CurbOffsetPipe

The CurbOffsetPipe subassembly is used to place a curb and gutter with a pipe behind the curb and gutter. A terrace is also placed behind the curb.

Attachment

The attachment point is at the flange point of the gutter.

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

Specifies which side to place the subassembly. Left/Right

Right

Flange Width

Width from the flange of the gutter to the flowline. Numeric

1.5 ft

0.45 m

Flange Grade

% slope of the gutter. Numeric

6 (%)

Curb Face

Height from the flowline to the top of curb. Numeric

0.5 ft

0.15 m

Curb Depth

Depth of the curb at the flange point. Numeric, positive

0.583 ft

0.18 m

Subbase Depth

Depth of the subbase layer at the attachment point (zero to omit). Numeric, positive

0.25 ft

0.08 m

Subbase Extension

Width that the Subbase layer extends beyond the curb. Numeric

1 ft

0.3 m

Terrace Width

Width of the terrace. Numeric, positive

1 ft

0.3 m

Terrace Grade

% slope of the terrace. Numeric

4 (%)

Pipe Diameter

Drain pipe diameter. Numeric, positive

0.5 ft

0.15 m

Curb Offset

Distance from the back of curb to the drain pipe. Numeric

0.25 ft

0.08 m

Outside Offset

Distance from the drain pipe to the edge of the pipe bedding. Numeric, positive

0.25 ft

0.08 m

Subbase Grade

% slope of the subbase. Numeric

2 (%)

Pipe Crown Depth

Distance from the drain pipe invert to the bottom of the pipe bedding. Numeric, positive

0.25 ft

0.08 m

Target Parameters

This section lists the parameters in this subassembly that can be mapped to one or more target objects. For more information, see To Specify Corridor Targets.

Parameter

Description

Status

Terrace Width

May be used to override the terrace width value and tie the terrace width to an offset alignment. The following object types can be used as targets for specifying the width: alignments, polylines, feature lines, or survey figures. Optional

Terrace Elevation

May be used to override the terrace slope and tie the elevation of the terrace to the elevation of a profile. The following object types can be used as targets for specifying the elevation: profiles, 3D polylines, feature lines, or survey figures. Optional

Pipe Offset

May be used to override the pipe offset value and tie the pipe to an offset alignment. The following object types can be used as targets for specifying the width: alignments, polylines, feature lines, or survey figures. Optional

Runtime Logical Assignments

None.

Output Parameters

None.

Behavior

The subassembly builds a shape for a simple curb and gutter, with the attachment point at the flange of the gutter. A pipe is then placed behind the curb with bedding material. A terrace is then placed behind the pipe bedding material.

Layout Mode Operation

In layout mode, this subassembly displays the curb-and-gutter, pipe, and terrace components based on the input parameters given.

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, or Shape

Code

Description

P1 Flange, Top Flange point of the gutter
P2 Flowline_Gutter Gutter flowline point
P3 TopCurb Top-of-curb
P4 BackCurb Back-of-curb
P5 - P6 Curb_Base Top of base under curb
P7 SubBase, Datum Bottom of base under curb
P8 SubBaseExtension Top of base under pipe
P9 SubBase, Datum Bottom of base under pipe
P10 Top
P11 TopPipe Top of pipe
P12 CenterPipe Center of pipe
P13 BottomPipe Invert of pipe
P14 Top, TerraceWidth End of terrace
P15 SubbaseExtension Back of subbase
L1 Top, Curb, Flange Curb flange
L2 Top, Curb, CurbFace Curb face
L3 Top, Curb, CurbTop Top of curb
L4 - L5 Curb_Base Curb edges
L6 Curb_Back Back of curb
L7 SubBaseDepth, Datum Subbase top under curb
L8 SubBaseExtension Subbase top behind curb
L9 SubBase, Datum Subbase link under pipe
L10 Datum, Subbase Bottom of subbase
L11 Top, Terrace Terrace
L12 Pipe
L13 Top, TerraceWidth Terrace
L14 SubbaseExtension
L15 Datum
S1 Curb
S2 Subbase
S3 Backfill Material around pipe

Coding Diagram