Overview
The drtwrk Civil 3D plugin extends Autodesk Civil 3D with automated grading tools and connects directly to the drtwrk cloud grading engine. Install the plugin once and a dedicated DRTWRK Tools ribbon tab appears in Civil 3D — no manual command loading required.
What it does
- Adds commands to Civil 3D:
2DLINEWORK,3DLINEWORK, andLOTZONEGRADING - Serializes your lot linework into the drtwrk format
- Authenticates with the drtwrk API and uploads your linework for grading
- Retrieves completed graded surfaces and imports them back into your drawing
- Installs the drtwrk Toolbar Windows tray app for sign-in, support, updates, and crash reporting
Configuration and review workflows open in a web-based modal (powered by WebView2) embedded inside Civil 3D — a modern, interactive UI without leaving your drawing environment.
The drtwrk Toolbar app runs in the Windows notification area after installation. Use it to sign in, open support tools, check for updates, report a problem, reopen the last prepared crash report, and open drtwrk log or crash folders.
Supported versions
| Civil 3D Version | Supported |
|---|---|
| 2027 | ✓ |
| 2026 | ✓ |
| 2025 | ✓ |
| 2024 | ✓ |
| 2023 | ✓ |
| 2022 and earlier | Not supported |
System requirements
- OS: Windows 10 or Windows 11 (64-bit)
- RAM: 8 GB minimum, 16 GB recommended
- Internet: Active connection required for job submission
Main workflows
- 2D linework validation — collect, clean, and validate 2D linework from configured CAD layers before any grading work begins
- 3D feature line creation — promote validated 2D linework to permanent 3D feature lines with correct elevations derived from projection surfaces
- Lot and zone grading — configure grading parameters in the grading modal and submit the job to the drtwrk cloud grading engine
Get started
Installation
Install the plugin and sign in to your drtwrk account.
2D Checks
Validate and prepare 2D linework for grading.
3D Checks
Create permanent 3D feature lines with elevations.
Lot & Zones Grading
Assign presets and submit lots and zones for grading.
Commands
Full reference for all Civil 3D commands and ribbon panels.