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1. Husson Tool - Crossing Pipe Label

Author: Husson

Rank:  1st most downloaded Civil 3D App

Link download: https://apps.autodesk.com/CIV3D/en/Detail/Index?id=6264917338538266044&appLang=en&os=Win64

Platform: Civil 3D 64 bit 2019 to 2024

Price:  Free

Feature brief description: The application works by determining the intersection of the two pipe centerlines in 2D (x,y coordinates).

The distance is then calculated from the upstream invert to determine the invert and obvert (crown) elevations of the respective pipes.

A leader with text is then added to the drawing showing the obvert (crown) of the pipe at a lower elevation and the invert of the pipe at the higher elevation.

The text is generated using the pipe style name. 

The tool is useful for creating text labels for crossing pipes where necessary and saves a lot of time with manual calculations.

Pros: Free and easy to use

Cons: Haven't updated to support Civil 3D 2025

2. TL Polyline to Profile

Author: Todor Latev

Rank:  2nd most downloaded Civil 3D App

Link download: https://apps.autodesk.com/CIV3D/en/Detail/Index?id=7812288025728927700&appLang=en&os=Win64

Platform: Civil 3D 64 bit 2019 to 2024

Price:  Free

Feature brief description: Helps automate the conversion of a regular 2D polyline to an Autodesk® Civil 3D® profile and apply it to an existing Civil 3D alignment.

Pros: Free and easy to use

Cons: Haven't updated to support Civil 3D 2025

3. Style Component Find and Replace

Author: CAD Masters, Inc.

Rank:  3rd most downloaded Civil 3D App

Link download: https://apps.autodesk.com/CIV3D/en/Detail/Index?id=8629213286347851577&appLang=en&os=Win64

Platform: Civil 3D 64-bit 2012 to 2025

Price:  Free

Feature brief description: Style Component Find and Replace is an Autodesk® Civil 3D® add-in application that allows a user to search Civil 3D styles and settings for an Autodesk® AutoCAD® property. If desired, the user can replace usages with a different property. This application is useful for a CAD Manager who is responsible for creating and maintaining Civil 3D templates.

Pros: Free and easy to use.  Support many version of Civil 3D since 2012 version

Cons: N/A

4. TL Cogo Points Renumber

Author: Todor Latev

Rank:  4th most downloaded Civil 3D App

Link download: https://apps.autodesk.com/CIV3D/en/Detail/Index?id=5377221101351383249&appLang=en&os=Win64

Platform: Civil 3D 64-bit 2019 to 2024

Price:  Free

Feature brief description: Remove often during the design process cogo points are added, then some get deleted, others get added again and then some more get deleted again. This results in fragmented point numbers in the cogo point tables.

Renumbering hundreds or even thousands of cogo points becomes a tedious task that often involves manually exporting the points, editing the file in Excel, and reimporting the new list back into Autodesk® AutoCAD® Civil 3D®. This app addresses this issue by providing a native command to renumber COGO points inside Civil 3D. 

Pros: Free and easy to use.

Cons: Haven't updated to support Civil 3D 2025

5. Surface Style Toggle

Author: Red Transit Consultants, LLC

Rank:  5th most downloaded Civil 3D App

Link download: https://apps.autodesk.com/CIV3D/en/Detail/Index?id=3209757180712667242&appLang=en&os=Win32_64

Platform: Civil 3D 2012 to 2024 for Windows 32 and 64 bit.

Price:  Free

Feature brief description: This app allows for quickly toggling surface plan/model view display components by selecting the surface display component via the command line, and then select surface. The app simply toggles the selected surface style's plan view display components.

Pros: Free. Easy to use.  Support many version of Civil 3D since 2012 version

Cons: Haven't updated to support Civil 3D 2025

6. Husson Tool - Set Pipe Network Alignment

Author: Husson

Rank:  6th most downloaded Civil 3D App

Link download: https://apps.autodesk.com/CIV3D/en/Detail/Index?id=1199108935663926742&appLang=en&os=Win64

Platform: Civil 3D 64 bit 2019 to 2024

Price:  Free

Feature brief description: Application is useful for applying changing the reference alignment of a large number of pipes and structures at the same time.

Saves time if the reference alignment is not set when the pipe network is created or not switched as the pipe network is drawn.

The application has the option of picking the alignment or parts in model space or selecting from a dialog box.

Pros: Free and easy to use

Cons: Haven't updated to support Civil 3D 2025

7. Husson Tool - Set Pipe Network Surface

Author: Husson

Rank:  7th most downloaded Civil 3D App

Link download: https://apps.autodesk.com/CIV3D/en/Detail/Index?id=4065879711964874868&appLang=en&os=Win64

Platform: Civil 3D 64 bit 2019 to 2024

Price:  Free

Feature brief description: Application is useful for applying changing the reference surface of a large number of pipes and structures at the same time.

Saves time if the reference surface is not set when the pipe network is created or not switched as the pipe network is drawn.

The application has the option of picking the surface or parts in model space or selecting from a dialog box. 

Pros: Free and easy to use

Cons: Haven't updated to support Civil 3D 2025

8. Husson Tool - Multiple Part Style Changer

Author: Husson

Rank:  8th most downloaded Civil 3D App

Link download: https://apps.autodesk.com/CIV3D/en/Detail/Index?id=2131667686687159457&appLang=en&os=Win64

Platform: Civil 3D 64 bit 2019 to 2024

Price:  Free

Feature brief description: Application is useful for changing multiple pipe network parts to a different style quickly. Upon application start the option will be presented to do either the entire network or just selected parts.

Once the parts have been selected, a dialog box will appear with a drop down list of all the available pipe/structure styles that can be applied to the parts. Hitting OK will apply the selected style in the list to parts specified.

Pros: Free and easy to use

Cons: Haven't updated to support Civil 3D 2025

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