Corridor - Corridor Surface Manager

Last updated: 2026-02-24

Overview

This tool provides an interface to create and edit corridor surfaces for a selected corridor. Three options to create corridor surfaces are provided.

  1. Individual: Create a single corridor surface with user-defined name.
  2. Multiple from Default: Create multiple surfaces using provided default input .csv files.

  3. Multiple from File: Create multiple surfaces using custom input .csv file.

New and existing surfaces can be previewed and edited in a tree view. Functionality includes:

  • Quick selection of feature line and link codes
  • Option to rename and remove surfaces
  • Change surface style assignments

Input CSV File

To define the the surfaces to be created, (if different than default) a .csv must be created for the Civil 3D Project and corridor file. The default .csv contains information to create Top, Datum and Subgrade Improvement Corridor Surfaces. The feature line codes are standard point codes used in WisDOT subassemblies that participate in the definition of Top, Datum and Subgrade Improvement surfaces. The feature line codes and link codes can be modified for custom point codes or for design-only surfaces by editing the CSV. Surface names and styles are preset to default values.

The default .csv file is included with the WisDOT Civil 3D configuration and stored in

C:\WisDOT\Stnd\C3D2026\Appdata\ToolDefaults\CrdrSrfc\General.csv

It is also hosted here: CreateCrdrSurfaces.csv

Tip: The recommended best practice is to create a copy of the .csv and save it in Civil 3D ..\Design\Corridors near the Corridor drawing for future custom use.

  • Column A

    • Create?: x = yes or Blank = no

  • Column B

    • Name: Enter the Name of the Surface (Default = Crdr-*-Top, Crdr-*-Datum)

  • Column C

    • Style: Enter the name of the Style for each surface (Default = Top Border, Datum Border)

  • Column D

    • Feature Line Codes: Enter the names of the Feature Lines/Point Codes that should define the surface. Wildcards can be used with *. (Semicolon “;” delimited) (Example: BackCurb;Berm_In;Berm_Out;Break_Point;CG_Terrace*;Clear_Zone*)

  • Column E

    • Link Codes: While not standard for WisDOT Design Surfaces, enter the names of the link codes that should define the surface. (Semicolon “;” delimited)

Usage

The tool can be accessed from:

  • WisDOT Design tab > Design panel > Corridor menu > Corridor Surfaces Manager

  • The tool can also be accessed from the command line: DOTCORRIDORSURFACESMANAGER.

  • Corridor right-click menu

To add an individual corridor surface:

  1. Type the desired surface name in the field next to "Individual". The field includes a suggested naming convention.
  2. Click the Add button. This adds the surface to the tree view below where it can be edited further. The name of the new surface will appear in italics while pending creation. The surface is not added to the drawing database until the OK or Apply button is clicked.

To add multiple corridor surfaces:

  1. If one of the provided default .csv files is appropriate, use the "Multiple from Default" option. Click the View Default button to review the .csv file.
  2. If one of the provided default .csv files is close but needs some modifications:
    1. Click the View Default button to open the .csv file in Excel. Save the file to the project and make the necessary edits. (..\dsgn\crdr\CreateCrdrSurfaces.csv) Go to step 3.
  3. Use the Multiple from File option and browse to the customized .csv file.
  4. Click the Add button. This adds the surfaces to the tree view below where they can be edited further. The name of the new surfaces will appear in italics while pending creation. The surfaces are not added to the drawing database until the OK or Apply button is clicked.

  5. Custom csv files can be included in the default drop-down menu by placing them in C:\WisDOT\Stnd\users\Myc3d20XX\MyToolDefaults\CrdrSrfc\

To edit the corridor surfaces:

  1. Each surface listed in the tree view shows all of the feature line and link codes available from the corridor. Check the boxes to select with feature lines and link code should be part of the surface definition.
  2. Each surface includes a menu of available surface styles that can be assigned.
  3. To delete the surface, click the ellipsis and choose "Remove Surface".
  4. To rename the surface, click the ellipsis and choose "Rename Surface".
  5. Check the Rebuild Corridor box to rebuild the corridor when applying changes.

  6. Click the Apply button to apply the changes and keep the window open. Click the OK button to apply the changes and close the window.

Warning: Known Issue: Surfaces generated from a Data Referenced Corridor will not appear until the Corridor Properties dialog is opened and closed with the OK button.