The Civil 3D Model Viewer offers a 3D environment to visualize and verify a model throughout the design process. Review complex objects such as corridors and subassemblies in a new way that provides better insight without detracting from regular workflows.

Whether you're planning, concepting, or analyzing, Autodesk AI supports your process at every stage of the AECO lifecycle.

Access helpful AI-generated support and solutions in Civil 3D with Autodesk Assistant. Ask questions related to Civil 3D features and troubleshoot your design challenges without leaving the workspace.*

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Enable early access to additional AI-powered capabilities under development. With contextual drawing information, Autodesk Assistant can help analyze objects, summarize properties, and navigate drawing elements to support design workflows.

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Generate smooth horizontal alignments from existing survey data for linear infrastructure including rail, roads, highways, and pipelines. Civil 3D calculates tangents, curves, and transition spirals that best fit the measured points, helping you recreate or refine geometry with minimal deviation from real-world data.

View individual or team insights based on Civil 3D usage. Insight content is designed to be informative and actionable—to help complete projects faster with helpful features, macros, and tips personalized for you and your teams.

Stay informed with access to essential design data with detailed multi-user event logs, tracking for over 35 activity types including version history with file comparison tools. This feature supports files managed on Forma Data Management, stored locally, or on third-party cloud storage.

Quickly identify and resolve missing external drawing references (xrefs). When working in Forma Data Management, Civil 3D automatically suggests updated file paths for renamed or moved references—helping to reduce manual fixes and keep projects moving with fewer interruptions.

Improve sheet set workflows with cloud collaboration. Civil 3D now connects to Forma Data Management to open, save, and manage sheet sets online, helping teams reduce manual updates by automatically sharing changes to project files.

Civil 3D lets CAD managers define one set of project-aware support files and settings for projects in Forma Data Management—giving teams the ability to view and edit DWG files with the intended support files without requiring additional steps to configure individual users or Civil 3D installations.

Included with standalone Civil 3D subscriptions, Forma Data Management Essentials provides a centralized, cloud-based environment to organize, view, and share project data. It supports 2D and 3D viewing and markups, search and filtering, folder-level permissions, basic issue tracking, and controlled information exchange.

Publish sheet sets as PDF deliverables directly from Civil 3D to Forma Data Management. Push finalized sheets to the cloud to keep deliverables organized, accessible, and connected to the latest project data.

Build, edit, and save large surfaces efficiently using TIN surface companion (.mms) and grid surface (.grs) files. Surface data is stored by Civil 3D externally alongside the drawing, improving performance when working with large surfaces and reducing updates when surface geometry has not changed.

Import point cloud data from laser scanners and reality capture technologies to model existing conditions, surfaces, and structures. Use point clouds in Civil 3D to reference contextual real-world site data, support accurate design, and inform project decisions.

Perform surface analysis including direction, elevation, slopes, slope arrows, contours, watersheds, and water drops path.

Refine and modify existing surface definitions with controlled editing operations that preserve your original source data. Add edits as operations within the surface definition, allowing you to manage, review, and reorder changes without altering existing surface data components.

Control how much surface geometry is displayed in Civil 3D. Set a high or reduced surface level of detail to improve performance when working with large surfaces while maintaining the detail needed for your current task.

Use surface masks to hide or visually isolate areas of a surface without modifying its underlying data. Apply masks to block out areas or render a section of the surface using a specified render material, helping you focus on relevant portions of a drawing.

Create surfaces in Civil 3D by combining points, breaklines, boundaries, and contours, and choose from supported surface types including TIN, Grid, Cropped, and Corridor surfaces. These surface modeling tools help you represent real-world geometry for design, analysis, and documentation workflows.

Use the Volumes Dashboard in Civil 3D to analyze volume surfaces and bounded areas. Calculate cut, fill, and net volumes, review results in the dashboard, generate volume reports, and insert volume data into drawings to track surface changes.

Use watershed analysis tools in Civil 3D to analyze how water flows along and off a surface. Watershed tools help you examine surface drainage behavior and identify contributing areas, giving insight into how water moves across terrain for planning and design workflows.

Automate grading evaluation for land development with optimization algorithms to establish surface smoothness that adheres to design criteria.

Determine connectivity and symbology of survey points from the field match the feature name and field code defined in Civil 3D.

Visualize geotechnical data directly within the Civil 3D environment to support subsurface analysis and design workflows.

Design finished ground surfaces with tools and commands that facilitate efficient design of grading groups, styles, and criteria sets.

Group and manage parcels, alignments, gradings, and feature lines that share a common topology in a named site collection.

Download, create, analyze, and adjust survey data while streamlining the transfer of field-capture data to and from the office.

Allow engineers to set up and create complex and multi-base corridors faster and with greater efficiency.

Design and modify complex corridor subassemblies using a visual interface without programming.

Efficiently use assemblies and subassemblies to establish the basic building blocks of a roadway or other alignment-based design.

Create dynamic and data-rich corridor models for highways and roads. Build rail track corridor models, incorporating designs for switches, turnouts, and cant calculations.

Create and edit corridor transition when you want to transition a parameter in a subassembly from one value to another. More controls have been added to allow easy movement of transitions and rearranging the order of transitions.

Extract corridor feature lines with ease to use as a basis for creating grading objects or other design projects. Extracting feature lines can be done all at once, selected one-by-one, or by selecting a subset within a corridor region or a polygon.

Create dynamic 3-way, 4-way, or roundabout intersections.

Model roundabouts according to defined standards. Build your roundabouts into existing corridor models, enabling your design to update automatically when you make changes to the corridor alignments.

Deploy both subassemblies and assemblies more efficiently by sharing a custom subassembly in a shared project location. Corridors consuming the subassembly can be easily updated to use the new version.

Define drainage areas with catchment objects by creating a boundary and flow path to model surface runoff.

Add and modify stormwater control channels as feature lines in your drainage system model with defined geometry and analysis data.

Design and analyze drainage systems directly in Civil 3D using cloud-based analysis powered by InfoDrainage.

Define and edit ponds in your drainage system model and connect them to gravity pipe networks for stormwater control.

Manage rainfall sets and events in a centralized Rainfall Manager to support consistent drainage system analysis.

Perform a variety of stormwater management tasks, including storm sewer design, watershed analysis, detention pond modeling, and culvert, channel, and inlet analysis.

Efficiently draw 2D and 3D models of utility systems, such as storm sewers, sanitary sewers, and more.

Generate 3D models of pressure networks, such as water transmission systems. More controls have been added  for layout and editing workflows including merging pressure networks, DREF sync improvements, and party symbol display.

Add and modify underground storage in your drainage system model to capture and temporarily store stormwater runoff.

Create plan-only, plan and profile, profile-only, and section sheets using automated plan production tools.

Extract and report material quantities and calculate volumes from surfaces, corridors, and sectional data.

Organize and manage drawing sheets using Sheet Set Manager to streamline documentation workflows.

Ground site plans with real-world data using basemaps. Access high-res satellite and aerial imagery, OpenStreetMaps, and monochrome styles.

Export Civil 3D design data for use in Autodesk 3ds Max to create professional-quality visualizations.

Bring ArcGIS datasets into Civil 3D using the Autodesk Connector for ArcGIS and publish or export design data back to ArcGIS.

Bring context modeling and conceptual design into your design process. Make better decisions with a real-world context of existing conditions, more efficiently consider alternatives, and complete detailed design and documentation in Civil 3D.

Import and export IFC 4.3 data to exchange Civil 3D infrastructure models with IFC-certified applications.

Use point cloud data from Autodesk ReCap Pro into Civil 3D for reality-capture workflows and surface modeling.

Use AutoRenumber to automatically renumber alignment tags and streamline labeling workflows in Civil 3D.

Customize the user interface to improve accessibility and reduce the number of steps for frequent tasks.

Use Dynamo, a visual programming environment, to automate repetitive design tasks and streamline workflows in Civil 3D.

Manage the staggering volume of design data in Civil 3D models in this tool. Easily review, validate, report, export and edit models. Enhancements have been made to the navigation capabilities and tools to make management and reporting of custom property data more efficient.

Automate tasks, create custom commands and workflows, interact with objects and data, and integrate with other design software.

Customize Civil 3D with Autodesk-approved extensions.

Design in-context and accelerate detail design with Civil 3D, ReCap Pro, InfraWorks, and Dynamo.

Connect Civil 3D road geometry to parametric bridge modeling tools in InfraWorks and custom Revit structures.

Create dynamic, flexible 3D models of road corridors. Simulate driving through the corridor and visually evaluate sight distance and influence analysis.

Use visual programming to generate reusable scripts that automate repetitive and complex tasks.

Enhanced drainage design tools and workflows with analysis capabilities powered by InfoDrainage analysis cloud services.

Create dynamic models of 3-way (T-shaped) or 4-way intersections. Model roundabouts according to standards that blend with existing or planned roads.

Use materials information to create reports for volumes along an alignment, comparing design and existing ground surfaces, and quantity takeoff.

Create plan production sheets that automatically display station ranges of alignments and profiles that are based on predefined areas along an alignment.

Automate assembly generation for your rehab corridor design model. Optimize mill and overlay to balance costs vs. performance.

Download, create, analyze, and adjust survey data. Streamline the transfer of field-captured data to the office.

Quickly layout site design in Civil 3D based on rich context information from InfraWorks and ReCap Pro.

Improve coordination between architects and civil engineers with shared coordinate systems.

Create dynamic and data-rich corridor models for designs such as residential roads, curbs, and sidewalks, swales within a subdivision, and parking lot design.

Use a visual programming application to generate scripts that automate repetitive and complex tasks. Save these scripts in a library and reuse them as needed.

Enhanced drainage design tools and workflows with analysis capabilities powered by InfoDrainage analysis cloud services.

Use materials and sectional or profile information to create reports for volumes along an alignment, comparing design and existing ground surfaces, and quantity takeoff.

Lay out horizontal and vertical 3D design of pressure networks. Model deflected-curve pipe segments and use design and depth checks to meet project standards.

Download, create, analyze, and adjust survey data. Streamline the transfer of field-captured data to and from the office.

Create comprehensive digital models of ground topography for studies such as land-use feasibility, transportation system planning, and water flow simulations.

Use swept path analysis to speed planning and evaluate safety standards compliance. Animate vehicle paths with 2D or 3D animations using multiple camera angles.