Part Properties Tab (Pipe Properties Dialog Box)

Use this tab to view or edit properties associated with this pipe.

This tab displays the properties associated with this pipe, along with their current values. Pipe properties define a variety of characteristics of the pipe object, including its basic size and shape, and certain behaviors such as flow direction and conditions under which the pipe part will automatically adjust its size.

Certain properties are specific to a type of pipe. For example, circular shaped pipes use the Inner Pipe Diameter property while rectangular shaped pipes use the Inner Pipe Width and Inner Pipe Height properties.

Some properties are read-only and others are editable. To change an editable property, double-click on the Value field and enter in a new value, or select one from the list.

General

These properties specify general characteristics of the pipe, such as the flow direction method, flow direction, and the surface and alignment referenced.

Pipe Flow Direction Method: Specifies the method that is used to determine the flow for this pipe. Option are bi-directional, start to end, end to start, or according to the current slope of the pipe.
Flow Direction: Specifies the current flow direction of the pipe, relative to the start and endpoint of the pipe. When you begin drawing a pipe, the flow direction is based on the direction in which you draw the pipe.
Reference Surface: Specifies the surface of the pipe.
Reference Alignment: Specifies the alignment of the pipe.

Geometry

These properties specify characteristics such as the names of the start and end structures, bearing, station data, offsets, slope data, elevation data, and more.

Pipe Start Structure: Specifies the name of the structure connected to the start of the pipe.
Pipe End Structure: Specifies the name of the structure connected to the end of the pipe.
Bearing: Specifies pipe’s bearing.
Pipe Start Station: Specifies pipe’s start station.
Pipe End Station: Specifies pipe’s end station.
Start Offset: Specifies the offset for the start of the pipe.
End Offset: Specifies the offset for the end of the pipe.
Pipe Slope (Hold Start): Specifies the slope of the pipe away from the pipe’s start point.
Pipe Slope (Hold End): Specifies the slope of the pipe away from the pipe’s end point.
Pipe Slope: Specifies the pipe’s slope in absolute value.
Start Invert Elevation: Specifies the pipe’s starting point elevation according to the pipe’s invert.
End Invert Elevation: Specifies the pipe’s ending point elevation according to the pipe’s invert.
Start Crown Elevation: Specifies the pipe’s starting point elevation according to the pipe’s crown.
End Crown Elevation: Specifies the pipe’s ending point elevation according to the pipe’s crown.
Pipe Start Easting: Specifies the easting of the pipe’s starting point.
Pipe Start Northing: Specifies the northing of the pipe’s starting point.
Pipe End Easting: Specifies the easting of the pipe’s ending point.
Pipe End Northing: Specifies the northing of the pipe’s ending point.
Start Centerline Elevation: Specifies the pipe’s starting point elevation according to the pipe’s centerline.
End Centerline Elevation: Specifies the pipe’s ending point elevation according to the pipe’s centerline.
Minimum Cover: Specifies the minimum depth of cover along the entire length of pipe, from the top outside of the pipe to the reference surface.
Maximum Cover: Specifies the maximum depth of cover along the entire length of pipe, from the top outside of the pipe to the reference surface.

2D Length: Specifies the actual two-dimensional length of the pipe measured from the start of the pipe to the end of the pipe.
Note: If you have applied the Set Pipe End Location rule, then the 2D Length and 3D Length values are the 2D and 3D lengths of the pipe according to the Start Location and End Location settings specified by that rule (and may be measured relative to the inner or outer walls of the structures).
3D Length: Specifies the actual three-dimensional length of the pipe measured from the start of the pipe to the end of the pipe.
2D Length - Center To Center: Specifies the two-dimensional length of the pipe measured from the center of the connected starting structure to the center of the connected ending structure.

Note: The 2D Length - Center To Center and 3D Length - Center To Center values are measured from the structure insertion point of the connected starting structure to the structure insertion point of the connected ending structure.

3D Length - Center To Center: Specifies the three-dimensional length of the pipe measured from the center of the connected starting structure to the center of the connected ending structure.
2D Length - To Inside Edges: Specifies the two-dimensional length of the pipe, measured from the inside edge of the connected starting structure to the inside edge of the connected ending structure.
3D Length - To Inside Edges: Specifies the three-dimensional length of the pipe, measured from the inside edge of the connected starting structure to the inside edge of the connected ending structure.

Resize Behavior

This property specifies the pipe behavior that occurs when the pipe is automatically resized.

On Resize, Hold: Specifies if the pipe will hold its invert, crown, or centerline elevation when the pipe is automatically resized due to an edit.

Part Data

These properties specify a variety of part characteristics, such as part type, part subtype, and the part size name as defined in the part catalog. Some of these properties specify the dimensions that define the part’s basic shape and therefore are read-only.

Part Type: Specifies pipe’s part type.
Part Subtype: Specifies pipe’s subtype.
Part Description: Specifies pipe’s description.
Part Size Name: Specifies the part size name.
Cross Sectional Shape: Specifies the pipe’s cross sectional shape, such as circular, egg-shaped, elliptical, or rectangular.
Wall Thickness: Specifies the wall thickness for this pipe, measured from the inside edge of the pipe to the outside edge of the pipe.
Material: Specifies the material defined for this part. This optional property is used mainly for labeling purposes. It allows you to identify the type of material used to construct this part.
Minimum Curve Radius: Specifies the minimum curve radius for this part.
Manning Coefficient: This optional property specifies a Manning Coefficient value for a given part size.
Hazen Williams Coefficient: This optional property specifies a Hazen Williams Coefficient value for a given part size.
Darcy Weisbach Factor: This optional property specifies a Darcy Weisbach Factor value for a given part size.
Inner Pipe Diameter: Specifies the inner diameter for this pipe. This property is used for circular shaped pipes only.
Inner Pipe Width: Specifies the inner width for this pipe. This property is used for non-circular shaped pipes only, such as rectangular and egg-shaped.

Inner Pipe Height: Specifies the inner height for this pipe. This property is used for non-circular shaped pipes only, such as rectangular and egg-shaped.

Hydraulic Properties

These properties specify the hydraulic property information related to the pipe. They are responsible for displaying the hydraulic grade line and energy grade line. Hydraulic grade lines and energy grade lines are displayed as a straight line through structures, connected between the HGL Up or EGL Up property from one pipe to the HGL Down or EGL Down property of the next pipe.