Bridge Opening Data Fields

Bridge Opening data can be edited on either the Bridge Opening Grid Window of the Links Grid or the Bridge Opening Property Sheet.

To view and edit all bridge opening data, use the Property Sheet.

The following table describes all the bridge specific data which can be used to define a bridge opening.

Common Data Fields

Fields that are common to the majority of objects can be found in the Common Fields topic.

Bridge Opening Data

Database Table Name: hw_bridge_opening

Show Columns

Database Names

Size, Type and Units

Defaults and Error Limits

Field Name

Help Text

Database Field

Data Type

Size

Units

Precision

Default

Error Lower Limit

Error Upper Limit

Warning Lower Limit

Warning Upper Limit
ID Unique identifier for the bridge opening id Text 64   0          
Bridge US node ID Upstream node ID of bridge to which the opening is associated. bridge_us_node_id Text 64   0          
Bridge link suffix Link suffix of bridge to which the opening is associated. bridge_link_suffix Text 1   0 1        
Inlet ID

ID of Bridge Inlet object defining loss conditions at opening inlet.

Note

You cannot specify an Inlet ID if you have specified a Inlet blockage ID.

inlet_id Text 64   0          
Outlet ID

ID of Bridge Outlet object defining loss conditions at opening outlet.

Note

You cannot specify an Outlet ID if you have specified a Outlet blockage ID.

outlet_id Text 64   0          
Inlet Blockage ID

ID of Bridge Blockage object defining blockage conditions at the opening inlet.

Note

You cannot specify an Inlet blockage ID if you have specified a Inlet ID.

inlet_blockage_id Text 64   0          
Outlet Blockage ID

ID of Bridge Blockage object defining blockage conditions at the opening outlet.

Note

You cannot specify an Outlet blockage ID if you have specified a Outlet ID.

outlet_blockage_id Text 64   0          
Asset ID For reference only. Designed as a reference to an asset database, but could be used for anything. asset_id Text 64   0          
System type

Choose the System Type from the dropdown list. See System Type for more information.

Database Value

Description

 Help Text

STORM

 Storm Rainfall collection system

FOUL

 Foul Wastewater collection system (UK terminology)
SANITARY Sanitary Wastewater collection system (US terminology)
COMBINED Combined Rainfall and wastewater collection system
OVERLAND Overland Overland floodwater collection system
OTHER Other Other system type
system_type Text 10   0 Other        
Piers

Geometry and location data of piers within the bridge opening is entered in the Piers editor. The editor is displayed by selecting the (Ellipse) button.

 piers Array                
Shape ID Select a Shape from the drop-down list or type in a Shape name. shape Text 64     CIRC        
Width

Opening dimension

 conduit_width Double   BOS 0   1      
Height

Opening dimension

 conduit_height Double   BOS 0   1      
Springing height

Enabled when Shape ID is set to ARCHSPRUNG.

Difference in elevation between invert and springing point.

 springing_height Double   BOS 3 0 0      
Roughness Manning's n

The roughness value for the opening.

 roughness_N Double     4          
Length Length of the opening conduit_length Double   L 1   1 5000    
Inflow

If the Inflow is lateral simulation parameter is checked, the simulation engine applies this inflow value laterally along the link.

If the Inflow is lateral parameter is not checked, the simulation engine applies this inflow value to the node at the end of the link with the highest invert level. In the case of equal invert levels, the flow is assigned to the upstream node.

There is a default figure for inflow in the user-defined defaults.

 inflow Double   Q 5   0   0  
US invert level Invert level for the upstream end of the opening, measured above system datum. us_invert Double   Z 3   -9999 9999   6000
DS invert level Invert level for the downstream end of the link, measured above system datum. ds_invert Double   Z 3   -9999 9000   6000
US headloss type

This defines the headloss conditions at the upstream end of the opening. InfoWorks ICM provides four built-in headloss curves, or you can define your own headloss curves.

The four built-in curves are:

High

for example badly benched manholes

None

no headloss

Normal

for exanple well constructed manholes

Fixed

the headloss coefficient represents the k value in the headloss equation. Unlike normal and high headloss types the k value remains the same regardless of surcharge ratio and flow direction

Select the curve you want from the dropdown list.

The default value is set from user-defined defaults.

For more information on headloss, and how to define your own headloss curves, see Headloss Curves.

 us_headloss_type Text 64   0          
DS headloss type See US headloss type ds_headloss_type Text 64   0          
US headloss coefficient Multiplying factor for the selected headloss curve to represent additional losses us_headloss_coeff Double     2   0      
DS headloss coefficient Multiplying factor for the selected headloss curve to represent additional losses ds_headloss_coeff Double     2   0      
Points

This field defines the geometry of the link. The underlying data consists of a series of (x,y) pairs defining the vertices of the line. Each line is made up of a series of straight lines between the defined (x,y) points.

This data is not displayed on the grid or property sheet.

Link Vertice Export

Link vertices are included when you export link data to CSV files. There are two options available for exporting link vertices. These are selected on the Select CSV Export Options Dialog using the Coordinate Arrays Format dropdown list. The options are:

  • Packed - The data is exported as a series of x,y pairs.

  • Separately - the data is appended to the end of the row containing the link data. Each x and y value is in a separate (comma separated) field.

 point_array Array   XY 0          

InfoAsset unique ID

Unique ID associated with the corresponding object in an InfoAsset Manager database. When importing from InfoAsset Manager, the InfoAsset ID can be copied from the InfoAsset database in order to maintain links between the two networks.

asset_uid

GUID

 

 

0

 

0

0

0

0

Bridge Openings

Bridges

Blockages

Bridge Blockage Data Fields

Links Grid

Property Sheets