Build Culverts in
Seconds, Not Hours.
Culvert Builder automates infrastructure design inside AutoCad & Civil 3D. Generate fully parametric 3D culvert models with intelligent precision — engineered for speed, accuracy, and scale.
A closer look at
Culvert Builder.
Real screenshots from the plugin in action — explore the interface, parametric models, and engineering output generated directly inside AutoCad & Civil 3D.
See Culvert Builder in Action
Watch how the plugin simplifies complex engineering workflows directly inside Civil 3D.
From download to deployment.
Five steps. One hour. Zero friction.
Download Trial
Get the installer and try Culvert Builder for free.
Use the Plugin
Open Civil 3D and start generating models instantly.
Purchase License
Choose the plan that fits your team and workflow.
Submit Machine ID
Send us your unique workstation identifier.
Receive License
Activated and delivered in under one hour.
Engineered to outperform.
A full toolkit of intelligent features purpose-built for infrastructure engineering teams.
10× Faster
Hours of modeling collapsed into seconds of intelligent automation.
3D Solids Compatibility
Deeply integrated — no exports, no conversions, no friction.
Parametric 3D
Every dimension editable, every model regenerable.
Smart Workflows
Detects alignments and corridor lines.
Multi-Culvert
Batch generate across entire corridors in one pass.
Manual Design
Design your culvert with your own parameters.
High Accuracy Modeling
Engineering-grade precision for reliable, consistent results.
Style Manager
Reusable visual styles for team-wide consistency.
Code-Compliant
Outputs aligned with industry engineering standards.
Lightweight
Optimized to keep your Civil 3D session snappy.
Export Ready
Drawings, schedules, and reports — instantly.
Built for every team.
Transparent pricing. No subscriptions. Just pure engineering value.
Basic
Solo engineers and small projects.
- Manual mode culvert creation
- Box and Pipe culverts (multi-cell / multi-pipe)
- 1 workstation license
- Email support
Advanced
Production teams that need automation.
- Everything in Basic
- Automatic mode (alignment + corridor elevation detection)
- 1 workstation license
- Priority support
- Free updates for 1 year
Enterprise
Large teams running culverts at corridor scale.
- Everything in Pro
- Multi Culvert Creation (Excel batch import)
- Custom integrations
- Dedicated engineer
Where engineering meets software.
Ridge Labs builds advanced tools for AutoCAD Civil 3D — engineered by practicing infrastructure professionals who understand the friction of real-world workflows.
Across 200+ delivered projects, our software has saved engineering teams thousands of hours — turning repetitive modeling work into intelligent automation.
With over a decade of experience in hydrology, hydroinformatics, and infrastructure design, Tarek specializes in developing advanced engineering solutions and software tools that automate complex workflows and enhance productivity.
Start your free trial today.
Install Culvert Builder in minutes and experience the future of infrastructure modeling inside Civil 3D.
Let’s build the future, together.
Whether you have a question, need a custom integration, or want to see a live demo — our team is one message away.
Got a brilliant idea, a feature you’d love to see, or spotted a pesky bug? Maybe just a thought or a friendly recommendation? We’re all ears — and genuinely excited to hear from you. Drop us a line through the contact form on this page, or reach out via any of the channels above. Whichever feels easiest, we’ll be happy to chat.