This subassembly creates a stone-filled drain structure with a circular pipe inside.
Attachment
The attachment point for this subassembly can be at the bottom center, the top center, or the top corner of the drain structure.
Input Parameters
Note: All dimensions are in meters or feet unless otherwise noted. All slopes are in run-over-rise form (for example, 4 : 1), unless indicated as a percent slope with a “%” sign.
| Parameter | Description | Type | Default |
|---|---|---|---|
| Side |
Specifes to insert the subassembly either on the right or the left side of the attachment point. |
Left / Right | Right |
| Attachment Point | Specifies location of subassembly attachment point. | String; (a) Top center; (b) Bottom center, (c) Top corner | Top corner |
| Bottom Width | Bottom Width of the trench | Numeric, Positive |
1.0 ft 0.3 m |
| Top Width | Top width of the trench | Numeric, Positive |
1.5 ft 0.5 m |
| Depth | Total depth of the trench | Numeric, Positive |
2.0 ft 0.6 m |
| Bedding Depth | Depth of the pipe bedding over trench bottom | Numeric, Positive |
0.6 ft 0.2 m |
| Pipe Diameter | Drain pipe diameter | Numeric, Positive |
0.6 ft 0.2 ft |
| Pipe Thickness | Thickness of the pipe material (optional) | Numeric, Positive |
0.0 ft 0.0 m |
Target Parameters
This section lists the parameters in this subassembly that can be mapped to one or more target objects, such as a surface, alignment, or profile object in a drawing. For more information, see To Specify Corridor Targets.
| Parameter | Description | Status |
|---|---|---|
| Depth | Depth of the trench can be optionally be overridden from a profile elevation. If the attachment point is on the top of the trench, then this profile is assigned for the trench bottom and vice-versa. The following object types can be used as targets for specifying this elevation: profiles, 3D polylines, feature lines, or survey figures. | Optional |
Output Parameters
Behavior
The subassembly builds the shape for a simple drain structure as shown in the above illustration.
Layout Mode Operation
In layout mode, this subassembly draws as it is defined using the input parameters, starting from the attachment point.
Point, Link, and Shape Codes
The following table lists the point, link, and shape codes for this subassembly that have codes assigned to them. Point, link, or shape codes for this subassembly that do not have codes assigned are not included in this table.
| Point/Link | Codes | Description |
|---|---|---|
| P1 | Drain_Bottom | |
| P2 | Drain_Bottom_Outside | |
| P3 | Drain_Top_Outside | |
| P4 | Drain_Top_Inside | |
| P5 | Drain_Bottom_Inside | |
| P6 | Drain_Center | |
| P7 | Flow_Line | Use existing point code, if any, among curb and gutters. |
| L1 | Top, Drain_Top | |
| L2, L3, L4 | Datum, Drain_Bottom | |
| S1 | Trench_Backfill | |
| S2 | Drain_Area |
Coding Diagram
