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Standard Drawings

Standard Drawings for Sanitary Works
Drawing NoDrawing TitlePDF
3-1bLayout of Sanitary Drainage System
3-2aDischarge Pipe Connection on First Storey Level
3-3aDischarge Stack Connection with Backdrop to Inspection Chamber
3-4aBackdrop and Tumbling Bay Details
3-5aType Bedding for Drain-Line
3-6aFloor Trap with or without a Sump [For Connection to Inspection Chamber]
3-7bInspection Chamber (IC) and Break Joint for Drain-Line
3-8aWash Area
3-9cSanitary Drainage System for Food Shop
3-10bWaste Sump at Ground Level (For Sullage Water Drainage)
3-11bSanitary Drainage System for Bin Centre
3-12bSanitary Plumbing and Drainage System for Market
3-13aFloor Sump for Market
3-14aSanitary Drainage system for Toilet at Beach Site/Construction Site
3-15bFully Ventilated System (with Single Stack) for Single Landed Housing
3-16bFully Ventilated System (with Secondary Discharge Stack) for All Buildings
3-17cSingle Stack System for Buildings Up to Six Storeys
3-18cVentilated Stack System for All Buildings
3-19cPiping Arrangement for Floor Trap (P-Type) and Water Closet Pan Connected in Series
3-20aVentilating Pipe for Floor Trap Connection to Discharge Pipe (Without Water Closet Connection)
3-21aOffset and Cross Venting
3-22aDetails of Connection Between Discharge Stacks and Inspection Chamber (Below Ground Level)
3-23aJointing of Outlet of Pedestal Water closet Pan to Discharge Pipe
3-24aVent Pipe Arrangements for 3 or More Waste Basins Connected in Series and Common Waste Pipe Size for Sanitary Appliances Connected in Series
3-25aLoop Venting Requirements for 3 or More Urinals Connected in Series
3-27Sanitary Plumbing System for Prefabricated Toilet
3-28Connection to Common Discharge Pipe at Basements
3-29Sanitary and Plumbing System for Food Establishment (Upper Storey Level)
List of Appendices and Standard Drainage Drawings

TitlePDFGIF
Drainage Reserve Requirements
Submission Requirement for Flood Protection Measures
Principles and Standards for Flood Protection of Underground Rapid Transit System (TEXT)
Rainfall Intensity-Duration-Frequency for Singapore Island Submission
Submission Requirements for "As Constructed" Drainage Drawings (TEXT)
Submission Requirement for Earth Control Measures
Soil Erodibility Chart
Standard Drawings for Sewerage Works
Drawing NoDrawing TitlePDF
PUB/WRN/STD/001BSTANDARD DETAILS OF SEWERS AND MANHOLES
PUB/WRN/STD/003APRECAST CONCRETE MANHOLE PARTS
PUB/WRN/STD/004BSTANDARD 45 DEG BEND MANHOLE FOR SEWERS 1000mm DIA. AND ABOVE
PUB/WRN/STD/005BSTANDARD MANHOLE FOR SEWERS 1000mm AND ABOVE
PUB/WRN/STD/006BSTANDARD DETAILS OF DEEP PRECAST CONCRETE MANHOLE WITH ONE INTERMEDIATE PLATFORM
PUB/WRN/STD/007BSTANDARD DETAILS OF SEWER CONNECTIONS
PUB/WRN/STD/008 DETAILS 0F MULTISTRAND POLY-PROPYLENE NYLON ROPE NETTING
PUB/WRN/STD/009AVORTEX DROP
PUB/WRN/STD/010ASTANDARD DETAILS OF GROUND MARKERS ALONG THE ROUTES OF DEEP TUNNELS AND CURVED SEWERS
PUB/WRN/STD/011MANHOLE ON SLOPE
PUB/WRN/STD/015ASTANDARD HEAVY DUTY MANHOLE FRAME AND COVER
PUB/WRN/STD/016ASTANDARD MEDIUM DUTY MANHOLE FRAME AND COVER
PUB/WRN/STD/017ASTANDARD INSPECTION CHAMBER FRAME AND COVER
PUB/WRN/STD/018ARECESSED TYPE LIGHT DUTY INSPECTION CHAMBER FRAME AND COVER
PUB/WRN/STD/040ASTANDARD CIRCULAR GREASE TRAP FOR CANTEENS, RESTAURANTS & EATING STALLS
PUB/WRN/STD/041ASTANDARD GREASE TRAP FOR SMALL EATING STALLS
PUB/WRN/STD/042ASTANDARD OIL INTERCEPTOR
PUB/WRN/STD/043ACAST IRON GULLY TRAP FOR COVERED CARPARK & CAR WASHING AREA
PUB/WRN/STD/044ACAST IRON GULLY TRAP FOR BIN CENTRE/REFUSE CENTRE
PUB/WRN/STD/045ACAST IRON GULLY TRAP FOR MARKETS
PUB/WRN/STD/046ASTANDARD ALUM.ALLOY STRAINER BUCKET AND C.I. GULLY TRAP
PUB/WRN/STD/102ADETAILS OF ANODISED ALUMINIUM ALLOY HANDRAIL AND SAFETY CHAIN
 
 
 
 
Standard Drawings for Water Supply Works
Drawing NoDrawing TitlePDF
PUB/WSN/CP/001Content Page
PUB/WSN/GN/001General Notes
PUB/WSN/STD/001Details of Pipe Specials (1 of 2)
PUB/WSN/STD/002Details of Pipe Specials (2 of 2)
PUB/WSN/STD/003Details of Butt Strap Joint, Canted Collar Joint, Socket & Spigot Joint and External Joint Coating & Internal Lining
PUB/WSN/STD/004Details of Puddle Flange, Retaining Ring, Dished End, Conical Blank End with 300 mm dia offtake
PUB/WSN/STD/005Joint Harness for 700 mm – 1800 mm dia pipe
PUB/WSN/STD/101Typical Access Manhole Chamber (Up to 6 m depth)
PUB/WSN/STD/102Typical Deep Access Manhole Chamber (Depth from 6 m to 9 m) and (Depth Exceeding 9 m to 12 m)
PUB/WSN/STD/103Typical Access Manhole Chamber with sensors (Up to 6 m depth)
PUB/WSN/STD/104Typical USFM Chamber (Depth up to 6 m)
PUB/WSN/STD/104ATypical USFM Chamber (Depth exceeding 6 m and not exceeding 9 m)
PUB/WSN/STD/105Typical Air Valve Chamber (for 700 – 1800 mm dia pipelines)
PUB/WSN/STD/106Typical Assembly Air Valve Chamber for 1900 / 2200 mm dia pipelines
PUB/WSN/STD/107Typical Off-Road Air Valve Chamber for 700 mm to 1800 mm dia pipelines
PUB/WSN/STD/108Typical Butterfly Valve Chamber with By-pass, Deep Washout and Air Valve
PUB/WSN/STD/109Details of Dismantling Joint, Lifting Rings With Hooks and Keyless Manhole Frame & Cover
PUB/WSN/STD/110Typical Washout Chamber (Up to 6 m depth)
PUB/WSN/STD/111Typical Deep Washout Chamber (Depth from 6 m to 9 m)
PUB/WSN/STD/112Typical Off-Road Air Valve Chamber for 1900 mm to 2200 mm dia pipelines
PUB/WSN/STD/113Aluminium Alloy Marker Plate For Butterfly Valve Chamber
PUB/WSN/STD/115Typical Deep Vertical Pipe With Air Valve Assembly at Pipe Jacking Shaft (Depth exceeding 6 m to 9 m) and (Depth exceeding 9 m)
PUB/WSN/STD/116Typical Deep Vertical Pipe With Indirect Washout and Air Valve Assembly at Pipe Jacking Shaft (Depth exceeding 9 m)
PUB/WSN/STD/201Details of Trench Excavation and Reinstatement Constructed By Open-Cut Method (For 700 – 2200 mm dia steel pipes)
PUB/WSN/STD/202RC Cladding Details for Composite Pipes – For Open Cut
PUB/WSN/STD/202ARC Cladding Details for Composite Pipes – For Pipe Jacking
PUB/WSN/STD/203Details of Trench Excavation and Reinstatement For Pipes Constructed by Open Cut Method
PUB/WSN/STD/204Standard Heavy Duty Ductile Iron (Grade A1) Manhole Frame and Cover (For Chamber Access) & (For Valve Spindle)
PUB/WSN/STD/205Standard Rectangle Ductile Iron (Grade A1) Manhole Frame and Cover (For Sluice Valve Before Hydrant)
PUB/WSN/STD/206Standard Square Ductile Iron (Grade A1) Manhole Frame and Cover (For Ground Hydrant)
PUB/WSN/STD/207Lengthening Key Support
PUB/WSN/STD/208Test Connection Details and Tangential Offtake for Draining Off during Link up Works
PUB/WSN/STD/209Stainless Steel (Type 304) Ladder and Stainless Steel Landing Platform
PUB/WSN/STD/210PVC Warning Marker, Ground Hydrant Chamber and Brick Chamber for 100 - 300 mm Dia Sluice Valve
PUB/WSN/STD/211Wall Reinforcement, Opening Reinforcement, Wall Construction Joint Detail
PUB/WSN/STD/212Ground and Signboard Markers
PUB/WSN/STD/214Arrangement of Various Chambers For Pipes Undercrossing Existing Drain and Services
PUB/WSN/STD/215Project Signboard Details
PUB/WSN/STD/216Typical Site Hoarding Details