Weir Data Fields
Weirs are used for overflow structures and for outlets to storage ponds. Weir data can be edited on either the Weir Grid Window of the Asset Grid or the Weir Property Sheet.
To view and edit all weir data, use the Property Sheet.
The following describes all the data which can be used to define a weir.
Fields that are common to the majority of objects can be found in the Common Fields topic.
Weir Data
Database Table Name: cams_weir
Field Name |
Help Text |
Database Field |
Size |
Precision |
Default |
Error Lower Limit |
Error Upper Limit |
Warning Lower Limit |
Warning Upper Limit |
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ID |
The name of the object. The ID is the primary key in the database for the network object. This means that the ID field of each object must be unique for all objects of the same object type. |
id |
Text |
40 |
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0 |
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US node ID |
Upstream node. |
us_node_id |
Text |
40 |
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0 |
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DS node ID |
Downstream node. |
ds_node_id |
Text |
40 |
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0 |
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Owner |
The proprietor of the asset. |
owner |
Text |
64 |
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0 |
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System type |
System type:
The options available in the dropdown list depend on which coding standard is being used. See the Standards and Choice Lists dialog for further information. |
system_type |
Text |
10 |
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0 |
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Type |
The type of ancillary structure:
The options available in the dropdown list depend on the choices defined in the Standards and Choice Lists dialog. |
type |
Text |
10 |
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0 |
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Operational status |
Current operational status:
The options available in the dropdown list depend on the choices defined in the Standards and Choice Lists dialog. |
status |
Text |
10 |
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1 |
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X coord |
X coordinate of the object. |
x |
Double |
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XY |
2 |
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Y coord |
Y coordinate of the object. |
y |
Double |
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XY |
2 |
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Branch ID |
Numeric field used to identify to which long section the link is associated. (See Defining Branches for further information). |
branch_id |
Long Integer |
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0 |
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Level |
The level at which the weir first comes into operation. For vee and trapezoidal notch weirs, and contracted rectangular weirs, this is the height of the base of the notch. |
level |
Double |
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Z |
3 |
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Width |
The width of the rectangular weir. |
width |
Double |
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MANH_DIM |
1 |
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Length |
The distance across the flat part of the top of the weir measured parallel to the direction of flow. The distance does not include the round noses of the weir Broad Crested Weir only. |
length |
Double |
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L |
3 |
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Height |
Roof Height for the weir. If you enter a value here, the weir behaves as a sluice gate when the water level is above the roof height. If you do not give a value here, it is assumed that the weir does not have a roof. Standard Rectangular Weir types only. |
height |
Double |
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MANH_DIM |
1 |
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Notch height |
The vertical distance from the base (apex) of the notch to the top of the weir plate. Vee and Trapezoidal Notch Weirs only. |
notch_height |
Double |
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MANH_DIM |
1 |
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Notch width |
For Contracted Rectangular Weirs, this is the width of the single notch. For Trapezoidal Notch Weirs this is the width of the base of one notch. The weir may have more than one notch. The side slope of all notches is assumed to be 14 degrees. Contracted Rectangular and Trapezoidal Notch Weirs only. |
notch_width |
Double |
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MANH_DIM |
1 |
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Notch angle |
The angle at the base (apex) of the notch in degrees. This means the full angle, not the angle of side slope. Vee Notch Weir only. |
notch_angle |
Double |
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1 |
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Num notches |
You can have more than one vee or trapezoidal shaped notch in a weir. Enter the number here. All the notches are identical. Vee and Trapezoidal Notch Weirs only. |
num_notches |
Long Integer |
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1 |
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Condition grade |
A measure of asset condition for ancillary assets. By analogy with pipe condition grades, this is usually a number in the range 1-5. Unlike pipe condition grade, there is no distinction between structural and service condition for ancillary assets. |
condition_grade |
Long Integer |
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0 |
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Critical |
A measure of the likely impact of asset failure. The WRC SRM uses the codes A, B, C to represent "A" sewers where failures would be expensive to "C" where failures would be relatively cheap. |
criticality |
Text |
5 |
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0 |
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Security |
The security of the asset from unauthorised access/tampering:
The options available in the dropdown list depend on the choices defined in the Standards and Choice Lists dialog. |
security |
Text |
10 |
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0 |
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Construction date |
Construction or installation date. This is date from which depreciation costs will be incurred for depreciation reports. |
constr_date |
Date / Time |
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0 |
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Condition survey date |
Date of the most recent condition survey of the asset. |
survey_date |
Date / Time |
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0 |
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Installation cost |
The original installation cost of the asset. This generally includes all costs incurred (e.g. mantime, asset purchase costs etc). This information is used in depreciation reports. |
install_cost |
Double |
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WN_COST |
2 |
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Inspection cost |
Estimated cost of asset inspection. |
inspection_cost |
Double |
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WN_COST |
2 |
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Expected lifetime |
The expected lifetime of the asset. This is used in depreciation reports as the period over which installation costs may be depreciated. |
lifetime |
Long Integer |
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0 |
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Rehabilitation cost |
Rehabilitation costs to be incurred in bringing the asset to an acceptable condition. This is used in rehabilitation reports. |
rehab_cost |
Double |
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WN_COST |
2 |
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Replacement cost |
The estimated cost for completely replacing an asset. |
replace_cost |
Double |
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WN_COST |
2 |
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Attachments |
Click the button to display the Attachments Editor, used to attach and manage photos, sketches and other files associated with the network object. See Attachments Editor and Common Data Fields for further details. |
attachments | Array | ||||||||||||||||||||||||
General properties fields | See Common Data Fields for details of field in the General properties section of the property sheet. | ||||||||||||||||||||||||||
User defined properties fields | See Common Data Fields - User Fields for details of fields in the User defined properties section of the property sheet. | ||||||||||||||||||||||||||
Time series links |
Click the button to display the Time Series Data Source Grid, which is used to specify or update the time series data streams that are linked to this weir. |
tsdb_links |
Further information about all the Network Object fields stored in the database can be found in the Network Data Fields section.