Used to insert a node.

Ribbon

Layout > Layout > Insert Node

Workflow

Select Reference Element for Node Elevation. Reset to Type an Elevation - pick the element that you want to use to define the top elevation of the node. This can be a linear element which has an active profile, a mesh, or a terrain model. If you are placing a Catch Basin, and you select a terrain model as the elevation reference, then the dialog expands to let you check on an option for Catchment Delineation, and select the feature definition to use for the catchment area. The elevation normally represents the top of the cover for a chamber. Press Reset if you want to enter an elevation. If the node being inserted only contains one solid feature symbology, such as might be the case for fittings on a water supply pipe, then the Select Reference Element for Node Elevation prompt is not displayed. This is because if there is only one solid feature symbology, then the node cannot stretch, and its elevation is defined by the conduit that it is being inserted into.

If you are placing a catch basin, and you select a terrain model as the elevation reference, then the Road Cross Slope value can be measured from this surface, instead of being defined in the Hydraulic Prototype. Please see the "Measure Road Cross Slope" section below for more information on this.

If you are placing a cross section, headwall, or outfall node which has a single 3D cell, then you can check on the "Elevation is the Invert" option. Press Reset if you want to enter an elevation. If the "Elevation is the Invert" check box is checked on, then the elevation - either from the Elevation Reference or the typed value, is assigned to the invert of the node instead of the top or ground. The vertical offset field is also available if "Elevation is the Invert" is checked, so that you can place a headwall at a distance below the invert of the watercourse, for example.

If you are placing a cross section that uses the "From Surface" setting, then the workflow changes slightly. Please see the "Measure Road Cross Slope" section below for more information on this.

Select Conduit Invert Reference - pick the conduit that the node will be inserted in.

Split Conduit - choose whether the conduit should be split into two separate conduits - one on either side of the node - or should remain as a single conduit.

Define Location - define a point to locate the node along the conduit. Note that the text of the prompt tells you the type of node being place, such as Place Manhole for example. If you chose a reference element in the previous prompt, then this prompt lets you define a vertical offset from that element. If you pressed Reset, then this prompt lets you type in an elevation.

Select Rotation Mode - choose whether you want to define the rotation of the node using an absolute value, or relative to an alignment (which can be any linear element).

If you choose Absolute, then next prompt is to Select Rotation or Reset to Place again. The rotation is defined as an absolute value, using the settings defined in File > Settings > File > Design File Settings > Angle Readout. If Civil AccuDraw is used the define the location of the node, then the compass will lock to the nearest compass point, which is defined in the Civil AccuDraw Settings. The rotation value is still absolute - it will not update if the element selected in Civil AccuDraw Station and Offset is subsequently modified.

If you choose Relative to alignment, then the next prompt is to Locate Reference Element for Rotation. Select a linear element, from the active design file or a reference. The next prompt is to Select Rotation or Reset to Place again. The rotation value is relative to the selected linear element, and will be updated if the element is subsequently modified.

Feature Definition - Defines the feature definition to be assigned to the new node.

Name Prefix - the feature definition provides a default naming prefix, which can be overridden here.

Notes:

The top elevation of the node can be set to match a surface, such as in the case of a catch basin for example. You cannot select the conduit itself, since this would result in a node with a height of zero. In the cases of fittings, such as valves and bends on a water line or other pressure line, the top elevation may not be relevant at all, so the feature definition can be set up so that it only has one solid feature symbology (the bottom template). In this situation, you do not need to specify the top elevation. The single 3D cell is inspected, and if it contains one construction class, line style 6 point, then its position defines both the invert and the top elevation. If two construction class, line style 6 points are found, then the difference in elevation between them is added to the invert elevation, to calculate the top elevation. Inserted nodes take their invert elevation from the conduit invert.

If a node is inserted, and the conduit is not split in two, the position of the node will be updated if the node at either end of the conduit is moved.

Manipulators

Properties

Select the node and click Utility Properties to access the Drainage properties of storm and sanitary nodes, or Utilities properties for any type of node.

Measure Road Cross Slope

The purpose of the Measure Road Cross Slope functionality is to derive the road cross slope from a terrain model, and update it when the terrain model changes, instead of using the value from the prototype, which needs to be manually updated. It applies to catch basins that have a conventional shape of gutter (as defined in HEC-22) - a road cross slope, a gutter cross slope, and a gutter width. Note that the values for the gutter cross slope and width are still read form the prototype. The construction class, line style 3 line in the plan cell is used to determine the direction in which the slope is measured.