J.3_B-Pipe_Culverts_Drawings.pdf
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- SOL-669-16-000006
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The top of the inlet shall be placed at ground level to present an unob-structed ditch or median section.
TYPICAL DRAINAGE LAYOUT AT
REINFORCED CONCRETE PIPE CULVERTS
Ro ad
C L
H1 H2
H1 H2
Wap
45°
Lap
Wing Wall
Apron Head Wall
Cut Off Wall
Head wall (Inlet side)
L
PLAN OF LAYOUT & REINFORCEMENT OF RELIEF RCP WITH DROP INLET
Scale:Sheet No:
Revision No:
Drawn by:
Approved by:
Drawing Title & Detail:
Designed by:
Checked by:
Road Name: & Location
Client:
Drawing No: Date:
Ministry of Public Works, GOL.
Funded by: USAID Liberia
Ministry of Public Works, Liberia.
Do Not Scale __ of __
GENERAL NOTES
Engineering Services for Rural Road Rehabilitation Project
DROP INLET VIEW (DOUBLE INFLOW)
SECTION A - A
Natural Ground
2% Min Culvert
7% MinRoad A
A
DROP INLET VIEW (DOUBLE INFLOW)
Road B
B
DROP INLET VIEW (SINGLE INFLOW)
Natural Ground
7% Min
Culvert 2% Min
SECTION B - B
DROP INLET (SINGLE INFLOW) RELIEF CULVERTS (DROP INLET CULVERTS)
Pipe Culverts: Inlets (Elevations & Plans)
Min OD + 800
Min 400
Min 1500
Culvert Pipe
Varies according to side drain size & invert
Min400
Min OD + 800 Min 1200
Culvert Pipe
Varies according to side drain size & invert
1. All dimension are in millimeters unless otherwise specified
2. Standard Pipe Length shall be 1m.
3. Concrete cylinder strength at 28 days shall be Min 20 MPa.
4.Reinforcement shall be structural grade deformed bar with min strength 276 Mpa.
5. Pipe joint sealant shall be cement: mortar
6. OD is Outer Pipe Diameter
7. The engineer shall specify the length of the culvert structure.
8. Concrete cover to reinforcement shall be 40mm
9. All backfill to structures shall be done in layers not exceeding 200mm abd compacted with a plate compactor.
10. All culvert structure locations shall be cleaned of all loose materials and waste on completion of the work. No extra payment shall be done for the cleaning activity,
11. The engineer shall decide the most appropriate type of inlet & outlets structures.
12. Where compaction by Hand held Rammers is required for narrow spaces, backfill shall be done in layers not exceeding 150mm.
13. Wap - Apron Width, Lap - Apron Length at longer side
Min OD + 400
Min OD + 600
Min OD + 600
OD + 400
200 1300 200
Di
ELEVATION SHOWING FLARED WING INLET
REINFORCED CONCRETE PIPE CULVERTS INLETS
DS003
Date:
4" x 3" x 1/2" x 35 1/4"
STEEL ANGLE
5 1/2" x 1" x 1/4"
STEEL ANGLE
4" x 3" x 3/8"
STEEL PLATE
~ TACK WELD
TO ANGLE
1/2" DIAM. x 4" STEEL STUD ~
PLACE ALONG SUPPORT AS
SHOWN FOR ANGLES
Scale:Sheet No:
Revision No:
Drawn by:
Approved by:
Drawing Title & Detail:
Designed by:
Checked by:
Road Name: & Location
Client:
Drawing No: Date:
Ministry of Public Works, GOL.
Funded by: USAID Liberia
Ministry of Public Works, Liberia.
Do Not Scale __ of __
GENERAL NOTES
Engineering Services for Rural Road Rehabilitation Project
C L
C L
C L
PLAN OF RCP DRAINAGE LAYOUT AT RELIEF CULVERTS
PLAN OF RCP DRAINAGE LAYOUT AT EMBARKMENT FILLSPLAN OF RCP DRAINAGE LAYOUT IN ACTIVE STREAMS
Plan of Drainage Layouts at RCP Culverts
1. All dimension are in millimeters unless otherwise specified
2. Standard Pipe Length shall be 1m.
3. Concrete cylinder strength at 28 days shall be Min 20 MPa.
4.Reinforcement shall be structural grade deformed bar with min strength 276 Mpa.
5. Pipe joint sealant shall be cement: mortar
6. OD is Outer Pipe Diameter
7. The engineer shall specify the length of the culvert structure.
8. Concrete cover to reinforcement shall be 40mm
9. All backfill to structures shall be done in layers not exceeding 200mm abd compacted with a plate compactor.
10. All culvert structure locations shall be cleaned of all loose materials and waste on completion of the work. No extra payment shall be done for the cleaning activity,
11. The engineer shall decide the most appropriate type of inlet & outlets structures.
12. Where compaction by Hand held Rammers is required for narrow spaces, backfill shall be done in layers not exceeding 150mm.
TYPICAL LAYOUT AT PIPE CULVERTS (INLETS & OUTLETS)
Inlet Outlet Inlet Outlet
Inlet Outlet
DS001
Scale:Sheet No:
Revision No:
Drawn by:
Approved by:
Drawing Title & Detail:
Designed by:
Checked by:
Road Name: & Location
Client:
Drawing No: Date:
Ministry of Public Works, GOL.
Funded by: USAID Liberia
Ministry of Public Works, Liberia.
Do Not Scale __ of __
GENERAL NOTES
Engineering Services for Rural Road Rehabilitation Project
Pipe Culverts: Relief RCP (Elevations & Sections)
1. All dimension are in millimeters unless otherwise specified
2. Standard Pipe Length shall be 1m.
3. Concrete cylinder strength at 28 days shall be Min 20 MPa.
4.Reinforcement shall be structural grade deformed bar with min strength 276 Mpa.
5. Pipe joint sealant shall be cement: mortar
6. OD is Outer Pipe Diameter
7. The engineer shall specify the length of the culvert structure.
8. Concrete cover to reinforcement shall be 40mm
9. All backfill to structures shall be done in layers not exceeding 200mm abd compacted with a plate compactor.
10. All culvert structure locations shall be cleaned of all loose materials and waste on completion of the work. No extra payment shall be done for the cleaning activity,
11. The engineer shall decide the most appropriate type of inlet & outlets structures.
12. Where compaction by Hand held Rammers is required for narrow spaces, backfill shall be done in layers not exceeding 150mm.
13. Hw - Height of Head Wall from Apron
Culvert Ramp Profile
Existing Side Drain Invert
Grouted Stone Pitching Planted Grass
200 Road Side Drain Invert
Inlet Apron
Natural Ground
2% Min
Culvert
7% Min
Grouted Stone Pitching
Hw
=(Hw - 200) =(Hw - 200)
Detail S
H1
H2
2000 200020002000
DETAIL FOR RELIEF RCP CULVERTS WITH SHALLOW INLET INVERTS
Mass Concrete 150mm
ELEVATION AT INLETS OF RELIEF CULVERTS WITH SHALLOW INVERTS
DETAIL S
SECTION A - A
Max 10% Max 10%
Min Cover
Transition in Level From Side Drain to Culvert Invert (Varies)
Road A
A
Varies
CL
Scale:Sheet No:
Revision No:
Drawn by:
Approved by:
Drawing Title & Detail:
Designed by:
Checked by:
Road Name: & Location
Client:
Drawing No: Date:
Ministry of Public Works, GOL.
Funded by: USAID Liberia
Ministry of Public Works, Liberia.
Do Not Scale __ of __
GENERAL NOTES
Engineering Services for Rural Road Rehabilitation Project
Pipe Culverts: Relief RCP (Layout)
1. All dimension are in millimeters unless otherwise specified
2. Standard Pipe Length shall be 1m.
3. Concrete cylinder strength at 28 days shall be Min 20 MPa.
4.Reinforcement shall be structural grade deformed bar with min strength 276 Mpa.
5. Pipe joint sealant shall be cement: mortar
6. OD is Outer Pipe Diameter
7. The engineer shall specify the length of the culvert structure.
8. Concrete cover to reinforcement shall be 40mm
9. All backfill to structures shall be done in layers not exceeding 200mm abd compacted with a plate compactor.
10. All culvert structure locations shall be cleaned of all loose materials and waste on completion of the work. No extra payment shall be done for the cleaning activity,
11. The engineer shall decide the most appropriate type of inlet & outlets structures.
12. Where compaction by Hand held Rammers is required for narrow spaces, backfill shall be done in layers not exceeding 150mm.
PERSPECTIVE VIEW OF RELIEF CULVERT INLETS WITH SHALLOW INVERTS
B
B
LAYOUT FOR RELIEF RCP CULVERTS WITH SHALLOW INLET INVERTS
DS005
((2xOD)+1200)
Di
Scale:Sheet No:
Revision No:
Drawn by:
Approved by:
Drawing Title & Detail:
Designed by:
Checked by:
Road Name: & Location
Date:
Client:
Drawing No: Date:
Ministry of Public Works, GOL.
Funded by: USAID Liberia
Ministry of Public Works, Liberia.
Do Not Scale __ of __
GENERAL NOTES
Engineering Services for Rural Road Rehabilitation Project
Depth Not Exceeding 1.5m
((2x OD) + 1200)
Di
Deep Excavations Exceeding 1.5m
To be excavated & sloped at 1:1 for stability
Finished Road Profile Level
Depth Not Exceeding 1.5m
Deep Excavations Exceeding 1.5m
To be excavated & sloped at 1:1 for stability
Finished Road Profile Level
1. All dimension are in millimeters unless otherwise specified
2. Standard Pipe Length shall be 1m.
3. Concrete cylinder strength at 28 days shall be Min 20 MPa.
4.Reinforcement shall be structural grade deformed bar with min strength 276 Mpa.
5. Pipe joint sealant shall be cement: mortar
6. OD is Outer Pipe Diameter
7. The engineer shall specify the length of the culvert structure.
8. Concrete cover to reinforcement shall be 40mm
9. All backfill to structures shall be done in layers not exceeding 200mm abd compacted with a plate compactor.
10. All culvert structure locations shall be cleaned of all loose materials and waste on completion of the work. No extra payment shall be done for the cleaning activity,
11. The engineer shall decide the most appropriate type of inlet & outlets structures.
12. Where compaction by Hand held Rammers is required for narrow spaces, backfill shall be done in layers not exceeding 150mm.
Pipe Culverts Trench Excavations
ALLOWABLE EXCAVATION WIDTHS FOR SINGLE & DOUBLE
REINFORCED CONCRETE PIPE CULVERTS
EXCAVATION WIDTHS FOR DOUBLE RCP WITH EXCAVATION
DEPTH NOT EXCEEDING 1.5m DEPTH EXCAVATION WIDTHS FOR A SINGLE LINE RCP WITH EXCAVATION
DEPTH NOT EXCEEDING 1.5m DEPTH
EXCAVATION WIDTHS FOR DOUBLE RCP WITH DEEP EXCAVATION
(EXCEEDING 1.5m DEPTH)
EXCAVATION WIDTHS FOR SINGLE LINE RCP WITH DEEP EXCAVATION
(EXCEEDING 1.5m DEPTH)
OD + 400
OD + 800
200 200
DS016
Head Wall
Scale:Sheet No:
Revision No:
Drawn by:
Approved by:
Drawing Title & Detail:
Designed by:
Checked by:
Road Name: & Location
Client:
Drawing No: Date:
Ministry of Public Works, GOL.
Funded by: USAID Liberia
Ministry of Public Works, Liberia.
Do Not Scale __ of __
GENERAL NOTES
Engineering Services for Rural Road Rehabilitation Project
P1
P2
OD/3
REINFORCEMENT ELEVATION FOR HEAD & WING WALL
(BOTH OUTLET & INLET)
Compacted Hardcore (Stone) -100mm
Apron
Cut Off Wall
Mass Concrete C15 Compacted Hardcore (Stone) 100mm
W5
W2 W1
H1
H2
Culvert Size (Inside - Diam)
OD
Wing Wall Length (L)
Head Wall Height (Hw)
Head Wall Thickness Concrete
Backfill
Stone Masonary
Minimum Cover, (Hf)
1350 Min but Varies
1850 Min but Varies
2300 Min but Varies
2700 Min but Varies
N/A
N/A
Select Material
Imported Gravel or Approved Insitu Material
Apron
Length (Lap) Width (Wap)
3150 Min but Varies
Varies 1875
Varies 2550
Varies 3150
Pipe Culverts: Single RCP in Active Streams (Elevations & Sections)
Wap
H1
H2
H1
H2
Mass Concrete Haunch (Continuous)
Mass Concrete C15 Bedding (Continuos)
1. All dimension are in millimeters unless otherwise specified
2. Standard Pipe Length shall be 1m.
3. Concrete cylinder strength at 28 days shall be Min 20 MPa.
4.Reinforcement shall be structural grade deformed bar with min strength 276 Mpa.
5. Pipe joint sealant shall be cement: mortar
6. OD is Outer Pipe Diameter
7. The engineer shall specify the length of the culvert structure.
8. Concrete cover to reinforcement shall be 40mm
9. All backfill to structures shall be done in layers not exceeding 200mm abd compacted with a plate compactor.
10. All culvert structure locations shall be cleaned of all loose materials and waste on completion of the work. No extra payment shall be done for the cleaning activity,
11. The engineer shall decide the most appropriate type of inlet & outlets structures.
12. Where compaction by Hand held Rammers is required for narrow spaces, backfill shall be done in layers not exceeding 150mm.
13. Wap - Apron Width, Lap - Apron Length at the Longer Side.
14. For reinforcement details, see bar bending summary sheet.
Hardcore (Stone Boulders)500
Hw (Varies)
REINFORCEMENT DETAIL AT HEAD WALL
SINGLE LINE RCP CULVERTS IN ACTIVE STREAMS ON SOFT GROUND
SECTION B-B: CROSS SECTION OF RCP FOUNDATION DETAIL
Imported Gravel or Approved Insitu Material
Imported Gravel or Approved Insitu Material
Imported Gravel or Approved Insitu Material
DS009
CL CL
Wing Wall
Scale:Sheet No:
Revision No:
Drawn by:
Approved by:
Drawing Title & Detail:
Designed by:
Checked by:
Road Name: & Location
Date:
Client:
Drawing No: Date:
Ministry of Public Works, GOL.
Funded by: USAID Liberia
Ministry of Public Works, Liberia.
Do Not Scale __ of __
GENERAL NOTES
Engineering Services for Rural Road Rehabilitation Project
P1
P2
SECTION B - B RCP FOUNDATION DETAIL
Mass Concrete Haunch (Continuos)
Road Level Reinforced Concrete
W5
W2 W1
H1
W2
H2
W1
Pipe Culverts: Double RCP in Active Streams ( Elevations & Sections)
Min {(OD x 2) + 800}
Hw
Mass Concrete C15 Bedding (Continuos)
ELEVATION SHOWING HEAD & WING WALLS
A
A
OD/3
Head Wall
Compacted Hardcore (Stone) -100mm
Apron
Cut Off Wall
Mass Concrete C15 Compacted Hardcore (Stone) 100mm
Wap
H1
H2
H1
H2
Hw (Varies)
200200
REINFORCEMENT DETAIL AT HEAD WALL
DOUBLE LINE RCP CULVERTS IN ACTIVE STREAMS ON SOFT GROUND
ELEVATION SHOWING REINFORCEMENT FOR HEAD & WING WALL
(BOTH OUTLET & INLET)
1. All dimension are in millimeters unless otherwise specified
2. Standard Pipe Length shall be 1m.
3. Concrete cylinder strength at 28 days shall be Min 20 MPa.
4.Reinforcement shall be structural grade deformed bar with min strength 276 Mpa.
5. Pipe joint sealant shall be cement: mortar
6. OD is Outer Pipe Diameter
7. The engineer shall specify the length of the culvert structure.
8. Concrete cover to reinforcement shall be 40mm
9. All backfill to structures shall be done in layers not exceeding 200mm abd compacted with a plate compactor.
10. All culvert structure locations shall be cleaned of all loose materials and waste on completion of the work. No extra payment shall be done for the cleaning activity,
11. The engineer shall decide the most appropriate type of inlet & outlets structures.
12. Where compaction by Hand held Rammers is required for narrow spaces, backfill shall be done in layers not exceeding 150mm.
13. Wap - Apron Width, Lap - Apron Length at the Longer Side.
14. For reinforcement details, see bar bending summary sheet.
Culvert Size (Inside - Diam)
OD
Wing Wall Length (L)
Head Wall Height (Hw)
Head Wall Thickness Concrete
Backfill
Stone Masonary
Minimum Cover, (Hf)
1350 Min but Varies
1850 Min but Varies
2300 Min but Varies
2700 Min but Varies
N/A
N/A
Select Material
Imported Gravel or Approved Insitu Material
Apron
Length (Lap) Width (Wap)
3150 Min but Varies
Varies 1875
Varies 2550
Varies 3150
Imported Gravel or Approved Insitu Material
Imported Gravel or Approved Insitu Material
Imported Gravel or Approved Insitu Material
DS014
DB 10
DB 10
varies
DB 12
varies DB 12
Varies225
W3 Y10
123Y 10
Y 12 225 4 7 28 Varies
W2
1.21234225Y 10
205 1.954100 1400
HE
AD
W
AL
LS
W
IN
GW
AL
LS
BAR
SHAPE DiaCOMP
ONENT
W1 Y 12
No OF
MEMBER
SPACING
C/C
LENGTH OF
EACH BAR
W2
W1
H1
H2
H3
H4
BAR
MARK
(mm) (mm) (m)
No OF BAR
EACH
MEMBER
TOTAL No
OF BAR
Varies162 8225
Varies225 162 8
Varies225 262 13
132 26225 Varies
Varies
14 4 1.4
H4
H3
H1
W3
W2
225DB 12W1
W
IN
GW
AL
LS
HE
AD
W
AL
LS
4501400 100 4 1.956 24
DB 10 225 4 3 12 1.5
W4
1.83694225DB 12
DB 10 4 4 16
1.444 1DB 10W5
225 0.5
1.36225 322 16DB 12varies
DB 12 162 32225 Varies14 varies
DB 10 122 24225 2.2H2
DB 10 225 122 24 Varies
Varies282 14225DB 10
H2 3225 282 14DB 12
varies
Varies225 422 21DB 12 varies DB 16 212 42225 1.9
Varies225
W5 DB 10 14 4 2.1
2464DB 10
DB 12 225 4 12 48 Varies
W4
1.851234225DB 12
328 2.654100 2100
HE
AD
W
AL
LS
W
IN
GW
AL
LS
W1 DB 16 225
W2
W3
H1
H3
H4
PI
PE
C
UL
VE
RT
D
IA
C
M
DO
UB
LE
R
OW
PI
PE
C
UL
VE
RT
D
IA
C
M
DO
UB
LE
R
OW
PI
PE
C
UL
VE
RT
D
IA
0 &
0C
M
DO
UB
LE
R
OW
TOTAL No
OF BAR
No OF BAR
EACH
MEMBER (m)(mm)(mm)
BAR
MARK
H4
H3
H1
W3
W2
LENGTH OF
EACH BAR
SPACING
C/C No OF
MEMBER
DB 12W1
COMP
ONENT Dia BAR
SHAPE
W
IN
GW
AL
LS
HE
AD
W
AL
LS
4501400 100 4 1.955 20
DB 10 225 4 3 12 1.2
W4
Varies2874225DB 12
DB 10 4 3 12
1.444 1DB 10W5
225 Varies
Varies225 202 10DB 12varies
DB 12 102 20225 Varies14 varies
DB 10 92 18225 VariesH2
DB 10 225 92 18 Varies
Varies242 12225DB 10
H2 Varies225 242 12DB 10 varies
Varies225 202 10DB 12 varies DB 12 102 20225 Varies
Varies225
W5 DB 10 14 4 1.4
1644DB 10
DB 12 225 4 9 36 Varies
W4
1.51234225DB 10
246 1.954100
HE
AD
W
AL
LS
W
IN
GW
AL
LS
W1 DB 12 225
W2
W3
H1
H3
H4
H4
H3
H1
W3
W2
225DB 16W1
W
IN
GW
AL
LS
HE
AD
W
AL
LS
4502100 100 4 2.658 32
DB 12 225 4 3 12 1.85
W4
Varies28124225DB 12
DB 10 4 6 24
2.144 1DB 10W5
225 Varies
Varies225 222 11DB 16varies
DB 12 112 22225 Varies17 varies
DB 12 142 28225 VariesH2
DB 10 225 142 28 Varies
PI
PE
C
UL
VE
RT
D
IA
C
M
SI
NG
LE
R
OW
PI
PE
C
UL
VE
RT
D
IA
C
M
SI
NG
LE
R
OW
PI
PE
C
UL
VE
RT
D
IA
0 &
0C
M
SI
NG
LE
R
OW
Scale:Sheet No:
Revision No:
Drawn by:
Approved by:
Drawing Title & Detail:
Designed by:
Checked by:
Road Name: & Location
Client:
Drawing No: Date:
Ministry of Public Works, GOL.
Funded by: USAID Liberia
Ministry of Public Works, Liberia.
Do Not Scale __ of __
GENERAL NOTES
Engineering Services for Rural Road Rehabilitation Project
Pipe Culverts: Bar Bending Schedule
BAR BENDING SCHEDULE FOR PIPE CULVERT INSTALLATION
DOUBLE LINE CULVERTS SINGLE LINE CULVERTS
1. All dimension are in millimeters unless otherwise specified
2. Reinforcement shall be structural grade deformed bar with min strength 276 Mpa.
3. Concrete cover to reinforcement shall be 40mm
DS020
C L
CL
Di
Wing Wall
Scale:Sheet No:
Revision No:
Drawn by:
Approved by:
Drawing Title & Detail:
Designed by:
Checked by:
Road Name: & Location
Client:
Drawing No: Date:
Ministry of Public Works, GOL.
Funded by: USAID Liberia
Ministry of Public Works, Liberia.
Do Not Scale __ of __
GENERAL NOTES
Engineering Services for Rural Road Rehabilitation Project
Pipe Joint sealer
Road Level
ELEVATION SHOWING RCP HEAD & WING WALLS
(FOR BOTH INLETS & OUTLETS IN ACTIVE STREAMS)
DETAIL OF PIPE
JOINT & BEDDING
Pipe Culvert
Mass Concrete C15 (100mm)
Back Fill Hf
SECTION A - A: LONGITUDINAL CROSS SECTION
THROUGH CULVERT STRUCTURE
Pipe Culverts: Single RCP in Active Streams (Elevations & Sections)
Lap
Hw
Hf
B
B
OD + 400
Wing Wall Slope 1 : 2
Mass Concrete Haunch Mass Concrete Bedding
A
A
200200
SINGLE LINE RCP CULVERTS IN ACTIVE STREAMS ON SOFT GROUND
Wap
Compacted Stone (100mm)
Laterite Surface
Reinforced Concrete C20
1. All dimension are in millimeters unless otherwise specified
2. Standard Pipe Length shall be 1m.
3. Concrete cylinder strength at 28 days shall be Min 20 MPa.
4.Reinforcement shall be structural grade deformed bar with min strength 276 Mpa.
5. Pipe joint sealant shall be cement: mortar
6. OD is Outer Pipe Diameter
7. The engineer shall specify the length of the culvert structure.
8. Concrete cover to reinforcement shall be 40mm
9. All backfill to structures shall be done in layers not exceeding 200mm abd compacted with a plate compactor.
10. All culvert structure locations shall be cleaned of all loose materials and waste on completion of the work. No extra payment shall be done for the cleaning activity,
11. The engineer shall decide the most appropriate type of inlet & outlets structures.
12. Where compaction by Hand held Rammers is required for narrow spaces, backfill shall be done in layers not exceeding 150mm.
13. Wap - Apron Width, Lap - Apron Length at the Longer Side.
14. For reinforcement details, see bar bending summary sheet.
Culvert Size (Inside - Diam)
OD
Wing Wall Length (L)
Head Wall Height (Hw)
Head Wall Thickness Concrete
Backfill
Stone Masonary
Minimum Cover, (Hf)
1350 Min but Varies
1850 Min but Varies
2300 Min but Varies
2700 Min but Varies
N/A
N/A
Select Material
Imported Gravel or Approved Insitu Material
Apron
Length (Lap) Width (Wap)
3150 Min but Varies
Varies 1875
Varies 2550
Varies 3150
Imported Gravel or Approved Insitu Material
Imported Gravel or Approved Insitu Material
Imported Gravel or Approved Insitu Material
DS008
Pipe Joint sealer
Scale:Sheet No:
Revision No:
Drawn by:
Approved by:
Drawing Title & Detail:
Designed by:
Checked by:
Road Name: & Location
Client:
Drawing No: Date:
Ministry of Public Works, GOL.
Funded by: USAID Liberia
Ministry of Public Works, Liberia.
Do Not Scale __ of __
GENERAL NOTES
Engineering Services for Rural Road Rehabilitation Project
C L
Pipe Culvert
Mass Concrete C15 (100mm)
Back Fill Hf
B
B
Wing Wall Slope 1: 2
Pipe Culverts: Double RCP in Active Streams (Plan, Elevations & Sections)
Concrece Haunch
Concrete Bedding
Ma ss co nc re te for cu t o ff w all an d a pr on
PLAN SHOWING CULVERT PIPE & REINFORCEMENT DETAIL
Wing Wall
Compacted Hardcore (Stone) -100mm
Apron
Mass Concrete C15 (150mm) Compacted Hardcore (Stone) 100mm
H1
H2
H1
H2
Varies
REINFORCEMENT DETAIL AT WING WALL
Back Fill
DETAIL OF PIPE
JOINT & BEDDING
SECTION A - A: LONGITUDINAL CROSS SECTION
THROUGH CULVERT STRUCTURE
DOUBLE LINE RCP CULVERTS IN ACTIVE STREAMS ON SOFT GROUND
Compacted Stone (100mm)
Laterite Surface
Reinforced Concrete
1. All dimension are in millimeters unless otherwise specified
2. Standard Pipe Length shall be 1m.
3. Concrete cylinder strength at 28 days shall be Min 20 MPa.
4.Reinforcement shall be structural grade deformed bar with min strength 276 Mpa.
5. Pipe joint sealant shall be cement: mortar
6. OD is Outer Pipe Diameter
7. The engineer shall specify the length of the culvert structure.
8. Concrete cover to reinforcement shall be 40mm
9. All backfill to structures shall be done in layers not exceeding 200mm abd compacted with a plate compactor.
10. All culvert structure locations shall be cleaned of all loose materials and waste on completion of the work. No extra payment shall be done for the cleaning activity,
11. The engineer shall decide the most appropriate type of inlet & outlets structures.
12. Where compaction by Hand held Rammers is required for narrow spaces, backfill shall be done in layers not exceeding 150mm.
13. Wap - Apron Width, Lap - Apron Length at the Longer Side.
14. For reinforcement details, see bar bending summary sheet.
Culvert Size (Inside - Diam)
OD
Wing Wall Length (L)
Head Wall Height (Hw)
Head Wall Thickness Concrete
Backfill
Stone Masonary
Minimum Cover, (Hf)
1350 Min but Varies
1850 Min but Varies
2300 Min but Varies
2700 Min but Varies
N/A
N/A
Select Material
Imported Gravel or Approved Insitu Material
Apron
Length (Lap) Width (Wap)
3150 Min but Varies
Varies 1875
Varies 2550
Varies 3150
Imported Gravel or Approved Insitu Material
Imported Gravel or Approved Insitu Material
Imported Gravel or Approved Insitu Material
DS012
Drawn by:
Approved by:
Drawing Title & Detail:
Designed by:
Checked by:
Road Name: & Location
Client:
Drawing No: Date:
Ministry of Public Works, GOL.
Funded by: USAID Liberia
Ministry of Public Works, Liberia.
Do Not Scale __ of __
GENERAL NOTES
Engineering Services for Rural Road Rehabilitation Project
CULVERT PIPES ARRANGEMENT & REINFORCEMENT
LAY OUT PLAN
Wing Wall
Compacted Hardcore (Stone) -100mm
Apron
Mass Concrete C15 Compacted Hardcore (Stone) 100mm
H1
H2
H1
H2
Varies
REINFORCEMENT DETAIL AT WING WALL
Back Fill
DOUBLE LINE PIPE CULVERTS IN EMBARKMENT SECTIONS
ROAD
Pipe Culverts: Double RCP in Embarkment Fill Locations (Plan & Sections)
1. All dimension are in millimeters unless otherwise specified
2. Standard Pipe Length shall be 1m.
3. Concrete cylinder strength at 28 days shall be Min 20 MPa.
4.Reinforcement shall be structural grade deformed bar with min strength 276 Mpa.
5. Pipe joint sealant shall be cement: mortar
6. OD is Outer Pipe Diameter
7. The engineer shall specify the length of the culvert structure.
8. Concrete cover to reinforcement shall be 40mm
9. All backfill to structures shall be done in layers not exceeding 200mm abd compacted with a plate compactor.
10. All culvert structure locations shall be cleaned of all loose materials and waste on completion of the work. No extra payment shall be done for the cleaning activity,
11. The engineer shall decide the most appropriate type of inlet & outlets structures.
12. Where compaction by Hand held Rammers is required for narrow spaces, backfill shall be done in layers not exceeding 150mm.
13. Wap - Apron Width, Lap - Apron Length at the Longer Side.
14. For reinforcement details, see bar bending summary sheet.
DS010
Ro ad
C L
Wap
45°
Lap
Wing wall
Apron
Head wall
Cutoff wall
Head wall
L
Wap
45°
Lap
L
Scale:Sheet No:
Revision No:
Drawn by:
Approved by:
Drawing Title & Detail:
Designed by:
Checked by:
Road Name: & Location
Client:
Drawing No: Date:
Ministry of Public Works, GOL.
Funded by: USAID Liberia
Ministry of Public Works, Liberia.
Do Not Scale __ of __
GENERAL NOTES
Engineering Services for Rural Road Rehabilitation Project
CULVERT PIPES ARRANGEMENT & REINFORCEMENT
Wing Wall
Compacted Hardcore (Stone) -100mm
Apron
Mass Concrete C15 Compacted Hardcore (Stone) 100mm
H1
H2
H1
H2
Varies
REINFORCEMENT DETAIL AT WING WALL
Back Fill
SINGLE LINE PIPE CULVERTS IN EMBARKMENT SECTIONS
Culvert Length Varies with Embarkment Height
Pipe Culverts: Single RCP in Embarkment Fill Locations (Plan & Sections)
1. All dimension are in millimeters unless otherwise specified
2. Standard Pipe Length shall be 1m.
3. Concrete cylinder strength at 28 days shall be Min 20 MPa.
4.Reinforcement shall be structural grade deformed bar with min strength 276 Mpa.
5. Pipe joint sealant shall be cement: mortar
6. OD is Outer Pipe Diameter
7. The engineer shall specify the length of the culvert structure.
8. Concrete cover to reinforcement shall be 40mm
9. All backfill to structures shall be done in layers not exceeding 200mm abd compacted with a plate compactor.
10. All culvert structure locations shall be cleaned of all loose materials and waste on completion of the work. No extra payment shall be done for the cleaning activity,
11. The engineer shall decide the most appropriate type of inlet & outlets structures.
12. Where compaction by Hand held Rammers is required for narrow spaces, backfill shall be done in layers not exceeding 150mm.
13. Wap - Apron Width, Lap - Apron Length at the Longer Side.
14. For reinforcement details, see bar bending summary sheet.
LAY OUT PLAN
ROAD
DS015
45°
45°
Head Wall
Scale:Sheet No:
Revision No:
Drawn by:
Approved by:
Drawing Title & Detail:
Designed by:
Checked by:
Road Name: & Location
Date:
Client:
Drawing No: Date:
Ministry of Public Works, GOL.
Funded by: USAID Liberia
Ministry of Public Works, Liberia.
Do Not Scale __ of __
GENERAL NOTES
Engineering Services for Rural Road Rehabilitation Project
P1
P2
OD/3
SECTION B - B: CROSS SECTION OF RCP FOUNDATION DETAIL
ELEVATION SHOWING REINFORCEMENT DETAIL FOR HEAD & WING WALL
Apron
Cut Off Wall
Mass Concrete C15 (100mm) W5
W2 W1
H1
H2200
Pipe Culverts: Single RCP in Active Streams (Elevations & Sections)
Wap
H1
H2
H1
H2
Mass Concrete Haunch (Continuous)
Mass Concrete C15 Bedding (Continuos)
Hw (Varies)
REINFORCEMENT DETAIL AT HEAD WALL
SINGLE LINE RCP CULVERTS IN ACTIVE STREAMS ON FIRM GROUND
1. All dimension are in millimeters unless otherwise specified
2. Standard Pipe Length shall be 1m.
3. Concrete cylinder strength at 28 days shall be Min 20 MPa.
4.Reinforcement shall be structural grade deformed bar with min strength 276 Mpa.
5. Pipe joint sealant shall be cement: mortar
6. OD is Outer Pipe Diameter
7. The engineer shall specify the length of the culvert structure.
8. Concrete cover to reinforcement shall be 40mm
9. All backfill to structures shall be done in layers not exceeding 200mm abd compacted with a plate compactor.
10. All culvert structure locations shall be cleaned of all loose materials and waste on completion of the work. No extra payment shall be done for the cleaning activity,
11. The engineer shall decide the most appropriate type of inlet & outlets structures.
12. Where compaction by Hand held Rammers is required for narrow spaces, backfill shall be done in layers not exceeding 150mm.
13. Wap - Apron Width, Lap - Apron Length at the Longer Side.
14. For reinforcement details, see bar bending summary sheet.
Culvert Size (Inside - Diam)
OD
Wing Wall Length (L)
Head Wall Height (Hw)
Head Wall Thickness Concrete
Backfill
Stone Masonary
Minimum Cover, (Hf)
1350 Min but Varies
1850 Min but Varies
2300 Min but Varies
2700 Min but Varies
N/A
N/A
Select Material
Imported Gravel or Approved Insitu Material
Apron
Length (Lap) Width (Wap)
3150 Min but Varies
Varies 1875
Varies 2550
Varies 3150
Imported Gravel or Approved Insitu Material
Imported Gravel or Approved Insitu Material
Imported Gravel or Approved
DS007
Wing Wall
Scale:Sheet No:
Revision No:
Drawn by:
Approved by:
Drawing Title & Detail:
Designed by:
Checked by:
Road Name: & Location
Client:
Drawing No: Date:
Ministry of Public Works, GOL.
Funded by: USAID Liberia
Ministry of Public Works, Liberia.
Do Not Scale __ of __
GENERAL NOTES
Engineering Services for Rural Road Rehabilitation Project
P1
P2
Mass Concrete Haunch (Continuos)
Road Level Reinforced Concrete
W5
W2 W1
H1
W2
H2
W1
Pipe Culverts: Double RCP in Active Streams (Elevations & Sections)
Min {(OD x 2) + 800}
Hw
Mass Concrete C15 Bedding (Continous along Culvert Length)
ELEVATION SHOWING HEAD & WING WALLS
A
A
OD/3
Head Wall
Apron
Cut Off Wall
Mass Concrete C15
Wap
H1
H2
H1
H2
Hw (Varies)
200200
REINFORCEMENT DETAIL AT HEAD WALL
SECTION B - B: CROSS SECTION OF RCP FOUNDATION DETAIL
ELEVATION SHOWING REINFORCEMENT DETAIL FOR HEAD & WING WALL
DOUBLE LINE RCP CULVERTS IN ACTIVE STREAMS ON FIRM GROUND
1. All dimension are in millimeters unless otherwise specified
2. Standard Pipe Length shall be 1m.
3. Concrete cylinder strength at 28 days shall be Min 20 MPa.
4.Reinforcement shall be structural grade deformed bar with min strength 276 Mpa.
5. Pipe joint sealant shall be cement: mortar
6. OD is Outer Pipe Diameter
7. The engineer shall specify the length of the culvert structure.
8. Concrete cover to reinforcement shall be 40mm
9. All backfill to structures shall be done in layers not exceeding 200mm abd compacted with a plate compactor.
10. All culvert structure locations shall be cleaned of all loose materials and waste on completion of the work. No extra payment shall be done for the cleaning activity,
11. The engineer shall decide the most appropriate type of inlet & outlets structures.
12. Where compaction by Hand held Rammers is required for narrow spaces, backfill shall be done in layers not exceeding 150mm.
13. Wap - Apron Width, Lap - Apron Length at the Longer Side.
14. For reinforcement details, see bar bending summary sheet.
200400
Culvert Size (Inside - Diam)
OD
Wing Wall Length (L)
Head Wall Height (Hw)
Head Wall Thickness Concrete
Backfill
Stone Masonary
Minimum Cover, (Hf)
1350 Min but Varies
1850 Min but Varies
2300 Min but Varies
2700 Min but Varies
N/A
N/A
Select Material
Imported Gravel or Approved Insitu Material
Apron
Length (Lap) Width (Wap)
3150 Min but Varies
Varies 1875
Varies 2550
Varies 3150
Imported Gravel or Approved Insitu Material
Imported Gravel or Approved Insitu Material
Imported Gravel or Approved Insitu Material
DS013
Scale:Sheet No:
Revision No:
Drawn by:
Approved by:
Drawing Title & Detail:
Designed by:
Checked by:
Road Name: & Location
Client:
Drawing No: Date:
Ministry of Public Works, GOL.
Funded by: USAID Liberia
Ministry of Public Works, Liberia.
Do Not Scale __ of __
GENERAL NOTES
Engineering Services for Rural Road Rehabilitation Project
Road Crown Level
Pipe Culverts: Double RCP in Embarkment Fill Locations (Elevations & Sections)
ELEVATION SHOWING END STRUCTURES AT EMBARKMENT FILL LOCATIONS
A
A
20004000 2000 4000
Varies with Culvert Diameter & Fill Height
C L
Approved Back Fill
B
B
SECTION A - A: LONGITUDINAL CROSS SECTION THROUGH CULVERT STRUCTURE IN AN EMBARKMENT FILL LOCATION
Hw
Min 300
Wc
W
WsWs
Head Wall
Compacted Hardcore (Stone) -100mm
Apron
Cut Off Wall
Mass Concrete C15 Compacted Hardcore (Stone)
Wap
H1
H2
H1
H2
Hw (Varies)
REINFORCEMENT DETAIL AT HEAD WALL
DOUBLE LINE PIPE CULVERTS IN EMBARKMENT SECTIONS
Min 300
Road Shoulder Break Point
Wing Wall Slope 1:2 Grouted Stone Pitching
Culvert Head Wall
Culvert Wing Wall
Laterite
Pipe Culvert
Mass Concrete Bedding
Length Dependent on Embarkment Height
1. All dimension are in millimeters unless otherwise specified
2. Standard Pipe Length shall be 1m.
3. Concrete cylinder strength at 28 days shall be Min 20 MPa.
4.Reinforcement shall be structural grade deformed bar with min strength 276 Mpa.
5. Pipe joint sealant shall be cement: mortar
6. OD is Outer Pipe Diameter
7. The engineer shall specify the length of the culvert structure.
8. Concrete cover to reinforcement shall be 40mm
9. All backfill to structures shall be done in layers not exceeding 200mm abd compacted with a plate compactor.
10. All culvert structure locations shall be cleaned of all loose materials and waste on completion of the work. No extra payment shall be done for the cleaning activity,
11. The engineer shall decide the most appropriate type of inlet & outlets structures.
12. Where compaction by Hand held Rammers is required for narrow spaces, backfill shall be done in layers not exceeding 150mm.
13. Wap - Apron Width, Lap - Apron Length at the Longer Side.
14. For reinforcement details, see bar bending summary sheet.
15. Wc - Carriage Way Width (Wearing Course), Ws - Shoulder Width, W - Road Width (Wc+2Ws)
Ground Slope 1:1.5
DS019
P2
Di
Scale:Sheet No:
Revision No:
Drawn by:
Approved by:
Drawing Title & Detail:
Designed by:
Checked by:
Road Name: & Location
Client:
Drawing No: Date:
Ministry of Public Works, GOL.
Funded by: USAID Liberia
Ministry of Public Works, Liberia.
Do Not Scale __ of __
GENERAL NOTES
Engineering Services for Rural Road Rehabilitation Project
ELEVATION SHOWING END STRUCTURES AT EMBARKMENT FILL LOCATIONS
A
A
20004000 2000 4000
Varies with Culvert Diameter & Fill Height
C L
Approved Fill
B
B
SECTION A - A: LONGITUDINAL CROSS SECTION THROUGH CULVERT STRUCTURE IN AN EMBARKMENT FILL LOCATION
Hw
Min 300
Wc
W
WsWs
SINGLE LINE PIPE CULVERTS IN EMBARKMENT SECTIONS
Wing Wall Slope 1:2
Head Wall
Compacted Hardcore (Stone) -100mm
Apron
Cut Off Wall
Mass Concrete C15 Compacted Hardcore (Stone)
Wap
H1
H2
H1
H2
Hw (Varies)
REINFORCEMENT DETAIL AT HEAD WALL
Road Crown Level
Road Shoulder Break Point
Min 300
Grouted Stone Pitching
Culvert Head Wall
Culvert Wing Wall
Laterite
Pipe Culvert
Mass Concrete Bedding
Length Dependent on Embarkment Height
Pipe Culverts: Single RCP in Embarkment Fill Locations (Elevation & Sections)
1. All dimension are in millimeters unless otherwise specified
2. Standard Pipe Length shall be 1m.
3. Concrete cylinder strength at 28 days shall be Min 20 MPa.
4.Reinforcement shall be structural grade deformed bar with min strength 276 Mpa.
5. Pipe joint sealant shall be cement: mortar
6. OD is Outer Pipe Diameter
7. The engineer shall specify the length of the culvert structure.
8. Concrete cover to reinforcement shall be 40mm
9. All backfill to structures shall be done in layers not exceeding 200mm abd compacted with a plate compactor.
10. All culvert structure locations shall be cleaned of all loose materials and waste on completion of the work. No extra payment shall be done for the cleaning activity,
11. The engineer shall decide the most appropriate type of inlet & outlets structures.
12. Where compaction by Hand held Rammers is required for narrow spaces, backfill shall be done in layers not exceeding 150mm.
13. Wap - Apron Width, Lap - Apron Length at the Longer Side.
14. For reinforcement details, see bar bending summary sheet.
15. Wc - Carriage Way Width (Wearing Course), Ws - Shoulder Width, W - Road Width (Wc+2Ws)Ground Slope 1: 1.5
DS016
C L
Di
Wing Wall
Scale:Sheet No:
Revision No:
Drawn by:
Approved by:
Drawing Title & Detail:
Designed by:
Checked by:
Road Name: & Location
Date:
Client:
Drawing No: Date:
Ministry of Public Works, GOL.
Funded by: USAID Liberia
Ministry of Public Works, Liberia.
Do Not Scale __ of __
GENERAL NOTES
Engineering Services for Rural Road Rehabilitation Project
Pipe Joint sealer
Road Level
ELEVATION SHOWING HEAD & WING WALLS
PLAN DETAIL OF PIPE
JOINT & BEDDING
Back Fill Hf
SECTION A - A: LONGITUDINAL CROSS SECTION
THROUGH CULVERT STRUCTURE
Pipe Culverts: Single RCP in Active Streams (Plan, Elevations & Sections)
Lap
Hw
Hf
B
B
OD + 400
Wing Wall Slope 1:2
Mass Concrete Haunch Mass Concrete Bedding
A
A
200200
SINGLE LINE RCP CULVERTS IN ACTIVE STREAMS ON FIRM GROUND
Pipe Culvert
Mass Concrete C15 (100mm)
Laterite Surface
Reinforced Concrete C20
1. All dimension are in millimeters unless otherwise specified
2. Standard Pipe Length shall be 1m.
3. Concrete cylinder strength at 28 days shall be Min 20 MPa.
4.Reinforcement shall be structural grade deformed bar with min strength 276 Mpa.
5. Pipe joint sealant shall be cement: mortar
6. OD is Outer Pipe Diameter
7. The engineer shall specify the length of the culvert structure.
8. Concrete cover to reinforcement shall be 40mm
9. All backfill to structures shall be done in layers not exceeding 200mm abd compacted with a plate compactor.
10. All culvert structure locations shall be cleaned of all loose materials and waste on completion of the work. No extra payment shall be done for the cleaning activity,
11. The engineer shall decide the most appropriate type of inlet & outlets structures.
12. Where compaction by Hand held Rammers is required for narrow spaces, backfill shall be done in layers not exceeding 150mm.
13. Wap - Apron Width, Lap - Apron Length at the Longer Side.
14. For reinforcement details, see bar bending summary sheet.
Culvert Size (Inside - Diam)
OD
Wing Wall Length (L)
Head Wall Height (Hw)
Head Wall Thickness Concrete
Backfill
Stone Masonary
Minimum Cover, (Hf)
1350 Min but Varies
1850 Min but Varies
2300 Min but Varies
2700 Min but Varies
N/A
N/A
Select Material
Imported Gravel or Approved Insitu Material
Apron
Length (Lap) Width (Wap)
3150 Min but Varies
Varies 1875
Varies 2550
Varies 3150
Imported Gravel or Approved Insitu Material
Imported Gravel or Approved Insitu Material
Imported Gravel or Approved
DS006
Pipe Joint Sealant
Ma ss co nc re te for cu t o ff w all an d a pr on
Scale:Sheet No:
Revision No:
Drawn by:
Approved by:
Drawing Title & Detail:
Designed by:
Checked by:
Road Name: & Location
Client:
Drawing No: Date:
Ministry of Public Works, GOL.
Funded by: USAID Liberia
Ministry of Public Works, Liberia.
Do Not Scale __ of __
GENERAL NOTES
Engineering Services for Rural Road Rehabilitation Project
PLAN SHOWING PIPE & REINFORCEMENT ARRANGEMENT
C L
Pipe Culvert
Mass Concrete C15 (100mm)
Back Fill Hf
B
B
Wing Wall Slope 1:1.5
DETAIL OF PIPE JOINT & BEDDING
Pipe Culverts: Double RCP in Active Streams (Plan, Elevations & Sections)
Concrece Haunch
Concrete Bedding
SECTION A - A: LONGITUDINAL CROSS SECTION
THROUGH CULVERT STRUCTURE
Wing Wall
Apron
Mass Concrete C15
H1
H2
H1
H2
Varies
REINFORCEMENT DETAIL AT WING WALL
Back Fill
DOUBLE LINE RCP CULVERTS IN ACTIVE STREAMS ON FIRM GROUND
Laterite Surface
Reinforced Concrete C20
1. All dimension are in millimeters unless otherwise specified
2. Standard Pipe Length shall be 1m.
3. Concrete cylinder strength at 28 days shall be Min 20 MPa.
4.Reinforcement shall be structural grade deformed bar with min strength 276 Mpa.
5. Pipe joint sealant shall be cement: mortar
6. OD is Outer Pipe Diameter
7. The engineer shall specify the length of the culvert structure.
8. Concrete cover to reinforcement shall be 40mm
9. All backfill to structures shall be done in layers not exceeding 200mm abd compacted with a plate compactor.
10. All culvert structure locations shall be cleaned of all loose materials and waste on completion of the work. No extra payment shall be done for the cleaning activity,
11. The engineer shall decide the most appropriate type of inlet & outlets structures.
12. Where compaction by Hand held Rammers is required for narrow spaces, backfill shall be done in layers not exceeding 150mm.
13. Wap - Apron Width, Lap - Apron Length at the Longer Side.
14. For reinforcement details, see bar bending summary sheet.
Culvert Size (Inside - Diam)
OD
Wing Wall Length (L)
Head Wall Height (Hw)
Head Wall Thickness Concrete
Backfill
Stone Masonary
Minimum Cover, (Hf)
1350 Min but Varies
1850 Min but Varies
2300 Min but Varies
2700 Min but Varies
N/A
N/A
Select Material
Imported Gravel or Approved Insitu Material
Apron
Length (Lap) Width (Wap)
3150 Min but Varies
Varies 1875
Varies 2550
Varies 3150
Imported Gravel or Approved Insitu Material
Imported Gravel or Approved Insitu Material
Imported Gravel or Approved Insitu Material
DS011
45°
Drawn by:
Approved by:
Drawing Title & Detail:
Designed by:
Checked by:
Road Name: & Location
Date:
Client:
Drawing No: Date:
Ministry of Public Works, GOL.
Funded by: USAID Liberia
Ministry of Public Works, Liberia.
Do Not Scale __ of __
GENERAL NOTES
Engineering Services for Rural Road Rehabilitation Project
Pipe Culverts: Typical Head & Wing Wall Details
Wing Wall
Apron
Mass Concrete C15
H1
H2
H1
H2
Varies
REINFORCEMENT DETAIL AT WING WALL ON
CULVERTS ON FIRM GROUND
Back Fill
Head Wall
Apron
Cut Off Wall
Mass Concrete C15
Wap
H1
H2
H1
H2
Hw (Varies)
REINFORCEMENT DETAIL AT HEAD WALLS
FOR CULVERTS SITUATED ON FIRM GROUND
Wing Wall
Compacted Hardcore (Stone) -100mm
Apron
Mass Concrete C15 Compacted Hardcore (Stone) 100mm
H1
H2
H1
H2
Varies
REINFORCEMENT DETAIL AT WING WALLS ON
CULVERTS LOCATED ON SOFT GROUND
Back Fill
Head Wall
Compacted Hardcore (Stone) -100mm
Apron
Cut Off Wall
Mass Concrete C15 Compacted Hardcore (Stone) 100mm
Wap
H1
H2
H1
H2
Hw (Varies)
REINFORCEMENT DETAIL AT HEAD WALLS FOR
CULVERTS SITUATED ON SOFT GROUND
TYPICAL HEAD & WING WALL STRUCTURAL DETAIL FOR PIPE CULVERTS
1. All dimension are in millimeters unless otherwise specified
2. Standard Pipe Length shall be 1m.
3. Concrete cylinder strength at 28 days shall be Min 20 MPa.
4.Reinforcement shall be structural grade deformed bar with min strength 276 Mpa.
5. Pipe joint sealant shall be cement: mortar
6. OD is Outer Pipe Diameter
7. The engineer shall specify the length of the culvert structure.
8. Concrete cover to reinforcement shall be 40mm
9. All backfill to structures shall be done in layers not exceeding 200mm abd compacted with a plate compactor.
10. All culvert structure locations shall be cleaned of all loose materials and waste on completion of the work. No extra payment shall be done for the cleaning activity,
11. The engineer shall decide the most appropriate type of inlet & outlets structures.
12. Where compaction by Hand held Rammers is required for narrow spaces, backfill shall be done in layers not exceeding 150mm.
13. Wap - Apron Width, Lap - Apron Length at the Longer Side.
14. For reinforcement details, see bar bending summary sheet.
Culvert Size (Inside - Diam)
OD
Wing Wall Length (L)
Head Wall Height (Hw)
Head Wall Thickness Concrete
Backfill
Stone Masonary
Minimum Cover, (Hf)
1350 Min but Varies
1850 Min but Varies
2300 Min but Varies
2700 Min but Varies
N/A
N/A
Select Material
Imported Gravel or Approved Insitu Material
Apron
Length (Lap) Width (Wap)
3150 Min but Varies
Varies 1875
Varies 2550
Varies 3150
Imported Gravel or Approved Insitu Material
Imported Gravel or Approved Insitu Material
Imported Gravel or Approved
DS017
CL
Di
INLET TYPE W1
Scale:Sheet No:
Revision No:
Drawn by:
Approved by:
Drawing Title & Detail:
Designed by:
Checked by:
Road Name: & Location
Date:
Client:
Drawing No: Date:
Ministry of Public Works, GOL.
Funded by: USAID Liberia
Ministry of Public Works, Liberia.
Do Not Scale __ of __
GENERAL NOTES
Engineering Services for Rural Road Rehabilitation Project
Pipe Culverts: Typical Inlet Types
TYPICAL PIPE CULVERT INLET TYPES
INLET TYPE W2
INLET TYPE D3
INLET TYPE D1
INLET TYPE D2
DS002
Active Water Stream
Working Area Temporary Dyke
Diversion Channel
Existing Road
Scale:Sheet No:
Revision No:
Drawn by:
Approved by:
Drawing Title & Detail:
Designed by:
Checked by:
Road Name: & Location
Client:
Drawing No: Date:
Ministry of Public Works, GOL.
Funded by: USAID Liberia
Ministry of Public Works, Liberia.
Do Not Scale __ of __
GENERAL NOTES
Engineering Services for Rural Road Rehabilitation Project
Pipe Culverts: Water Flow Management at Active Streams (900, 1200 & 1500mm Dia Culverts)
Working Area for Culvert SubStructure Works 1500
900 - 1200mm
H (Varies)
SECTION G - G
PERSPECTIVE VIEW OF TEMPORARY DYKE & WATER DIVERSION CHANNEL AT ACTIVE STREAM WATER
G G
1. The supervising engineer determines the need for a temporary dyke & water diversion channel, including their dimensions.
BD001
((2xOD)+1200)
Scale:Sheet No:
Revision No:
Drawn by:
Approved by:
Drawing Title & Detail:
Designed by:
Checked by:
Road Name: & Location
Date:
Client:
Drawing No: Date:
Ministry of Public Works, GOL.
Funded by: USAID Liberia
Ministry of Public Works, Liberia.
Do Not Scale __ of __
GENERAL NOTES
Engineering Services for Rural Road Rehabilitation Project
Depth Not Exceeding 1.5m
((2x OD) + 1200)
Di
Deep Excavations Exceeding 1.5m
To be excavated & sloped at 1:1 for stability
Finished Road Profile Level
Depth Not Exceeding 1.5m
Deep Excavations Exceeding 1.5m
To be excavated & sloped at 1:1 for stability
Finished Road Profile Level
1. All dimension are in millimeters unless otherwise specified
2. Standard Pipe Length shall be 1m.
3. Concrete cylinder strength at 28 days shall be Min 20 MPa.
4.Reinforcement shall be structural grade deformed bar with min strength 276 Mpa.
5. Pipe joint sealant shall be cement: mortar
6. OD is Outer Pipe Diameter
7. The engineer shall specify the length of the culvert structure.
8. Concrete cover to reinforcement shall be 40mm
9. All backfill to structures shall be done in layers not exceeding 200mm abd compacted with a plate compactor.
10. All culvert structure locations shall be cleaned of all loose materials and waste on completion of the work. No extra payment shall be done for the cleaning activity,
11. The engineer shall decide the most appropriate type of inlet & outlets structures.
12. Where compaction by Hand held Rammers is required for narrow spaces, backfill shall be done in layers not exceeding 150mm.
Pipe Culverts Trench Excavations
ALLOWABLE EXCAVATION WIDTHS FOR SINGLE & DOUBLE
REINFORCED CONCRETE PIPE CULVERTS
EXCAVATION WIDTHS FOR DOUBLE RCP WITH EXCAVATION
DEPTH NOT EXCEEDING 1.5m DEPTH EXCAVATION WIDTHS FOR A SINGLE LINE RCP WITH EXCAVATION
DEPTH NOT EXCEEDING 1.5m DEPTH
EXCAVATION WIDTHS FOR DOUBLE RCP WITH DEEP EXCAVATION
(EXCEEDING 1.5m DEPTH)
EXCAVATION WIDTHS FOR SINGLE LINE RCP WITH DEEP EXCAVATION
(EXCEEDING 1.5m DEPTH)
OD + 400
OD + 800
200 200
DS018
| Cover Page.pdf |
| Final Pipe Culvert Drawings-Model 1.pdf |
| Final Pipe Culvert Drawings-Model 2.pdf |
| Final Pipe Culvert Drawings-Model 3.pdf |
| Final Pipe Culvert Drawings-Model 4.pdf |
| Final Pipe Culvert Drawings-Model 5.pdf |
| Final Pipe Culvert Drawings-Model 6.pdf |
| Final Pipe Culvert Drawings-Model 7.pdf |
| Final Pipe Culvert Drawings-Model 8.pdf |
| Final Pipe Culvert Drawings-Model 9.pdf |
| Final Pipe Culvert Drawings-Model 10.pdf |
| Final Pipe Culvert Drawings-Model 11.pdf |
| Final Pipe Culvert Drawings-Model 12.pdf |
| Final Pipe Culvert Drawings-Model 13.pdf |
| Final Pipe Culvert Drawings-Model 14.pdf |
| Final Pipe Culvert Drawings-Model 15.pdf |
| Final Pipe Culvert Drawings-Model 16.pdf |
| Final Pipe Culvert Drawings-Model 17.pdf |
| Final Pipe Culvert Drawings-Model 18.pdf |
| Final Pipe Culvert Drawings-Model 19.pdf |
| Final Pipe Culvert Drawings-Model 20.pdf |
| Final Pipe Culvert Drawings-Model 21.pdf |
| Final Pipe Culvert Drawings-Model DS016.pdf |
File details come from the government source that posted it. Updated .