---

Culverts

Updated May 18, 2016

Culverts

Culverts are created and edited with the Culvert Editor Panel. If you create a Location design from a P-Line traverse, culverts are automatically inserted at all creek locations in the traverse on File-New.

Culvert Properties

The following characteristics of the culvert can be defined:

• Description
• Type (Stream Crossing or Cross Drain)
• Diameter for pipe culverts (in mm for metric projects or inches for imperial projects)
• Height and Width for box culverts in project units
• Rise and Span for pipe arches and open bottom arches in project units
• Length in project units
• Vertical position (defined with respect to ground or road surface)
• Skew Angle
• Gradient %

The Culvert Editor Panel allows you to add, edit or remove culverts.

Culvert Station

Culvert location is defined by L-Station.

Note that the L-Line station of a culvert will change when horizontal alignment is modified; the physical location of the culvert will not change unless the alignment is modified near the culvert. If the horizontal alignment is changed near the culvert, the physical location must change and (if a P-Line is defined) the P-Line station of the culvert will also change by a small amount.

Culvert Types

There are 2 types of culverts, Stream Crossings and Cross Drains. The Natural channel (stream) check box in the in the Culvert Add dialogue and Culvert Properties dialogue allows you to choose which type for a new or existing culvert.

• Creek Crossings - Refer to culverts that contain water from an existing natural flow. Creek Crossing culverts are automatically created at all creek locations in the traverse (see Survey/Map Online help for more information on Creeks).

• Cross Drains - Refer to culverts that drain water from ditches, usually placed at regular intervals along a road.

These two categories are for organizational purposes; as Creek Crossing and Cross Drain culverts will have different properties (e.g. culvert diameter and vertical placement), there is a separate default setting for each type.

In this section: