEET Nº:


CL


150½ L

200

Tb

1750 min.

100

1000

min

.

700

Ts

500

200

200100

W W TwTw Tw

1500 min.

250

250

250


W Tw W TwTw

D

Tb

Ts

925

Section A-A: Reinforcement detail - double box culvert

Varies

500

150

Hw =1000min.

500

150

150

150

200

500

500

Apron

CL 100

120

150

H1-4xDB12150

250


Leanconcrete10cm Reinforced concrete

Wearing course 4cm


W1-DB12@150c/c

W2a-DB10@150c/c

W3-DB12@150c/c

W2b-DB10@150c/c

H2-RB6@150c/c

P2-4xDB16

P1-RB6@100c/c

C

CE

E

B B

A A

S8

S2S7

S14 S3 S4S8

S11-DB16@170c/c

S10-DB16@170c/c

S9-4x2DB12

S13-DB14@170C/c

S1

S5 S12

S6

S9

S9

S8

100

100200

264

250

250 250



W1-DB12@150c/cW2-DB10@150c/c

B1-4xDB16

B2-RB8@200c/c

A3-DB10@150c/c

A1-DB10@150c/c

A2-DB10@150c/c

S4S5 S4

Possible bar lapsS4 & S5

Construction joint

Possiblebar laps S6


Box Culvert - Bar Bending Schedules


TITLE: Typical Structures Drawing Box Culvert: Bending bar schedules


SCALE: NTS

DIMENSIONS: mm

SHEET Nº:


S1 S2 S3 S4 S5 S6

DB16@150 DB16@2001500

2000

3000

1500

2500

3500

1500

2500

3500

1500

2500

3500

250 250 250

250 250 250

250

300

300 300 300

300

400

400

400 400 400

400400

400 400

350 350

250 250

350 350

DB16@150

DB16@150

DB16@125

DB16@125

DB16@125

DB20@150

DB20@150

DB20@150

DB16@200 DB16@200 DB10@200 DB10@200

DB10@200

DB10@200

DB10@200

DB10@200

DB10@200

DB10@200

DB10@200

DB10@200

DB12@200

DB12@200

DB12@200

DB12@200 DB12@200

DB12@200

DB12@200

DB12@200

S7 S8 S9 S10

DB16@200

DB16@200

DB16@175

DB16@200

DB16@200

DB16@200

DB16@200

DB16@200

DB16@200

DB16@200

DB16@175

DB20@200

DB25@200

DB20@200

DB20@200

DB25@200

DB16@200

DB16@200

DB16@175

DB16@200

DB16@200

DB16@200

DB16@200

DB16@200

DB16@170 DB14@170 4x2DB12 DB16@170

DB16@170 DB14@170 4x2DB12 DB16@170

DB16@170 DB14@170 4x2DB12 DB16@170

DB16@170 DB14@170 4x2DB12 DB16@170

DB16@170 DB14@170 4x2DB12 DB16@170

DB16@170 DB14@170 4x2DB12 DB16@170

DB16@170 DB14@170 4x2DB12 DB16@170

DB16@170 DB14@170 4x2DB12 DB16@170

DB16@170 DB14@170 4x2DB12 DB16@170

1. Values of d1, d2, ....dn and y1, y2, ....yn vary with design and shall be specified by the Engineer for each design. 2. DB 16 @ 175 = Deformed Bar of Ø 16mm placed 175mm centre to centre. 3. Conversion factor 1mm = 0.03937 inches NOTE

W(mm)

D(mm)

Ts(mm)

Tb(mm)

Tw(mm)

W(mm)

D(mm)

Ts(mm)

Tb(mm)

Tw(mm)

S1 S2 S3 S4 S5 S6

DB16@1251500

2000

1500

2500

3500

1500

2500

3500

250 250 250

250 250 250

250

300

300 300 300

300 400 400

250 250

350 350

DB16@200 DB16@200

S12 S13S9 S10 S11

DB14@170 DB14@1704x2DB12 DB16@170

DB14@170 DB14@1704x2DB12 DB16@170

DB14@170 DB14@1704x2DB12 DB16@170

DB14@170 DB14@1704x2DB12 DB16@170

DB14@170 DB14@1704x2DB12 DB16@170

DB14@170 DB14@1704x2DB12 DB16@170

DB16@170

DB16@170

DB16@170

DB16@170

DB16@170

DB16@170

S7 S8

DB16@125

DB16@125

DB20@175

DB20@175

DB20@175

DB16@125

DB16@125

DB16@125

DB20@175

DB20@175

DB20@175

DB16@200 DB16@200

DB16@200

DB16@200 DB16@200

DB16@200

DB16@200

DB16@175

DB16@200

DB16@200

DB16@200

DB16@175

DB20@200

DB25@200

DB20@200

DB16@175

DB16@200

DB16@200

DB16@200

DB16@175

DB16@200

DB16@200

DB10@200 DB10@200

DB10@200 DB10@200

DB10@200 DB12@200

DB10@200 DB10@200

DB10@200 DB10@200

DB10@200 DB12@200

1. Values of d1, d2, ....dn and y1, y2, ....yn vary with design and shall be specified by the Engineer for each design. 2. DB 16 @ 175 = Deformed Bar of Ø 16mm placed 175mm centre to centre 3. Conversion factor 1mm = 0.03937 inches NOTE

Reinforcement bar/steel details of single cell box culvert - mild steel - and maximum cover not exceeding 500mm

Reinforcement bar/steel details of double cell box culvert - mild steel - and maximum cover not exceeding 500mm

d1 d2

d3a

d3b

d4

d5

d6y7

d7 100

d8b

d8a

y8

d1 d2

d3y3

d5

y5

d4d8

150 150

d13b

d13a

y13d9d7

d6

y6

150

150

100

150 y2

y1

y2 y4 150

Bar Mark A1 C1

Reinforcement DB10@150 DB10@150 DB10@150 DB12@200 DB10@200

H1

DB12

A2 A3 C2

Shape

Reinforcement bar/steel details of wing wall

varies

100

varies

100 900

varies

100

50

150

d9

100

d10

150

d10

150

d11

150

varies

varies

Bar Mark

Reinforcement RB6@150 RB6@100 DB16 RB8@200DB16

H2 P1 P2 B1 B2

Shape800

100

90

60

90

90 100

170

varie

s

varies

100

300y12

100

150


Mass Concrete Relief Culvert (700 x 900) - General Layout


TITLE: Typical Structures Drawing Mass Concrete Relief Culvert (700 x 900):General layout


SCALE: NTS

DIMENSIONS: mm

SHEET Nº:


Plan

Section A-A

200

200

900

1300

200 2001000 Length to be confirmed on site

Length to be confirmed on site

200 1001050500

606

800

433

173

1000

1300

30°

2001212

2512

200

x 60

0 to

e

Extent of stone pitching

400

A A

200 2001000 200 1150

400

700

200

200

600

200

200

500

1300 100

200

600

200

Stone pitching

50 blinding concrete

EGL

Trapezoidal drain

2000 transition sectionwith stone pitching

13009002000 200

200

200

600850

450

200

450


Section C-C through catchpit

Ditch transition section

Mass concrete

Stone pitching

Trapezoidaldrain

1500

EGL

C

C


Mass Concrete Relief Culvert (700 x 900) – Reinforcement Layout

NOTES: 1: All dimensions are in millimeters unless otherwise specified.2: All angles are in degrees (360°).3: Structural concrete 28 day crushing strength = 25 MPa.4: Reinforcement shall be structural grade deformed bar (DB), with minimum yield strength 420 MPa or mild steel (RB) with minimum yield strength 250 MPa.5: Minimum depth of cover to reinforcement = 40mm.6: This 700 x 900mm Ø U culvert is the hydraulic equivalent of a 1000 x 600mm deep rectangular aperture.7: Conversion factor 1mm = 0.0394 Inches.8: Provide 20mm x 20mm chamfer to all exposed concrete corners.


TITLE: Typical Structures Drawing Mass Concrete Relief Culvert (700 x 900):Reinforcement details


SCALE: NTS

DIMENSIONS: mm

SHEET Nº:


D D

900

1300

250

200

200

200 200

450

1100

U8

U9U5-DB12@300cc T

U4-DB12@300cc BU7-DB16 (3 bars 300cc in each wing wall)

U10

U11

U2-DB12@200ccin each wall

U3-DB16@300cc B

U1-DB12@400cc T

U6-DB12U6-DB12E

E

B

B

450

U5U3

U4U1U2


Section B-B through deckPlan - Deck slab details

200

12

550

300

775

300

1000

800

500

varies12

1200

300

straight

varies

400100

12

700

400

12

12

16

Shape

12

16

12

555

Bar type

DB [deformed Bar or Ribbed]

Ø (mm)

Wing Wall U9

Deck Slab U4 DB [deformed Bar or Ribbed]

Culvert Wall U2 DB [deformed Bar or Ribbed]

12

U6



U8

Wing Wall U11

Deck Slab U5

Parapet

Bar CodeLocation

U3

Culvert Wall U1

Deck Slab DB [deformed Bar or Ribbed]




DB [deformed

12Wing Wall U10 DB [deformed

Bar or Ribbed]

Bar or Ribbed]

U7

Wing Wall / Culvert Wall


varies

straight

1200

straight

1000

800

Bending schedule

U4U6

U5

U3

200 2001000

1400

200

1300

700

1500

200

400


Mass concrete

Section D-D through catchpit

Section E-E through wing wall


U7U9

200

Varies

200Varies

U11


Mass Concrete Relief Culvert (900 x 1200) - General Layout


TITLE: Typical Structures Drawing Mass Concrete Relief Culvert (900 & 1200):General layout


SCALE: NTS

DIMENSIONS: mm

SHEET Nº:


Plan

Section A-A

200

200

18003358

1509

779

606

173

100

2001350

200 1001350500

700

800

100030°

200

200

x 60

0 to

e

500

200 x 600 toe

A A

100

2001450

200

200

1450

200

900

200

200

100

200

600

Stone pitching52


200

Extent of stone pitching



Inlet


Mass Concrete Relief Culvert (900 x 1200) – Reinforcement Layout

NOTES: 1: All dimensions are in millimeters unless otherwise specified.2: All angles are in degrees (360°).3: Structural concrete 28 day crushing strength = 25 MPa.4: Reinforcement shall be structural grade deformed bar (DB), with minimum yield strength 420 MPa or mild steel (RB) with minimum yield strength 250 MPa.5: Minimum depth of cover to reinforcement = 40mm.6: This 700 x 900mm Ø U culvert is the hydraulic equivalent of a 1000 x 600mm deep rectangular aperture.7: Conversion factor 1mm = 0.0394 Inches.8: Provide 20mm x 20mm chamfer to all exposed concrete edges.


TITLE: Typical Structures Drawing Mass Concrete Relief Culvert (900 & 1200):Reinforcement layout


SCALE: NTS

DIMENSIONS: mm

SHEET Nº:


C C

1200

1600

450

200

200

200 200

600

1450

U8

U11U12

U9U10

D

D

B

B

600

U5


Section B-B through deck

Mass concreteMass concrete

Section C-C through parapet

Plan - Deck slab details

U7

30°

200x

600

toe

U8

U11U12

U9

U10

200x600 toe

U4U6

U5

U3


52

100U1

U2

U5

U3 U4

U1

U2

U6-DB12

U4-DB12@300cc B

U7-DB16 (4 dowels @ 300cc in each wing wall)

U6-DB12

U1-DB12@400ccU2-DB12@200ccin each wall

U7-DB16 (4 bars @ 300cc in each wing wall)

U5-DB12@300cc T

U3-DB16@200cc B

Bending schedule

300

12

875

400

1035

400

1200

1200

400varies

12

1500

300

straight

varies

400100

12

700

400

12

12

12

12

16

Shape

12

16

12

555

Ø (mm)

Wing Wall U9

Deck Slab U4

Culvert Wall U2

12

U6

U8

Wing Wall

Wing Wall

Wing Wall

U10

U11

U12

12Wing Wall U13

Deck Slab U5

Parapet

Bar CodeLocation

U3

Culvert Wall U1

Deck Slab

U7



varies

straight

1500

straight

1300

300

700

200

535

800

Section D-D through wing wall


U10

U10

U10

U10

U9

200

Varies

200Varies

U13500

800

1000

200

Extent of stonepitching


Vented Drift – General Arrangement

NOTES: 1: All dimensions are in millimeters unless otherwise specified.2: Conversion factor. 1mm - 0.03937 Inches.3: Concrete characteristic strength at 28 days shall be: a) box and end structures: 25 MPa; b) Lean concrete: 10 MPa4: Stone and sand mix bed of ratio 1:1 shall be placed under lean concrete.5: Reinforcement shall be structural grade deformed bar (DB), with minimum yield strength 420 MPa.6: Minimum 40mm cover to reinforcement.7: Minimum bar lap shall be 50xØ of bar.8: Crushed aggregate for concrete shall not be greater than 19mm.9: Provide 20mm x 20mm chamfer to all exposed concrete edges.


TITLE: Typical Structures Drawing Vented Drift: General arrangement


SCALE: NTS

DIMENSIONS: mm

SHEET Nº:


Longitudinal elevation of causeway

Plan of concrete slabDetail A: expansion joints

Section D-D

CL

5000 5000 5000 50005000

(-)5% slope(-) 5% slope

D

D

Weep holes PVC Ø 50mmat 500mm centres

A

2500 2500

Varies:300-1000

Stone-cement mortar riprap 20cm thick

150 mm compactedgravel

50 sandcushion

150 mmreinforcedconcrete slab

R1-DB10@150c/c

4%

Reinforcedconcrete slab Longitudinal

joint bar

Weep hole PVC 39mm @10004%

Slope 1:2Concretecut off wall

R2-DB10@150c/c

250

400

100

50

Paint bar with bitumen

PVC Ø 25mm @250C/C25 mm joint fill bybitumen with sand

Plain steel bar Ø 20 mmlength 500@250c/c

2500

2500

2500Slope 1:2 2500 Slope 1:2

CL

Expansionjoints

Stone mortar riprapReinforced concrete slab

E1-DB20@250c/cE2-DB20@250c/c


Vented Drift – Reinforcement Layout

NOTES: 1: All dimensions are in millimeters unless otherwise specified.2: Conversion factor. 1mm - 0.03937 Inches.3: Concrete characteristic strength after 28 days shall be: a) box and end structures: 25 MPa; b) Lean concrete: 10 MPa.4: Stone and sand mix bed of ratio 1:1 shall be placed under lean concrete. 5: Reinforcement shall be structural grade deformed bar (DB), with minimum yield strength 420 MPa.6: Minimum 40mm cover to reinforcement.7: Minimum bar lap shall be 50xØ of bar.8: Crushed aggregate for concrete shall not be greater than 19mm.9: Provide 20mm x 20mm chamfer to all exposed concrete edges.

Section B-B Section C-CDetails of guard post


TITLE: Typical Structures Drawing Vented Drift: Reinforcement Layout


SCALE: NTS

DIMENSIONS: mm

SHEET Nº:


CL


2202515

200

250

1500

100

600

300

500

300

500

200

200100

20502050

300

1500

250

300

250


2050 2050300300300

1100

250

300

300

Section A-A: Reinforcement details

Varies

500

150

600 min.

500

220

220

150

200

450

450

Apron

CL

250


Leanconcrete10cm

Reinforcedconcrete 25cm

Wearing course

W1-DB12@150c/c

W2b-DB10@150c/c

W3-DB12@150c/c

W2c-DB10@150c/c

P2-4xDB16

P1-RB6@100c/c

C

C

B

A A250

200

300

B3

D2

D8-7xDB12

D5

D7

B2B1

D4

D1

S3S2

S1

P1-RB6@100c/c

P2-4xDB16

B4D2D2

D6

B5

E

E

250250

A3-DB10@150c/c

A1-DB10@150c/c

A2-DB10@150c/c

100

100

200

200

D2

D5

B3

D3

Constructionjoint

Possible barlap B4/D3



W1-DB12@150c/c

W2a-DB10@150c/c

W2b-DB10@150c/cB1-4xDB16

B2-RB8@200c/c


2x dowels DB25x 300 long@200c/c

B



TITLE: Typical Structures Drawing Vented Drift: Bar bending schedule


SCALE: NTS

DIMENSIONS: mm

SHEET Nº:


Abut

men

t wall

s & m

iddl

e wall

Note: DB 12-Deformed Bar, Dia 12mm, RB 10-Round Bar, Dia 10mm

S2 DB 20

DB 12

DB 20

Slab

Edge

beam

S3

S1

170

200

170

D4 DB 14

DB 16

DB 14

DB 14

D3

D6

D5

170

170

170

170

170

Botto

m sl

ab DB 16

DB 16

DB 10

DB 16

B2

D1

B3

D2

170

170

200

170

B1 DB 16

DB 10

DB 10

W2a

W2b

DB 12W3

Win

gwall

s170

150

150

150

Ø (mm) Spacing CC(mm)

DB 12

Bar shape Barmark

W1 150

5.2

5.0

B1 RB8

DB 16B2

200 0.6

5.0

5.2

0.82

1.05

0.64

DB 14D7 1.2

DB 14D8 5.2

0.59

5.6

0.95

5.2

1.5

5.3

1.6

Varies

DB 10W2c 150 3.0

Varies

Varies

Apro

ns

Note: DB 12-Deformed Bar, Dia 12mm, RB 10-Round Bar, Dia 10mm

Exte

nsio

njo

int

DB 20 250E2

250E1 DB 20

0.5

0.5

Rcc s

labap

roac

hPo

stgu

ard

DB 10 150R2

150

100

P2

R1

P1

DB 10

DB 16

RB6

Cut o

ffwa

lls 200

150

150

C1 DB 12

A3

A2

DB 10

DB 10

DB 10C2

2.5

2.5

0.55

0.6

1.0

Varies

Varies

7.3

150A1 DB 10 1.5

DB 20B4

B5

170 5.3

DB 16 170 0.88

1200

4900

4900

450

250

150

350

400180

150

200

550

5200

4900

100varies

10002000

45°

1450

2400

2400

450

140

50

140

900

Varies

Varies

5050

490015

015

020

020

0

5050

1500

4900

50

400

120

450

120

900

150

200

480

100varies

1001400

100varies

Com

pone

nt Length ofeach

bar (m)Ø (mm) Spacing CC

(mm) Bar shape Barmark

Com

pone

nt Length ofeach

bar (m)

5050

Bars bending schedule for causeway

220

220

150100

150

Vented Drift – Bar Bending Schedule

Appendix C.4 Drainage Structural Drawingsi

Documents

Transcript of Appendix C.4 Drainage Structural Drawingsi