Terms and Abbreviations

Go to Abbreviation Sort
Term Abbreviation
Abandoned AB or ABAN
Abutment ABUT
Access Opening AO
Access Right-Of-Way AR/W
Acre AC
Aerial AE
Air Release Manhole AR
Air Valve AV
Air Vent AVT
Alberta Low Impact Development Partnership ALIDP
Alberta Pipeline Products Limited APPL
Alberta Survey Control ASC
Alberta Survey Control Monument ASCM
Alignment End END
Alley AL
Alum AL
Ammonia NH3
Ammonium Sulfate AMS
Angle ∠
Antecedent Moisture Condition AMC
Apartment APT
Arc A
Arc Length A
Area AR
Area Structure Plan ASP
Asbestos Cement AC
Asphalt A
Asphalt Walk AW
At @
Automatic Air Valve AAV
Automatic Transfer Switch ATS
Avenue AV
Back of Curb BOC
Back Of Walk BW

Published on: 2018-07-01

Term Abbreviation
Back to Front BF
Bay BA
Bearing BRG
Bedding BED
Begin Full Cant BFC
Begin Full Super BFS
Begin Level Rail BLR
Begin Normal Crown BNC
Begin Normal Shoulder BNS
Begin of Alignment BOA
Begin Shoulder Rollover BSR
Beginning Of Curve BC
Bell And Spigot B/S
Bell End BE
Bench Mark BM
Best Management Practice BMP
Better Assessment Science Integrating point and Non-point Sources model BASINS model
Better Planning Practices BPP
Between BTWN
Bicycle Path BP
Biochemical Oxygen Demand BOD
Biophysical Impact Assessments BIA
Blended Sludge BS
Block BLK
Block Profile BP
Blue Brute BB
Bolted B
Bottom BTM
Bottom Of Pipe BOP
Boulevard BV
Boundary BDY
Bow River Basin Council BRBC
Building BLDG
Building Grade Plan BGP
By Law Closure BL
By-Pass BP
Cable Television C
Calgary River Valleys CRV
Canadian Environmental Assessment Act CEAA

Published on: 2018-07-01

Term Abbreviation
Canadian National Railway CNR
Canadian Pacific Railway CPR
Canadian Standards Association CSA
Canadian Western Natural Gas G
Capacity CAP
Cape CA
Carbonaceous Biochemical Oxygen Demand cBOD
Cast Iron CI
Catch Basin CB
Cathodic Protection CP
Caustic Soda CAS
Centimetre cm
Centrate CEN
Centre CE
Centre Line ℄
Centre of Curve CC
Certificate Of Title C OF T
Chain Link Fence CLF
Charcoal Fence CF
Charcoal Filter CF
Check Valve CV
Check Valve In Line - In Pipe CVI
Check Valve Pipeline - In Manhole CVS
Chemical Oxygen Demand COD
Chlorine Gas CL
Chlorine Solution CS
Chord CH
Circle CI
City Bench Mark CBM
Class CL
Clean Out CO
Close CL
Combination COMB
Combined Bend C BEND
Common CM
Community Plan CP
Community Reserve COMM RES
Complete With C/W
Compound Curve-Curve Intersect PCC

Published on: 2018-07-01

Compound Spiral Large Radius at Beginning CS_LRB
Compound Spiral Large Radius at End CS_LRE
Compound Spiral Small Radius at Beginning CS_SRB
Compound Spiral Small Radius at End CS_SRE
Compressed Air CA
Computational Fluid Dynamics CFD
Concrete CON or CONC
Concrete Walk CW
Condominium Site CDE
Conduit COND
Construction CONSTR
Construction and Financing Agreement CFA
Construction Completion Certificate CCC
Control & Monitor Chamber (Drypond) OM
Copper Cu
Corner COR
Corrugated Metal Pipe CMP
Corrugated Steel Pipe CSP
Counter Sunk CS
Coupling CPLG
Court CO
Cove CV
Creek CRK or CR
Crescent CR
Cross Section X-SEC
Crossfall X-FALL
Cubic Decimetre Per Second dm3/s
Cubic Feet Per Second cfs
Culvert CULV
Curb And Gutter C&G
Curb Transition CT
Curb Wall CW
Curve C
Curve Coefficient K
curve Intensity-Duration-Frequency Curve IDF
Curve Mid Point Mid
Curve Number CN
Curve To Spiral CS
Curve-Spiral Intersect CS
Curve-Tangent Intersect PT

Published on: 2018-07-01

Decametre dam
Decimetre dm
Decimetres Cubed Per Second dm3/s
Deep Bench Mark DBM
Deep Faced Curb DFC
Deep Gravel Base DGB
Degree DEG or °
Delta DL or Δ
Department DEPT
Description DEC
Design Quotient DES Q
Destroyed DEST
Development Permit DP
Development Site Servicing Plan DSSP
Dewatered Biosolids DWB
Dewatered Waste Activated Sludge DWAS
Diameter DIA or ⌀
Diesel Fuel DF
Digested Sludge DS
Digester Gas DG
Diluted Caustic Soda CSS
Dimension DIM
Direct Buried DB
Directly Connected Imperviousness XIMP
Dissipating DIS
Distance DIST
Distribution DIST
Ditch D
Diversion Manhole D
Domestic Cold Water DCW
Domestic Hot Water DHW
Domestic Hot Water Return DHWR
Double Barrel DB
Drain DR
Drawing DWG
Drive DR
Driveway DWY
Dry Well DW
Dual Drainage Storm Water Management Model DDSWMM
Ductile Iron DI

Published on: 2018-07-01

Dwelling DWLG
East Bound EB
East/Easting E
Edge Of Pavement EP
Edge of Pavement EOP
Effluent Filter Cleaning Acid FCA
Effluent Filtration Back Wash Water BW
Effluent Hot Water Return EHWR
Effluent Hot Water Supply EHWS
Effluent Water EW
Elbow River Watershed Partnership ERWP
Electric Light E
Elevation ELEV or EL
Elutriation Water ELW
Encasement ENC
End Full Cant EFC
End Full Super EFS
End Level Rail ELR
End Normal Crown ENC
End Normal Shoulder ENS
End of Alignment EOA
End of Curve EC
End Of Curve EC
End Shoulder Rollover ESR
Energy Grade Line EGL
Engineer ENG
Environmental Fluid Dynamic Code model EFDC model
Environmental Impact Assessment EIA
Environmental Performance Plan EPP
Environmental Protection Agency Stormwater Management Model EPA SWMM
Environmental Protection And Enhancement Act EPEA
Environmental Reserve ER
Environmentally Sensitive Area ESA
Epoxy Coated Cast Iron ECI
Erosion and Sediment Control ESC
Erosion Control Blanket ECB
Event Mean Concentration EMC
Existing EX
Expert Stormwater Management Model XP-SWMM
Extended Transport model EXTRAN model

Published on: 2018-07-01

Exterior Drop EXT DROP
Face Of Curb FC or FOC
Face Of Walk FW
Fats Oil And Grease FOG
Federal Bench Mark FED BM
Feedermain FM
Feet Or Foot FT or ’
Feet Per Second ft/sec or fps
Fermented Sludge FS
Fermenter Supernatant FSU
Ferric Chloride FC
Fiberglass Polyvinyl Chloride FPVC
Field Notes FN
Field Weld FW
Filtered Effluent Water FEW
Final Acceptance Certificate FAC
Fire Supply Line FSL
First Lift Paved FLP
Flagged F
Flange FLG
Flanged Outlet FO
Flanged Outlet Valve FOV
Flapper Gate FP
Flat Iron FL
Flood Gate FG
Flood Plain FLD PLN
Flood Way FLD WY
Floor FLR
Flow, Velocity, and Depth Q, V and D
Footing FTG
Force Main FM
Foul Air FA
Frame FR
Freeboard FB
Front to Back FF
Full Depth Paving FDP
Full Length FL
Future FUT
Galvanized GALV
Galvanized Iron GI

Published on: 2018-07-01

Garage GAR
Gardens GD
Gas G
Gate GA
Glycerine GLC
Glycol GL
Glycol Return GLYR
Glycol Supply GLYS
Grade Change A
Graded And Graveled GG
Grated Top GT
Grated Top Manhole GT
Gravlite Insulated G
Green GR
Grit GRIT
Grove GV
Hand-Off-Auto HOA
Harmful Alteration, Disruption, or Destruction HADD
Heath HE
Heating, Ventilation and Air Conditioning HVAC
Hectare ha
Hectometre hm
Height H
Heights HT
High Density Polyethylene Pipe HDPE Pipe
High Point HP
High Precision Control Monument HPN
High Pressure Condensate HPC
High Pressure Steam HPS
High Water Level HWL
Highway HWY or HI
Hill HL
Horizontal HOR
Horizontal Bend Left HBL
Horizontal Bend Right HBR
Horizontal Curve HC
Hospital HOSP
Hot Treated Effluent Water HTEW
Hot Water HW
Hot Water Return HWR

Published on: 2018-07-01

Hot Water Reverse Return HWRR
Hot Water Supply HWS
Human Machine Interface HMI
Hydrant HYD
Hydrant Guard HG
Hydraulic Grade Line HGL
Hydrogen Peroxide HPO
Hydrological Simulation Program - FORTRAN model HSPF model
Hydrolyzed Waste Activated Sludge HWAS
Impressed Current Anode Y
Inbound IB
Inch IN or "
Increaser INC
Inlet Chamber IC
Inlet Control Device ICD
Inlet/Outlet Structure (Dry Pond) I/O
Inside Diameter ID
Insituform INSITU
Instrument Air IA
Instrumentation INST
Insulate INS
Intake Structure IS
Integrated Pest Management IPM
Intermediate Sight IS
International Erosion Control Association IECA
Intersection INT
Invert INV
Iron Bar I
Iron Pin IP
Island IS
Isolate ISO
Issued for Construction IFC
Joint JT
Jumper Wire Interface JWI
Kilogram kg
Kilometres km
Kilometres Per Hour km/h
Kilovolt kV
Lagoon Supernatant LAS
Lake Control Manhole LC

Published on: 2018-07-01

Land Use, Outline Plan and Road Closure LOC
Landing LD
Lane LN
Lead L
Left Hand Valve LHV
Length LGTH or L
Length Of Curve LC
Length of Vertical Curve LVC
Letter of Authorization LoA
Level Crown LC
Licence Of Occupation LOC
Lift Station LS
Light Emitting Diode LED
Light Rail Transit LRT
Limit of Construction LOC
Line Beginning LB
Line End LE
Linear Feet L FT
Link LI
Lip Of Gutter LG or LOG
Lip of Gutter East LGE
Lip of Gutter Median LGM
Lip of Gutter North LGN
Lip of Gutter South LGS
Lip of Gutter West LGW
Live Liquid Micro-Organism LLO
Long Radius LR
Long Tangent LT
Lot Line LL
Low Point LP
Low Pressure Condensate LPC
Low Pressure Steam LPS
Low Profile Curb And Gutter LP C&G
Low Shoulder Match LSM
Low Water Level LWL
Lower Explosive Limit LEL
(Lower) Normal Water Level (L)NWL
Lowest Top of Footing LTF
Low-impact Development LID
Lube Oil LO

Published on: 2018-07-01

Main Floor MF
Main Valve MV
Manhole MH
Manhole Rim MHR
Manor MR
Manual MAN
Master Drainage Plan MDP
Maximum MAX
Median MED or M
Meridian M
Meteorological Service of Canada MSC
Meter Chamber MC
Meter Pit MP
Metering Station MS
Methanol MTHL
Metre m
Metres Per Second m/s
Mews ME
Microfilm MICRO
Miles Per Hour MPH
Millimetre mm
Minimum MIN
Minimum Grade MG
Minimum Main Floor MMF
Minimum Subfloor Elevation MSE
Minutes MIN or ’
Mixed Liquor ML
Model for Urban Stormwater Improvement Conceptualization MUSIC
Monitoring Manhole M
Monolithic Sidewalk MONO
Monument MON
Mortar Joint MJ
Motor Control Centre MCC
Mount MT
Municipal Reserve MR
Municipal School Reserve MSR
National Center for Computational Hydroscience and Engineering NCCHE
Natural Area Management Plan NAMP
Natural Gas NG
Navigable Waters Protection Act NWPA

Published on: 2018-07-01

Net Positive Section Head NPSH
Nitrite/Nitrate NO2NO3
Nitrogen Gas IG
Nitrogen Oxides NOx
Non Potable Domestic Cold Water NPW
Non-Governmental Organization NGO
North N
North Bound NB
North Side N/S
North-East NE
North-West NW
Nose Creek Watershed Partnership NCWP
Number No or #
Nutrient Water NW
Oil/Grit Separator OGS
On Centre O/C or OC
Open Joint OJ
Operating and Maintenance Manual O&M Manual
Outlet Chamber OC
Outline Plan OP
Outside Diameter OD
Overflow OF
Overhead OH
Overland Drainage Right-of-way ODR/W
Padlocked PL
Padlocked Manhole PL
Parade PR
Parallel PAR or //
Park PA
Park Service PKS
Parkway PKWY
Parson Insert PA
Passage PS
Path PH
Pavement PAVMT or P
Per /
Percent %
Perforated P
Perforated Polyvinyl Chloride PPVC
Permanent Water Level PWL

Published on: 2018-07-01

Phosphoric Acid PH
Pipe P
Piping and Instrumentation Diagram P&ID
Place PL
Placed PL
Plain End PE
Plan PL
Plan Profile PP
Plank PK
Plastic Plugs PP
Plaza PZ
Point PT
Point Of Common Curve PCC
Point Of Intersection PI
Point Of Reverse Curve PRC
Point On Curve PC
Point On Tangent PT
Pole Anchor Site PAS
Pollution Prevention P2
Polyacrylamide PAM
Polyaromatic Hydrocarbon PAH
Polyethylene PE
Polyethylene Cast Iron PCI
Polyethylene Ductile Iron PDI
Polyethylene Insert PE
Polyethylene Loc PE LOC
Polyethylene Pipe PE Pipe
Polymer Feed PF
Polyvinyl Chloride PVC
Polyvinyl Chloride Pipe PVC Pipe
Positive Cable PC
Potable Water PW
Pounds lbs or #
Pounds Per Square Inch psi
Pressure Reducing Valve PRV
Pressure Zone PZ
Primary Effluent PE
Primary Influent PI
Primary Sludge PS
Private PR

Published on: 2018-07-01

Process Air PA
Process Logic Controller PLC
Process Service Water PSW
Process Vent PV
Profile End EVP
Profile Start BVP
Programmable Logic Controller PLC
Property Line PL
Proposed PROP
Public Utility Lot PUL
Pull Box PB
Pump Station PS
Pure Oxygen PO
Quantity QTY
Radii Point RP
Radius R
Railway RWY
Range RGE
Raw Sewage RS
Raw Water RW
Reclaimed Water (B16B) RW
Rectifier R
Recycle Water RW
Reducer RED
Registered Minimum Grade RMG
Registered Plan REG’D PL
Reinforced REIN or RE
Relocation RELO
Remote Terminal Unit RTU
Replacement REPL
Reservoir RES
Restored RES
Restricted Activity Periods RAP
Retaining Wall RW
Return Activated Sludge RAS
Reverse REV
Reverse crown RC
Reverse Curve-Curve Intersect PRC
Reverse Spiral Intersect SPI
Revised Universal Soil Loss Equation RUSLE

Published on: 2018-07-01

Revised Universal Soil Loss Equation For Application In Canada RUSELFAC
Right R
Right Hand Valve RHV
Right-Of-Way RoW or ROW or R/W
Rise RI
River Basin Plan RBP
Road RD
Rolled RLD
Rolled Curb RC
Rolled Erosion Control Product RECP
Row RO
Rubber Gasket RG
Runoff Coefficient C
Sacrificial Anode X
Safety Gate SG
Sanitary SS or SAN
School Reserve SR
Screenings SCREEN
Scum SC
Seal Water SW
Sealed S
Sealed Manhole S
Second SEC
Secondary Effluent SE
Section SEC
Sediment Manhole SED
Separate Walk SEP
Septic Tank Dumping Manhole S DUMP
Service SERV
Service Air SA
Service Road SERV RD
Set In Field SI
Sheet SHT
Short Tangent ST
Shoulder SHLD
Shoulder Breakover SBO
Sidewalk S/W
Sidewalk Profile SWP
Simple Spiral Large Radius at Beginning SS_LRB
Simple Spiral Large Radius at End SS_LRE

Published on: 2018-07-01

Simple Spiral Small Radius at Beginning SS_SRB
Simple Spiral Small Radius at End SS_SRE
Slip Liner SL
Slope S
Sludge SL
Sludge Force Main SL FM
Sludge Lagoon SL LAG
Sodium Hypochlorite (Standard Road Salt) NaCl
Soil Conservation Service Method SCS Method
Soil Cement Base SC
Source Control Practice SCP
Source Loading and Management Model for Windows WinSLAMM
South S
South Bound SB
South Side S/S
South-East SE
South-West SW
Special Projects And Contracts SP
Special Purpose-City and Regional Infrastructure (Land-Use) S-CRI
Specifications SPEC
Spigot End SE
Spigot To Spigot S/S
Spiral To Curve SC
Spiral To Reverse Spiral SRS
Spiral To Tangent ST
Spiral-Curve Intersect SC
Spiral-Spiral Intersect SS
Spiral-Tangent Intersect ST
Square SQ or □
Staged Master Drainage Plan SMDP
Stake Line SL
Standard STD
Standard Concrete Barrier Half Section SCBHS
Standard Operating Procedure SOP
Standard Proctor Density S.P.D.
Station STA
Stationary STN
Stationary Iron Post I or ◊
Steel ST
Stone Mound SM

Published on: 2018-07-01

Storm SD
Storm Water ST
Stormwater Management Hydrologic Model SWMHYMO
Stormwater Management Model SWMM
Stormwater Management Report SWMR
Street ST
Street Light SL
Stromcepter Manhole STC
Structure STR
Subnatant SUB
Sulphate Resistant Concrete SRC
Sulphuric Acid SUL
Sump Pit SUMP
Supernatant SU
Supervisory Control and Data Acquisition SCADA
Supply SUP
Swale SW
Symbol SYM
Syphon SYP
System for Urban Stormwater Treatment and Analysis INtegration model SUSTAIN model
Tangent TAN or T
Tangent Length T=
Tangent To Spiral TS
Tangent Type TT
Tangent-Curve Intersect PC
Tangent-Spiral Intersect TS
Tangent-Tangent Intersect PI
Tape Wrapped Cast Iron TCI
Tape Wrapped Ductile Iron TDI
Tape Wrapped Urethane Ductile Iron TUDI
Tapping Valve TV
Telephone (Telus) T
Temporary TEMP
Terrace TC
Test Manhole TMH
Test Point T
Thickened Fermented Sludge TFS
Thickened Primary Sludge TPS
Thickened Was TWAS
Thrust Block TB

Published on: 2018-07-01

Top Of Curb TOC
Top Of Pipe TOP
Top Of Rail TOR
Top of Slab TOS
Topsoil and Seed T&S
Total Dissolved Phosphorus TDP
Total Dissolved Solids TDS
Total Imperviousness TIMP
Total Kjeldahl Nitrogen TKN
Total Nitrogen TN
Total Phosphorus TP
Total Suspended Solids TSS
Township TWP
Traffic Control TC
Trail TR
Transformer TRANS
Transite TR
Transition Section TRANS SEC
Transportation Utility Corridor TUC
Treated Digested Gas TDG
Treated Domestic Cold Water TDCW
Treated Effluent Water TEW
Treatment Plant TR PL
Tunnel Liner TL
Turf Reinforcement Mat TRM
Typical TYP
Ultimate ULT
Under Construction UC
Underground UG or U/G
Uninterruptible Power Supply UPS
United States Environmental Protection Agency USEPA
Universal Soil Loss Equation USLE
University of Ottawa Hydrologic Model OTTHYMO
University of Ottawa Storm Water Management Model OTTSWMM
Unknown UNK
Upgrade UPG
(Upper) Normal Water Level (U)NWL
Utility Right-Of-Way UR/W
Vacuum Air VAC
Valve V

Published on: 2018-07-01

Valve Chamber VC
Variable Frequency Drive VFD
Varies VAR
Velocity VEL
Vent VENT
Vertical VERT
Vertical Bend Down VBD
Vertical Bend Up VBU
Vertical Compound Curve Intersect VCC
Vertical Compound Curve Intersect Elevation VCCE
Vertical Compound Curve Intersect Station VCCS
Vertical Curve VC
Vertical Curve-Tangent Intersect EVC
Vertical Curve-Tangent Intersect Elevation EVCE
Vertical Curve-Tangent Intersect Station EVCS
Vertical Point of Intersection VPI
Vertical Reverse Curve Intersect VRC
Vertical Reverse Curve Intersect Elevation VRCE
Vertical Reverse Curve Intersect Station VRCS
Vertical Tangent-Curve Intersect BVC
Vertical Tangent-Curve Intersect Elevation BVCE
Vertical Tangent-Curve Intersect Station BVCS
View VW
Villas VL or VI
Vitrified Clay Tile VCT
Volume VOL
Walk WK
Walkway W/W
Wall Thickness WT
Wash Out WO
Waste Activated Sludge WAS
Water PW
Water Management Plan WMP
Water Quality Analysis Simulation Program WASP
Watershed Plan WP
Waterworks WW
Way WY
Weeping Tile Drain WTD
Weight WT
Weir Manhole WMH

Published on: 2018-07-01

Well Water WW
West W
West Bound WB
West Side W/S
Western Headworks Canal WH Canal
Wheel Chair Ramp WCR
Width W
Wooden Post WP
Yellow Jacket Ductile Iron YDI
Yellow Jacket Steel YJST
Yellow Jacket Urethane Ductile Iron YUDI

Published on: 2018-07-01

Go to Term Sort

Terms and Abbreviations

Abbreviation Term
" Inch
# Number or Pounds
% Percent
/ Per
// Parallel
@ At
’ Feet or Foot or Minutes
∠ Angle
⌀ Diameter
□ Square
◊ Stationary Iron Post
° Degree
Δ Delta
A Arc or Arc Length or Asphalt or Grade Change
AAV Automatic Air Valve
AB Abandoned
ABAN Abandoned
ABUT Abutment
AC Acre or Asbestos Cement
AE Aerial
AL Alley or Alum
ALIDP Alberta Low Impact Development Partnership
AMC Antecedent Moisture Condition
AMS Ammonium Sulfate
AO Access Opening
APPL Alberta Pipeline Products Limited
APT Apartment
AR Air Release Manhole or Area
AR/W Access Right-Of-Way
ASC Alberta Survey Control
ASCM Alberta Survey Control Monument
ASP Area Structure Plan
ATS Automatic Transfer Switch
AV Air Valve or Avenue

Published on: 2018-07-01

AVT Air Vent
AW Asphalt Walk
B Bolted
B/S Bell And Spigot
BA Bay
BASINS model Better Assessment Science Integrating point and Non-point Sources model
BB Blue Brute
BC Beginning Of Curve
BDY Boundary
BE Bell End
BED Bedding
BF Back to Front
BFC Begin Full Cant
BFS Begin Full Super
BGP Building Grade Plan
BIA Biophysical Impact Assessments
BL By Law Closure
BLDG Building
BLK Block
BLR Begin Level Rail
BM Bench Mark
BMP Best Management Practice
BNC Begin Normal Crown
BNS Begin Normal Shoulder
BOA Begin of Alignment
BOC Back of Curb
BOD Biochemical Oxygen Demand
BOP Bottom Of Pipe
BP Bicycle Path or Block Profile or By-Pass
BPP Better Planning Practices
BRBC Bow River Basin Council
BRG Bearing
BS Blended Sludge
BSR Begin Shoulder Rollover
BTM Bottom
BTWN Between
BV Boulevard
BVC Vertical Tangent-Curve Intersect
BVCE Vertical Tangent-Curve Intersect Elevation
BVCS Vertical Tangent-Curve Intersect Station

Published on: 2018-07-01

BVP Profile Start
BW Back Of Walk or Effluent Filtration Back Wash Water
C Cable Television or Runoff Coefficient or Curve
C BEND Combined Bend
C OF T Certificate Of Title
C&G Curb And Gutter
C/W Complete With
CA Cape or Compressed Air
CAP Capacity
CAS Caustic Soda
CB Catch Basin
CBM City Bench Mark
cBOD Carbonaceous Biochemical Oxygen Demand
CC Centre of Curve
CCC Construction Completion Certificate
CDE Condominium Site
CE Centre
CEAA Canadian Environmental Assessment Act
CEN Centrate
CF Charcoal Filter or Charcoal Fence
CFA Construction and Financing Agreement
CFD Computational Fluid Dynamics
cfs Cubic Feet Per Second
CH Chord
CI Cast Iron or Circle
CL Class or Close or Chlorine Gas
CLF Chain Link Fence
cm Centimetre
CM Common
CMP Corrugated Metal Pipe
CN Curve Number
CNR Canadian National Railway
CO Clean Out or Court
COD Chemical Oxygen Demand
COM Composite
COMB Combination
COMM RES Community Reserve
CON Concrete
CONC Concrete
COND Conduit

Published on: 2018-07-01

CONSTR Construction
COR Corner
CP Cathodic Protection or Community Plan
CPLG Coupling
CPR Canadian Pacific Railway
CR Crescent or Creek
CRK Creek
CRV Calgary River Valleys
CS Counter Sunk or Curve To Spiral or Chlorine Solution OR Curve-Spiral Intersect
CS_LRB Compound Spiral Large Radius at Beginning
CS_LRE Compound Spiral Large Radius at End
CS_SRB Compound Spiral Small Radius at Beginning
CS_SRE Compound Spiral Small Radius at End
CSA Canadian Standards Association
CSP Corrugated Steel Pipe
CSS Diluted Caustic Soda
CT Curb Transition
Cu Copper
CULV Culvert
CV Check Valve or Cove
CVI Check Valve In Line - In Pipe
CVS Check Valve Pipeline - In Manhole
CW Concrete Walk or Curb Wall
℄ Centre Line
D Ditch or Diversion Manhole
dam Decametre
DB Direct Buried or Double Barrel
DBM Deep Bench Mark
DCW Domestic Cold Water
DDSWMM Dual Drainage Storm Water Management Model
DEC Description
DEG Degree
DEPT Department
DES Q Design Quotient
DEST Destroyed
DF Diesel Fuel
DFC Deep Faced Curb
DG Digester Gas
DGB Deep Gravel Base
DHW Domestic Hot Water

Published on: 2018-07-01

DHWR Domestic Hot Water Return
DI Ductile Iron
DIA Diameter
DIM Dimension
DIS Dissipating
DIST Distance or Distribution
DL Delta
dm Decimetre
dm3/s Cubic Decimetre Per Second or Decimetres Cubed Per Second
DP Development Permit
DR Drive or Drain
DS Digested Sludge
DSSP Development Site Servicing Plan
DW Dry Well
DWAS Dewatered Waste Activated Sludge
DWB Dewatered Biosolids
DWG Drawing
DWLG Dwelling
DWY Driveway
E Electric Light or East/Easting
EB East Bound
EC End Of Curve
ECB Erosion Control Blanket
ECI Epoxy Coated Cast Iron
EFC End Full Cant
EFDC model Environmental Fluid Dynamic Code model
EFS End Full Super
EGL Energy Grade Line
EHWR Effluent Hot Water Return
EHWS Effluent Hot Water Supply
EIA Environmental Impact Assessment
EL Elevation
ELEV Elevation
ELR End Level Rail
ELW Elutriation Water
EMC Event Mean Concentration
ENC Encasement or End Normal Crown
END Alignment End
ENG Engineer
ENS End Normal Shoulder

Published on: 2018-07-01

EOA End of Alignment
EOP Edge of Pavement
EP Edge of Pavement
EPA SWMM Environmental Protection Agency Stormwater Management Model
EPEA Environmental Protection And Enhancement Act
EPP Environmental Performance Plan
ER Environmental Reserve
ERWP Elbow River Watershed Partnership
ESA Environmentally Sensitive Area
ESC Erosion and Sediment Control
ESR End Shoulder Rollover
EVC Vertical Curve-Tangent Intersect
EVCE Vertical Curve-Tangent Intersect Elevation
EVCS Vertical Curve-Tangent Intersect Station
EVP Profile End
EW Effluent Water
EX Existing
EXT DROP Exterior Drop
EXTRAN model Extended Transport model
F Flagged
FA Foul Air
FAC Final Acceptance Certificate
FB Freeboard
FC Face Of Curb or Ferric Chloride
FCA Effluent Filter Cleaning Acid
FDP Full Depth Paving
FED BM Federal Bench Mark
FEW Filtered Effluent Water
FF Front To Back
FG Flood Gate
FL Flat Iron Or Full Length
FLD PLN Flood Plain
FLD WY Flood Way
FLG Flange
FLP First Lift Paved
FLR Floor
FM Feedermain Or Force Main
FN Field Notes
FO Flanged Outlet
FOC Face of Curb

Published on: 2018-07-01

FOG Fats Oil And Grease
FOV Flanged Outlet Valve
FP Flapper Gate
fps Feet Per Second
FPVC Fiberglass Polyvinyl Chloride
FR Frame
FS Fermented Sludge
FSL Fire Supply Line
FSU Fermenter Supernatant
FT Feet Or Foot
ft/sec Feet Per Second
FTG Footing
FUT Future
FW Face Of Walk of Field Weld
G Canadian Western Natural Gas or Gas or Gravlite Insulated
GA Gate
GALV Galvanized
GAR Garage
GD Gardens
GG Graded And Graveled
GI Galvanized Iron
GL Glycol
GLC Glycerine
GLYR Glycol Return
GLYS Glycol Supply
GR Green
GRIT Grit
GT Grated Top Manhole or Grated Top
GV Grove
H Height
ha Hectare
HADD Harmful Alteration, Disruption, or Destruction
HBL Horizontal Bend Left
HBR Horizontal Bend Right
HC Horizontal Curve
HDPE High Density Polyethylene
HE Heath
HG Hydrant Guard
HGL Hydraulic Grade Line
HI Highway

Published on: 2018-07-01

HL Hill
hm Hectometre
HMI Human Machine Interface
HOA Hand-Off-Auto
HOR Horizontal
HOSP Hospital
HP High Point
HPC High Pressure Condensate
HPN High Precision Control Monument
HPO Hydrogen Peroxide
HPS High Pressure Steam
HSPF model Hydrological Simulation Program - FORTRAN model
HT Heights
HTEW Hot Treated Effluent Water
HVAC Heating, Ventilation And Air Conditioning
HW Hot Water
HWAS Hydrolyzed Waste Activated Sludge
HWL High Water Level
HWR Hot Water Return
HWRR Hot Water Reverse Return
HWS Hot Water Supply
HWY Highway
HYD Hydrant
I Iron Bar or Stationary Iron Post
I/O Inlet/Outlet Structure (Dry Pond)
IA Instrument Air
IB Inbound
IC Inlet Chamber
ICD Inlet Control Device
ID Inside Diameter
IDF curve Intensity-Duration-Frequency Curve
IECA International Erosion Control Association
IFC Issue for Construction
IG Nitrogen Gas
IN Inch
INC Increaser
INS Insulate
INSITU Insituform
INST Instrumentation
INT Intersection

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INV Invert
IP Iron Pin
IPM Integrated Pest Management
IS Intake Structure or Intermediate Sight or Island
ISO Isolate
JT Joint
JWI Jumper Wire Interface
K Curve Coefficient
kg Kilogram
km Kilometres
km/h Kilometres Per Hour
kV Kilovolt
L Lead or Length
L FT Linear Feet
(L)NWL (Lower) Normal Water Level
LAS Lagoon Supernatant
LB Line Beginning
lbs Pounds
LC Lake Control Manhole or Length of Curve or Level Crown
LD Landing
LE Line End
LED Light Emitting Diode
LEL Lower Explosive Limit
LG Lip Of Gutter
LGE Lip of Gutter East
LGM Lip of Gutter Median
LGN Lip of Gutter North
LGS Lip of Gutter South
LGTH Length
LGW Lip of Gutter West
LHV Left Hand Valve
LI Link
LID Low-impact Development
LL Lot Line
LLO Live Liquid Micro-Organism
LN Lane
LO Lube Oil
LoA Letter of Authorization
LOC Limit of Construction or Licence Of Occupation or Land Use, Outline Plan and
Road Closure
LOG Lip of Gutter

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LP Low Point
LP C&G Low Profile Curb And Gutter
LPC Low Pressure Condensate
LPS Low Pressure Steam
LR Long Radius
LRT Light Rail Transit
LS Lift Station
LSM Low Shoulder Match
LT Long Tangent
LTF Lowest Top of Footing
LVC Length of Vertical Curve
LWL Low Water Level
M Meridian or Monitoring Manhole or Median
m Metre
m/s Metres Per Second
MAN Manual
MAX Maximum
MC Meter Chamber
MCC Motor Control Centre
MDP Master Drainage Plan
ME Mews
MED Median
MF Main Floor
MG Minimum Grade
MH Manhole
MHR Manhole Rim
MICRO Microfilm
Mid Curve Mid Point
MIN Minimum or Minutes
MJ Mortar Joint
ML Mixed Liquor
mm Millimetre
MMF Minimum Main Floor
MON Monument
MONO Monolithic Sidewalk
MP Meter Pit
MPH Miles Per Hour
MR Manor or Municipal Reserve
MS Metering Station
MSC Meteorological Service of Canada

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MSE Minimum Subfloor Elevation
MSR Municipal School Reserve
MT Mount
MTHL Methanol
MUSIC Model for Urban Stormwater Improvement Conceptualization
MV Main Valve
N North
N/S North Side
NaCl Sodium Hypochlorite (Standard Road Salt)
NAMP Natural Area Management Plan
NB North Bound
NCCHE National Center for Computational Hydroscience and Engineering
NCWP Nose Creek Watershed Partnership
NE North East
NG Natural Gas
NGO Non-Governmental Organization
NH3 Ammonia
No Number
NO2NO3 Nitrite/Nitrate
NOx Nitrogen Oxides
NPSH Net Positive Section Head
NPW Non Potable Domestic Cold Water
NW North West or Nutrient Water
NWPA Navigable Waters Protection Act
O&M Manual Operating and Maintenance Manual
O/C On Centre
OC Outlet Chamber or On Centre
OD Outside Diameter
ODR/W Overland Drainage Right-of-way
OF Overflow
OGS Oil/Grit Separator
OH Overhead
OJ Open Joint
OM Control & Monitor Chamber (Drypond)
OP Outline Plan
OTTHYMO University of Ottawa Hydrologic Model
OTTSWMM University of Ottawa Storm Water Management Model
P Perforated or Pipe or Pavement
P&ID Piping and Instrumentation Diagram
P2 Pollution Prevention

Published on: 2018-07-01

PA Park or Parson Insert or Process Air
PAH Polyaromatic Hydrocarbon
PAM Polyacrylamide
PAR Parallel
PAS Pole Anchor Site
PAVMT Pavement
PB Pull Box
PC Point On Curve or Positive Cable or Tangent-Curve Intersect
PCC Point Of Common Curve or Compound Curve-Curve Intersect
PCI Polyethylene Cast Iron
PDI Polyethylene Ductile Iron
PE Plain End or Polyethylene or Polyethylene Insert or Primary Effluent
PE LOC Polyethylene Loc
PE Pipe Polyethylene Pipe
PF Polymer Feed
PH Path or Phosphoric Acid
PI Point Of Intersection or Primary Influent or Tangent-Tangent Intersect
PK Plank
PKS Park Service
PKWY Parkway
PL Padlocked Manhole or Place or Plan or Placed or Property Line or Padlocked
PLC Process Logic Controller or Programmable Logic Controller
PO Pure Oxygen
PP Plan Profile or Plastic Plugs
PPVC Perforated Polyvinyl Chloride
PR Parade or Private
PRC Point Of Reverse Curve or Reverse Curve-Curve Intersect
PROP Proposed
PRV Pressure Reducing Valve
PS Passage or Pump Station or Primary Sludge
psi Pounds Per Square Inch
PSW Process Service Water
PT Point Or Point On Tangent or Curve-Tangent Intersect
PUL Public Utility Lot
PV Process Vent
PVC Polyvinyl Chloride
PVC Pipe Polyvinyl Chloride Pipe
PW Water or Potable Water
PWL Permanent Water Level
PZ Plaza Or Pressure Zone

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Q, V and D Flow, Velocity, And Depth
QTY Quantity
R Radius Or Rectifier Or Right
R/W Right-Of-Way
RAP Restricted Activity Periods
RAS Return Activated Sludge
RBP River Basin Plan
RC Rolled Curb or Reverse Crown
RD Road
RE Reinforced
RECP Rolled Erosion Control Product
RED Reducer
REG’D PL Registered Plan
REIN Reinforced
RELO Relocation
REPL Replacement
RES Reservoir or Restored
REV Reverse
RG Rubber Gasket
RGE Range
RHV Right Hand Valve
RI Rise
RLD Rolled
RMG Registered Minimum Grade
RO Row
RoW Right-Of-Way
ROW Right-Of-Way
RP Radii Point
RS Raw Sewage
RTU Remote Terminal Unit
RUSELFAC Revised Universal Soil Loss Equation For Application In Canada
RUSLE Revised Universal Soil Loss Equation
RW Raw Water or Reclaimed Water or Recycle Water or Retaining Wall
RWY Railway
S Sanitary Or Sealed Manhole Or Slope Or South or Sealed
S DUMP Septic Tank Dumping Manhole
S.P.D. Standard Proctor Density
S/S South Side Or Spigot To Spigot
S/W Sidewalk
SA Service Air

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SB South Bound
SBO Shoulder Breakover
SC Soil Cement Base Or Spiral To Curve or Scum or Spiral-Curve Intersect
SCADA Supervisory Control And Data Acquisition
SCBHS Standard Concrete Barrier Half Section
SCP Source Control Practice
SCREEN Screenings
S-CRI Special Purposed-City And Regional Infrastructure (Land-Use)
SCS Method Soil Conservation Service Method
SD Storm
SE South East Or Spigot End or Secondary Effluent
SEC Second or Section
SED Sediment Manhole
SEP Separate Walk
SERV Service
SERV RD Service Road
SG Safety Gate
SHLD Shoulder
SHT Sheet
SI Set In Field
SL Slip Liner or sludge or Stake Line or Street Light
SL FM Sludge Force Main
SL LAG Sludge Lagoon
SM Stone Mound
SMDP Staged Master Drainage Plan
SOP Standard Operating Procedure
SP Special Projects And Contracts
SPEC Specifications
SPI Reverse Spiral Intersect
SQ Square
SR School Reserve
SRC Sulphate Resistant Concrete
SRS Spiral To Reverse Spiral
SS Sanitary or Spiral-Spiral Intersect
SS_LRB Simple Spiral Large Radius at Beginning
SS_LRE Simple Spiral Large Radius at End
SS_SRB Simple Spiral Small Radius at Beginning
SS_SRE Simple Spiral Small Radius at End
ST Short Tangent or Spiral to Tangent or Steel or Street or Storm Water or Spiral-
Tangent Intersect
STA Station

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STC Stromceptor Manhole
STD Standard
STN Stationary
STR Structure
SU Supernatant
SUB Subnatant
SUL Sulphuric Acid
SUMP Sump Pit
SUP Supply
SUSTAIN model System For Urban Stormwater Treatment And Analysis Integration Model
SW South West Or Swale or Seal Water
SWMHYMO Stormwater Management Hydrologic Model
SWMM Stormwater Management Model
SWMR Stormwater Management Report
SWP Sidewalk Profile
SYM Symbol
SYP Syphon
T Telephone (Telus) Or Test Point Or Tangent
T&S Topsoil And Seed
T= Tangent Length
TAN Tangent
TB Thrust Block
TC Terrace or Traffic Control
TCI Tape Wrapped Cast Iron
TDCW Treated Domestic Cold Water
TDG Treated Digested Gas
TDI Tape Wrapped Ductile Iron
TDP Total Dissolved Phosphorus
TDS Total Dissolved Solids
TEMP Temporary
TEW Treated Effluent Water
TFS Thickened Fermented Sludge
TIMP Total Imperviousness
TKN Total Kjeldahl Nitrogen
TL Tunnel Liner
TMH Test Manhole
TN Total Nitrogen
TOC Top Of Curb
TOP Top Of Pipe
TOR Top Of Rail

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TOS Top Of Slab
TP Total Phosphorus
TPS Thickened Primary Sludge
TR Trail Or Transite
TR PL Treatment Plant
TRANS Transformer
TRANS SEC Transition Section
TRM Turf Reinforcement Mat
TS Tangent To Spiral or Tangent-Spiral Intersect
TSS Total Suspended Solids
TT Tangent Type
TUC Transportation Utility Corridor
TUDI Tape Wrapped Urethane Ductile Iron
TV Tapping Valve
TWAS Thickened Was
TWP Township
TYP Typical
(U)NWL (Upper) Normal Water Level
U/G Underground
UC Under Construction
UG Underground
ULT Ultimate
UNK Unknown
UPG Upgrade
UPS Uninterruptible Power Supply
UR/W Utility Right-Of-Way
USEPA United States Environmental Protection Agency
USLE Universal Soil Loss Equation
V Valve
VAC Vacuum Air
VAR Varies
VBD Vertical Bend Down
VBU Vertical Bend Up
VC Valve Chamber Or Vertical Curve
VCC Vertical Compound Curve Intersect
VCCE Vertical Compound Curve Intersect Elevation
VCCS Vertical Compound Curve Intersect Station
VCT Vitrified Clay Tile
VEL Velocity
VENT Vent

Published on: 2018-07-01

VERT Vertical
VFD Variable Frequency Drive
VI Villas
VL Villas
VOL Volume
VPI Vertical Point of Intersection
VPI Vertical Point Of Intersection
VRC Vertical Reverse Curve Intersect
VRCE Vertical Reverse Curve Intersect Elevation
VRCS Vertical Reverse Curve Intersect Station
VW View
W West Or Width
W/S West Side
W/W Walkway
WAS Waste Activated Sludge
WASP Water Quality Analysis Simulation Program
WB West Bound
WCR Wheel Chair Ramp
WH Canal Western Headworks Canal
WinSLAMM Source Loading And Management Model For Windows
WK Walk
WMH Weir Manhole
WMP Water Management Plan
WO Wash Out
WP Wooden Post Or Watershed Plan
WT Wall Thickness Or Weight
WTD Weeping Tile Drain
WW Waterworks or Well Water
WY Way
X Sacrificial Anode
X-FALL Crossfall
XIMP Directly Connected Imperviousness
XP-SWMM Expert Stormwater Management Model
X-SEC Cross Section
Y Impressed Current Anode
YDI Yellow Jacket Ductile Iron
YJST Yellow Jacket Steel
YUDI Yellow Jacket Urethane Ductile Iron

Published on: 2018-07-01