SECTION 21
GENERAL ARRANGEMENT
DRAWINGS
RTA Structural Drafting General Arrangement Drawings and Detailing Manual
OTB005 Issue 1 – Revision 1 (22 September 2010) Page 1 of 3
21 GENERAL ARRANGEMENT DRAWINGS
21.1 GENERAL
In all cases, Sheet No 2 of each set of bridge construction drawings prepared by the Authority, by Consultants for the Authority or for bridges that will become the property of the Authority, shall be the "General Arrangement” drawing. Where more than one sheet is necessary to show all the required details, a suite of General Arrangement drawings shall be created and the titles General Arrangement - Sheet A, General Arrangement - Sheet B etc shall be used. The “General Arrangement” gives an overall view of the bridge as it will appear once constructed and it shall include a plan, an elevation, a typical cross section, a site plan, a suitable skew diagram and/or vertical alignment diagram as appropriate and a list of "General Notes" which apply to the entire set of drawings. The General Arrangement drawing shall contain a note which describes the thickness and composition of the bituminous surfacing and waterproofing system on the structure. The General Arrangement drawing shall not contain any construction sequence information or any construction requirement information. Typical General Arrangement drawings for a variety of bridge construction types are shown in Figures 21.1.1(a), 21.1.1(b), 21.1.1(c) and 21.1.1(d).
21.2 PLAN VIEW
Plan views shall contain the following information:
- An outline of the structure - The watercourse, railway line or road under the structure - Any existing structures including the Reduced Level of the deck - The location of any public utilities - The Base centreline and Carriageway centreline as appropriate - Chainages on the Base centreline at the ends of deck and at each pier centreline
together with the reduced level at each location - The bearing or radius of the Base centreline as appropriate - For bridges over roads, the coordinates of the intersection point of the control line for
the bridge and the centreline of the underlying roadway, as well as the chainage on the control line for the bridge structure at that point
- The outline of parapets, footways and railings as appropriate - Joints in the deck surface - The position of name plates - The outlines of the structural elements ie abutments, piers, piles, footings and columns
etc where the scale of the drawing permits - Horizontal clearances as appropriate - The location of any vertical clearance referenced from the Elevation - Contours of the existing surface - Shapes and slopes of any embankments - Extent of any embankment protection required - Extent of any channel excavation required - The direction of flow of the watercourse or conventional tidal representation - The compass direction of True North indicated by a northpoint - The outline of concrete safety barrier extensions, approach slabs and steel safety
barriers in the approaches as appropriate
RTA Structural Drafting General Arrangement Drawings and Detailing Manual
OTB005 Issue 1 – Revision 1 (22 September 2010) Page 2 of 3
21.3 ELEVATION
Elevations shall contain the following information as appropriate:
- The outline of the elevation face of the structure projected from the Plan view showing foundation type, abutments, piers, superstructure and railings.
- The overall length of deck - The number and length of spans - The grade on the deck (represented by an arrow and %sign) or the reduced level of
the deck as appropriate - The normal water level or stream condition ie normally dry etc - Mean High Water Springs and Mean Low Water Springs for tidal waters. - Navigational clearances above Mean High Water Springs for navigable waterways - The calculated High Flood Levels - both the 1in 100 year ARI and 1 in 2000 year ARI
values - The reported High Flood Level, including the date of occurence - Vertical and horizontal clearances for structures over roads and/or railways including the
approximate design surface level of any road or railway line under the structure at the Base centreline
- Vertical and horizontal clearances for opening span bridges both open and closed - The existing surface on the Base centreline projected from contour lines. - Proposed cross section for channel excavation - Form and extent of any embankments and any required embankment protection
whether above or below the existing natural surface, parapet extensions, approach slabs and steel safety barriers in the approaches
- Contract levels of foundation elements - Bearing articlulation in the longitudinal direction represented by the letters “F” for fixed,
“R” for restrained and “E” for expansion - Expansion joint locations, represented by the letters “EJ” - Joints in the superstructure represented by a single heavy line - Chainages, existing surface levels and design surface levels at the ends of deck and at
each pier on the Control Line or Base centreline given in a Datum block beneath the Elevation
- Structure location with respect to nearest major towns ie FROM / TO 21.4 TYPICAL CROSS SECTION
Typical cross sections shall contain the following information:
- General form of the piers or abutments including foundation elements - Outline of the superstructure elements - Overall width of the superstructure - Width between concrete safety barriers - Height of traffic barrier railings above deck level - Widths of concrete safety barriers and/or footways - Clear width of footways - Base centreline and/or Carriageway centreline and/or Control Line - Crossfall or superelevation represented by an arrow and % sign - Type of wearing surface - Indication of orientation with respect to stream flow or compass point ie UPSTREAM
or DOWNSTREAM, NORTH or SOUTH.
21.5 SKEW DIAGRAM
RTA Structural Drafting General Arrangement Drawings and Detailing Manual
OTB005 Issue 1 – Revision 1 (22 September 2010) Page 3 of 3
Skew Diagrams shall be in the following format:
- A right angle triangle with the base parallel to the Control Line or Base Centreline, the hypotenuse parallel to the abutment and pier centrelines and with the skew angle designated at the apex of the triangle.
Skew Diagrams shall contain the following information:
- A dimension for the vertical side of the triangle (normally 10 000). A dimension for the base and hypotenuse of the triangle calculated from the vertical dimension and the skew angle
Conventional Skew Diagrams, for both right and left hand skews are shown in Figure 21.5. 21.6 VERTICAL ALIGNMENT DIAGRAM Vertical alignment diagrams shall contain the following information:
- The length of the curve - The grade on the road at each end of the curve - The chainage and reduced level at each end of the curve - The position of the bridge indicated by a heavy line together with a chainage and
reduced level at each end of the bridge - The chainage and reduced level of the intersection point of the approach grades on the
Base centreline.
21.7 SITE PLAN
- Base centreline, including the position of any Tangent Points etc - The position and chainage of each end of the bridge - The existing bridge (if applicable) including the RL of the existing deck - Survey Marks and Bench Marks (including RL) - Road boundaries - The location of any existing public utilities - The location and description of any nearby features that are likely to affect the
construction of the new bridge - Northpoint
21.8 GENERAL NOTES
The General Notes on the General Arrangement Drawing shall be in the format shown on the current issue of RTA Standard Bridge Drawing No RTAB029 with the blank spaces being filled in with the appropriate information. Any necessary additional information may be added as required.
GENERAL NOTES
DIMENSIONS ARE IN MILLIMETRES.
CHAINAGES AND REDUCED LEVELS ARE IN METRES.
E DENOTES EXPANSION BEARING.
F DENOTES FIXED BEARING.
REDUCED LEVELS ARE RELATED TO AUSTRALIAN HEIGHT DATUM.
SCALE: 0 105
2.55
15m
OR AS SHOWN.
QA RECORDS COMPLETED
DATE
APPROVED
DATE
THE BRIDGEWORKS DO NOT INCLUDE DEMOLITION OF EXISTING BRIDGE,
EMBANKMENT PROTECTION, STEEL SAFETY BARRIERS, SPRAYED SAM SEAL OR ANY
WORK IN THE APPROACHES EXCEPT THE APPROACH SLABS.
BASE Lc BEARING 8 56’ 39.3"
FIGURE 21.1.1(a)
EJ DENOTES EXPANSION JOINT.
PREPARED BY
BRIDGE ENGINEERING
110 GEORGE STREET
PARRAMATTA NSW 2150
PHONE (02) 8837-0802
FACSIMILE (02) 8837-0055
1500 DEEP PSC
SUPER "T" GIRDERS
HIGHWAY No 7 CITY OF DUBBO
BRIDGE OVER TALBRAGAR RIVER
AT TROY
GENERAL ARRANGEMENT
CAD No KP2F2111A.dgn
0007 381 BC 1234
2 0
B10846
PRELIMINARY
MANAGER, BRIDGE DESIGN PROJECTS
SENIOR BRIDGE ENGINEER (NEW DESIGN)
CLIENT
WESTERN REGIONAL OFFICE
51-55 CURRAJONG STREET PARKES
PO BOX 334 PARKES NSW 2870
PHONE (02) 6861-1444
FACSIMILE (02) 6861-1414
DATUM RL 240.000
CONTRACT LEVEL RL 243.000
CONTRACT LEVEL RL 241.000
CONTRACT LEVEL RL 245.000
CHAINAGE ALONG BASE Lc
APPROXIMATE EXISTING
SURFACE ON BASE Lc
LcCALCULATED HFL RL 262.5DESIGNED SURFACE
ON BASE RL 265.200
FROM DUBBOTO GILGANDRA
OVERALL LENGTH OF DECK = 101 300
33 500 33 500 33 500400
3000
APPROACH SLAB
400
3000
APPROACH SLAB
STEEL SAFETY BARRIER
THRIE BEAM
CH 182.600
NAME PLATE
ON PARAPET
APPROACH SLAB
APPROACH SLAB
NAME PLATE
ON PARAPET
CH 283.900CH 216.500
SPAN 1 SPAN 2 SPAN 3
E E EF
1
-
1
-
BEARING 8 56’ 39.3"BASE
CH 250.000
NWL RL 247.0
STEEL SAFETY BARRIER
THRIE BEAM
EMBANKMENT
PROTECTION SHALL
BE TAKEN 600mm
MINIMUM BELOW
EXISTING LEVEL (TYP)
EXISTING BRIDGE
(TO BE DEMOLISHED)
RL 265.2
RL 265.200
RL 265.200 RL 265.200 RL 265.200
FOUNDATION MATERIAL:
SAND/SANDY LOAM
EJ EJ
600 4500 4500 600
RC DRIVEN PILES
DESIGNED SURFACE
LEVEL RL 265.200
SECTION 1
-
100
DUCT
150
STORMWATER
PIPE
DOWNSTREAM UPSTREAM
150
STORMWATER
PIPE
Lc
15 SPRAYED SAM
DOUBLE DOUBLE SEAL
BASE
SITE PLAN
0 10 20 30 40 50m
510
NEW BRIDGE
FROM DUBBO TO GILGANDRA
ABUTMENT A CH 182.600 ABUTMENT B CH 283.900
GENERAL NOTES0 10m8642
12
DATE
QA RECORDS COMPLETED
APPROVED
DATEFIGURE 21. 1. 1(b)
PREPARED BY
BRIDGE ENGINEERING
110 GEORGE STREET
PARRAMATTA NSW 2150
PHONE (02) 8837-0802
FACSIMILE (02) 8837-0055
EXISTING BRIDGE 1961
BRIDGE No 643SCALES OR AS SHOWN.
DIMENSIONS ARE IN MILLIMETRES.
CHAINAGES AND REDUCED LEVELS ARE IN METRES.
REDUCED LEVELS ARE RELATED TO AHD.
R DENOTES RESTRAINED BEARING.
THE BRIDGEWORKS DO NOT INCLUDE SPRAYED SAM DOUBLE DOUBLE SEAL, STEEL
SAFETY BARRIER, EMBANKMENT FILL AND PROTECTION OR ANY WORKS IN THE
APPROACHES EXCEPT APPROACH SLABS.
MAIN ROAD No 246 SHIRE OF HUME
BRIDGE OVER FRENCH’S CREEK
AT 1.9km SOUTH OF HOWLONG
GENERAL ARRANGEMENT
CAD No KP2F2111B.dgn
0246 451 BC 1234
2 0
B10589
PRELIMINARY
MANAGER, BRIDGE DESIGN PROJECTS
SENIOR BRIDGE ENGINEER (NEW DESIGN)
NAME PLATE
ON PARAPET
APPROACH SLAB
CH 882.700
RL 142.300
NAME PLATE
ON PARAPET
APPROACH SLAB
CH 943.300
RL 142.300
BASE Lc
CH 895.000CH 907.000 CH 919.000 CH 931.000
1
-
1
-
SPAN 1 SPAN 2 SPAN 3 SPAN 4 SPAN 5DATUM RL 118.000
ELEVATION
APPROXIMATE EXISTING SURFACE LEVEL
ON BASE
CHAINAGE ON BASE
Lc
Lc
EMBANKMENT PROTECTION SHALL
BE TAKEN 600mm MINIMUM BELOW
EXISTING SURFACE LEVEL (TYP)
DECK RL 142.300
ON BASE Lc
300 300
OVERALL LENGTH OF DECK = 60 600
3000
APPROACH
SLAB
3000
APPROACH
SLAB
FROM
HOWLONG
TO
CHILTERN
SURFACE
PLAN
1 IN 100 YEAR ARI
HFL RL 140.500
CONTRACT LEVEL
RL 123.500
R R R R R R
STEEL SAFETY BARRIER
(THRIE BEAM) - TYP
W BEAM TO THRIE BEAM TRANSITION
IN ACCORDANCE WITH RTA DRAWING
No WD.R132.B04.A - TYP
POSTS AND BLOCKOUT PIECES IN APPROACHES IN ACCORDANCE
WITH RTA DRAWING No MD.R132.F02.A - TYP
APPROX LEVEL OF EMBANKMENT
FILL TO UNDERSIDE OF ABUTMENT
HEADSTOCK PRIOR TO DRIVING OF PILES
5 AT 12 000 = 60 000
NWL RL 247.0
Lc
1
-
UPSTREAM DOWNSTREAM
45004500
9000
0 1000
5001000
2000 3000mm
DESIGNED SURFACE
LEVEL RL 142.300
RADIAL SECTION
10 200
600600
DIA 100
UPVC PIPES
15mm SPRAYED SAM DOUBLE
DOUBLE SEALBASE
12m SPAN PSC
PLANKS - TYP
TP CH 799.397 TP CH 961.087
CH 882.700
ABUTMENT A
CH 943.300
ABUTMENT B
RL 142.300RL 142.300
SITE PLAN0
125
75m
25
25 50
EXISTING BRIDGE
RL 141.000
REDUCED LEVELS ARE TO AUSTRALIAN HEIGHT DATUM.
GENERAL NOTES
NOT TO SCALE
SKEW DIAGRAM
10
00
0
SITE PLAN
McGRATHS HILL
FROM TO
PITT TOWN
EXISTING TIMBER
3640
10642
FROM THE HAWKESBURY RIVER. THE PROBABLE 100 YEAR HFL IS RL 16.0M INCLUDING
* CALCULATED HFL BASED ON McKENZIES CREEK CATCHMENT WITHOUT BACKWATER
BACKWATER FROM THE HAWKESBURY RIVER, BASED ON LOWER HAWKESBURY RIVER
THE CONSTRUCTION OF THE SIDE TRACK, ROAD APPROACHES, GABIONS, GUARDRAIL,
THE BRIDGEWORKS INCLUDE THE DEMOLITION OF THE EXISTING BRIDGE BUT EXCLUDE
KERB EXTENSIONS, SUBSOIL DRAINS, ASPHALTIC CONCRETE AND CHANNEL SHAPING
NOT TO SCALE
VERTICAL ALIGNMENT
75000
RL
6.4
40
RL
6.3
51
CH
23
9.3
06
CH
89.3
06
RL
9.1
81
RL 6.191
IP CH 164.306
75000
RL
6.3
55
-3.987%
0.214%
McK
EN
ZIE
S
CREEK
FLOOD PLAIN ATLAS - MAY 1982 (RICHMOND TO WILBERFORCE).
AND PROTECTION.
FOR DETAILS OF NEW CHANNEL
ALIGNMENT, PROFILE AND
BATTER PROTECTION REFER
TO SHEET No 14
NOT TO SCALE
SCALES AS SHOWN.
FIGURE 21.1.1(c)
20 00 00"
DATE
QA RECORDS COMPLETED
APPROVED
DATE
BRIDGE RL 6.000
ABUTMENT A
CH 208.045
ABUTMENT B
CH 223.685
CONTROL LINE
R 2
20
0 0
00
LENGTH OF VC
DIMENSIONS ARE IN MILLIMETRES.
CHAINAGES AND REDUCED LEVELS ARE IN METRES.
CH
223.6
85 A
BU
TM
EN
T B
CH
208.0
45 A
BU
TM
EN
T A
PREPARED BY
BRIDGE ENGINEERING
110 GEORGE STREET
PARRAMATTA NSW 2150
PHONE (02) 8837-0802
FACSIMILE (02) 8837-0055
EXISTING TIMBER BRIDGE (1947)
RL 6.000 TO BE DEMOLISHED
BRIDGE NUMBER 589
PREPARED CHECKED
DESIGN
DRAWING
MANAGER, BRIDGE DESIGN PROJECTS
ISSUE DATE REVISION PREP AUTH
ROADS AND TRAFFIC AUTHORITY OF NSW
CHECK
TH
IS D
RA
WIN
G I
S C
ON
FID
EN
TIA
L A
ND
SH
AL
L O
NL
Y B
E U
SE
D F
OR
TH
E P
UR
PO
SE
OF
TH
E N
OM
INA
TE
D P
RO
JEC
T.
MAIN ROAD No 123 SHIRE OF HAWKESBURY
BRIDGE OVER McKENZIES CREEK
AT 1.2km NORTH OF McGRATHS HILL
GENERAL ARRANGEMENT
CAD No KP2F2111C.dgn
REGISTRATION No OF PLANS
SHEET No
ISSUE STATUS:
RTA BRIDGE NUMBER
0123 291 BC 0256
2 0
B10256
ISSUE
PRELIMINARY
MANAGER, BRIDGE DESIGN PROJECTS
SENIOR BRIDGE ENGINEER (NEW DESIGN)
DOWNSTREAM
LEVEL
DESIGN SURFACE
RAILING
TRAFFIC BARRIER
3% 3%
CONTROL LINE
CONTRACT LEVEL
UPSTREAM
(NOT IN BRIDGEWORKS)
SECTION 1
-
(INCLUDING AFFLUX)
1/125 DIA UPVC DUCT
FOR TELSTRA
1/150 DIA UPVC DUCT
325 325
0 5m4321
1 0.5
FOR AGL
2/125 DIA UPVC DUCTS FOR
2/125 DIA UPVC DUCTS FOR
INTEGRAL ENERGY
APPROXIMATE EXISTING SURFACE
15m PSC PLANKS
* 100 YEAR HFL RL 16.0 APPROX
INTEGRAL ENERGY
* CALCULATED 100 YEAR HFL RL 7.24
75 THICK ASPHALT
11 650
5 500 5 500
ELEVATION
PLAN
APPROACH SLAB
CONCRETE PARAPET
NAME PLATE ON
CONCRETE PARAPET
NAME PLATE ON
APPROACH SLAB
1.5 TO 1
PITT TOWN
TOFROM
McGRATHS HILL
SURFACE
APPROXIMATE EXISTING
APPROACH
3000 3000
CONTROL LINE
CONTRACT LEVEL
RL -5.700
F DENOTES FIXED BEARING
F E
I.L. RL 3.50
APPROXIMATE EXISTING
CHANNEL.
E DENOTES EXPANSION BEARING
ON CONTROL LINE
ON CONTROL LINE 6.3
45
6.0
226.6
85
6.3
55
5.3
223.6
85
6.4
20
5.2
20
8.0
45
6.4
40
6.1
20
5.0
45
CHAINAGE ON CONTROL LINE
EXISTING SURFACE LEVEL
DESIGN SURFACE LEVEL
DATUM RL -5.500
END OF APPROACH SLAB
ABUTMENT A
END OF APPROACH SLAB
RL 6.440 RL 6.355
RL 6.345RL 6.420
RL -2.800
CONTRACT LEVEL
1
-
-
1
6.0
EXISTING LIGHT POST
McK
EN
ZIE
S C
RE
EK
8700
EXISTING CHANNEL SHALL BE SHAPED TO THE
BASE OF CHANNEL SHALL BE PROTECTED WITH 230 THICK
ROCK MATTRESS AND EMBANKMENTS SHALL BE STABILISED
WITH JUTE MESH AND GRASSED TO PREVENT SCOUR
(NOT IN BRIDGEWORKS)
5.0
4.0
5.0
4.0
4.0
3.0
5.0
4.0
5.0
FOR DETAILS OF GABIONS RETAINING FILL, REFER
(8200 SQUARE TO CHANNEL)
SLAB SLAB
APPROACH W BEAM TO THRIE BEAM TRANSITION
IN ACCORDANCE WITH RTA DRAWING
No MD.R132.BO4.A (TYP)
POSTS AND BLOCKOUT PIECES
IN APPROACHES IN ACCORDANCE
WITH RTA DRAWING No MD.R132.FO2.A
(TYP)
0 5m4321
1 0.5
0 5m4321
1 0.5
OVERALL LENGTH OF DECK ON CONTROL LINE 15 640
R 2
20
0 0
00
TO ROAD PLANS REG No 0181 091 BA 2500.
TRAPEZOIDAL PROFILE AS SHOWN ON SHEET No 14
CH 205.045
CH 208.045
CH 223.685
CH 226.685
ABUTMENT B
320 15000 320
END OF DECK END OF DECK
FOUNDATION MATERIAL:
SAND / SANDY CLAY
EJ
EJ DENOTES EXPANSION JOINT
LENGTH OF CURVE = 250 000
VERTICAL CURVE DIAGRAM
NOT TO SCALE
GENERAL NOTES0 10m8642
12
AB
UT
ME
NT
A
CH
64
1.2
10
AB
UT
ME
NT
B
CH
70
5.9
10
BRIDGE
LOCATION EN
D O
F C
UR
VE
CH
82
5.0
00
ST
AR
T O
F C
UR
VE
CH
57
5.0
00
IP C
H 7
00
.00
0
RL
27
1.5
00
5.9422%
1.7236%
2
CLIENT
SOUTH WEST REGIONAL OFFICE
1 SIMMONS STREET WAGGA WAGGA
PO BOX 484 WAGGA WAGGA NSW 2650
PHONE (02) 6938-1111
FACSIMILE (02) 6938-1183
PREPARED BY
BRIDGE ENGINEERING
110 GEORGE STREET
PARRAMATTA NSW 2150
PHONE (02) 8837-0810
FACSIMILE (02) 8837-0055
FIGURE 21.1.1(d)
SCALE OR AS SHOWN.
DIMENSIONS ARE IN MILLIMETRES.
CHAINAGES AND REDUCED LEVELS ARE IN METRES.
REDUCED LEVELS ARE RELATED TO AHD .
E DENOTES EXPANSION BEARING. F DENOTES FIXED BEARING.
EJ DENOTES EXPANSION JOINT.
BRIDGEWORKS DO NOT INCLUDE EXCAVATION TO EXCAVATED ROCK SURFACE
AND HW2 FINISHED DESIGN LEVELS, TREATMENT OF EXCAVATED ROCK SURFACE,
ASPHALT, STEEL SAFETY BARRIER OR ANY WORK IN THE APPROACHES EXCEPT
FOR APPROACH SLABS.
PREPARED CHECKED
DESIGN
DRAWING
ISSUE DATE REVISION PREP AUTH
ROADS AND TRAFFIC AUTHORITY OF NSW
CHECK
TH
IS D
RA
WIN
G I
S C
ON
FID
EN
TIA
L A
ND
SH
AL
L O
NL
Y B
E U
SE
D F
OR
TH
E P
UR
PO
SE
OF
TH
E N
OM
INA
TE
D P
RO
JEC
T.
HIGHWAY No 2 SHIRE OF GUNDAGAI
BRIDGE OVER HIGHWAY No 2
AT 82.4km SOUTH OF YASS
GENERAL ARRANGEMENT
REGISTRATION No OF PLANS
SHEET No
ISSUE STATUS:
RTA BRIDGE NUMBER
0002 246 BC 2140
AISSUE
FOR CONSTRUCTION
CAD No D246GA.dgn
MANAGER, BRIDGE DESIGN PROJECTS
DATE
MANAGER, BRIDGE DESIGN PROJECTS
QA RECORDS COMPLETED
AND DRAWINGS RECOMMENDED
FOR APPROVAL
APPROVED
DATE
SENIOR BRIDGE ENGINEER (NEW DESIGN)
B10256
SECTION 1
-
0 1000
5001000
2000 3000mm
9 400
600
3.0% 3.0%
STEEL TRAFFIC
BARRIER RAILING
SAFETY SCREEN
PSC VOIDED SLAB
BRIDGE ¶
600
CONTRACT LEVEL
RL 258.000
4 700 4 700
NORTHERN SIDE SOUTHERN SIDE
APPROX FINISHED SURFACE LEVEL
DIA 100
DUCTS - TYP
75mm THICK ASPHALT
AND WATERPROOF
MEMBRANE
1300 T
YP
1.5 TO 1
1.5 TO 1
ELEVATION
PLAN
MAIN ROAD
No 87
APPROXIMATEEXISTING
SURFACELEVEL
1
-
1
-
10 00010 000
DATUM RL 250.000
5450 M
IN
CL
EA
RA
NC
E
267.6
37
EXISTING SURFACE
LEVEL ON BRIDGE ¶
CHAINAGE ON
BRIDGE ¶
33 00031 000350 350
OVERALL LENGTH OF DECK ON BRIDGE ¶ = 64 700
3 000
APPROACH SLAB
3 000
APPROACH SLAB
269.0
66
27
0.4
05
705.9
10
672.5
60
641.2
10
CONTRACT LEVEL
RL 258.000
PIE
R ¶
AB
UT
ME
NT
A
EN
D O
F D
EC
K
AB
UT
ME
NT
B
EN
D O
F D
EC
K
SPAN 1SPAN 2
NO
RT
HB
OU
ND
CO
NT
RO
L L
INE
SOU
TH
BO
UN
D
CO
NT
RO
L L
INE
NO
RT
HB
OU
ND
CA
RR
IAG
EW
AY
SO
UT
HB
OU
ND
CA
RR
IAG
EW
AY
TO
YA
SS
FR
OM
YA
SS
FR
OM
GU
ND
AG
AI T
O G
UN
DA
GA
I
APPROACH SLAB
APPROACH SLAB
2 T
O 1
2 T
O 1
2 T
O 1
2 T
O 1
1.5 TO 1
1.5 TO 11.5 TO 1
1.5 TO 1
CONTRACT LEVEL
RL 264.095
CONTRACT LEVEL
RL 266.765
2 T
O 1
2 T
O 1
FROM
COOTAMUNDRA
DESIGN SURFACE
LEVEL ON BRIDGE ¶
BRIDGE ¶
271.3
273.8
276.5
CH 705.910
RL 270.405
CH 672.560
RL 269.066
CH 641.210
RL 267.637
BEARING 68%%d 42’ 35.2" ON BRIDGE ¶
STEEL SAFETY
BARRIER
F
E
E
26
9.4
88
682.5
60
27
4.8
STEEL SAFETY
BARRIER
SAFETY SCREEN
POSTS INSTALLED
TRULY VERTICAL
NO
RT
HB
OU
ND
CO
NT
RO
L L
INE
SOU
TH
BO
UN
D
CO
NT
RO
L L
INE
1 000
MIN EXCAVATED
ROCK SURFACE
EXCAVATED
ROCK SURFACE
1 000
MIN
FINISHED
DESIGN LEVEL
ON HIGHWAY No 2
TO HIGHWAY No 2
LOADING/UNLOADING
RAMPS
HIG
HW
AY
No
2
HIG
HW
AY
No
2
NAME PLATE
ON WINGWALL
NAME PLATE
ON WINGWALL
CH 662.582
E 241024.378
N 3145246.891
STEEL SAFETY BARRIERS IN
BRIDGE APPROACHES SHALL
BE IN ACCORDANCE WITH
RTA DRAWING No MD.R132.HO1.B
*
*
*
DENOTES PLAN LOCATION
POINT OF MINIMUM CLEARANCE
ON
EJ
EJ
’L2’
’L1’
10
00
0
SKEW ANGLE
RIGHT HAND SKEW
DIRECTION OF INCREASING CHAINAGE
’L2’
’L1’
10
00
0
SKEW ANGLE
DIRECTION OF INCREASING CHAINAGE
SKEW DIAGRAMS
IN BOTH CASES, ’L1’ AND ’L2’ ARE CALCULATED BY
THE USE OF THE GIVEN DIMENSIONS AND THE SKEW ANGLE
FIGURE 21.5
LEFT HAND SKEW