HTMUA Asset Management System Database Dictionary

Sanitary Sewer System - Network Features

The Sewer Network dataset contains the components of the wastewater or sewer collection system.  The components form a combined gravity and pressure-driven network, whose features are modeled as either lines or nodes.  The linear components are comprised primarily of mains (force or gravity) and laterals, while the nodal components include pumping stations or manholes.  The layer contains descriptive information about each of the features and supports various maintenance and modeling operations.

This dataset represents all sewer system mains, polygons and services. Sewer mains are broken (and points present) at the following appurtenance types:

The following appurtenance types do not break the associated sewer mains and are represented w.r.t. the symbol assigned to it:

Corrosion Test Station

Line Features:

 

The structure of Line features including item definitions and attribute domains for Sewer Mains and Lateral Lines feature class is as follows:

Point Features:

 

The structure of Point features including item definitions and attribute domains for below listed feature class is as follows:

 

1. Fitting

2. Lift Station

3. Clean Out

4. Service Point

5. System Valve

6. Control Valve

7. Manhole and

8. Network Structure

Home | Sanitary Sewer | UML | Network Features | Polygon Features | Symbology

Dataset Name:

Sewer Network

Feature Types:

Lines

 

Points

External Table Relations:

None

Fittings (Tee, Bends, PipeChange, Reducer, Wye and DeadEnd)

System Valves (Gate and Plug)

Control Valves (AirRelease)

Lift Station

Service Point

Cleanout (Cleanout and Flushing Structure)

Manhole (Standard, Drop, Monitoring, Diversion, Metering and DogHouse)

Network Structure (GreaseTrap, MeteringFacility, SamplingStation, SepticTank, WetWell and DryWell)

Sl.No.

Description

Item Name

Type

Width

 

Common Items

 

 

 

1

Internal Unique Number

ObjectID

ObjectID

4

2

GIS Facility ID

FacilityID

String

20

3

New Grid Number

NewGridNo

String

255

4

Old Grid Number

OldGridNo

String

255

5

Feature Type in Integer

Subtype

Long

4

6

Feature Type / Name in String

SubtypeName

String

50

7

Year of Installation

InstallYear

Long

4

8

Service Status

Status

String

20

9

Reference Source

Source

String

20

10

Pipe Owner

Owner

String

60

11

Source Number

Barcode

String

40

12

Field Verification Code

FieldVerification

String

20

13

Pipe Diameter

Diameter

Double

8

14

Pipe Material

Material

String

255

15

Length of arcs

Shape_Length

Double

8

16

Length of Line

LineLength

Double

8

 

Gravity Main Line

 

 

 

17

Exterior Coating

ExteriorCoating

String

20

18

Interior Lining

InteriorLining

String

20

19

Up Manhole Number

UpManH

String

255

20

Down Manhole Number

DnManH

String

255

21

From Manhole Facility ID

FromID

String

255

22

To Manhole Facility ID

ToID

String

255

23

Inlet Elevation

InElev

Double

8

24

Outlet Elevation

OutElev

Double

8

25

Actual Length of Pipe

ActualLength

Double

8

26

Pipe Length as on source

PipeLength

Double

8

27

Length Difference

Len_Diff

Double

8

28

Slope of Pipe

Slope

Double

8

29

Offset Value

Offset

Double

8

30

Offset Reference

OffsetRef

String

255

 

Force Main Line

 

 

 

31

Exterior Coating

ExteriorCoating

String

20

32

Interior Lining

InteriorLining

String

20

33

Up Manhole Number

UpManH

String

255

34

Down Manhole Number

DnManH

String

255

35

From Manhole Facility ID

FromID

String

255

36

To Manhole Facility ID

ToID

String

255

 

Lateral Line

 

 

 

37

Station Points

StationPt

String

25

Item Definitions

 

 

 

 

 

 

 

 

 

 

 

 

Common Items:

 

 

 

 

 

 

 

 

 

 

 

 

ObjectID

Unique, non-null identifier for each pipe or service. This field is populated by default in the system, whenever the features are Deleted/Added.

 

 

 

 

 

 

 

 

FacilityID

Unique, non-null identifier for each pipe or service. The GIS facility ID will be unique for each arc in any feature class. The GIS facility ID is comprised of a four-digit grid number "3612" and a three-digit number. (e.g., "3612100"). Please see the FacilityID Numbering scheme for more details on each Feature Class

 

 

 

 

 

 

 

 

 

 

 

NewGridNo

New Grid Number with reference to the features falling in a particular Grid Boundary Drafted afresh.

 

 

 

 

 

 

 

 

OldGridNo

Old Grid Number with reference to the features falling in a particular Grid Boundary sent by Client.

 

 

 

 

 

 

 

 

Subtype

Facility type code in integer form.