Culvert (Water Overlay): Difference between revisions
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Culverts are effectively tunnels or pipes directly connecting two bodies of water, and allow water to flow in either direction. Culverts can also | Culverts are effectively tunnels or pipes directly connecting two bodies of water, and allow water to flow in either direction. Culverts can also model land tunnels, allowing water to flow through while traversing land. The throughput of a culvert is limited by its dimensions. | ||
Culverts are assumed to have a circular cross-section, and level (i.e. not inclined). | Culverts are assumed to have a circular cross-section, and level (i.e. not inclined). | ||
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*** [[Culvert n (Water Overlay)|CULVERT_N]] : 0.014; | *** [[Culvert n (Water Overlay)|CULVERT_N]] : 0.014; | ||
: The attributes of the default culvert can be [[How to change Function Values for a Function|changed]] using the [[Function Values Table]] | : The attributes of the default culvert can be [[How to change Function Values for a Function|changed]] using the [[Function Values Table]] | ||
* If a culvert is placed in a waterway, and the waterway is not otherwise interrupted, water will be able to flow past the culvert via the waterway itself. | * If a culvert is placed in a waterway, and the waterway is not otherwise interrupted, water will be able to flow past the culvert via the waterway itself. Ensure the waterway is obstructed by increasing the [[Elevation model (Water Overlay)|terrain height]], forcing water to flow exclusively through the culvert. | ||
|howtos= | |howtos= | ||
* [[How to correct multiple buildings on the same location]] | * [[How to correct multiple buildings on the same location]] | ||
Latest revision as of 09:39, 8 July 2026
Culverts are effectively tunnels or pipes directly connecting two bodies of water, and allow water to flow in either direction. Culverts can also model land tunnels, allowing water to flow through while traversing land. The throughput of a culvert is limited by its dimensions.
Culverts are assumed to have a circular cross-section, and level (i.e. not inclined).
A culvert is a line-based building.
| Icon | Key | Unit | Range | Description | Default value |
|---|---|---|---|---|---|
 |
CULVERT_DIAMETER | m | 0 to 10000 | The inside diameter of the circular-shaped Culvert, or the inside width of a rectangular-shaped Culvert. | 1 |
 |
CULVERT_RECTANGULAR_HEIGHT | m | 0 to 10000 | The inside height of a rectangular shaped Culvert. | 0 |
 |
CULVERT_THRESHOLD | m + datum | -10000 to 10000 | The height of the inner side of the culvert's underside (or the threshold height at which water starts flowing through the culvert). Each end-point of a culvert will be put on the threshold height or the terrain height at that end-point, whichever value is the highest. | -10000 |
 |
CULVERT_N | manning value | 0 to 3.4028235E38 | The manning friction value of the culvert's material, which influences the flow speed. | 0,014 |
Notes
- A default Culvert Function exists with the following properties:
- ID: 938
- Placement Type: HYBRID
- Category: UNDERGROUND
- Attributes:
- CULVERT_DIAMETER : 1.0;
- CULVERT_N : 0.014;
- The attributes of the default culvert can be changed using the Function Values Table
- If a culvert is placed in a waterway, and the waterway is not otherwise interrupted, water will be able to flow past the culvert via the waterway itself. Ensure the waterway is obstructed by increasing the terrain height, forcing water to flow exclusively through the culvert.
How-to's
- How to correct multiple buildings on the same location
- How to correct weir or pump or culvert drawn as point
- How to correct a building in an uninterrupted waterway
- How to correct a building at the edge of the project area
- How to correct a culvert connecting two water level areas
See also
