Appendix G Foul Water Drainage Calculations
23
Rockingham Phase 2 and 3 Barnsley 4652-2 Harworth Group Appendix G Foul Water Drainage Calculations
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Transcript of Appendix G Foul Water Drainage Calculations
Rockingham Phase 2 and 3
Barnsley
4652-2 Harworth Group
Appendix G Foul Water Drainage Calculations
Project:
Date: 09.12.2019 Job No. Sheet No. Rev
By: JDM
Checked:
Title:
Use L/Day No. Total (L/day)
General Housing 0.0 0.00
0.000 l/s (6DWF+10%)
0.000 l/s (1xDWF)
Domestic Flow Area (ha)
Commercial 28.000
Trade Effluent Area (ha)
Normal 0.000
Wet 0.000
16.800 l/s
Domestic +Trade Area (ha)
Commercial 0.000
Total flow domestic + trade effluent =
0.000
Flow l/s
Based on SFA allow 0.5 litres/second/hectare of
developable land for trade effluent normal
process and 1.0 litres/second/hectare of
developable land for wet process
16.800
0.000
Flow l/s
Design Assumptions based on HCA drawing
671.60 (90) 001 & 671.60 (90) 002
A14652-2
Preliminary FW Calculations Phase 2
ROCKINGHAM PHASES 2 AND 3
Residential Developments
Based on SFA rate of 4000.0 Litres/dwelling/day
Design Flow = Total/86400 Second =
4000 per dwelling
Commercial/Industrial Developments
Based on SFA allow 0.6 litres/second/hectare of
developable land for domestic flow
Based on SFA allow 0.7 litres/second/hectare of
developable land where proportion of wet
industry is not known
0.000
Flow l/s
Project:
Date: 09.12.2019 Job No. Sheet No. Rev
By: JDM
Checked:
Title:
Use L/Day No. Total (L/day)
General Housing 0.0 0.00
0.000 l/s (6DWF+10%)
0.000 l/s (1xDWF)
Domestic Flow Area (ha)
Commercial 10.000
Trade Effluent Area (ha)
Normal 0.000
Wet 0.000
6.000 l/s
Domestic +Trade Area (ha)
Commercial 0.000
Design Assumptions based on HCA drawing
671.60 (90) 001 & 671.60 (90) 002
A14652-2
Preliminary FW Calculations Phase 3
ROCKINGHAM PHASES 2 AND 3
Residential Developments
Based on SFA rate of 4000.0 Litres/dwelling/day
Design Flow = Total/86400 Second =
4000 per dwelling
Commercial/Industrial Developments
Based on SFA allow 0.6 litres/second/hectare of
developable land for domestic flow
Based on SFA allow 0.7 litres/second/hectare of
developable land where proportion of wet
industry is not known
0.000
Flow l/s
Total flow domestic + trade effluent =
0.000
Flow l/s
Based on SFA allow 0.5 litres/second/hectare of
developable land for trade effluent normal
process and 1.0 litres/second/hectare of
developable land for wet process
6.000
0.000
Flow l/s
Proposed Development Rockingham Phase 2, Barnsley.
Y20112 - Drainage Strategy
Appendix D JPG Attenuation Basin Drawing
Posts
Posts
Posts
Posts
Boll
So131.58
J11132.559
138.
5013
9.00
139.
5014
0.00
140.
5014
1.00
141.
5014
2.00
142.
5014
3.00
142.00142.50
143.00143.50
144.00
143.
50
144.
00
144.
50 145.
00
144.
00
144.
50
145.
00
132.50
133.00
133.50
134.00
134.50
135.00
135.50
136.00
136.50
136.50
137.00
137.00
132.
0013
2.50
133.
00
133.00
133.
50
133.50
134.
00
134.00
134.
50
134.50
135.
00
135.00
135.50
135.50
135.50
135.50
135.
50
135.50
136.
00
136.00
136.00
136.
00
136.00
136.00
136.
50
136.50
136.50
136.
50
136.50
136.50
137.
00
137.00
137.00
137.00
1:3.00
1:2.89
1:77.27
135.500m
135.100m
137.000m
Posts
Posts
Posts
Posts
PInv Ø1.16
PInv Ø0.3
WL
BH
Boll
TCL:
TCL:
TCL:
TCL:
TCL:
TCL:
TCL:
TCL:
TCL:
TCL:
TCL:
So
128.45
128.53
130.25
128.86
130.37
131.77
131.65
131.27
130.
10
130.92
131.73
132.86
132.46
132.25
131.96
131.94
132.05
132.39
132.18
131.82
131.82
131.86
131.99
132.06
132.48
132.36
137.29
137.61
136.15
136.11
138.76
136.72
137.43132.67
138.05
138.84
140.87
131.69
131.34
130.92
130.25
130.57
131.32
131.69
131.79
131.68
131.90
131.86131.62
131.17
130.80
130.37
129.86
129.30
129.04
130.18
130.22
130.64
131.87
131.22
132.44
132.57
132.52
131.77
130.93
131.49
131.81
132.06
131.94
132.05
132.03
132.00
132.06
132.20
132.46
132.79
132.74
132.43
132.24
132.93
132.96
133.14
132.99
133.00
131.21
133.77
133.94
134.42133.15
131.18
134.53
131.53
132.07
131.08 141.54
142.49
143.25
143.86
144.64145.05 145.87
146.32146.93 147.13
147.79
140.97
141.04
140.89
140.78
140.60
140.65
140.38
139.97
139.48
139.13
140.61
142.08
142.99
143.78
144.18 144.72 146.
54
145.
74
145.
11
143.03
144.70
144.80 145.32
132.71
132.00
131.76
132.43
132.26
132.27
132.27
132.87
133.35
133.62
133.84
134.32
134.58
135.05
135.34
135.91
142.08
142.04
141.97
142.09
142.12
142.06
141.85
141.46
141.08
142.78
143.25
143.58
143.85
143.59
143.44
143.10
142.83
142.88
143.61
143.83
144.33
144.84
145.50
145.31
144.89
144.40
143.79
144.70
145.31
145.92
146.54
146.69
146.63
146.22
147.58
147.36
147.16
146.78
146.26
145.63
147.14
147.68
148.05
148.09
148.21
147.29
130.81
131.70
131.59
130.66
131.
7113
1.80
130.
94
131.
88
132.
1113
1.01
131.74
131.14
131.59
131.20
131.85
131.17131.17
131.95132.11
131.13
131.15131.79
132.07
131.01
132.34
131.18
131.49131.90
131.50132.17
132.12
131.38
132.27 131.44
132.67
132.17
133.09
132.73132.44 132.35
131.
93
131.56131.03
131.15 131.67
131.21
131.36
131.05 131.63131.10
130.77
131.86
131.34
131.74131.98
132.14
132.05
PInv Ø0.45
131.42
130.83
PInv Ø0.225
131.58
Gy
Gy
Gy
132.43
132.36
132.28132.17
132.19132.19
132.73
132.30
132.70
132.95132.30
132.20
132.20
132.25
J11132.559
Post
Post
Post
Post
Posts
Post
Lp
WL
WL
WL
BH
TCL:
TCL:
TCL:
TCL:
TCL:
140.64
140.22
138.56
139.34
133.35
133.56
133.29
133.69
134.03
134.57
134.31
134.08
133.85
133.55
133.72
134.16
134.48
134.75
135.07
135.53
135.22
134.81
134.63
134.08
134.39
134.92
135.25
135.38
135.83
136.18
136.07
135.84
135.30
135.12134.84
135.59
136.01
136.50
136.04
135.56
135.29
135.51
135.87
136.02
135.88
135.57
135.28
134.96
134.77
134.45
134.04
133.73
133.58
133.43
133.22
133.05
132.98
132.79
133.20
133.24
135.
40
134.
45
133.
67
133.45
134.
16134.
36
133.
65
132.90
133.22
133.26
133.53
133.88
134.33
134.40
134.49
134.81
134.95
134.81
135.14
135.07
129.93
130.65
131.07
129.98
129.96
128.88
129.96
130.59
131.28
131.79132.02
132.04132.
6313
3.22
132.58
132.86
132.66
132.39
131.06
132.58
132.69
132.63
132.92
133.54
131.95
132.11
132.30
132.99
133.02
133.10
134.19
134.51
134.61
134.07
131.26
135.01
135.04
134.76
134.31
133.05
134.12
132.35
132.29
131.29
Run intovegetation
IL126.44
Ø1200
Ø1200
TFR B4
140.5
140.5
140.0
139.5
148.5
148.0
148.0
148.0
148.0
147.0
147.0
147.0
147.0
147.5
147.5
147.5
147.5
146.5
146.5
146.5146.5
146.5
146.0
146.0
146.0
146.0
146.0
146.0
145.5
145.5
145.5
145.5
145.5
145.5
145.5
145.0
145.0
145.0
145.0
145.0
145.0
145.0
145.0
144.5
144.5144.5
144.5
144.5
144.5
144.5
144.5
144.0
144.0
144.0
144.0
144.0
144.0
144.0
144.0
143.5
143.5
143.5
143.5
143.5
143.5
143.5
143.5
143.0
143.0
143.0
143.0
143.0
143.0
143.0
143.0
141.5
141.5
141.5
141.5
141.5
141.5
141.0
141.0
141.0
141.0
141.0
141.0
142.5
142.5
142.5
142.5
142.5
142.5
142.5
142.5
142.0
142.0
142.0
142.0
142.0
142.0
136.0
136.0136.0
136.0
135.5
135.5
135.5
135.5
134.0
134.0
133.0
133.5
134.5134.5
134.5
135.0
135.0
135.0
135.0
Run intovegetation
IL126.44
Ø1200
Ø1200
OSA
Existing Footpath to beretained
Pond
Pond
Pond
250K
80Posts
Posts
Posts
Posts
Boll
So131.58
J11132.559
34.7m SW 300 1:105.6m SW900 1:10
SWMH-CLILDp.
HB1137.00
135.0402.460
EXISTING FOUL W
ATER PIPE
LOCATION TO BE CONFRIMED
EXISTING SURFACE
WATER PIPE 1050m
mØ
EXISTING SURFACE
WATER PIPE 1050m
mØ
900Ø HEADWALL OUTLET REFERTO HEADWALL DETAIL 'HW2'
HYDROBREAK MANHOLE RESTRICTEDDISCHARGE IN TO EXISTING HIGHWAYDRAIN AT 62.2 L/S
300Ø HIGHWAY INLET REFER TOHEADWALL DETAIL 'HW1'
SURFACE WATER MANHOLE SCHEDULEREF. COVER LEVEL INVERT LEVEL SUMP DEPTH DEPTH EASTINGS NORTHINGS DIAMETER TYPE COVER NOTESHB1 137.00m 135.040m 0.500m 2.460m 435373.794 400827.606 2100Ø TYPE B 1200x600 - CLASS D400 FLOW CONTROL CHAMBER
NOTE: ALL INVERT LEVELS SHOWN ARE FOR THE OUT GOING PIPE, ALL PIPES SHALL BE LAID WITH LEVEL SOFFITS (UNLESS OTHERWISE INDICATED ON THE DRAWING)
900ØIL = 135.875m
150
9090
090
150
900ØSTANDARD PIPE
900ØROCKER PIPE
900ØBUTT PIPE
IL = 135.600m
MIN. 150 THICK GEN 3 CONCRETESURROUND TO PIPE UNTIL COVERTO SOFFIT IS GREATER THAN 0.9m.
PROPOSED GROUND PROFILE 1:3 MAX.
PCC HEADWALL BY ALTHONREF: SFA15 C
ALLOW FOR 300mm THICK GABIONMATRESS TO PROVIDE SCOURPROTECTION TO WATERCOURSE.
75mm TO 20mm HARD CLEAN STONE MIN. 300mm THICKANY SOFT FORMATION ENCOUNTERED TO BE TREATEDWITH 150mm NOMINAL SIZE STONE DRIVENT TO REFUSAL.
100mm THICK GEN 3 CONCRETE BLINDINGBELOW BASE OF HEADWALL.
HINGED SAFTEY GRILLE - BARS TO BE 50mmx 12mm AT 100mm CENTRES. GRILLE TO BEHINGED AT ONE SIDE AND ALLOW FOR APAD LOCK ON THE OTHER SIDE.
3 SIDED HANDRAIL.
500mm x 500mm CONCRETE TOE.
150
MIN
.
GROUND LEVEL AROUND EXTENT OF STRUCTURE ISTO BE RE-GRADED AS REQUIRED SO THAT THE PCCHEADWALL WALL AND BACK HAVE A MINIMUMUPSTAND ABOVE THE BANK LEVEL OF 150mm.RE-GRADED GROUND TO BE FINISHED WITHTOPSOIL AND SEEDED.
HW2SECTION THROUGH 900Ø SURFACE WATER OUTLET PIPE TO WATERCOURSE
SCALE 1:20
150
55
300
55
150
150
MIN
.
300ØSTANDARD PIPE
300ØROCKER PIPE
300ØBUTT PIPE
MIN. 150 THICK GEN 3 CONCRETESURROUND TO PIPE UNTIL COVERTO SOFFIT IS GREATER THAN 0.9m.
75mm TO 20mm HARD CLEAN STONE MIN. 300mm THICKANY SOFT FORMATION ENCOUNTERED TO BE TREATEDWITH 150mm NOMINAL SIZE STONE DRIVENT TO REFUSAL.
100mm THICK GEN 3 CONCRETE BLINDINGBELOW BASE OF HEADWALL.
131.210m
PCC HEADWALL BY ALTHONREF: SFA6 C
ALLOW FOR 300mm THICK GABIONMATRESS TO PROVIDE SCOURPROTECTION TO WATERCOURSE.
HINGED SAFTEY GRILLE - BARS TO BE 50mmx 12mm AT 100mm CENTRES. GRILLE TO BEHINGED AT ONE SIDE AND ALLOW FOR APAD LOCK ON THE OTHER SIDE.
3 SIDED HANDRAIL.
500mm x 500mm CONCRETE TOE.
PROPOSED GROUNDPROFILE 1:3 MAX.
GROUND LEVEL AROUND EXTENT OFSTRUCTURE IS TO BE RE-GRADED ASREQUIRED SO THAT THE PCC HEADWALLWALL AND BACK HAVE A MINIMUMUPSTAND ABOVE THE BANK LEVEL OF 150mm.RE-GRADED GROUND TO BE FINISHED WITHTOPSOIL AND SEEDED.
300ØIL = 131.360m
HW1SECTION THROUGH 300Ø SURFACE WATER OUTLET PIPE TO WATERCOURSE
SCALE 1:20
1000
3500
1000
3500
POND BEDLEVEL
VARIES VARIESTBC1:40 1:403
1
31
POND POND
31
31
COVAMAT EDGE ANCHOR, EDGE OF MAT TOBE BURIED IN 'V' DITCH & PINNED INTO PLACEWITH PINS @ 500 CTRS ALONG EDGE OF MAT.
PERIMETER TRENCH EXCAVATED INSUBGRADE & TRIMMED. 'BENTOFIX' MATTO COVER ENTIRE TRENCH FLOOR BUTNOT TO EXTEND UP REAR TRENCH WALL.
COVAMAT CS PRE SEEDED EROSION CONTROLMATTING FROM POND BED TO TOP OF EMBANKMENTLEVEL, INSTALLED TO MANUFACTURER'S DETAILS ON300mm TOPSOIL, TOPSOIL THICKNESS TO REDUCED TO150mm ABOVE LEVEL OF PERIMETER TRENCH.(SEED TOMATTING MIX TO LANDSCAPE ARCHITECTS DETAILS).
BENTOFIX 'NSP4900-1' POND LINER CAPPEDOFF WITH 300mm OF TOPSOIL, UP TO LEVELOF +100mm ABOVE 1:100 YR WATER LEVEL.LINER SUPPLIED BY NAUE GMBH&CO.
400
500
TOP OF LINERLEVEL
WATER LEVEL
BATTER BACK TO EXTISTINGGROUND LEVEL AT 1:3 MAX.
300 300
150
400
500
300
150
TBC
31
BATTER BACK TO EXTISTINGGROUND LEVEL AT 1:3 MAX.
31
TYPICAL SECTION THROUGH SURFACE WATER ATTENUATION PONDSCALE 1:25
P01 FIRST ISSUE. 28.02.20 LSG
P02 FURTHER DETAIL ADDED TO DRAINAGELAYOUT
30.04.20 RMR
P03 TYPICAL SECTION THROUGHATTENUATION POND ADDED.
13.05.20 JAC
DRAINAGE NOTES1. ALL BUILDING DRAINAGE WORKS SHALL BE CARRIED OUT IN
ACCORDANCE WITH BS EN 752:2008 DRAINAGE AND SEWERSYSTEMS OUTSIDE BUILDINGS, THE CURRENT BUILDINGREGULATIONS AND THE LOCAL AUTHORITY BUILDING CONTROLSPECIFICATIONS AND REQUIREMENTS.
2. ANY DRAINAGE TO BE PUT FORWARD FOR ADOPTION EITHERWITHIN THE SITE OR OUTSIDE SHALL BE CONSTRUCTED TO SEWERSFOR ADOPTION LATEST EDITION AND ANY SPECIFICREQUIREMENTS OF THE ADOPTING SEWERAGE/WATERAUTHORITY.
3. THE LOCATION, SIZE AND DEPTH OF ALL EXISTING DRAINS/SEWERSAND SERVICES SHALL BE ESTABLISHED BY THE CONTRACTORPRIOR TO THE COMMENCEMENT OF WORKS ON SITE. ANYDISCREPANCIES FROM THE INFORMATION INDICATED ON THESEDRAWINGS SHALL IMMEDIATELY BE BROUGHT TO THE ATTENTIONOF THE ENGINEER.
4. THE CONTRACTOR SHALL ALLOW FOR THE PROTECTION,TEMPORARY AND PERMANENT SUPPORT AND DIVERSION WORKSAS NECESSARY, TO ALL EXISTING SERVICES TO THE SATISFACTIONOF THE UTILITY COMPANIES.
5. THE CONTRACTOR SHALL ALLOW FOR DEALING WITH SURFACEWATER RUN OFF INTO EXCAVATIONS AND FROMGROUNDWATER BY MEANS OF SUMPS, PUMPING AND DEWATERING AS APPROPRIATE, IN ORDER TO KEEP THEEXCAVATION AS REASONABLY DRY AS POSSIBLE DURING THECONSTRUCTION OF THE WORKS.
6. ALL LEVELS AND DIMENSIONS SHALL BE VERIFIED ON SITE PRIORTO THE COMMENCEMENT OF ANY WORKS. ANY DISCREPANCIESSHALL IMMEDIATELY BE BROUGHT TO THE ATTENTION OF THEENGINEER.
7. ALL EXISTING DRAINAGE LOCATIONS AND LEVELS ARE TO BECONFIRMED BY THE CONTRACTOR AND THE ENGINEER NOTIFIEDBEFORE ANY DRAIN RUNS ARE CONSTRUCTED.
8. THE CONTRACTOR SHALL IMMEDIATELY NOTIFY THE ENGINEERSHOULD ANY EXISTING LIVE DRAINAGE BE FOUND WITHIN THE SITEBOUNDARY SERVING ADJACENT PROPERTIES.
9. ALL EXISTING DRAINAGE WITHIN THE SITE NOT REQUIRED FOR THENEW DEVELOPMENT SHALL BE ABANDONED. DRAINS AND SEWERLESS THAN 1.500m DEEP WHICH ARE IN OPEN GROUND SHOULDAS FAR AS IS PRACTICABLE BE FULLY REMOVED ALL OTHER PIPESSHOULD BE SEALED AT BOTH ENDS AND AT ANY POINT OFCONNECTION, AND BE GROUT FILLED TO ENSURE THAT RATSCANNOT GAIN ACCESS. LARGER PIPES 225Ø OR ABOVE SHOULDBE GROUT FILLED TO PREVENT SUBSIDENCE OR DAMAGE TOBUILDINGS OR SERVICES IN THE EVENT OF COLLAPSE.
10. ALL MANHOLE/CHAMBER COVER LEVELS ARE APPROXIMATEAND SHALL BE ADJUSTED ON SITE TO SUIT THE PROPOSEDFINISHED LEVELS.
11. CONNECTIONS FROM WPC TO BE LAID AT 1/40 MINIMUM AND1/10 MAXIMUM GRADIENTS WHERE CONSTRUCTED UNDER THEBUILDING.
12. ALL PIPE CONNECTION FROM DRAINAGE CHANNELS ANDGULLIES SHALL BE 150Ø PIPES AT A MINIMUM GRADIENT OF 1:100WITH CLASS Z BEDDING UNO. ON THE DRAWING.
13. ALL PIPE CONNECTIONS FROM RWP'S TO BE 100Ø AT 1:60 MIN.WITH CLASS S BEDDING BENEATH THE BUILD AND CLASS Z UNDEREXTERNALS WHERE COVER IS LESS THAN 1.20m UNO. ON THEDRAWING (LOCATION OF RWP'S TO BE CONFIRMED BY THEARCHITECT SHOWN INDICATIVELY ON THE DRAWING).
14. ALL SYPHONIC RWP SYSTEMS TO BE DESIGNED BY OTHERS.PIPEWORK FROM DOWN PIPE TO FIRST MANHOLE TO BE SIZED/DESIGNED BY SYPHONIC SYSTEM DESIGNER. THE FIRST MANHOLETO HAVE AN OPEN GRATE COVER SAINT GOBAIN WATERWAY2000 - D400 OR SIMILAR APPROVED.
15. ALL PIPE CONNECTIONS FROM WPC'S TO FIRST CHAMBER SHALLBE 100Ø AT 1:40 MIN. WITH CLASS S BEDDING BENEATH THE BUILDAND CLASS Z UNDER EXTERNALS WHERE COVER IS LESS THAN1.20m UNO. ON THE DRAWING (LOCATION OF WPC' TO BECONFIRMED BY THE ARCHITECT AND TENANT (NOTE ADDITIONALCHAMBERS AND PIPE WORK MAYBE REQUIRED TO SUIT THETENANTS LAYOUT).
16. LOCATION SIZE AND SETTING OUT OF ALL RAINWATER ANDWASTE PIPE CONNECTIONS REFER TO THE RELEVANT ARCHITECT'SDRAWING FOR DESIGN PURPOSES THESE HAVE BEEN ASSUMED.
17. SUITABLY SIZED PETROL INTERCEPTORS MUST COMPLY WITH THEREQUIREMENTS OUTLINE IN PPG3 THESE INCLUDE SILT STORAGECAPACITY AND HIGH LEVEL HYDROCARBON ALARM WIREDBACK TO A MANNED OFFICE.
18. THE CONTRACTOR SHALL TAKE ALL NECESSARY SAFETYPRECAUTIONS IN LINE WITH CURRENT LEGISLATION WHENWORKING IN/NEAR CONFINED SPACES, DEEP EXCAVATIONSAND MACHINERY.
19. THE CONTRACTOR SHALL ALLOW FOR OBTAINING ALLAPPROVALS FROM THE RELEVANT AUTHORITIES WHEN WORKINGIN THE PUBLIC HIGHWAY AND ON THE SEWERAGE SYSTEM.
20. THE CONTRACTOR SHALL SUITABLY PROTECT PEDESTRIANS ANDVEHICLES FROM WORKING AREAS.
21. ALL PIPES SHALL BE LAID WITH LEVEL SOFFITS AND ALLMANHOLE/INSPECTION CHAMBER INVERT LEVELS SHOWN AREFOR THE OUT GOING PIPE (UNLESS OTHERWISE INDICATED IN THEDRAWING). PIPE RUNS SHALL BE LAID TO THE INVERT LEVELS ASDETAILED ON THE CONTRACT DRAWINGS. (NOTE THAT ALL PIPEGRADIENTS INDICATED ON THE DRAWINGS ARE APPROXIMATE).
22. ALL RAINWATER PIPES AND INTERNAL FOUL DRAINCONNECTIONS POINTS ARE TO BE SIZED & POSITIONED ASSHOWN ON THE ARCHITECTS DRAWINGS. THE CONTRACTORSHALL SUPPLY SUITABLE ADAPTORS AT PROPOSED GROUNDLEVELS OR FINISHED FLOOR LEVEL TO ALLOW CONNECTION OFTHE ABOVE GROUND DRAINAGE SYSTEM.(DETAILS OF THE ABOVEGROUND DRAINAGE SYSTEM AND ADAPTORS ALL BY OTHERS).
23. UPON COMPLETION OF THE DRAINAGE WORKS THECONTRACTOR SHALL CLEAN ALL DRAIN RUNS BY JETTING ANDREMOVE ALL DEBRIS FROM SITE. NO DEBRIS SHALL BE PERMITTEDTO ENTER THE PUBLIC SEWER AND/OR WATERCOURSE SYSTEM.ONCE THE DRAINAGE SYSTEM HAS BEEN FULLY CLEANED OUT ACCTV CAMERA CONDITION SURVEY SHALL BE UNDERTAKEN TOALL CONSTRUCTED DRAINAGE AND SEWER PIPES WITH THEFOOTAGE ISSUED TO THE ENGINEER FOR VIEW. THE AS BUILTINVERT AND COVER LEVELS SHALL BE RECORDED BY THECONTRACTOR AND PASSED ON TO THE ENGINEER FOR REVIEW.
REV DESCRIPTION DATE BY
Project
Architect
Checked
DO NOT SCALEN O T E S
©
Date Drawn
Drawing Title
JPG Project Ref
S2
THIS DRAWING IS THE PROPERTY OF JPG (LEEDS) LIMITEDREGISTERED IN ENGLAND No 4274608. COPYRIGHT RESERVED
I N F O R M A T I O N I S S U E
w w w . j p g . g r o u pLeeds 0113 263 1155BirminghamLondon
Scale at A0
ROCKINGHAM PHASE 2A & 2BHOYLAND
PHASE 2ATTENUATION POND OUTFALLDETAILS
THE HARRIS PARTNERSHIP
4652-2 AS SHOWN 23.04.20 RMR RMR
P034652-2 - JPG - SW - 00 - DR - D - 1451
PROPOSED TRADITIONAL TYPE ROAD GULLYWITH 150Ø OUTLET PIPE
PROPOSED FW DRAINS/SEWERS
EXISTING SW DRAINS/SEWERS
PROPOSED SITE BOUNDARY
EXISTING FW MANHOLE
EXISTING SW MANHOLE
LEGEND:
PROPOSED DRAINAGE CHANNEL
PROPOSED KERB DRAINAGE
PROPOSED FW MANHOLE
PROPOSED SW MANHOLE
RG
PROPOSED SW INTERCEPTOR
PROPOSED FW PUMPING STATION
PROPOSED SW DRAINS/SEWERS
PROPOSED FW RISING MAIN
WPC PROPOSED WASTE PIPE CONNECTION SIZE &LOCATION TBC BY OTHERS
RWP PROPOSED RAINWATER DOWN PIPE SIZE &LOCATION TBC BY OTHERS
RE PROPOSED RODDING EYE
EXISTING FW DRAINS /SEWERS
PROPOSED SW PUMPING STATION
PROPOSED SW RISING MAIN
ATTENUATION / OUTFALL LAYOUTSCALE 1:500
NOTE:HEADWALL TO BE FITTED WITH 1.1mHIGH GALVANIZED MILD STEELDOUBLE SAFTEY HANDRAILS,STANDARDS AND SAFETY CHAINS TOBE PROVIDED TO TOP OF OUTFALLHEADWALL AND WING WALLS.
NOTE:HEADWALL TO BE FITTED WITH SAFTEYGRILLE IN ACCORDANCE WITH SFA6th ADDITION FIGURE 2.2
Proposed Development Rockingham Phase 2, Barnsley.
Y20112 - Drainage Strategy
Appendix E Drainage Maintenance & Management Plan
4 Park Place Leeds LS1 2RU Tel: +44 (0)113 5323500 [email protected] www.rwo.group
DRAINAGE MAINTENANCE & MANAGEMENT PLAN
Rockingham Phase 2 Dearne Valley Parkway, Barnsley.
Reference VW/DMMP/Y20112.v1
Date
Version
May 2021
1
Proposed Development Rockingham Phase 2, Barnsley.
Y20112 – Drainage Maintenance and Management Plan
CONTENTS
Confidentiality Statement Document History
1.0 Introduction ................................................................................................................................................................ 1 2.0 Attenuation Basin .................................................................................................................................................... 2 3.0 Drains (Pipes) ............................................................................................................................................................ 2 4.0 Manholes/Access Chambers ........................................................................................................................... 3 5.0 Flow Control Chamber .......................................................................................................................................... 3 6.0 Health & Safety ......................................................................................................................................................... 3 7.0 Record History .......................................................................................................................................................... 3
APPENDICES
Appendix A Drainage Layout Plans
Appendix B Maintenance Visit Log Sheet
Appendix C Flow Control Details
Proposed Development Rockingham Phase 2, Barnsley.
Y20112 – Drainage Maintenance and Management Plan
Confidentiality Statement
This report is addressed to and may be relied upon by the following: Harworth Group Advantage House Poplar Way Rotherham South Yorkshire S60 5TR This report has been prepared for the sole use and reliance of the above-named parties and the owners of the new properties. This report shall not be relied upon or transferred to any other parties without the express written authorisation of RWO Group. No responsibility will be accepted where this report is used, either in its entirety or in part, by any other party.
Document History
VERSION PURPOSE/DESCRIPTION DATE 1 First Issue 21.05.2021
Proposed Development Rockingham Phase 2, Barnsley.
Y20112 – Drainage Maintenance and Management Plan Harworth Group 1
1.0 INTRODUCTION
This document details the inspection and maintenance specification for the drainage systems on the proposed development known as Rockingham Phase 2 on land off Dearne Valley Park, Barnsley. The document is intended to cover the maintenance of the main infrastructure drainage systems, and not the private plot drainage for each individual property. The document is laid out detailing:
A description of the drainage components and its use Maintenance requirements and frequencies Inspection requirements and frequencies
The activities listed are specific to the drainage elements on the Rockingham Phase 2 development and represents the minimum maintenance and inspection requirements. However additional tasks, or varied maintenance frequency may be required. This may include:
Measurement and recording of sediment levels Photographic recording of problem areas Increased frequency of litter/debris removal in areas identified as hotspots
This specification has been based upon the latest technical information for Sustainable Drainage Systems [SuDS]. The drainage system for the site is shown in Appendix A and comprises of the following assets: an attenuation basin for the rainfall events up to and including the 100-year plus climate change event, along with associated adoptable pipes, headwalls, and a flow control.
The attenuation basin forms part of the open space provision on the development with the primary role of providing surface water attenuation during periods rain. The basin receives surface water runoff from the roofs, roads and hardstanding areas of the development, with runoff being conveyed to the SUDS by a collector system (surface water sewer, gullies and rooftop guttering, swales). The attenuation basin is designed to be grassed lined structure with a varying permanent water depth, the water depth in the basin will temporarily increase following rainfall events. The management company will be responsible for the inspection and maintenance of the attenuation basin, including removal of material deposited within the system. Any gross contamination of the system will be, were practicable, contained, safely removed, and reported to the appropriate body. In such cases the management company will liaise with the Environment Agency and the Local Authority in prosecuting the polluter. As the attenuation basin becomes established, it will start to develop ecological importance with landscaping, this may result in wildlife being attracted to the area such as birds and invertebrates. Major works, for example de-silting of structures, will be scheduled to avoid the nesting season; spawning and the emergence of invertebrates, in doing so reduce the impact on the local environment. The attenuation basin will be subject to a 5-yearly review to establish if the current management regime is meeting the management objectives. This will require liaison with the Local Authority, Yorkshire Water, the Environment Agency and the Highways Authority. Any significant changes to the approved Management Plan will be first referred to the Planning Authority for approval.
Proposed Development Rockingham Phase 2, Barnsley.
Y20112 – Drainage Maintenance and Management Plan Harworth Group 2
The main piped foul and surface water drainage systems dwill be adopted by Yorkshire Water under a Section 104 agreement. The future maintenance of these elements will be subject to Yorkshire Water’s maintenance regime. The gullies and associated tails within the adoptable highway will be adopted by the local Highway Authority under a Section 38 agreement. The future maintenance of these elements will be subject to the Highway Authority’s maintenance regime. The following are RWO recommendations for future maintenance of the drainage systems.
2.0 ATTENUATION BASIN
The attenuation basin is designed to attenuate runoff for the development; it is a grassed structure with shallow side slopes. Due to the depth and size of the basin associated safety equipment and warning signs are to be provided by the maintenance company.
The flow rate is not restricted prior to entering the basin area but the flow is restricted to greenfield run off prior to leaving the site. The flow is to be restricted by a hydro brake flow control unit (the hydro brake is to be maintained by the management company). The hydro brake (flow control) is positioned within a flow control manhole structure prior to discharging to the watercourse.
The headwalls and pipes from the basin to the flow control manhole and to the watercourse will be private and the management company will be responsible for maintaining these. For operation and maintenance requirements refer to the maintenance log in Appendix B. For hydro-brake information refer to Appendix C.
3.0 DRAINS (PIPES)
Maintenance includes:
Local repair or local replacement of damaged pipes or other structures in order to maintain the functioning of the sewer.
Cleaning and removal of sediments, obstructions etc. to restore hydraulic capacity. Jetting/vacuum of sewers to be undertaken as often as necessary to remove silts and/or
ordinary debris. In the event that any extraordinary issues are encountered during an inspection, further
information may be required such as a CCTV survey report. Maintenance to be undertaken on a six-monthly schedule.
To avoid damaging the pipe, PSI pressures need to be verified before jetting of the sewers. Cleaning of drainage systems may require the temporary sealing of the system and careful collection of the effluent for disposal off site.
Proposed Development Rockingham Phase 2, Barnsley.
Y20112 – Drainage Maintenance and Management Plan Harworth Group 3
4.0 MANHOLES/ACCESS CHAMBERS
All manhole covers should be lifted, and the manholes visually inspected for silt, debris and signs of blockages within the drainage system. Check manhole covers and frames for damage and ensure they are correctly bolted together. This should be undertaken on a quarterly basis. Should any debris or blockages be detected, the manholes should be cleaned along with associated pipe runs which should be high pressure jetted and CCTV surveyed to verify/identify that no further remedial works are required.
5.0 FLOW CONTROL CHAMBER (FC)
The location of the flow control chamber is shown JPG drawing no. 4652-2-SW-00-DR-D-1451-S2-PO3 in Appendix A. The flow control chamber covers should be lifted, and the chamber visually inspected for silt, debris and signs of blockages within the drainage system. Check covers and frames for damage and ensure they are correctly bolted together. This should be undertaken on a quarterly basis. Should any debris/silt or blockages be detected, the chamber should be cleaned along with associated pipe runs which should be high pressure jetted and CCTV surveyed to verify/identify that no further remedial works are required. Care should be taken to ensure during high pressure jetting any debris/silt is not passed upstream into the underground storage structure.
6.0 HEALTH & SAFETY
The adopting authorities and management company shall, so far as is reasonably practical, provide and maintain systems of work that are safe and without risks to health. The systems of work shall cover all aspects of the works including above-ground operations (for example manhole location and traffic control), access to the sewer system and all operations in the confined space of the sewer system.
7.0 RECORD HISTORY
An inspection log shall be undertaken after every maintenance activity (Appendix B). A full site inspection of the drainage systems shall be undertaken at least annually to confirm the maintenance requirements if no specific frequency is detailed. Details of this shall be recorded in the inspection log (Appendix B). This log will be held by the management company and submitted to the LLFA if required.
Andrew Fairburn
For and behalf of RWO Group
Proposed Development Rockingham Phase 2, Barnsley.
Y20112 – Drainage Maintenance and Management Plan
Appendix A Drainage Layout Plans
B
H
T
C
L
:
T
C
L
:
T
C
L
:
DC - CHANNEL TO BE D400 COVER CLASS
GATIC DC - CHANNEL TO BE E600 COVER CLASS
GATIC DC - CHANNEL TO BE D400 COVER CLASS
GATIC DC - CHANNEL TO BE E600 COVER CLASS
GATIC DC - CHANNEL TO BE D400 COVER CLASS
GATIC DC - CHANNEL TO BE D400 COVER CLASS
GATIC DC - CHANNEL TO BE D400 COVER CLASS
G
GATIC DC - CHANNEL TO BE D400 COVER CLASSGATIC DC - CHANNEL TO BE D400 COVER CLASS
G
G
GG
GG
G
G
GG
G
FOUL POP-UP AND RAINWATER PIPEPOSITIONS TO BE CONFIRMED BY
THE ARCHITECT
G
FOUL POP-UP AND RAINWATERPIPE POSITIONS TO BE CONFIRMED
BY THE ARCHITECT
FOUL POP-UP AND RAINWATER PIPEPOSITIONS TO BE CONFIRMED BY
THE ARCHITECT
G
G
G
DC
GG
G
G
G
HW1CL 149.326IL 148.446
HW2CL 149.352IL 147.852
1.000 150Ø 1:22 17.720m VC
SW1CL 149.148IL 145.984
1.001 150Ø 1:14 22.975m VC
SW2CL 148.931IL 145.388
1.002 450Ø 1:38 22.459m CON
SW3CL 148.525IL 145.109
1.003 450Ø 1:250 45.243m CON
SW4CL 148.030IL 144.918
1.004 450Ø 1:250 53.382m CON
SW6CL 147.214IL 144.482
1.005 525Ø 1:250 90.187m CON
FW1CL 149.093IL 146.563
FW2CL 148.835IL 145.619
1.000 150Ø 1:30 28.050m VC
FW3CL 148.450IL 145.281
1.001 150Ø 1:125 42.251m VC
FW4CL 147.820IL 144.730
1.002 150Ø 1:125 68.820m VC
FW6CL 147.434IL 144.419 1.003 150Ø 1:140 43.535m VC
1.004 150Ø 1:140 65.384m VC
G
FOUL POP-UP AND RAINWATER PIPEPOSITIONS TO BE CONFIRMED BY
THE ARCHITECT
FOUL POP-UP AND RAINWATER PIPEPOSITIONS TO BE CONFIRMED BY
THE ARCHITECT
FWMH
CL 14
8.243
IL 14
7.249
FWMH
CL 14
8.307
IL 14
6.990
150Ø
1:12
5FW
MHCL
148.2
34IL
146.7
75
150Ø
1:15
0
150Ø 1:150
FWMH
CL 14
7.533
IL 14
6.333
FWMH
CL 14
8.041
IL 14
5.804
150Ø
1:12
5
150Ø
1:12
5
FWMHCL 147.415IL 146.050
150Ø
1:17
SWMH
CL 14
7.677
IL 14
6.467
300Ø
1:25
0
SWMHCL 148.397IL 146.237
SWMH
CL 14
9.125
IL 14
6.031
300Ø
1:25
0
450Ø
1:25
0
300Ø
1:25
0
AC
SWMHCL 148.210IL 146.767
300Ø 1:43
SWMH
CL 148.
643
IL 145.
645
225Ø
1:250
SWMH
CL 14
7.529
IL 14
5.887
225Ø
1:25
0 22
5Ø 1:
165
SWMH
CL 14
7.995
IL 14
5.077
450Ø
1:14
7
SWMHCL 147.503IL 145.561
SWMH
CL 14
7.518
IL 14
5.340
225Ø 1:250
300Ø
1:25
0 30
0Ø 1:
250
SWMHCL 147.513IL 145.556
SWMHCL 146.729IL 145.341
225Ø 1:250
300Ø
1:25
0
SWMH
CL 14
7.400
IL 14
5.033
300Ø
1:25
0
SWMHCL 147.565IL 145.674
150Ø 1:100
300Ø 1:51 SWICCL 147.438IL 145.938
SWICCL 147.356IL 145.714
225Ø 1:250 300Ø 1:250
CLASS 1 FULL RETENTIONINTERCEPTOR (DRAINAGECATCHMENT AREA c.2940m²)
CLASS 1 FULL RETENTIONINTERCEPTOR (DRAINAGECATCHMENT AREA c.2795m²)
CLASS 1 FULL RETENTIONINTERCEPTOR (DRAINAGECATCHMENT AREA c.2645m²)
CLASS 1 BYPASSSEPARATOR (DRAINAGECATCHMENT AREA c.1010m²)
CLASS 1 BYPASS SEPARATOR(DRAINAGE CATCHMENTAREA c.1270m²)
SWICCL 148.861
IL 146.143
300Ø 1:250
SWICCL 148.207IL 146.932
225Ø 1:250
SRWP SRWP
225Ø 1:47
AC
SRWPSRWP SRWP
AC
AC
OUTLETCL 148.182IL 146.910
AC
AC
OUTLETCL 147.250IL 145.925
225Ø 1:250
150Ø
1:10
150Ø
1:10
OUTLETCL 146.475IL 145.575OU
TLET
CL 14
6.875
IL 14
5.525
225Ø
1:25
0
300Ø
1:35
AC
AC
AC
ALL GATIC DRAINAGECHANNELS TO BE PROVIDEDWITH ACCESS POINT AT ENDSOF CHANNELS TO ALLOWRODDING/JETTING (TYPICALTO ALL CHANNELS)
ALL GATIC DRAINAGECHANNELS TO BE PROVIDEDWITH ACCESS POINT AT ENDSOF CHANNELS TO ALLOWRODDING/JETTING (TYPICALTO ALL CHANNELS)
ALL GATIC DRAINAGECHANNELS TO BE PROVIDEDWITH ACCESS POINT AT ENDSOF CHANNELS TO ALLOWRODDING/JETTING (TYPICALTO ALL CHANNELS)
SRWPSRWP
SWICCL 147.507IL 146.007
SWICCL 147.507IL 145.821
SWICCL 147.507IL 145.708
GATIC DC - CHANNEL TO BE D400 COVER CLASS
OUTLETCL 147.255IL 145.965
150Ø 1:100
225Ø 1:250
OUTL
ETCL
146.5
87IL
145.4
40
450Ø
1:60
300Ø 1:250 375Ø 1:250 375Ø 1:68
SWICCL 146.999
IL 145.417 300Ø 1:250
PIPE TAKEN UNDER/THRORETAINING WALL BASE
AC
AC
AC
PIPE TAKEN UNDER/THRORETAINING WALL BASE
OUTLETCL 146.475
IL 145.575
225Ø
1:25
0
DRAINAGE TAIL FOR FUTUREDEVELOPMENT
DRAINAGE TAIL FOR FUTUREDEVELOPMENT
225Ø PERFORATED LAND DRAIN
150Ø PERFORATED LAND DRAIN
150Ø PERFORATED LAND DRAIN
CATCH PITCL 147.800IL 146.800
CATCH PITCL 148.615IL 147.615
CATCH PITCL 149.450IL 148.450
225Ø PERFORATED LAND DRAIN
EXISTING LAND DRAINAGE DITCH
GATIC DC - CHANNEL TO BE E600 COVER CLASSGATIC DC - CHANNEL TO BE E600 COVER CLASS
150.000
149.000
140.000
145.000
150.000
138.000
139.000
141.000
142.000142.000
143.000
144.000
146.000
147.000
148.000149.000
151.000
152.000
153.000
153.000
154.000
145.000
150.000
155.000
143.000
144.000
146.000
147.000
148.000
149.000
151.000
152.000
153.000154.000
156.000157.000158.000
PRELIMINARY
HARWORTH GROUP
ROCKINGHAM PHASE 2BIRDWELL
PROPOSED DRAINAGE LAYOUTSHEET 1 OF 3
1:250 VW AMF 10.05.21
Y20112 D200 2
Date Revisions Rev
Dwg Status
CheckedDrawn
R W OCONSULTING ENGINEERS
Client
Project
Title
DateCheckedDrawnScale @ A0: DO NOT SCALE
Job No Dwg No Rev
NORTH EAST0191 2585632
YORKSHIRE0113 5323500
FIRST ISSUE 1VW AMF10.05.21
N
GENERAL SAFETY NOTES:1. WHERE THE BASE (ROAD BASE) HAS BEEN USED AS A TEMPORARY RUNNING SURFACE DURING THE
CONTRACT IT SHALL BE THOROUGHLY CLEANED AND POWER WASHED AS NECESSARY. AFTER DRYINGAND IMMEDIATELY BEFORE THE BINDER COURSE IS LAID A TACK COAT OF BITUMEN EMULSION CLASSA1-40 OR K1-40 TO BS434 SHALL BE APPLIED AT A RATE OF 0.35-0.55 LITRES/SQ METER.
2. ALL RADIUS KERBS WITH A RADIUS OF 12m OR LESS SHALL BE FORMED WITH PROPRIETARY RADIUSKERBS.
HEALTH & SAFETY:1. CONTRACTOR SHOULD BE AWARE OF GENERAL CONSTRUCTION RISKS TO PREVENT SLIPS, TRIPS AND
FALLS AND TAKE NECESSARY PRECAUTIONS WITHOUT SPECIAL INSTRUCTION.ROADS & DRAINAGE2. CONTRACTOR TO PROVIDE TRENCH SUPPORTS AS APPROPRIATE AND ENSURE THAT PLANT REMAINS A
SAFE DISTANCE FROM TRENCHES PRIOR TO INSTALLING DRAINAGE3. THE TIME THAT EXCAVATIONS ARE OPEN ON SITE SHOULD BE KEPT TO A MINIMUM AND ALL TRENCHES
SHOULD BE SURROUNDED BY A BARRIER.4. CONNECTIONS TO EXISTING SEWERS TO BE MADE BY APPROVED CONTRACTOR ONLY.5. CONTRACTOR TO MAKE OPERATIVES AWARE OF ASSOCIATED DANGERS TO HEALTH SUCH AS
LEPTOSPIROSIS (WEILS DISEASE) AND RECOMMENDED PRECAUTIONS. ADEQUATE WELFARE FACILITIESAND PROTECTIVE CLOTHING TO BE PROVIDED AS REQUIRED.
6. UNFINISHED MANHOLES MUST BE COVERED WITH LOAD BEARING MATERIALS AND SURROUNDED WITHBARRIER.
PIPES & CABLES7. CONTRACTOR TO OBTAIN ALL SERVICE RECORDS PRIOR TO WORKS COMMENCING.8. SERVICE RECORDS TO BE REFERRED TO PRIOR TO WORK COMMENCING. CONTRACTOR TO PROCEED
WITH CAUTION AND SERVICES TO BE LOCATED BY HAND DIG AND PROTECTED ACCORDINGLY.EXCAVATION/FILL9. CONTRACTOR TO ENSURE RELEVANT MEASURES ARE TAKEN TO KEEP PLANT AND PEOPLE A SAFE
DISTANCE FROM STEEP SLOPES DURING THE WORKS.10. CONTRACTOR TO ENSURE THAT PROCEDURES ARE IN PLACE TO KEEP PEOPLE A SAFE DISTANCE FROM
WORKING PLANT WHERE NECESSARY.11. CONTRACTOR TO REFER TO GROUND INVESTIGATION REPORT FOR CONTAMINATION TESTS AND TO
PROVIDE ADEQUATE WELFARE FACILITIES AND PROTECTIVE CLOTHING AS REQUIRED.
DRAINAGE SPECIFICATIONS FOR YORKSHIRE WATER
1. ALL ADOPTABLE SEWER WORKS AND MATERIALS TO BE IN ACCORDANCE WITH THE "DESIGN ANDCONSTRUCTION GUIDANCE UNDER THE CODE FOR ADOPTION AGREEMENTS", THE RELEVANTBRITISH/EUROPEAN AND YORKSHIRE WATER'S STANDARDS/REQUIREMENTS/ADDENDUM TO THEMECHANICAL AND ELECTRICAL SPECIFICATION AND KITEMARKED.
2. MANHOLE COVERS SHALL/MUST HAVE A CLEAR OPENING OF 600mm AND SHALL BE CLASS D400 TO BSEN 124 WITH 150mm DEEP FRAMES IN HIGHWAYS.
3. FILLED GROUND MUST BE FILLED AND CONSOLIDATED UNDER THE SUPERVISION AND TO THESATISFACTION OF YORKSHIRE WATER BEFORE ANY SEWER WORKS ARE CARRIED OUT.
4. YOKRSHIRE WATER IS NOT OBLIGED TO ACCEPT FILTER DRAIN/LAND DRAINAGE RUN-OFF INTO THEPUBLIC SEWER NETWORK OR ADOPTABLE DRAINAGE SYSTEM (DIRECTLY OR IN-DIRECTLY). ANALTERNATIVE METHOD OF DISPOSAL OF THE LAND DRAINAGE RUN-OFF WILL THEREFORE BE REQUIREDAND YOU WILL HAVE TO LIAISE WITH THE LOCAL AUTHORITY, LAND DRAINAGE SECTION WITH REGARDTO THE DISPOSAL OF THE FILTER DRAIN/LAND DRAINAGE RUN-OFF.
5. COVER SLABS MUST CARRY THE BSI KITEMARK OR WILL BE REJECTED BY YORKSHIRE WATERINSPECTOR. WHERE THE CLEAR OPENING OF THE KITEMARKED PRODUCT IS DIFFERENT TO THAT OFTHE COVER AND FRAME, A LOADING BEARING SLAB SHOULD BE FITTED ABOVE THE COVER SLAB TOBRING THE SIZE DOWN TO 600mm X 600mm FOR THE YORKSHIRE WATER SPECIFIED COVER SIZE.PLEASE REFER TO CONCRETE PIPE SYSTEMS ASSOCIATION (CPSA), 'TECHNICAL BULLETIN' ISSUEDAUTUMN 2004 FOR KITEMARKED COVER SLAB OPENING SIZES.
6. SULPHATE RESISTANT CEMENT (C20-DC2) AND PRECAST CONCRETE PRODUCTS MUST BE USED OR ALABORATORY REPORT PROVIDED PROVING THAT SUCH PRECAUTIONS ARE NOT NECESSARY.
7. THE ADOPTABLE SEWERS SHOULD BE A MINIMUM OF 1m AND MANHOLES 0.5m FROM KERB FACES ANDSERVICE MARGINS.
8. “SEWERS MUST HAVE 5 METRES CLEARANCE FROM TREES AND HEDGES (PLEASE ALSO REFER TOFIGURE 2.3 ON PAGE 33 IN “SEWERS FOR ADOPTION” 6TH EDITION FOR RESTRICTIONS ON TREEPLANTING ADJACENT TO SEWERS)”.
9. SEWERS TO BE LAID IN CLASS “S” BEDDING (150mm GRANULAR BED AND SURROUND). WHERE DEPTH OFCOVER TO TOP OF THE SEWER IS LESS THAN 1.2m IN HIGHWAYS AND VERGES (OR LESS THAN 900mm INNONE VEHICULAR ACCESS AREAS) THEN A CONCRETE SLAB SHOULD BE PROVIDE ABOVE GRANULARBED AND SURROUND.
10. BEDDING AND BACKFILL MATERIAL TO CONFORM TO THE REQUIREMENT OF WATER INDUSTRYSPECIFICATION 4-08-02 (TABLE A2).
11. THE CHAMBER SIZE OF MANHOLES WITH MORE THAN ONE CONNECTION IN THEM MAY NEED TO BEINCREASED AN INCREMENT TO ACCOMMODATE THE CONNECTIONS AND BENDS.
12. YORKSHIRE WATER POLICY IS NOT TO ACCEPT TYPE “C” BRICK MANHOLES AND 1050mm DIA MANHOLERINGS. INSTEAD IT IS PREFERRED THAT YOU USE A TYPE “B” MANHOLE WITH 1200mm DIA OR 1500mm DIARINGS, WITH THE OPENING SITED OVER THE CHANNEL WHERE DEPTH OF COVER TO PIPE SOFFIT IS 1 -1.5m.
13. ALL ADOPTABLE PLASTIC SEWER PIPES TO BE KITEMARKED (CERTIFIED TO WIS 4-35-01 AND BS/EN13476).ADOPTABLE PLASTIC SEWER PIPES TO BE LAID IN MAXIMUM 3 METRE LENGTHS UNLESS THERE IS ASPECIFIC OPERATIONAL NEED TO LAY LONGER LENGTHS. PLASTIC CHANNEL SECTIONS IN MANHOLESARE NOT ACCEPTABLE AND YORKSHIRE WATER WOULD PREFER CLAYWARE CHANNEL IN MANHOLES.PLASTIC CHANNELS ARE DIFFICULT TO SET IN CONCRETE BECAUSE THEY FLOAT AND A SATISFACTORYFINISH CANNOT BE OBTAINED ON THE BENCHING.
14. WHERE A B125 COVER AND FRAME HAS BEEN APPROVED, THIS MUST NOT BE COATED IN PLASTIC ANDMUST HAVE LIFTING EYES SUITABLY SIZED TO ACCOMMODATE STANDARD LIFTING KEYS. SCREW DOWNCOVERS ARE NOT ACCEPTABLE.
OTHER DRAINAGE NOTES
15. ALL PRIVATE DRAINAGE WORKS SHALL BE CARRIED OUT IN ACCORDANCE WITH BUILDING REGULATIONS2002 EDITION.
16. CONTRACTOR TO ESTABLISH POSITION SIZE AND DEPTH OF ALL EXISTING SEWERS AND SERVICESPRIOR TO COMMENCEMENT ON SITE.
17. THE CONTRACTOR SHALL ALLOW FOR THE PROTECTION, TEMPORARY AND PERMANENT SUPPORT, ANDTEMPORARY AND PERMANENT DIVERSION WORKS, AS NECESSARY TO ALL EXISTING SERVICES.
18. THE CONTRACTOR SHALL ALLOW FOR ALL TRAFFIC MANAGEMENT IN CONNECTION WITH ROAD ANDSEWER WORKS.
19. THE CONTRACTOR SHALL ALLOW FOR KEEPING SEWER TRENCHES AND EXCAVATIONS AS DRY ASPRACTICABLE BY PUMPING FROM TEMPORARY SUMPS AND DEWATERING AS APPROPRIATE. THE POINTAND METHOD OF DISCHARGE TO BE AGREED WITH THE DRAINAGE AUTHORITY.
20. FOR PIPE SPECIFICATION PLEASE REFER TO ADDITIONAL NOTES.21. VITRIFIED CLAY PIPES AND FITTINGS SHALL COMPLY WITH THE RELEVANT PROVISIONS OF BS EN295
AND BS 65 RESPECTIVELY AND BE KITEMARKED. ALL PIPES SHALL BE EXTRA STRENGTH TO BS 65 OREQUIVALENT BS EN295 PIPE CRUSHING STRENGTH.
22. PRECAST CONCRETE PRODUCTS SHALL COMPLY WITH THE RELEVANT PROVISIONS OF BS 5911 AND BEKITEMARKED. CONCRETE PIPES TO BE CLASS 120 UNLESS NOTED OTHERWISE.
23. GULLY GRATES AND FRAMES SHALL COMPLY WITH THE RELEVANT PROVISIONS OF BS EN124 AND BE OFA NON-ROCKING DESIGN WITH CAPTIVE HINGE ACCESS AND BE KITEMARKED. LOAD CLASS D400 FORROADS AND SERVICE YARD AREAS. CLASS C250 TO BE USED IN CAR PARKING AREAS.
24. BACKFILLING AND REINSTATEMENT TO TRENCHES IN PUBLIC HIGHWAYS SHALL BE IN ACCORDANCEWITH THE REQUIREMENTS AND SPECIFICATIONS OF THE ADOPTING AUTHORITY, OR, IN THE ABSENCEOF SUCH, IN ACCORDANCE WITH THE REQUIREMENTS OF "THE STREET WORKS REGULATIONS 1992" ANDRELEVANT PROVISIONS OF H.A.U.C. "SPECIFICATION FOR THE REINSTATEMENT OF OPENINGS INHIGHWAYS" JUNE 1992, BOTH UNDER SECTION 71 OF THE NEW ROADS AND STREET WORKS ACT 1991.
25. ALL TRADITIONAL RAINWATER PIPE DOWN COMERS TO DISCHARGE TO TRAPPED GULLIES.26. ALL SIPHONIC DRAINAGE DOWN COMERS TO MANUFACTURER SPECIFICATION.27. ALL ROAD GULLIES ARE TO BE TRAPPED GULLIES.28. ALL GULLY LEADS TO BE 150mm DIAMETER.29. ALL REDUNDANT EXISTING DRAINAGE TO BE GRUBBED UP OR GROUTED, ANY EXISTING LIVE DRAINAGE
SHOULD BE REPORTED TO THE ENGINEER AND RECONNECTED.30. ALL ROAD GULLIES & LEADS TO BE CLEARED OF DEBRIS UPON COMPLETION OF WORKS.31. THE CONTRACTOR MUST ENSURE THAT ANY OF THE EXISTING DRAINAGE WHICH IS LIVE IS KEPT CLEAR
OF DEBRIS AND SHOULD ALLOW FOR JETTING THROUGH THE NEW & EXISTING DRAINAGE UPONCOMPLETION.
32. CONTRACTOR TO TAKE MEASURES TO PROTECT HIS OPERATIVES WITH RESPECT TO THE PRESENCE OFGAS IN SEWER TRENCHES AND MANHOLES THROUGH THE USE OF GAS MONITORING EQUIPMENT ANDBREATHING APPARATUS AS REQUIRED.
33. CONTRACTOR TO APPLY FOR SEWER PERMITS AND ROAD OPENING PERMITS AS NECESSARY FROM THEAPPROPRIATE AUTHORITIES, PRIOR TO COMMENCING WORKS.
34. WHERE PLASTIC PIPES ARE INSTALLED PRIOR TO GETTING APPROVAL THEN A LIGHT LINE CCTV SURVEYAND REPORT (ELECTRONIC DEFLECTION TESTING) OF THE PROSPECTIVELY ADOPTABLE SEWERS AREREQUIRED PRIOR TO APPROVAL AT THE DEVELOPERS EXPENSE.
YORKSHIRE WATER NOTES
· ALL ADOPTABLE SEWERS TO BE BSI KITEMARK (CERTIFIED TO WIS 4-35-01)· ADOPTABLE SEWER PIPES TO BE LAID IN MAXIMUM 3 METRE LENGTHS UNLESS THERE IS A
SPECIFIC OPERATIONAL NEED TO LAY LONGER LENGTHS· PLASTIC CHANNEL SECTIONS IN MANHOLES ARE NOT ACCEPTABLE AND YORKSHIRE WATER
WOULD PREFER CLAYWARE CHANNEL IN MANHOLES. PLASTIC CHANNELS ARE DIFFICULT TO SETIN CONCRETE BECAUSE THEY FLOAT AND A SATISFACTORY FINISH CANNOT BE OBTAINED ON THEBENCHING.
· WHERE PLASTIC PIPES ARE INSTALLED INTO THE GROUND PRIOR TO APPROVAL, THEDEVELOPER WILL HAVE TO PROVIDE A LIGHT-LINE CCTV SURVEY AND REPORT OF THEPROSPECTIVELY ADOPTABLE SEWERS.
INDICATIVE SITE BOUNDARY
MAJOR CONTOUR
MINOR CONTOUR
PROPOSED ADOPTABLE SURFACE WATER
PROPOSED ADOPTABLE FOUL WATER
PROPOSED EASEMENT
PROPOSED ADOPTABLE HIGHWAY DRAIN
PROPOSED ADOPTABLE HIGHWAY GULLY
PROPOSED PRIVATE SURFACE WATER
PROPOSED PERFORATED LAND DRAIN PIPE
PROPOSED PRIVATE SURFACE WATER MANHOLE
PROPOSED PRIVATE SURFACE WATER PPIC
PROPOSED PRIVATE SW ACCESS CHAMBER (300Ø)
PROPOSED RODDING EYE
PROPOSED CLASS 1 SEPARATOR
PROPOSED DRAINAGE CHANNEL
PROPOSED PRIVATE GULLY
PROPOSED SIPHONIC RAINWATER PIPE
PROPOSED PRIVATE FOUL WATER
PROPOSED PRIVATE FOUL WATER MANHOLE
PROPOSED PRIVATE FW ACCESS CHAMBER (300Ø)
KEY
Metres
0 10 20
G
150Ø 1:150→
150Ø 1:150→
FW##CL 0.000IL 0.000
HW##CL 0.000IL 0.000
SWMHCL 0.000IL 0.000
SWICCL 0.000IL 0.000
150Ø 1:150→
SW##CL 0.000IL 0.000
RE
G
DC
FWMHCL 0.000IL 0.000
150Ø 1:150→
150Ø 1:150→
AC
DESIGN NOTES:
1. ALL WORKS TO COMPLY WITH CURRENT VERSION OF THE FOLLOWING DOCUMENTS:· DESIGN MANUAL FOR ROADS AND BRIDGES (DMRB)· SPECIFICATION FOR HIGHWAY WORKS (SHW)· LOCAL AUTHORITY DESIGN GUIDE AND SPECIFICATION2. PRIOR TO COMMENCING WORKS THE CONTRACTOR SHOULD INVESTIGATE AND LOCATE AS
NECESSARY ANY STATUTORY UNDERTAKERS EQUIPMENT WITHIN THE NEW ACCESS AND DISCUSSREQUIREMENTS FOR LOWERING/DIVERSION AND PROTECTION WITH THE RELEVANT UNDERTAKER.
3. ALL WORKS WITHIN THE PUBLIC HIGHWAY TO MEET LOCAL AUTHORITY REQUIREMENTS.CONTRACTOR TO APPLY FOR ROAD OPENING NOTICES ETC AS REQUIRED.
4. CBR VALUE NOT AVAILABLE. ROAD CONSTRUCTION DETAIL SUBJECT TO CONFIRMATION OF CBRVALUES. CONTRACTOR TO ALLOW FOR LAB TESTS TO BE UNDERTAKEN IN AGREEMENT WITHLOCAL AUTHORITY HIGHWAY ENGINEER PRIOR TO WORKS COMMENCING.
5. PROPOSED LEVELS HAVE BEEN BASED ON THE EARTHWORKS CONTRACT PLATEAU LEVELS BY JPGGROUP DATED SEPTEMBER 2020.
6. PROPOSED DRAWING BASED ON ARCHITECTURAL LAYOUT BY THE HARRIS PARTNERSHIPARCHITECTS REF: 12006-2-(P)111 RECEIVED APRIL 2021.
7. SLOPES GREATER THAN 1 IN 6 MAY REQUIRE STABILISATION. GEOTECHNICAL ENGINEER TO BECONTACTED TO CONFIRM REQUIREMENTS
DRAINAGE NOTES:
1. ALL PIPES 100Ø UNLESS OTHERWISE STATED.2. ALL PRIVATE FOUL WATER PIPES NOT ANNOTATED TO BE A MINIMUM OF 100Ø INSTALLED AT 1:40;
ALL PRIVATE SURFACE WATER PIPES NOT ANNOTATED TO BE A MINIMUM OF 100Ø INSTALLED AT1:100.
3. ALL PRIVATE TO ADOPTABLE CONNECTIONS 150Ø UNLESS OTHERWISE STATED.4. ALL PPICs OVER 1.2m DEEP TO BE PROVIDED WITH REDUCED ACCESS COVER AND FRAME IN
ACCORDANCE WITH BUILDING REGULATIONS PART H.5. ALL PPICS IN TRAFFICKED AREAS TO HAVE D400 COVERS & CONCRETE SURROUND.6. ALL INTERNAL PLOT DRAINAGE REQUIRES CONFIRMATION PRIOR TO CONSTRUCTION.7. CONTRACTOR TO CONFIRM MH COVER & INVERT LEVEL OF PROPOSED CONNECTION POINT PRIOR
TO CONSTRUCTION. ANY VARIATION TO BE REPORTED TO ENGINEER.8. THE INVERT LEVEL OF THE EXISTING SEWERS ARE TO BE VERIFIED PRIOR TO COMMENCEMENT OF
ANY DRAINAGE WORKS. ANY DISCREPANCY MUST BE NOTIFIED TO THE ENGINEER.9. EXISTING MANHOLES TO BE MODIFIED TO ACCOMMODATE THE PROPOSED LATERAL
CONNECTIONS. CONTRACTOR TO APPLY TO THE WATER AUTHORITY FOR THE SECTION 106APPROVAL TO MAKE THE CONNECTIONS. PIPES ARE TO BE LAID WITH COMMON INVERT LEVELS.
10. ALL STUB PIPES ARE TO BE CAPPED.11. ALL PIPES CONNECTIONS TO BE SOFFIT TO SOFFIT UNLESS STATED OTHERWISE. REFER TO
MANHOLE SCHEDULE FOR FURTHER INFORMATION.12. ALL PROPOSED FILTER DRAINS TO CONNECT BACK INTO PLOT DRAINAGE.13. STONE FILLED LAND DRAINS REQUIRED IN BACK GARDENS WHERE FALLING TOWARDS PROPERTY14. FLOOD DEFENSE WORKS APPLICATION OR EQUIVALENT TO BE MADE TO THE LOCAL AUTHORITY
PRIOR TO CARRYING OUT ANY WORKS TO THE EXISTING WATERCOURSE.
AC
SRWP
SEE
DRA
WIN
G -D
201 F
OR C
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OF P
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LATEST SITE PLAN ADDED 2VW AMF15.05.21
P
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1
3
2
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6
4
1
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4
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Ø
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.
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Ø
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GATIC DC - CHANNEL TO BE D400 COVER CLASS
G
FW8
CL 14
7.000
IL 14
3.406
FW7
CL 14
6.616
IL 14
3.952
FW9
CL 13
9.706
IL 13
8.206
FW11CL 136.125IL 134.708
FW10CL 138.601IL 137.101
FW12CL 136.249IL 134.207
FW13CL 136.025IL 133.487
1.007 150Ø 1:29 31.948m VC
1.008 150Ø 1:16 38.983m VC
1.009 150Ø 1:80 40.203m VC
1.010 150Ø 1:125 90.052m VC
1.00
5 150
Ø 1:1
40 76
.422m
VC
1.00
6 150
Ø 1:5
26.12
2m V
C
G
SW6CL 147.214IL 144.482
SW7CL 146.827IL 144.306 1.006 600Ø 1:250 43.986m CON
1.007 600Ø
1:111 17.243m
CON
1.004 150Ø 1:140 65.384m VC
SWMHCL 146.729IL 145.341
300Ø
1:25
0
SWMH
CL 14
7.400
IL 14
5.033
300Ø
1:25
0
CLASS 1 FULL RETENTIONINTERCEPTOR (DRAINAGECATCHMENT AREA c.2940m²)
ALL GATIC DRAINAGECHANNELS TO BE PROVIDEDWITH ACCESS POINT AT ENDSOF CHANNELS TO ALLOWRODDING/JETTING (TYPICALTO ALL CHANNELS)
GATIC DC - CHANNEL TO BE D400 COVER CLASS
150Ø
1:10
150Ø 1:10
225Ø 1:250
OUTL
ETCL
146.5
87IL
145.4
40
450Ø
1:60
AC
AC
DRAINAGE TAIL FOR FUTUREDEVELOPMENT
DRAINAGE TAIL FORFUTURE DEVELOPMENT
FORM SAND BAG TYPEHEADWALL AROUND PIPEIL(600Ø) 144.150
LAND DRAIN DITCHES FORMEDUNDER EARTHWORKSCONTRACT CONNECTED TONEW SWALE
EXISTING LAND DRAINAGE DITCH
EXISTING LAND DRAINAGE DITCH
SURFACE WATER DRAINAGESWALE 1.0m DEEP WITH 1:2SIDE SLOPES. BED LEVEL144.000
SURFACE WATER DRAINAGESWALE 1.0m DEEP WITH 1:2SIDE SLOPES. BED LEVEL144.000
SURFACE WATER DRAINAGESWALE 1.0m DEEP WITH 1:2SIDE SLOPES. BED LEVEL144.000
225Ø PERFORATED LAND DRAIN
CATCH PITCL 146.750IL 145.750
FORM SAND BAG TYPEHEADWALL AROUND PIPEIL(225Ø) 144.150
225Ø PERFORATED LAND DRAIN
NEW FOUL DRAIN TO FOLLOWROUTE OF PROPOSEDFOOTPATH
LAND DRAIN DITCHES FORMEDUNDER EARTHWORKSCONTRACT CONNECTED TONEW SWALE
140.000
145.000
141.000
142.000142.000143.000
144.000
146.000
147.000
140.000
145.000
145.000
137.000
138.000
139.000
141.000
142.000142.000
143.000
144.000
146.000
146.000
GREYED OUT LEVELS/CONTOURSINDICATE 2020-2021 EARTHWORKSCONTRACT LEVELS
DESIGN NOTES:
1. ALL WORKS TO COMPLY WITH CURRENT VERSION OF THE FOLLOWING DOCUMENTS:· DESIGN MANUAL FOR ROADS AND BRIDGES (DMRB)· SPECIFICATION FOR HIGHWAY WORKS (SHW)· LOCAL AUTHORITY DESIGN GUIDE AND SPECIFICATION2. PRIOR TO COMMENCING WORKS THE CONTRACTOR SHOULD INVESTIGATE AND LOCATE AS
NECESSARY ANY STATUTORY UNDERTAKERS EQUIPMENT WITHIN THE NEW ACCESS AND DISCUSSREQUIREMENTS FOR LOWERING/DIVERSION AND PROTECTION WITH THE RELEVANT UNDERTAKER.
3. ALL WORKS WITHIN THE PUBLIC HIGHWAY TO MEET LOCAL AUTHORITY REQUIREMENTS.CONTRACTOR TO APPLY FOR ROAD OPENING NOTICES ETC AS REQUIRED.
4. CBR VALUE NOT AVAILABLE. ROAD CONSTRUCTION DETAIL SUBJECT TO CONFIRMATION OF CBRVALUES. CONTRACTOR TO ALLOW FOR LAB TESTS TO BE UNDERTAKEN IN AGREEMENT WITHLOCAL AUTHORITY HIGHWAY ENGINEER PRIOR TO WORKS COMMENCING.
5. PROPOSED LEVELS HAVE BEEN BASED ON THE EARTHWORKS CONTRACT PLATEAU LEVELS BY JPGGROUP DATED SEPTEMBER 2020.
6. PROPOSED DRAWING BASED ON ARCHITECTURAL LAYOUT BY THE HARRIS PARTNERSHIPARCHITECTS REF: 12006-2-(P)111 RECEIVED APRIL 2021.
7. SLOPES GREATER THAN 1 IN 6 MAY REQUIRE STABILISATION. GEOTECHNICAL ENGINEER TO BECONTACTED TO CONFIRM REQUIREMENTS
DRAINAGE NOTES:
1. ALL PIPES 100Ø UNLESS OTHERWISE STATED.2. ALL PRIVATE FOUL WATER PIPES NOT ANNOTATED TO BE A MINIMUM OF 100Ø INSTALLED AT 1:40;
ALL PRIVATE SURFACE WATER PIPES NOT ANNOTATED TO BE A MINIMUM OF 100Ø INSTALLED AT1:100.
3. ALL PRIVATE TO ADOPTABLE CONNECTIONS 150Ø UNLESS OTHERWISE STATED.4. ALL PPICs OVER 1.2m DEEP TO BE PROVIDED WITH REDUCED ACCESS COVER AND FRAME IN
ACCORDANCE WITH BUILDING REGULATIONS PART H.5. ALL PPICS IN TRAFFICKED AREAS TO HAVE D400 COVERS & CONCRETE SURROUND.6. ALL INTERNAL PLOT DRAINAGE REQUIRES CONFIRMATION PRIOR TO CONSTRUCTION.7. CONTRACTOR TO CONFIRM MH COVER & INVERT LEVEL OF PROPOSED CONNECTION POINT PRIOR
TO CONSTRUCTION. ANY VARIATION TO BE REPORTED TO ENGINEER.8. THE INVERT LEVEL OF THE EXISTING SEWERS ARE TO BE VERIFIED PRIOR TO COMMENCEMENT OF
ANY DRAINAGE WORKS. ANY DISCREPANCY MUST BE NOTIFIED TO THE ENGINEER.9. EXISTING MANHOLES TO BE MODIFIED TO ACCOMMODATE THE PROPOSED LATERAL
CONNECTIONS. CONTRACTOR TO APPLY TO THE WATER AUTHORITY FOR THE SECTION 106APPROVAL TO MAKE THE CONNECTIONS. PIPES ARE TO BE LAID WITH COMMON INVERT LEVELS.
10. ALL STUB PIPES ARE TO BE CAPPED.11. ALL PIPES CONNECTIONS TO BE SOFFIT TO SOFFIT UNLESS STATED OTHERWISE. REFER TO
MANHOLE SCHEDULE FOR FURTHER INFORMATION.12. ALL PROPOSED FILTER DRAINS TO CONNECT BACK INTO PLOT DRAINAGE.13. STONE FILLED LAND DRAINS REQUIRED IN BACK GARDENS WHERE FALLING TOWARDS PROPERTY14. FLOOD DEFENSE WORKS APPLICATION OR EQUIVALENT TO BE MADE TO THE LOCAL AUTHORITY
PRIOR TO CARRYING OUT ANY WORKS TO THE EXISTING WATERCOURSE.
PRELIMINARY
HARWORTH GROUP
ROCKINGHAM PHASE 2BIRDWELL
PROPOSED DRAINAGE LAYOUTSHEET 2 OF 3
1:250 AMF VW 10.05.21
Y20112 D201 2
Date Revisions Rev
Dwg Status
CheckedDrawn
R W OCONSULTING ENGINEERS
Client
Project
Title
DateCheckedDrawnScale @ A0: DO NOT SCALE
Job No Dwg No Rev
NORTH EAST0191 2585632
YORKSHIRE0113 5323500
FIRST ISSUE 1AMF VW10.05.21
N
GENERAL SAFETY NOTES:1. WHERE THE BASE (ROAD BASE) HAS BEEN USED AS A TEMPORARY RUNNING SURFACE DURING THE
CONTRACT IT SHALL BE THOROUGHLY CLEANED AND POWER WASHED AS NECESSARY. AFTER DRYINGAND IMMEDIATELY BEFORE THE BINDER COURSE IS LAID A TACK COAT OF BITUMEN EMULSION CLASSA1-40 OR K1-40 TO BS434 SHALL BE APPLIED AT A RATE OF 0.35-0.55 LITRES/SQ METER.
2. ALL RADIUS KERBS WITH A RADIUS OF 12m OR LESS SHALL BE FORMED WITH PROPRIETARY RADIUSKERBS.
HEALTH & SAFETY:1. CONTRACTOR SHOULD BE AWARE OF GENERAL CONSTRUCTION RISKS TO PREVENT SLIPS, TRIPS AND
FALLS AND TAKE NECESSARY PRECAUTIONS WITHOUT SPECIAL INSTRUCTION.ROADS & DRAINAGE2. CONTRACTOR TO PROVIDE TRENCH SUPPORTS AS APPROPRIATE AND ENSURE THAT PLANT REMAINS A
SAFE DISTANCE FROM TRENCHES PRIOR TO INSTALLING DRAINAGE3. THE TIME THAT EXCAVATIONS ARE OPEN ON SITE SHOULD BE KEPT TO A MINIMUM AND ALL TRENCHES
SHOULD BE SURROUNDED BY A BARRIER.4. CONNECTIONS TO EXISTING SEWERS TO BE MADE BY APPROVED CONTRACTOR ONLY.5. CONTRACTOR TO MAKE OPERATIVES AWARE OF ASSOCIATED DANGERS TO HEALTH SUCH AS
LEPTOSPIROSIS (WEILS DISEASE) AND RECOMMENDED PRECAUTIONS. ADEQUATE WELFARE FACILITIESAND PROTECTIVE CLOTHING TO BE PROVIDED AS REQUIRED.
6. UNFINISHED MANHOLES MUST BE COVERED WITH LOAD BEARING MATERIALS AND SURROUNDED WITHBARRIER.
PIPES & CABLES7. CONTRACTOR TO OBTAIN ALL SERVICE RECORDS PRIOR TO WORKS COMMENCING.8. SERVICE RECORDS TO BE REFERRED TO PRIOR TO WORK COMMENCING. CONTRACTOR TO PROCEED
WITH CAUTION AND SERVICES TO BE LOCATED BY HAND DIG AND PROTECTED ACCORDINGLY.EXCAVATION/FILL9. CONTRACTOR TO ENSURE RELEVANT MEASURES ARE TAKEN TO KEEP PLANT AND PEOPLE A SAFE
DISTANCE FROM STEEP SLOPES DURING THE WORKS.10. CONTRACTOR TO ENSURE THAT PROCEDURES ARE IN PLACE TO KEEP PEOPLE A SAFE DISTANCE FROM
WORKING PLANT WHERE NECESSARY.11. CONTRACTOR TO REFER TO GROUND INVESTIGATION REPORT FOR CONTAMINATION TESTS AND TO
PROVIDE ADEQUATE WELFARE FACILITIES AND PROTECTIVE CLOTHING AS REQUIRED.DRAINAGE SPECIFICATIONS FOR YORKSHIRE WATER
1. ALL ADOPTABLE SEWER WORKS AND MATERIALS TO BE IN ACCORDANCE WITH THE "DESIGN ANDCONSTRUCTION GUIDANCE UNDER THE CODE FOR ADOPTION AGREEMENTS", THE RELEVANTBRITISH/EUROPEAN AND YORKSHIRE WATER'S STANDARDS/REQUIREMENTS/ADDENDUM TO THEMECHANICAL AND ELECTRICAL SPECIFICATION AND KITEMARKED.
2. MANHOLE COVERS SHALL/MUST HAVE A CLEAR OPENING OF 600mm AND SHALL BE CLASS D400 TO BSEN 124 WITH 150mm DEEP FRAMES IN HIGHWAYS.
3. FILLED GROUND MUST BE FILLED AND CONSOLIDATED UNDER THE SUPERVISION AND TO THESATISFACTION OF YORKSHIRE WATER BEFORE ANY SEWER WORKS ARE CARRIED OUT.
4. YOKRSHIRE WATER IS NOT OBLIGED TO ACCEPT FILTER DRAIN/LAND DRAINAGE RUN-OFF INTO THEPUBLIC SEWER NETWORK OR ADOPTABLE DRAINAGE SYSTEM (DIRECTLY OR IN-DIRECTLY). ANALTERNATIVE METHOD OF DISPOSAL OF THE LAND DRAINAGE RUN-OFF WILL THEREFORE BE REQUIREDAND YOU WILL HAVE TO LIAISE WITH THE LOCAL AUTHORITY, LAND DRAINAGE SECTION WITH REGARDTO THE DISPOSAL OF THE FILTER DRAIN/LAND DRAINAGE RUN-OFF.
5. COVER SLABS MUST CARRY THE BSI KITEMARK OR WILL BE REJECTED BY YORKSHIRE WATERINSPECTOR. WHERE THE CLEAR OPENING OF THE KITEMARKED PRODUCT IS DIFFERENT TO THAT OFTHE COVER AND FRAME, A LOADING BEARING SLAB SHOULD BE FITTED ABOVE THE COVER SLAB TOBRING THE SIZE DOWN TO 600mm X 600mm FOR THE YORKSHIRE WATER SPECIFIED COVER SIZE.PLEASE REFER TO CONCRETE PIPE SYSTEMS ASSOCIATION (CPSA), 'TECHNICAL BULLETIN' ISSUEDAUTUMN 2004 FOR KITEMARKED COVER SLAB OPENING SIZES.
6. SULPHATE RESISTANT CEMENT (C20-DC2) AND PRECAST CONCRETE PRODUCTS MUST BE USED OR ALABORATORY REPORT PROVIDED PROVING THAT SUCH PRECAUTIONS ARE NOT NECESSARY.
7. THE ADOPTABLE SEWERS SHOULD BE A MINIMUM OF 1m AND MANHOLES 0.5m FROM KERB FACES ANDSERVICE MARGINS.
8. “SEWERS MUST HAVE 5 METRES CLEARANCE FROM TREES AND HEDGES (PLEASE ALSO REFER TOFIGURE 2.3 ON PAGE 33 IN “SEWERS FOR ADOPTION” 6TH EDITION FOR RESTRICTIONS ON TREEPLANTING ADJACENT TO SEWERS)”.
9. SEWERS TO BE LAID IN CLASS “S” BEDDING (150mm GRANULAR BED AND SURROUND). WHERE DEPTH OFCOVER TO TOP OF THE SEWER IS LESS THAN 1.2m IN HIGHWAYS AND VERGES (OR LESS THAN 900mm INNONE VEHICULAR ACCESS AREAS) THEN A CONCRETE SLAB SHOULD BE PROVIDE ABOVE GRANULARBED AND SURROUND.
10. BEDDING AND BACKFILL MATERIAL TO CONFORM TO THE REQUIREMENT OF WATER INDUSTRYSPECIFICATION 4-08-02 (TABLE A2).
11. THE CHAMBER SIZE OF MANHOLES WITH MORE THAN ONE CONNECTION IN THEM MAY NEED TO BEINCREASED AN INCREMENT TO ACCOMMODATE THE CONNECTIONS AND BENDS.
12. YORKSHIRE WATER POLICY IS NOT TO ACCEPT TYPE “C” BRICK MANHOLES AND 1050mm DIA MANHOLERINGS. INSTEAD IT IS PREFERRED THAT YOU USE A TYPE “B” MANHOLE WITH 1200mm DIA OR 1500mm DIARINGS, WITH THE OPENING SITED OVER THE CHANNEL WHERE DEPTH OF COVER TO PIPE SOFFIT IS 1 -1.5m.
13. ALL ADOPTABLE PLASTIC SEWER PIPES TO BE KITEMARKED (CERTIFIED TO WIS 4-35-01 AND BS/EN13476).ADOPTABLE PLASTIC SEWER PIPES TO BE LAID IN MAXIMUM 3 METRE LENGTHS UNLESS THERE IS ASPECIFIC OPERATIONAL NEED TO LAY LONGER LENGTHS. PLASTIC CHANNEL SECTIONS IN MANHOLESARE NOT ACCEPTABLE AND YORKSHIRE WATER WOULD PREFER CLAYWARE CHANNEL IN MANHOLES.PLASTIC CHANNELS ARE DIFFICULT TO SET IN CONCRETE BECAUSE THEY FLOAT AND A SATISFACTORYFINISH CANNOT BE OBTAINED ON THE BENCHING.
14. WHERE A B125 COVER AND FRAME HAS BEEN APPROVED, THIS MUST NOT BE COATED IN PLASTIC ANDMUST HAVE LIFTING EYES SUITABLY SIZED TO ACCOMMODATE STANDARD LIFTING KEYS. SCREW DOWNCOVERS ARE NOT ACCEPTABLE.
OTHER DRAINAGE NOTES
15. ALL PRIVATE DRAINAGE WORKS SHALL BE CARRIED OUT IN ACCORDANCE WITH BUILDING REGULATIONS2002 EDITION.
16. CONTRACTOR TO ESTABLISH POSITION SIZE AND DEPTH OF ALL EXISTING SEWERS AND SERVICESPRIOR TO COMMENCEMENT ON SITE.
17. THE CONTRACTOR SHALL ALLOW FOR THE PROTECTION, TEMPORARY AND PERMANENT SUPPORT, ANDTEMPORARY AND PERMANENT DIVERSION WORKS, AS NECESSARY TO ALL EXISTING SERVICES.
18. THE CONTRACTOR SHALL ALLOW FOR ALL TRAFFIC MANAGEMENT IN CONNECTION WITH ROAD ANDSEWER WORKS.
19. THE CONTRACTOR SHALL ALLOW FOR KEEPING SEWER TRENCHES AND EXCAVATIONS AS DRY ASPRACTICABLE BY PUMPING FROM TEMPORARY SUMPS AND DEWATERING AS APPROPRIATE. THE POINTAND METHOD OF DISCHARGE TO BE AGREED WITH THE DRAINAGE AUTHORITY.
20. FOR PIPE SPECIFICATION PLEASE REFER TO ADDITIONAL NOTES.21. VITRIFIED CLAY PIPES AND FITTINGS SHALL COMPLY WITH THE RELEVANT PROVISIONS OF BS EN295
AND BS 65 RESPECTIVELY AND BE KITEMARKED. ALL PIPES SHALL BE EXTRA STRENGTH TO BS 65 OREQUIVALENT BS EN295 PIPE CRUSHING STRENGTH.
22. PRECAST CONCRETE PRODUCTS SHALL COMPLY WITH THE RELEVANT PROVISIONS OF BS 5911 AND BEKITEMARKED. CONCRETE PIPES TO BE CLASS 120 UNLESS NOTED OTHERWISE.
23. GULLY GRATES AND FRAMES SHALL COMPLY WITH THE RELEVANT PROVISIONS OF BS EN124 AND BE OFA NON-ROCKING DESIGN WITH CAPTIVE HINGE ACCESS AND BE KITEMARKED. LOAD CLASS D400 FORROADS AND SERVICE YARD AREAS. CLASS C250 TO BE USED IN CAR PARKING AREAS.
24. BACKFILLING AND REINSTATEMENT TO TRENCHES IN PUBLIC HIGHWAYS SHALL BE IN ACCORDANCEWITH THE REQUIREMENTS AND SPECIFICATIONS OF THE ADOPTING AUTHORITY, OR, IN THE ABSENCEOF SUCH, IN ACCORDANCE WITH THE REQUIREMENTS OF "THE STREET WORKS REGULATIONS 1992" ANDRELEVANT PROVISIONS OF H.A.U.C. "SPECIFICATION FOR THE REINSTATEMENT OF OPENINGS INHIGHWAYS" JUNE 1992, BOTH UNDER SECTION 71 OF THE NEW ROADS AND STREET WORKS ACT 1991.
25. ALL TRADITIONAL RAINWATER PIPE DOWN COMERS TO DISCHARGE TO TRAPPED GULLIES.26. ALL SIPHONIC DRAINAGE DOWN COMERS TO MANUFACTURER SPECIFICATION.27. ALL ROAD GULLIES ARE TO BE TRAPPED GULLIES.28. ALL GULLY LEADS TO BE 150mm DIAMETER.29. ALL REDUNDANT EXISTING DRAINAGE TO BE GRUBBED UP OR GROUTED, ANY EXISTING LIVE DRAINAGE
SHOULD BE REPORTED TO THE ENGINEER AND RECONNECTED.30. ALL ROAD GULLIES & LEADS TO BE CLEARED OF DEBRIS UPON COMPLETION OF WORKS.31. THE CONTRACTOR MUST ENSURE THAT ANY OF THE EXISTING DRAINAGE WHICH IS LIVE IS KEPT CLEAR
OF DEBRIS AND SHOULD ALLOW FOR JETTING THROUGH THE NEW & EXISTING DRAINAGE UPONCOMPLETION.
32. CONTRACTOR TO TAKE MEASURES TO PROTECT HIS OPERATIVES WITH RESPECT TO THE PRESENCE OFGAS IN SEWER TRENCHES AND MANHOLES THROUGH THE USE OF GAS MONITORING EQUIPMENT ANDBREATHING APPARATUS AS REQUIRED.
33. CONTRACTOR TO APPLY FOR SEWER PERMITS AND ROAD OPENING PERMITS AS NECESSARY FROM THEAPPROPRIATE AUTHORITIES, PRIOR TO COMMENCING WORKS.
34. WHERE PLASTIC PIPES ARE INSTALLED PRIOR TO GETTING APPROVAL THEN A LIGHT LINE CCTV SURVEYAND REPORT (ELECTRONIC DEFLECTION TESTING) OF THE PROSPECTIVELY ADOPTABLE SEWERS AREREQUIRED PRIOR TO APPROVAL AT THE DEVELOPERS EXPENSE.
YORKSHIRE WATER NOTES
· ALL ADOPTABLE SEWERS TO BE BSI KITEMARK (CERTIFIED TO WIS 4-35-01)· ADOPTABLE SEWER PIPES TO BE LAID IN MAXIMUM 3 METRE LENGTHS UNLESS THERE IS A
SPECIFIC OPERATIONAL NEED TO LAY LONGER LENGTHS· PLASTIC CHANNEL SECTIONS IN MANHOLES ARE NOT ACCEPTABLE AND YORKSHIRE WATER
WOULD PREFER CLAYWARE CHANNEL IN MANHOLES. PLASTIC CHANNELS ARE DIFFICULT TO SETIN CONCRETE BECAUSE THEY FLOAT AND A SATISFACTORY FINISH CANNOT BE OBTAINED ON THEBENCHING.
· WHERE PLASTIC PIPES ARE INSTALLED INTO THE GROUND PRIOR TO APPROVAL, THEDEVELOPER WILL HAVE TO PROVIDE A LIGHT-LINE CCTV SURVEY AND REPORT OF THEPROSPECTIVELY ADOPTABLE SEWERS.
Metres
0 10 20
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INDICATIVE SITE BOUNDARY
MAJOR CONTOUR
MINOR CONTOUR
PROPOSED ADOPTABLE SURFACE WATER
PROPOSED ADOPTABLE FOUL WATER
PROPOSED EASEMENT
PROPOSED ADOPTABLE HIGHWAY DRAIN
PROPOSED ADOPTABLE HIGHWAY GULLY
PROPOSED PRIVATE SURFACE WATER
PROPOSED PERFORATED LAND DRAIN PIPE
PROPOSED PRIVATE SURFACE WATER MANHOLE
PROPOSED PRIVATE SURFACE WATER PPIC
PROPOSED PRIVATE SW ACCESS CHAMBER (300Ø)
PROPOSED RODDING EYE
PROPOSED CLASS 1 SEPARATOR
PROPOSED DRAINAGE CHANNEL
PROPOSED PRIVATE GULLY
PROPOSED SIPHONIC RAINWATER PIPE
PROPOSED PRIVATE FOUL WATER
PROPOSED PRIVATE FOUL WATER MANHOLE
PROPOSED PRIVATE FW ACCESS CHAMBER (300Ø)
EXISTING LAND DRAINAGE DITCH
KEY
G
150Ø 1:150→
150Ø 1:150→
FW##CL 0.000IL 0.000
HW##CL 0.000IL 0.000
SWMHCL 0.000IL 0.000
SWICCL 0.000IL 0.000
150Ø 1:150→
SW##CL 0.000IL 0.000
RE
G
DC
FWMHCL 0.000IL 0.000
150Ø 1:150→
150Ø 1:150→
AC
AC
SRWP
INFO ADDED TO SUIT PLANNING CONSULTANTS COMMENTS 2AMF VW14.05.21
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Ø1200
1
2
3
4
5
6
7
8
9
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FW13CL 136.025IL 133.487
FW14CL 135.723IL 131.867
FW16CL 131.694IL 130.094
FW17
CL 130.100
IL 129.170
1.011 150Ø 1:70 50.213m VC
1.015 150Ø 1:13 11.987m VC
1.016 225Ø 1:100 15.952m VC
EXISTING LAND DRAINAGE DITCH
EXISTING LAND DRAINAGE DITCH
SURFACE WATER DRAINAGESWALE 1.0m DEEP WITH 1:2SIDE SLOPES. BED LEVEL144.000
NEW SWALE CONNECTED TOEXISTING PLATEAU LANDDRAIN (DITCH)
NEW FOUL DRAIN TO CONNECTTO EXISTING 225Ø FOULWATER DRAINAGE TAIL
EX.MANHOLE MH55bCL 130.700 TBCIL 129.000EXISTING 150Ø FOUL SEWER
EXIS
TING
150Ø
FOU
L SEW
ER
EXISTINGATTENUATION
BASIN
EXISTING LAND DRAIN OUTFALLTO ATTENUATION BASIN
EXISTING ATTENUATION BASIN CONSTRUCTEDUNDER 2020/2021 EARTHWORKS CONTRACT.
FW15CL 133.980IL 130.573
1.012 150Ø 1:150 58.936m VC
1.013 150Ø 1:150 71.999m VC
NEW FOUL DRAIN TO FOLLOWROUTE OF PROPOSEDFOOTPATH
LAND DRAIN DITCHES FORMEDUNDER EARTHWORKSCONTRACT CONNECTED TONEW SWALE
EXISTING LAND DRAINAGE DITCH
EXIS
TING
LAND
DRA
INAG
E DI
TCH
EX. 300Ø
FLOW CONTROLCHMABERCL 137.000IL 135.040
FLOW CONTROL CHAMBERRESTRICTED DISCHARGE RATEOF EQUIVALENT GREENFIELDDISCHARGE RATE OF 62.2 l/s
OUTFALL TO EXISTINGWATERCOURSE
PRELIMINARY
HARWORTH GROUP
ROCKINGHAM PHASE 2BIRDWELL
PROPOSED DRAINAGE LAYOUTSHEET 3 OF 3
1:250 AMF VW 10.05.21
Y20112 D202 2
Date Revisions Rev
Dwg Status
CheckedDrawn
R W OCONSULTING ENGINEERS
Client
Project
Title
DateCheckedDrawnScale @ A0: DO NOT SCALE
Job No Dwg No Rev
NORTH EAST0191 2585632
YORKSHIRE0113 5323500
FIRST ISSUE 1AMF VW10.05.21
N
Metres
0 10 20
SEE
DRA
WIN
G -D
201 F
OR C
ONTI
NUAT
ION
OF P
LAN
DESIGN NOTES:
1. ALL WORKS TO COMPLY WITH CURRENT VERSION OF THE FOLLOWING DOCUMENTS:· DESIGN MANUAL FOR ROADS AND BRIDGES (DMRB)· SPECIFICATION FOR HIGHWAY WORKS (SHW)· LOCAL AUTHORITY DESIGN GUIDE AND SPECIFICATION2. PRIOR TO COMMENCING WORKS THE CONTRACTOR SHOULD INVESTIGATE AND LOCATE AS
NECESSARY ANY STATUTORY UNDERTAKERS EQUIPMENT WITHIN THE NEW ACCESS AND DISCUSSREQUIREMENTS FOR LOWERING/DIVERSION AND PROTECTION WITH THE RELEVANT UNDERTAKER.
3. ALL WORKS WITHIN THE PUBLIC HIGHWAY TO MEET LOCAL AUTHORITY REQUIREMENTS.CONTRACTOR TO APPLY FOR ROAD OPENING NOTICES ETC AS REQUIRED.
4. CBR VALUE NOT AVAILABLE. ROAD CONSTRUCTION DETAIL SUBJECT TO CONFIRMATION OF CBRVALUES. CONTRACTOR TO ALLOW FOR LAB TESTS TO BE UNDERTAKEN IN AGREEMENT WITHLOCAL AUTHORITY HIGHWAY ENGINEER PRIOR TO WORKS COMMENCING.
5. PROPOSED LEVELS HAVE BEEN BASED ON THE EARTHWORKS CONTRACT PLATEAU LEVELS BY JPGGROUP DATED SEPTEMBER 2020.
6. PROPOSED DRAWING BASED ON ARCHITECTURAL LAYOUT BY THE HARRIS PARTNERSHIPARCHITECTS REF: 12006-2-(P)111 RECEIVED APRIL 2021.
7. SLOPES GREATER THAN 1 IN 6 MAY REQUIRE STABILISATION. GEOTECHNICAL ENGINEER TO BECONTACTED TO CONFIRM REQUIREMENTS
DRAINAGE NOTES:
1. ALL PIPES 100Ø UNLESS OTHERWISE STATED.2. ALL PRIVATE FOUL WATER PIPES NOT ANNOTATED TO BE A MINIMUM OF 100Ø INSTALLED AT 1:40;
ALL PRIVATE SURFACE WATER PIPES NOT ANNOTATED TO BE A MINIMUM OF 100Ø INSTALLED AT1:100.
3. ALL PRIVATE TO ADOPTABLE CONNECTIONS 150Ø UNLESS OTHERWISE STATED.4. ALL PPICs OVER 1.2m DEEP TO BE PROVIDED WITH REDUCED ACCESS COVER AND FRAME IN
ACCORDANCE WITH BUILDING REGULATIONS PART H.5. ALL PPICS IN TRAFFICKED AREAS TO HAVE D400 COVERS & CONCRETE SURROUND.6. ALL INTERNAL PLOT DRAINAGE REQUIRES CONFIRMATION PRIOR TO CONSTRUCTION.7. CONTRACTOR TO CONFIRM MH COVER & INVERT LEVEL OF PROPOSED CONNECTION POINT PRIOR
TO CONSTRUCTION. ANY VARIATION TO BE REPORTED TO ENGINEER.8. THE INVERT LEVEL OF THE EXISTING SEWERS ARE TO BE VERIFIED PRIOR TO COMMENCEMENT OF
ANY DRAINAGE WORKS. ANY DISCREPANCY MUST BE NOTIFIED TO THE ENGINEER.9. EXISTING MANHOLES TO BE MODIFIED TO ACCOMMODATE THE PROPOSED LATERAL
CONNECTIONS. CONTRACTOR TO APPLY TO THE WATER AUTHORITY FOR THE SECTION 106APPROVAL TO MAKE THE CONNECTIONS. PIPES ARE TO BE LAID WITH COMMON INVERT LEVELS.
10. ALL STUB PIPES ARE TO BE CAPPED.11. ALL PIPES CONNECTIONS TO BE SOFFIT TO SOFFIT UNLESS STATED OTHERWISE. REFER TO
MANHOLE SCHEDULE FOR FURTHER INFORMATION.12. ALL PROPOSED FILTER DRAINS TO CONNECT BACK INTO PLOT DRAINAGE.13. STONE FILLED LAND DRAINS REQUIRED IN BACK GARDENS WHERE FALLING TOWARDS PROPERTY14. FLOOD DEFENSE WORKS APPLICATION OR EQUIVALENT TO BE MADE TO THE LOCAL AUTHORITY
PRIOR TO CARRYING OUT ANY WORKS TO THE EXISTING WATERCOURSE.
GENERAL SAFETY NOTES:1. WHERE THE BASE (ROAD BASE) HAS BEEN USED AS A TEMPORARY RUNNING SURFACE DURING THE
CONTRACT IT SHALL BE THOROUGHLY CLEANED AND POWER WASHED AS NECESSARY. AFTER DRYINGAND IMMEDIATELY BEFORE THE BINDER COURSE IS LAID A TACK COAT OF BITUMEN EMULSION CLASSA1-40 OR K1-40 TO BS434 SHALL BE APPLIED AT A RATE OF 0.35-0.55 LITRES/SQ METER.
2. ALL RADIUS KERBS WITH A RADIUS OF 12m OR LESS SHALL BE FORMED WITH PROPRIETARY RADIUSKERBS.
HEALTH & SAFETY:1. CONTRACTOR SHOULD BE AWARE OF GENERAL CONSTRUCTION RISKS TO PREVENT SLIPS, TRIPS AND
FALLS AND TAKE NECESSARY PRECAUTIONS WITHOUT SPECIAL INSTRUCTION.ROADS & DRAINAGE2. CONTRACTOR TO PROVIDE TRENCH SUPPORTS AS APPROPRIATE AND ENSURE THAT PLANT REMAINS A
SAFE DISTANCE FROM TRENCHES PRIOR TO INSTALLING DRAINAGE3. THE TIME THAT EXCAVATIONS ARE OPEN ON SITE SHOULD BE KEPT TO A MINIMUM AND ALL TRENCHES
SHOULD BE SURROUNDED BY A BARRIER.4. CONNECTIONS TO EXISTING SEWERS TO BE MADE BY APPROVED CONTRACTOR ONLY.5. CONTRACTOR TO MAKE OPERATIVES AWARE OF ASSOCIATED DANGERS TO HEALTH SUCH AS
LEPTOSPIROSIS (WEILS DISEASE) AND RECOMMENDED PRECAUTIONS. ADEQUATE WELFARE FACILITIESAND PROTECTIVE CLOTHING TO BE PROVIDED AS REQUIRED.
6. UNFINISHED MANHOLES MUST BE COVERED WITH LOAD BEARING MATERIALS AND SURROUNDED WITHBARRIER.
PIPES & CABLES7. CONTRACTOR TO OBTAIN ALL SERVICE RECORDS PRIOR TO WORKS COMMENCING.8. SERVICE RECORDS TO BE REFERRED TO PRIOR TO WORK COMMENCING. CONTRACTOR TO PROCEED
WITH CAUTION AND SERVICES TO BE LOCATED BY HAND DIG AND PROTECTED ACCORDINGLY.EXCAVATION/FILL9. CONTRACTOR TO ENSURE RELEVANT MEASURES ARE TAKEN TO KEEP PLANT AND PEOPLE A SAFE
DISTANCE FROM STEEP SLOPES DURING THE WORKS.10. CONTRACTOR TO ENSURE THAT PROCEDURES ARE IN PLACE TO KEEP PEOPLE A SAFE DISTANCE FROM
WORKING PLANT WHERE NECESSARY.11. CONTRACTOR TO REFER TO GROUND INVESTIGATION REPORT FOR CONTAMINATION TESTS AND TO
PROVIDE ADEQUATE WELFARE FACILITIES AND PROTECTIVE CLOTHING AS REQUIRED.DRAINAGE SPECIFICATIONS FOR YORKSHIRE WATER
1. ALL ADOPTABLE SEWER WORKS AND MATERIALS TO BE IN ACCORDANCE WITH THE "DESIGN ANDCONSTRUCTION GUIDANCE UNDER THE CODE FOR ADOPTION AGREEMENTS", THE RELEVANTBRITISH/EUROPEAN AND YORKSHIRE WATER'S STANDARDS/REQUIREMENTS/ADDENDUM TO THEMECHANICAL AND ELECTRICAL SPECIFICATION AND KITEMARKED.
2. MANHOLE COVERS SHALL/MUST HAVE A CLEAR OPENING OF 600mm AND SHALL BE CLASS D400 TO BSEN 124 WITH 150mm DEEP FRAMES IN HIGHWAYS.
3. FILLED GROUND MUST BE FILLED AND CONSOLIDATED UNDER THE SUPERVISION AND TO THESATISFACTION OF YORKSHIRE WATER BEFORE ANY SEWER WORKS ARE CARRIED OUT.
4. YOKRSHIRE WATER IS NOT OBLIGED TO ACCEPT FILTER DRAIN/LAND DRAINAGE RUN-OFF INTO THEPUBLIC SEWER NETWORK OR ADOPTABLE DRAINAGE SYSTEM (DIRECTLY OR IN-DIRECTLY). ANALTERNATIVE METHOD OF DISPOSAL OF THE LAND DRAINAGE RUN-OFF WILL THEREFORE BE REQUIREDAND YOU WILL HAVE TO LIAISE WITH THE LOCAL AUTHORITY, LAND DRAINAGE SECTION WITH REGARDTO THE DISPOSAL OF THE FILTER DRAIN/LAND DRAINAGE RUN-OFF.
5. COVER SLABS MUST CARRY THE BSI KITEMARK OR WILL BE REJECTED BY YORKSHIRE WATERINSPECTOR. WHERE THE CLEAR OPENING OF THE KITEMARKED PRODUCT IS DIFFERENT TO THAT OFTHE COVER AND FRAME, A LOADING BEARING SLAB SHOULD BE FITTED ABOVE THE COVER SLAB TOBRING THE SIZE DOWN TO 600mm X 600mm FOR THE YORKSHIRE WATER SPECIFIED COVER SIZE.PLEASE REFER TO CONCRETE PIPE SYSTEMS ASSOCIATION (CPSA), 'TECHNICAL BULLETIN' ISSUEDAUTUMN 2004 FOR KITEMARKED COVER SLAB OPENING SIZES.
6. SULPHATE RESISTANT CEMENT (C20-DC2) AND PRECAST CONCRETE PRODUCTS MUST BE USED OR ALABORATORY REPORT PROVIDED PROVING THAT SUCH PRECAUTIONS ARE NOT NECESSARY.
7. THE ADOPTABLE SEWERS SHOULD BE A MINIMUM OF 1m AND MANHOLES 0.5m FROM KERB FACES ANDSERVICE MARGINS.
8. “SEWERS MUST HAVE 5 METRES CLEARANCE FROM TREES AND HEDGES (PLEASE ALSO REFER TOFIGURE 2.3 ON PAGE 33 IN “SEWERS FOR ADOPTION” 6TH EDITION FOR RESTRICTIONS ON TREEPLANTING ADJACENT TO SEWERS)”.
9. SEWERS TO BE LAID IN CLASS “S” BEDDING (150mm GRANULAR BED AND SURROUND). WHERE DEPTH OFCOVER TO TOP OF THE SEWER IS LESS THAN 1.2m IN HIGHWAYS AND VERGES (OR LESS THAN 900mm INNONE VEHICULAR ACCESS AREAS) THEN A CONCRETE SLAB SHOULD BE PROVIDE ABOVE GRANULARBED AND SURROUND.
10. BEDDING AND BACKFILL MATERIAL TO CONFORM TO THE REQUIREMENT OF WATER INDUSTRYSPECIFICATION 4-08-02 (TABLE A2).
11. THE CHAMBER SIZE OF MANHOLES WITH MORE THAN ONE CONNECTION IN THEM MAY NEED TO BEINCREASED AN INCREMENT TO ACCOMMODATE THE CONNECTIONS AND BENDS.
12. YORKSHIRE WATER POLICY IS NOT TO ACCEPT TYPE “C” BRICK MANHOLES AND 1050mm DIA MANHOLERINGS. INSTEAD IT IS PREFERRED THAT YOU USE A TYPE “B” MANHOLE WITH 1200mm DIA OR 1500mm DIARINGS, WITH THE OPENING SITED OVER THE CHANNEL WHERE DEPTH OF COVER TO PIPE SOFFIT IS 1 -1.5m.
13. ALL ADOPTABLE PLASTIC SEWER PIPES TO BE KITEMARKED (CERTIFIED TO WIS 4-35-01 AND BS/EN13476).ADOPTABLE PLASTIC SEWER PIPES TO BE LAID IN MAXIMUM 3 METRE LENGTHS UNLESS THERE IS ASPECIFIC OPERATIONAL NEED TO LAY LONGER LENGTHS. PLASTIC CHANNEL SECTIONS IN MANHOLESARE NOT ACCEPTABLE AND YORKSHIRE WATER WOULD PREFER CLAYWARE CHANNEL IN MANHOLES.PLASTIC CHANNELS ARE DIFFICULT TO SET IN CONCRETE BECAUSE THEY FLOAT AND A SATISFACTORYFINISH CANNOT BE OBTAINED ON THE BENCHING.
14. WHERE A B125 COVER AND FRAME HAS BEEN APPROVED, THIS MUST NOT BE COATED IN PLASTIC ANDMUST HAVE LIFTING EYES SUITABLY SIZED TO ACCOMMODATE STANDARD LIFTING KEYS. SCREW DOWNCOVERS ARE NOT ACCEPTABLE.
OTHER DRAINAGE NOTES
15. ALL PRIVATE DRAINAGE WORKS SHALL BE CARRIED OUT IN ACCORDANCE WITH BUILDING REGULATIONS2002 EDITION.
16. CONTRACTOR TO ESTABLISH POSITION SIZE AND DEPTH OF ALL EXISTING SEWERS AND SERVICESPRIOR TO COMMENCEMENT ON SITE.
17. THE CONTRACTOR SHALL ALLOW FOR THE PROTECTION, TEMPORARY AND PERMANENT SUPPORT, ANDTEMPORARY AND PERMANENT DIVERSION WORKS, AS NECESSARY TO ALL EXISTING SERVICES.
18. THE CONTRACTOR SHALL ALLOW FOR ALL TRAFFIC MANAGEMENT IN CONNECTION WITH ROAD ANDSEWER WORKS.
19. THE CONTRACTOR SHALL ALLOW FOR KEEPING SEWER TRENCHES AND EXCAVATIONS AS DRY ASPRACTICABLE BY PUMPING FROM TEMPORARY SUMPS AND DEWATERING AS APPROPRIATE. THE POINTAND METHOD OF DISCHARGE TO BE AGREED WITH THE DRAINAGE AUTHORITY.
20. FOR PIPE SPECIFICATION PLEASE REFER TO ADDITIONAL NOTES.21. VITRIFIED CLAY PIPES AND FITTINGS SHALL COMPLY WITH THE RELEVANT PROVISIONS OF BS EN295
AND BS 65 RESPECTIVELY AND BE KITEMARKED. ALL PIPES SHALL BE EXTRA STRENGTH TO BS 65 OREQUIVALENT BS EN295 PIPE CRUSHING STRENGTH.
22. PRECAST CONCRETE PRODUCTS SHALL COMPLY WITH THE RELEVANT PROVISIONS OF BS 5911 AND BEKITEMARKED. CONCRETE PIPES TO BE CLASS 120 UNLESS NOTED OTHERWISE.
23. GULLY GRATES AND FRAMES SHALL COMPLY WITH THE RELEVANT PROVISIONS OF BS EN124 AND BE OFA NON-ROCKING DESIGN WITH CAPTIVE HINGE ACCESS AND BE KITEMARKED. LOAD CLASS D400 FORROADS AND SERVICE YARD AREAS. CLASS C250 TO BE USED IN CAR PARKING AREAS.
24. BACKFILLING AND REINSTATEMENT TO TRENCHES IN PUBLIC HIGHWAYS SHALL BE IN ACCORDANCEWITH THE REQUIREMENTS AND SPECIFICATIONS OF THE ADOPTING AUTHORITY, OR, IN THE ABSENCEOF SUCH, IN ACCORDANCE WITH THE REQUIREMENTS OF "THE STREET WORKS REGULATIONS 1992" ANDRELEVANT PROVISIONS OF H.A.U.C. "SPECIFICATION FOR THE REINSTATEMENT OF OPENINGS INHIGHWAYS" JUNE 1992, BOTH UNDER SECTION 71 OF THE NEW ROADS AND STREET WORKS ACT 1991.
25. ALL TRADITIONAL RAINWATER PIPE DOWN COMERS TO DISCHARGE TO TRAPPED GULLIES.26. ALL SIPHONIC DRAINAGE DOWN COMERS TO MANUFACTURER SPECIFICATION.27. ALL ROAD GULLIES ARE TO BE TRAPPED GULLIES.28. ALL GULLY LEADS TO BE 150mm DIAMETER.29. ALL REDUNDANT EXISTING DRAINAGE TO BE GRUBBED UP OR GROUTED, ANY EXISTING LIVE DRAINAGE
SHOULD BE REPORTED TO THE ENGINEER AND RECONNECTED.30. ALL ROAD GULLIES & LEADS TO BE CLEARED OF DEBRIS UPON COMPLETION OF WORKS.31. THE CONTRACTOR MUST ENSURE THAT ANY OF THE EXISTING DRAINAGE WHICH IS LIVE IS KEPT CLEAR
OF DEBRIS AND SHOULD ALLOW FOR JETTING THROUGH THE NEW & EXISTING DRAINAGE UPONCOMPLETION.
32. CONTRACTOR TO TAKE MEASURES TO PROTECT HIS OPERATIVES WITH RESPECT TO THE PRESENCE OFGAS IN SEWER TRENCHES AND MANHOLES THROUGH THE USE OF GAS MONITORING EQUIPMENT ANDBREATHING APPARATUS AS REQUIRED.
33. CONTRACTOR TO APPLY FOR SEWER PERMITS AND ROAD OPENING PERMITS AS NECESSARY FROM THEAPPROPRIATE AUTHORITIES, PRIOR TO COMMENCING WORKS.
34. WHERE PLASTIC PIPES ARE INSTALLED PRIOR TO GETTING APPROVAL THEN A LIGHT LINE CCTV SURVEYAND REPORT (ELECTRONIC DEFLECTION TESTING) OF THE PROSPECTIVELY ADOPTABLE SEWERS AREREQUIRED PRIOR TO APPROVAL AT THE DEVELOPERS EXPENSE.
YORKSHIRE WATER NOTES
· ALL ADOPTABLE SEWERS TO BE BSI KITEMARK (CERTIFIED TO WIS 4-35-01)· ADOPTABLE SEWER PIPES TO BE LAID IN MAXIMUM 3 METRE LENGTHS UNLESS THERE IS A
SPECIFIC OPERATIONAL NEED TO LAY LONGER LENGTHS· PLASTIC CHANNEL SECTIONS IN MANHOLES ARE NOT ACCEPTABLE AND YORKSHIRE WATER
WOULD PREFER CLAYWARE CHANNEL IN MANHOLES. PLASTIC CHANNELS ARE DIFFICULT TO SETIN CONCRETE BECAUSE THEY FLOAT AND A SATISFACTORY FINISH CANNOT BE OBTAINED ON THEBENCHING.
· WHERE PLASTIC PIPES ARE INSTALLED INTO THE GROUND PRIOR TO APPROVAL, THEDEVELOPER WILL HAVE TO PROVIDE A LIGHT-LINE CCTV SURVEY AND REPORT OF THEPROSPECTIVELY ADOPTABLE SEWERS.
INDICATIVE SITE BOUNDARY
MAJOR CONTOUR
MINOR CONTOUR
PROPOSED ADOPTABLE SURFACE WATER
PROPOSED ADOPTABLE FOUL WATER
PROPOSED EASEMENT
PROPOSED ADOPTABLE HIGHWAY DRAIN
PROPOSED ADOPTABLE HIGHWAY GULLY
PROPOSED PRIVATE SURFACE WATER
PROPOSED PERFORATED LAND DRAIN PIPE
PROPOSED PRIVATE SURFACE WATER MANHOLE
PROPOSED PRIVATE SURFACE WATER PPIC
PROPOSED PRIVATE SW ACCESS CHAMBER (300Ø)
PROPOSED RODDING EYE
PROPOSED CLASS 1 SEPARATOR
PROPOSED DRAINAGE CHANNEL
PROPOSED PRIVATE GULLY
PROPOSED SIPHONIC RAINWATER PIPE
PROPOSED PRIVATE FOUL WATER
PROPOSED PRIVATE FOUL WATER MANHOLE
PROPOSED PRIVATE FW ACCESS CHAMBER (300Ø)
KEY
G
150Ø 1:150→
150Ø 1:150→
FW##CL 0.000IL 0.000
HW##CL 0.000IL 0.000
SWMHCL 0.000IL 0.000
SWICCL 0.000IL 0.000
150Ø 1:150→
SW##CL 0.000IL 0.000
RE
G
DC
FWMHCL 0.000IL 0.000
150Ø 1:150→
150Ø 1:150→
AC
AC
SRWP
NOTES ADDED TO ATTENUATION BASIN 1AMF VW11.05.21
Posts
Posts
Posts
Posts
Boll
So131.58
J11132.559
138.
5013
9.00
139.
5014
0.00
140.
5014
1.00
141.
5014
2.00
142.
5014
3.00
142.00142.50
143.00143.50
144.00
143.
50
144.
00
144.
50 145.
00
144.
00
144.
50
145.
00
132.50
133.00
133.50
134.00
134.50
135.00
135.50
136.00
136.50
136.50
137.00
137.00
132.
0013
2.50
133.
00
133.00
133.
50
133.50
134.
00
134.00
134.
50
134.50
135.
00
135.00
135.50
135.50
135.50
135.50
135.
50
135.50
136.
00
136.00
136.00
136.
00
136.00
136.00
136.
50
136.50
136.50
136.
50
136.50
136.50
137.
00
137.00
137.00
137.00
1:3.00
1:2.89
1:77.27
135.500m
135.100m
137.000m
Posts
Posts
Posts
Posts
PInv Ø1.16
PInv Ø0.3
WL
BH
Boll
TCL:
TCL:
TCL:
TCL:
TCL:
TCL:
TCL:
TCL:
TCL:
TCL:
TCL:
So
128.45
128.53
130.25
128.86
130.37
131.77
131.65
131.27
130.
10
130.92
131.73
132.86
132.46
132.25
131.96
131.94
132.05
132.39
132.18
131.82
131.82
131.86
131.99
132.06
132.48
132.36
137.29
137.61
136.15
136.11
138.76
136.72
137.43132.67
138.05
138.84
140.87
131.69
131.34
130.92
130.25
130.57
131.32
131.69
131.79
131.68
131.90
131.86131.62
131.17
130.80
130.37
129.86
129.30
129.04
130.18
130.22
130.64
131.87
131.22
132.44
132.57
132.52
131.77
130.93
131.49
131.81
132.06
131.94
132.05
132.03
132.00
132.06
132.20
132.46
132.79
132.74
132.43
132.24
132.93
132.96
133.14
132.99
133.00
131.21
133.77
133.94
134.42133.15
131.18
134.53
131.53
132.07
131.08 141.54
142.49
143.25
143.86
144.64145.05 145.87
146.32146.93 147.13
147.79
140.97
141.04
140.89
140.78
140.60
140.65
140.38
139.97
139.48
139.13
140.61
142.08
142.99
143.78
144.18 144.72 146.
54
145.
74
145.
11
143.03
144.70
144.80 145.32
132.71
132.00
131.76
132.43
132.26
132.27
132.27
132.87
133.35
133.62
133.84
134.32
134.58
135.05
135.34
135.91
142.08
142.04
141.97
142.09
142.12
142.06
141.85
141.46
141.08
142.78
143.25
143.58
143.85
143.59
143.44
143.10
142.83
142.88
143.61
143.83
144.33
144.84
145.50
145.31
144.89
144.40
143.79
144.70
145.31
145.92
146.54
146.69
146.63
146.22
147.58
147.36
147.16
146.78
146.26
145.63
147.14
147.68
148.05
148.09
148.21
147.29
130.81
131.70
131.59
130.66
131.
7113
1.80
130.
94
131.
88
132.
1113
1.01
131.74
131.14
131.59
131.20
131.85
131.17131.17
131.95132.11
131.13
131.15131.79
132.07
131.01
132.34
131.18
131.49131.90
131.50132.17
132.12
131.38
132.27 131.44
132.67
132.17
133.09
132.73132.44 132.35
131.
93
131.56131.03
131.15 131.67
131.21
131.36
131.05 131.63131.10
130.77
131.86
131.34
131.74131.98
132.14
132.05
PInv Ø0.45
131.42
130.83
PInv Ø0.225
131.58
Gy
Gy
Gy
132.43
132.36
132.28132.17
132.19132.19
132.73
132.30
132.70
132.95132.30
132.20
132.20
132.25
J11132.559
Post
Post
Post
Post
Posts
Post
Lp
WL
WL
WL
BH
TCL:
TCL:
TCL:
TCL:
TCL:
140.64
140.22
138.56
139.34
133.35
133.56
133.29
133.69
134.03
134.57
134.31
134.08
133.85
133.55
133.72
134.16
134.48
134.75
135.07
135.53
135.22
134.81
134.63
134.08
134.39
134.92
135.25
135.38
135.83
136.18
136.07
135.84
135.30
135.12134.84
135.59
136.01
136.50
136.04
135.56
135.29
135.51
135.87
136.02
135.88
135.57
135.28
134.96
134.77
134.45
134.04
133.73
133.58
133.43
133.22
133.05
132.98
132.79
133.20
133.24
135.
40
134.
45
133.
67
133.45
134.
16134.
36
133.
65
132.90
133.22
133.26
133.53
133.88
134.33
134.40
134.49
134.81
134.95
134.81
135.14
135.07
129.93
130.65
131.07
129.98
129.96
128.88
129.96
130.59
131.28
131.79132.02
132.04132.
6313
3.22
132.58
132.86
132.66
132.39
131.06
132.58
132.69
132.63
132.92
133.54
131.95
132.11
132.30
132.99
133.02
133.10
134.19
134.51
134.61
134.07
131.26
135.01
135.04
134.76
134.31
133.05
134.12
132.35
132.29
131.29
Run intovegetation
IL126.44
Ø1200
Ø1200
TFR B4
140.5
140.5
140.0
139.5
148.5
148.0
148.0
148.0
148.0
147.0
147.0
147.0
147.0
147.5
147.5
147.5
147.5
146.5
146.5
146.5146.5
146.5
146.0
146.0
146.0
146.0
146.0
146.0
145.5
145.5
145.5
145.5
145.5
145.5
145.5
145.0
145.0
145.0
145.0
145.0
145.0
145.0
145.0
144.5
144.5144.5
144.5
144.5
144.5
144.5
144.5
144.0
144.0
144.0
144.0
144.0
144.0
144.0
144.0
143.5
143.5
143.5
143.5
143.5
143.5
143.5
143.5
143.0
143.0
143.0
143.0
143.0
143.0
143.0
143.0
141.5
141.5
141.5
141.5
141.5
141.5
141.0
141.0
141.0
141.0
141.0
141.0
142.5
142.5
142.5
142.5
142.5
142.5
142.5
142.5
142.0
142.0
142.0
142.0
142.0
142.0
136.0
136.0136.0
136.0
135.5
135.5
135.5
135.5
134.0
134.0
133.0
133.5
134.5134.5
134.5
135.0
135.0
135.0
135.0
Run intovegetation
IL126.44
Ø1200
Ø1200
OSA
Existing Footpath to beretained
Pond
Pond
Pond
250K
80Posts
Posts
Posts
Posts
Boll
So131.58
J11132.559
34.7m SW 300 1:105.6m SW900 1:10
SWMH-CLILDp.
HB1137.00
135.0402.460
EXISTING FOUL W
ATER PIPE
LOCATION TO BE CONFRIMED
EXISTING SURFACE
WATER PIPE 1050m
mØ
EXISTING SURFACE
WATER PIPE 1050m
mØ
900Ø HEADWALL OUTLET REFERTO HEADWALL DETAIL 'HW2'
HYDROBREAK MANHOLE RESTRICTEDDISCHARGE IN TO EXISTING HIGHWAYDRAIN AT 62.2 L/S
300Ø HIGHWAY INLET REFER TOHEADWALL DETAIL 'HW1'
SURFACE WATER MANHOLE SCHEDULEREF. COVER LEVEL INVERT LEVEL SUMP DEPTH DEPTH EASTINGS NORTHINGS DIAMETER TYPE COVER NOTESHB1 137.00m 135.040m 0.500m 2.460m 435373.794 400827.606 2100Ø TYPE B 1200x600 - CLASS D400 FLOW CONTROL CHAMBER
NOTE: ALL INVERT LEVELS SHOWN ARE FOR THE OUT GOING PIPE, ALL PIPES SHALL BE LAID WITH LEVEL SOFFITS (UNLESS OTHERWISE INDICATED ON THE DRAWING)
900ØIL = 135.875m
150
9090
090
150
900ØSTANDARD PIPE
900ØROCKER PIPE
900ØBUTT PIPE
IL = 135.600m
MIN. 150 THICK GEN 3 CONCRETESURROUND TO PIPE UNTIL COVERTO SOFFIT IS GREATER THAN 0.9m.
PROPOSED GROUND PROFILE 1:3 MAX.
PCC HEADWALL BY ALTHONREF: SFA15 C
ALLOW FOR 300mm THICK GABIONMATRESS TO PROVIDE SCOURPROTECTION TO WATERCOURSE.
75mm TO 20mm HARD CLEAN STONE MIN. 300mm THICKANY SOFT FORMATION ENCOUNTERED TO BE TREATEDWITH 150mm NOMINAL SIZE STONE DRIVENT TO REFUSAL.
100mm THICK GEN 3 CONCRETE BLINDINGBELOW BASE OF HEADWALL.
HINGED SAFTEY GRILLE - BARS TO BE 50mmx 12mm AT 100mm CENTRES. GRILLE TO BEHINGED AT ONE SIDE AND ALLOW FOR APAD LOCK ON THE OTHER SIDE.
3 SIDED HANDRAIL.
500mm x 500mm CONCRETE TOE.
150
MIN
.
GROUND LEVEL AROUND EXTENT OF STRUCTURE ISTO BE RE-GRADED AS REQUIRED SO THAT THE PCCHEADWALL WALL AND BACK HAVE A MINIMUMUPSTAND ABOVE THE BANK LEVEL OF 150mm.RE-GRADED GROUND TO BE FINISHED WITHTOPSOIL AND SEEDED.
HW2SECTION THROUGH 900Ø SURFACE WATER OUTLET PIPE TO WATERCOURSE
SCALE 1:20
150
55
300
55
150
150
MIN
.
300ØSTANDARD PIPE
300ØROCKER PIPE
300ØBUTT PIPE
MIN. 150 THICK GEN 3 CONCRETESURROUND TO PIPE UNTIL COVERTO SOFFIT IS GREATER THAN 0.9m.
75mm TO 20mm HARD CLEAN STONE MIN. 300mm THICKANY SOFT FORMATION ENCOUNTERED TO BE TREATEDWITH 150mm NOMINAL SIZE STONE DRIVENT TO REFUSAL.
100mm THICK GEN 3 CONCRETE BLINDINGBELOW BASE OF HEADWALL.
131.210m
PCC HEADWALL BY ALTHONREF: SFA6 C
ALLOW FOR 300mm THICK GABIONMATRESS TO PROVIDE SCOURPROTECTION TO WATERCOURSE.
HINGED SAFTEY GRILLE - BARS TO BE 50mmx 12mm AT 100mm CENTRES. GRILLE TO BEHINGED AT ONE SIDE AND ALLOW FOR APAD LOCK ON THE OTHER SIDE.
3 SIDED HANDRAIL.
500mm x 500mm CONCRETE TOE.
PROPOSED GROUNDPROFILE 1:3 MAX.
GROUND LEVEL AROUND EXTENT OFSTRUCTURE IS TO BE RE-GRADED ASREQUIRED SO THAT THE PCC HEADWALLWALL AND BACK HAVE A MINIMUMUPSTAND ABOVE THE BANK LEVEL OF 150mm.RE-GRADED GROUND TO BE FINISHED WITHTOPSOIL AND SEEDED.
300ØIL = 131.360m
HW1SECTION THROUGH 300Ø SURFACE WATER OUTLET PIPE TO WATERCOURSE
SCALE 1:20
1000
3500
1000
3500
POND BEDLEVEL
VARIES VARIESTBC1:40 1:403
1
31
POND POND
31
31
COVAMAT EDGE ANCHOR, EDGE OF MAT TOBE BURIED IN 'V' DITCH & PINNED INTO PLACEWITH PINS @ 500 CTRS ALONG EDGE OF MAT.
PERIMETER TRENCH EXCAVATED INSUBGRADE & TRIMMED. 'BENTOFIX' MATTO COVER ENTIRE TRENCH FLOOR BUTNOT TO EXTEND UP REAR TRENCH WALL.
COVAMAT CS PRE SEEDED EROSION CONTROLMATTING FROM POND BED TO TOP OF EMBANKMENTLEVEL, INSTALLED TO MANUFACTURER'S DETAILS ON300mm TOPSOIL, TOPSOIL THICKNESS TO REDUCED TO150mm ABOVE LEVEL OF PERIMETER TRENCH.(SEED TOMATTING MIX TO LANDSCAPE ARCHITECTS DETAILS).
BENTOFIX 'NSP4900-1' POND LINER CAPPEDOFF WITH 300mm OF TOPSOIL, UP TO LEVELOF +100mm ABOVE 1:100 YR WATER LEVEL.LINER SUPPLIED BY NAUE GMBH&CO.
400
500
TOP OF LINERLEVEL
WATER LEVEL
BATTER BACK TO EXTISTINGGROUND LEVEL AT 1:3 MAX.
300 300
150
400
500
300
150
TBC
31
BATTER BACK TO EXTISTINGGROUND LEVEL AT 1:3 MAX.
31
TYPICAL SECTION THROUGH SURFACE WATER ATTENUATION PONDSCALE 1:25
P01 FIRST ISSUE. 28.02.20 LSG
P02 FURTHER DETAIL ADDED TO DRAINAGELAYOUT
30.04.20 RMR
P03 TYPICAL SECTION THROUGHATTENUATION POND ADDED.
13.05.20 JAC
DRAINAGE NOTES1. ALL BUILDING DRAINAGE WORKS SHALL BE CARRIED OUT IN
ACCORDANCE WITH BS EN 752:2008 DRAINAGE AND SEWERSYSTEMS OUTSIDE BUILDINGS, THE CURRENT BUILDINGREGULATIONS AND THE LOCAL AUTHORITY BUILDING CONTROLSPECIFICATIONS AND REQUIREMENTS.
2. ANY DRAINAGE TO BE PUT FORWARD FOR ADOPTION EITHERWITHIN THE SITE OR OUTSIDE SHALL BE CONSTRUCTED TO SEWERSFOR ADOPTION LATEST EDITION AND ANY SPECIFICREQUIREMENTS OF THE ADOPTING SEWERAGE/WATERAUTHORITY.
3. THE LOCATION, SIZE AND DEPTH OF ALL EXISTING DRAINS/SEWERSAND SERVICES SHALL BE ESTABLISHED BY THE CONTRACTORPRIOR TO THE COMMENCEMENT OF WORKS ON SITE. ANYDISCREPANCIES FROM THE INFORMATION INDICATED ON THESEDRAWINGS SHALL IMMEDIATELY BE BROUGHT TO THE ATTENTIONOF THE ENGINEER.
4. THE CONTRACTOR SHALL ALLOW FOR THE PROTECTION,TEMPORARY AND PERMANENT SUPPORT AND DIVERSION WORKSAS NECESSARY, TO ALL EXISTING SERVICES TO THE SATISFACTIONOF THE UTILITY COMPANIES.
5. THE CONTRACTOR SHALL ALLOW FOR DEALING WITH SURFACEWATER RUN OFF INTO EXCAVATIONS AND FROMGROUNDWATER BY MEANS OF SUMPS, PUMPING AND DEWATERING AS APPROPRIATE, IN ORDER TO KEEP THEEXCAVATION AS REASONABLY DRY AS POSSIBLE DURING THECONSTRUCTION OF THE WORKS.
6. ALL LEVELS AND DIMENSIONS SHALL BE VERIFIED ON SITE PRIORTO THE COMMENCEMENT OF ANY WORKS. ANY DISCREPANCIESSHALL IMMEDIATELY BE BROUGHT TO THE ATTENTION OF THEENGINEER.
7. ALL EXISTING DRAINAGE LOCATIONS AND LEVELS ARE TO BECONFIRMED BY THE CONTRACTOR AND THE ENGINEER NOTIFIEDBEFORE ANY DRAIN RUNS ARE CONSTRUCTED.
8. THE CONTRACTOR SHALL IMMEDIATELY NOTIFY THE ENGINEERSHOULD ANY EXISTING LIVE DRAINAGE BE FOUND WITHIN THE SITEBOUNDARY SERVING ADJACENT PROPERTIES.
9. ALL EXISTING DRAINAGE WITHIN THE SITE NOT REQUIRED FOR THENEW DEVELOPMENT SHALL BE ABANDONED. DRAINS AND SEWERLESS THAN 1.500m DEEP WHICH ARE IN OPEN GROUND SHOULDAS FAR AS IS PRACTICABLE BE FULLY REMOVED ALL OTHER PIPESSHOULD BE SEALED AT BOTH ENDS AND AT ANY POINT OFCONNECTION, AND BE GROUT FILLED TO ENSURE THAT RATSCANNOT GAIN ACCESS. LARGER PIPES 225Ø OR ABOVE SHOULDBE GROUT FILLED TO PREVENT SUBSIDENCE OR DAMAGE TOBUILDINGS OR SERVICES IN THE EVENT OF COLLAPSE.
10. ALL MANHOLE/CHAMBER COVER LEVELS ARE APPROXIMATEAND SHALL BE ADJUSTED ON SITE TO SUIT THE PROPOSEDFINISHED LEVELS.
11. CONNECTIONS FROM WPC TO BE LAID AT 1/40 MINIMUM AND1/10 MAXIMUM GRADIENTS WHERE CONSTRUCTED UNDER THEBUILDING.
12. ALL PIPE CONNECTION FROM DRAINAGE CHANNELS ANDGULLIES SHALL BE 150Ø PIPES AT A MINIMUM GRADIENT OF 1:100WITH CLASS Z BEDDING UNO. ON THE DRAWING.
13. ALL PIPE CONNECTIONS FROM RWP'S TO BE 100Ø AT 1:60 MIN.WITH CLASS S BEDDING BENEATH THE BUILD AND CLASS Z UNDEREXTERNALS WHERE COVER IS LESS THAN 1.20m UNO. ON THEDRAWING (LOCATION OF RWP'S TO BE CONFIRMED BY THEARCHITECT SHOWN INDICATIVELY ON THE DRAWING).
14. ALL SYPHONIC RWP SYSTEMS TO BE DESIGNED BY OTHERS.PIPEWORK FROM DOWN PIPE TO FIRST MANHOLE TO BE SIZED/DESIGNED BY SYPHONIC SYSTEM DESIGNER. THE FIRST MANHOLETO HAVE AN OPEN GRATE COVER SAINT GOBAIN WATERWAY2000 - D400 OR SIMILAR APPROVED.
15. ALL PIPE CONNECTIONS FROM WPC'S TO FIRST CHAMBER SHALLBE 100Ø AT 1:40 MIN. WITH CLASS S BEDDING BENEATH THE BUILDAND CLASS Z UNDER EXTERNALS WHERE COVER IS LESS THAN1.20m UNO. ON THE DRAWING (LOCATION OF WPC' TO BECONFIRMED BY THE ARCHITECT AND TENANT (NOTE ADDITIONALCHAMBERS AND PIPE WORK MAYBE REQUIRED TO SUIT THETENANTS LAYOUT).
16. LOCATION SIZE AND SETTING OUT OF ALL RAINWATER ANDWASTE PIPE CONNECTIONS REFER TO THE RELEVANT ARCHITECT'SDRAWING FOR DESIGN PURPOSES THESE HAVE BEEN ASSUMED.
17. SUITABLY SIZED PETROL INTERCEPTORS MUST COMPLY WITH THEREQUIREMENTS OUTLINE IN PPG3 THESE INCLUDE SILT STORAGECAPACITY AND HIGH LEVEL HYDROCARBON ALARM WIREDBACK TO A MANNED OFFICE.
18. THE CONTRACTOR SHALL TAKE ALL NECESSARY SAFETYPRECAUTIONS IN LINE WITH CURRENT LEGISLATION WHENWORKING IN/NEAR CONFINED SPACES, DEEP EXCAVATIONSAND MACHINERY.
19. THE CONTRACTOR SHALL ALLOW FOR OBTAINING ALLAPPROVALS FROM THE RELEVANT AUTHORITIES WHEN WORKINGIN THE PUBLIC HIGHWAY AND ON THE SEWERAGE SYSTEM.
20. THE CONTRACTOR SHALL SUITABLY PROTECT PEDESTRIANS ANDVEHICLES FROM WORKING AREAS.
21. ALL PIPES SHALL BE LAID WITH LEVEL SOFFITS AND ALLMANHOLE/INSPECTION CHAMBER INVERT LEVELS SHOWN AREFOR THE OUT GOING PIPE (UNLESS OTHERWISE INDICATED IN THEDRAWING). PIPE RUNS SHALL BE LAID TO THE INVERT LEVELS ASDETAILED ON THE CONTRACT DRAWINGS. (NOTE THAT ALL PIPEGRADIENTS INDICATED ON THE DRAWINGS ARE APPROXIMATE).
22. ALL RAINWATER PIPES AND INTERNAL FOUL DRAINCONNECTIONS POINTS ARE TO BE SIZED & POSITIONED ASSHOWN ON THE ARCHITECTS DRAWINGS. THE CONTRACTORSHALL SUPPLY SUITABLE ADAPTORS AT PROPOSED GROUNDLEVELS OR FINISHED FLOOR LEVEL TO ALLOW CONNECTION OFTHE ABOVE GROUND DRAINAGE SYSTEM.(DETAILS OF THE ABOVEGROUND DRAINAGE SYSTEM AND ADAPTORS ALL BY OTHERS).
23. UPON COMPLETION OF THE DRAINAGE WORKS THECONTRACTOR SHALL CLEAN ALL DRAIN RUNS BY JETTING ANDREMOVE ALL DEBRIS FROM SITE. NO DEBRIS SHALL BE PERMITTEDTO ENTER THE PUBLIC SEWER AND/OR WATERCOURSE SYSTEM.ONCE THE DRAINAGE SYSTEM HAS BEEN FULLY CLEANED OUT ACCTV CAMERA CONDITION SURVEY SHALL BE UNDERTAKEN TOALL CONSTRUCTED DRAINAGE AND SEWER PIPES WITH THEFOOTAGE ISSUED TO THE ENGINEER FOR VIEW. THE AS BUILTINVERT AND COVER LEVELS SHALL BE RECORDED BY THECONTRACTOR AND PASSED ON TO THE ENGINEER FOR REVIEW.
REV DESCRIPTION DATE BY
Project
Architect
Checked
DO NOT SCALEN O T E S
©
Date Drawn
Drawing Title
JPG Project Ref
S2
THIS DRAWING IS THE PROPERTY OF JPG (LEEDS) LIMITEDREGISTERED IN ENGLAND No 4274608. COPYRIGHT RESERVED
I N F O R M A T I O N I S S U E
w w w . j p g . g r o u pLeeds 0113 263 1155BirminghamLondon
Scale at A0
ROCKINGHAM PHASE 2A & 2BHOYLAND
PHASE 2ATTENUATION POND OUTFALLDETAILS
THE HARRIS PARTNERSHIP
4652-2 AS SHOWN 23.04.20 RMR RMR
P034652-2 - JPG - SW - 00 - DR - D - 1451
PROPOSED TRADITIONAL TYPE ROAD GULLYWITH 150Ø OUTLET PIPE
PROPOSED FW DRAINS/SEWERS
EXISTING SW DRAINS/SEWERS
PROPOSED SITE BOUNDARY
EXISTING FW MANHOLE
EXISTING SW MANHOLE
LEGEND:
PROPOSED DRAINAGE CHANNEL
PROPOSED KERB DRAINAGE
PROPOSED FW MANHOLE
PROPOSED SW MANHOLE
RG
PROPOSED SW INTERCEPTOR
PROPOSED FW PUMPING STATION
PROPOSED SW DRAINS/SEWERS
PROPOSED FW RISING MAIN
WPC PROPOSED WASTE PIPE CONNECTION SIZE &LOCATION TBC BY OTHERS
RWP PROPOSED RAINWATER DOWN PIPE SIZE &LOCATION TBC BY OTHERS
RE PROPOSED RODDING EYE
EXISTING FW DRAINS /SEWERS
PROPOSED SW PUMPING STATION
PROPOSED SW RISING MAIN
ATTENUATION / OUTFALL LAYOUTSCALE 1:500
NOTE:HEADWALL TO BE FITTED WITH 1.1mHIGH GALVANIZED MILD STEELDOUBLE SAFTEY HANDRAILS,STANDARDS AND SAFETY CHAINS TOBE PROVIDED TO TOP OF OUTFALLHEADWALL AND WING WALLS.
NOTE:HEADWALL TO BE FITTED WITH SAFTEYGRILLE IN ACCORDANCE WITH SFA6th ADDITION FIGURE 2.2
Proposed Development Rockingham Phase 2, Barnsley.
Y20112 – Drainage Maintenance and Management Plan
Appendix B Maintenance Visit Log Sheet
Operation and maintenance requirements for SuDS basin
1 2 3 4 5 6 7 8 9 10Inspect information signs. Signs to be free from damage and graffiti. QuarterlyInspect banksides, structures & pipework for evidence of physical damage. Quarterly/after significant rainfall
event. Inspect inlets, outlets and pre-treatment components for silt accumulation. Includes visual inspection of chamber & inspection of flow control.
Quarterly/after significant rainfall event.
Inspect inlets and outlets for blockages. Quarterly/after significant rainfall event.
Remove litter and surface debris. Litter & debris to be removed prior to any grass cutting activity to minimise risk of shredding litter. Particular attention should be paid to inlet/outlet structures. Monthly
Grass cutting: landscaped areas, base, banks, spillways & access routes. Monthly (during growing season) or as required.
Manage other vegetation and remove nuisance plant. Weeding should be conducted by hand or use non-toxic and biodegradable weed killer. Invasive species should be removed in accordance with best practice.
Monthly (at implementation) then as required
Remove sediment, litter and debris build-up from around inlets Quarterly to bi-annuallyRe-seed areas of poor vegetation growth. As required *Remove sediment from inlets and outlet areas. Disconnecting manhole with sump: desilt when level reaches 50% of sump. Headwall/aprons: sediments should be removed by hand to minimise damage to vegetation and disposed off-site.
As required *
Prune & trim trees/ shrubs and remove cuttings. Where vegetation is planted as a barrier management of upward growth to encourage outward growth is necessary (after shrub seedlings are established).
As required *
Repair ersoion or other damage by re turfing or re-seeding. As required Remove sediment from basin when attenuation volume is reduced by 20%. Sediment level will be dependent upon presence & type of upstream SUDS, size and land use of catchment as well as local soil conditions.
As required
Re-level uneven surfaces and re-instate design levels. As required Repair / rehabilitation of inlets, outlets and overflows. As required
Operation and maintenance requirements for basin inlets and outlets
1 2 3 4 5 6 7 8 9 10Remove litter and surface debris. Litter & debris to be removed prior to any grass cutting activity to minimise risk of shredding litter.
Quarterly/after significant rainfall event.
Inspect structures for evidence of poor operation. Assessment of structure condition and operation to identify necessary remedial works.
Quarterly/after significant rainfall event.
Inspect inlets and outlets for blockageQuarterly/after significant rainfall
event.
Regular maintenanceRemove sediment, litter and debris build-up from around inlets. Quarterley or after every major
storm eventRemedial actions Repair / remediate / replace structure. Corrective maintenance to be carried out as identified. As required
Operation and maintenance requirements for pipes a (Applicable for private drainage & adoptable prior to adoption by YWS)
1 2 3 4 5 6 7 8 9 10Inspect channel within all manholes for blockages and visual damage within manhole QuarterlyOperate hydro brake flow control release cable within flow control chamber to ensure satisfactory movement, reset once complete. Check visible fixing bolts. Quarterly
Operate penstock within manhole S43 to ensure satisfactory movement, reset once complete. Check visible fixing bolts on penstock. Quarterly
Occasional maintenance Clean out silt and debris from sump in flow control manhole As required (likely quarterly)
* Inspection, Recording and Reporting to be carried out at least annually
Regular maintenance
Regular inspections
Occasional maintenance
Maintenance Schedule Required Action Typical FrequencyDate of visit / inspection / work
Regular inspections
Remedial actions
Appendix B - Maintenance visit log sheet
Maintenance Schedule Required Action Typical FrequencyDate of visit / inspection / work
Regular inspections
Maintenance Schedule Required Action Typical FrequencyDate of visit / inspection / work
Proposed Development Rockingham Phase 2, Barnsley.
Y20112 – Drainage Maintenance and Management Plan
Appendix C Flow Control Details
(to be provided by contractor following completion of works)
4 Park Place Leeds LS1 2RU Tel: +44 (0)113 5325000 [email protected] www.rwo.group
