B.11 Conduit/2D Conduit* Properties
| Name | User-assigned conduit name. |
| Inlet Node | Name of node on the inlet end of the conduit (which is normally the end at higher elevation). |
| Outlet Node | Name of node on the outlet end of the conduit (which is normally the end at lower elevation). |
| Description | Click the ellipsis button (or press Enter) to edit an optional description of the conduit. |
| Tag | Optional label used to categorize or classify the conduit. |
| Shape | Click the ellipsis button (or press Enter) to edit the geometric properties of the conduit's cross section. |
| Max. Depth | Maximum depth of the conduit's cross section (feet or meters). |
| Length | Conduit length (feet or meters). |
| Roughness | Manning's roughness coefficient (see Section A.7 for closed conduit values or Section A.8 for open channel values). |
| Inlet Offset | Depth or elevation of the conduit invert above the node invert at the upstream end of the conduit (feet or meters). |
| Outlet Offset | The depth or elevation of the conduit invert above the node invert at the downstream end of the conduit (feet or meters). |
| Initial Flow | Initial flow in the conduit (flow units). |
| Maximum Flow | Maximum flow allowed in the conduit (flow units) – use 0 or leave blank if not applicable. |
| Entry Loss Coeff. | Head loss coefficient associated with energy loss at the entrance of the conduit. For culverts, refer to Table A11. |
| Exit Loss Coeff. | Head loss coefficient associated with energy loss at the exit of the conduit. For culverts, use a value of 1.0. |
| Avg. Loss Coeff. | Head loss coefficient is associated with energy loss along the length of the conduit. |
| Flap Gate | YES, if a flap gate exists that prevents backflow through the conduit, or NO if no flap gate exists. |
| Culvert Code | The code number of inlet geometry if conduit is a culvert – leave blank otherwise. Culvert code numbers are listed in Table A10. |
| Active | Conduits having cross sections like ‘Rec_Open’, ‘Trapezoidal’, ‘Triangular’, ‘Parabolic’, ‘Power’, ’Irregular’ will be inactive in the 2D model, other conduits will remain active. Only active features will be used for calculation. |
* Only applicable for GeoSWMM 2D Modeling