The Gutter Catalog dialog box allows you to create, edit, and delete gutter definitions that can then be assigned to gutter or catchbasin elements in your model.

The following gutter shapes are available from this dialog:

• Conventional
• Irregular
• Parabolic
• Trapezoidal
• V-Shaped

You can also import a gutter definition from the Gutter Catalogs Engineering Library, and export gutter definitions to the Engineering Library for later use.

The dialog box contains a list pane on the left and a tabbed input data area on the right, and includes the following controls:

New: Creates a new gutter definition in the list pane on the left.

Delete: Deletes the currently highlighted gutter definition.

Rename: Lets you rename the currently highlighted gutter definition.

Report: Lets you generate a preformatted report that contains the input data associated with the currently highlighted gutter definition.

Synchronization Options: Clicking this button opens a submenu containing the following commands:

• Browse Engineering Library--Opens the Engineering Library manager dialog, allowing you to browse the Gutter Catalogs.
• Synchronize From Library--Lets you update a set of gutter definitions previously imported from one of the Gutter Catalogs. The updates reflect changes that have been made to the library since it was imported.
• Synchronize To Library--Lets you update one of the existing Gutter Catalogs using current gutter definitions that were initially imported but have since been modified.
• Import From Library--Lets you import a gutter definition from one of the existing Gutter Catalogs.
• Export To Library--Lets you export the current gutter definitions to one of the existing Gutter Catalogs.
• Connect to Library--Lets you create a connection between the gutter catalog and the specified engineering library.

The fields and controls that appear in the tabbed area depend on which gutter shape is chosen. Not all fields will be available for all gutter types.

Gutter Tab

• Gutter Shape: Select the shape of the gutter.
• Road Cross Slope: Enter the transverse slope of the road. Applicable to Conventional and V-Shaped gutters.
• Gutter Depression?: If this box is checked, the gutter slope differs from the road cross slope. Applicable to Conventional and V-Shaped gutters.
• Gutter Cross Slope: The transverse slope of the gutter. This value is typically equal to or greater than the road cross slope. Applicable to Conventional and V-Shaped gutters.
• Gutter Width: The horizontal width of the gutter. This is equal to the distance from the curb face to the point at which the road cross slope begins. Applicable to Conventional and V-Shaped gutters.
• Material: The material of the gutter.
• Manning’s n: The Manning’s n roughness value for the gutter.
• Kutter’s n: The Kutter’s n roughness value for the gutter.
• Darcy-Weisbach e: The Darcy-Wesibach e roughness value for the gutter.
• Hazen Williams C: The Hazen Williams C roughness value for the gutter.
• Station/Elevation (Relative) Table: This table allows you to define the shape of an Irregular gutter by entering Station/Elevation points.
• Station: The cross-sectional distance at the current point. You can enter these in any order that defines the gutter (e.g., from left-to-right, from right-to-left, with an upstream or downstream perspective).
• Elevation (Relative): This field allows you to define the height above the gutter invert at that cross section point. This value can be a negative number. Note that the elevation defined here is used purely to define the shape of the section, and it is not meant to represent a real elevation. In the calculations, Bentley SewerGEMS uses the irregular section shape defined here, as well as the Invert (Upstream) and Invert (Downstream) properties of the conduit. To do this, Bentley SewerGEMS sets the lowest point on the irregular section equal to the invert elevation at the upstream and downstream ends of the conduit, and the elevation of other points in the irregular section are adjusted accordingly.
• Height: The height of the parabolic gutter.
• Width: The width of the parabolic gutter.
• Bottom Width: The width along the bottom of the trapezoidal gutter.
• Left Side Slope: The left side slope of the trapezoidal gutter.
• Right Side Slope: The right side slope of the trapezoidal gutter.
• Curb Cross Slope: The slope of the curb, specific to a V-Shaped gutter. Conventional gutters assume a vertically sloped curb.

Library Tab

This tab displays information about the gutter definition that is currently highlighted in the list pane. If the gutter definition is derived from an engineering library, the synchronization details can be found here. If the gutter definition was created manually for this model, the synchronization details will display the message Orphan (local), indicating that the gutter definition was not derived from a library entry.

Notes Tab

This tab contains a text field that allows you to enter descriptive notes that will be associated with the currently highlighted gutter definition.

To create a new Gutter:

1. Click the New button above the list pane.
2. Type a name for the gutter.
3. Choose a Gutter Shape from the Gutter Shape field in the tabbed section to the right.
4. Type in input data in the input fields in the tabbed section to the right. The available fields will vary according to the Gutter Shape that is chosen.
5. Click Close when you have finished defining the gutter parameters.

To import a gutter from the Engineering Library:

1. Click the Synchronization Options button and select Import From Library from the submenu.
2. Expand the Gutter Catalogs node to view all of the existing gutter libraries. There will be the default Gutter Catalogs, along with any additional custom libraries you've created.
3. Expand the desired library to view all of the gutter definitions within that library. Click on the gutter definitions to view their properties on the right side of the dialog.
4. When you have chosen the desired gutter definition click the Select button. The new gutter will appear in the list pane.

To access the Gutter Catalog:

In Stand-Alone AutoCAD: Click Components > Catalog > Gutter Catalog.

In MircoStation and ArcGIS: Click the Bentley SewerGEMS menu, then select Components > Gutter Catalog.