Autodesk Civil 3D 2025.1 Update

The Autodesk Civil 3D 2025.1 Update is available via Autodesk Access or via download from the Autodesk subscription site.

The official release date of the release is Aug 18, 2024.

The Update install requires that Civil 3D 2025.0 is installed.

There are recent AutoCAD 2025.1.0 and AutoCAD Map 3D 2025.0.1 updates available that should be installed prior to this update.

There are recent and available Autodesk Identity Manager Service, Autodesk Licensing Service, and Autodesk CER Service updates that should be installed prior to this update.

A complementary Autodesk Civil 3D 2025.1 Object Enabler was also released.

Autodesk Civil 3D 2025.1 Update

Autodesk Civil 3D 2025.1 Update provides enhancements to overall performance and productivity that benefit users of all project types. More than 1100 new nodes have been added to Dynamo for Civil 3D, helping users of all skill levels automate workflows and make design decisions more quickly.

Performance enhancements for Corridors and Surfaces speed up data processing to reduce wait time between tasks. Road and Rail designers will benefit from enhancements to Profile View Bands and the Cant Tabular Editor..

Read the Release Notes in the Civil 3D 2025 help

Civil 3D 2025.1 Enhancements

Corridor Workflows

Improved the workflow for adding multiple Baselines while editing Corridors:

• The Create/Edit Corridor Baseline dialog box is now the Add Baselines dialog box and includes the multiple Baseline selection tools available at Corridor creation.
• Enhanced the functionality of the Pick from Drawing button in each baseline row.
  The Alignment picker can select multiple alignments at once, and similarly, the Feature Line picker can select multiple Feature Lines in a single selection process.
• Select two types of Baselines, including Alignments/Profiles and Feature Lines, during the Corridor editing process.
• Expanded selection options for Feature Lines used as Baselines: filter Feature Lines by Name, Style, Layer, and Site to narrow down the selection scope.
• After multiple selection, you no longer need to press Shift or Ctrl to do multiple modifications.
• Added warning prompts when there are no Feature Lines that meet the preset filter.

Improved performance when working with Corridors includes the following optimizations:

• Cursor movement over large Corridors with object snap enabled.
• Grip editing large corridors.
• Corridor Feature Line drawing/redrawing.

Surface Workflows

Surface Edit command optimization

• Appropriate style display component is activated when using surface editing commands. For example, when swapping surface triangle edges will automatically display triangles in the surface style.

Sorting the Volumes Dashboard enhancements

• Added the ability to sort alphabetically.
• Added the ability to keep the last sorted column order if a drawing is saved and reopened.
• Added the ability to export a Cut/Fill Report using the column order as sorted in Civil 3D.

Survey Database

Workflows have been enhanced to better support collaboration among teams with Survey Databases in Autodesk Construction Cloud (ACC).
Synchronization with the Desktop Connector increases stability and reliability.
New enhancements include:

• Locked Survey Database notifications
• Versioning support to prevent generating unnecessary new versions of Survey Databases.
• Creation and modification of Survey Databases and data.
  • Update a Survey Database on ACC from a drawing in Civil 3D.
  • Update a drawing from a Survey Database on ACC.
• Importing Survey Databases.
• Creation and modification of the Survey User Setting Default Directories (provided they are mapped to the local ACC directory).
  • Extended properties
  • Equipment databases
  • Linework code sets
  • Figure prefix databases
  • Report styles

Profile Views

Added new Horizontal Geometry Band options to display and label secondary Alignment information.

• Added an Alignment2 property to display information for a secondary Alignment.
  Note: Alignment2 may also be selected when creating new profile views.
• Added a Max Offset Distance property as a range to limit secondary alignment displayed in the band

Added the ability to label Projected Stations of the primary Alignment in the band.

• Tangent, Curve, and Spiral text contents
  • Primary Alignment Mapped Station - Start
  • Primary Alignment Mapped Station - End
• Point of Intersection text contents
  • Primary Alignment Mapped Station at PI Extended Station
  • Primary Alignment Mapped Station at Extended Raw Station

Added the ability to specify the Secondary Alignment name as the band title.
Two options are available in the Text Component Editor:

• Parent Alignment
• Horizontal Alignment - Alignment2 Name

Project Explorer

JSON File Support

• Added the ability to support exporting of reports to a JSON (*.json file).
• Added the ability to have Object Set Actions to trigger a report to JSON FIle (*.json

Sample Line Group Filtering

• Added the ability to filter and include Sample Line Group stations for display and export to tables and reports.
• Added the ability to filter and include Sample Line Group stations for display in the Calculated Stations tab for alignments.
• Updated the Apply Alignment/Profile Filter dialog box for Calculated stations. You can now filter Sample Line Groups when exporting to reports and when creating or editing an object set items.
• Added Sample Line Group and Sample Line for column layouts of the Alignment/Profile Calculated Stations. These are enabled in the About Layout Options Alignment Tab and are deselected by default.

Rail Workflows

Added new Cant parameters for horizontal Alignment in the Cant Tabular Editor for cant calculations. This provides an overview of necessary parameters in rail design related to such calculations:

• Curve Radius
• Equilibrium Cant Gradient
• Equilibrium Cant Vertical Speed
• Cant Deficiency Gradient
• Design Speed
• Cant Deficiency Vertical Speed

Modified the Side parameter for Turnouts to help improve rail design documentation.

• In the Create Turnout dialog box, the Side parameter has been changed to Alignment Side for clarity.
• A Turnout Side property is available in the Object Properties palette and Text Component Editor of the turnout Label Style Composer.

Added support for creating Spirals in Turnout diverted Alignments.
Optimization includes:

• Simple spiral by length/radius.
• Simple spiral by pass through point.
• Compound spirals.

Dynamo for Civil 3D

Dynamo for Civil 3D 2025.1 is a significant upgrade of the Dynamo for Civil 3D capabilities.

New Nodes

• Dynamo for Civil 3D 2025.1 includes a significant expansion of the node library, with over 1,100 new nodes in the AutoCAD and Civil 3D categories. These new nodes unlock considerable new opportunities for workflow automation across all domains.

New sample graphs

• This release also includes new sample graphs to jumpstart your Dynamo learning and give you inspiration for your next project. Review the full list of available sample graphs.

Updated Dynamo Core

• Dynamo Core has been updated to version 3.2.2, bringing you a refreshed homepage, workspace templates, new paneling nodes, and more. Read more about the major updates in the Dynamo 3.2.1 blog post.

Improved library organization

• The AutoCAD and Civil 3D categories in the node library have been reorganized to make it easier to find nodes. You’ll notice that a few nodes have been renamed to better fit with the new library layout.

Updated node and port descriptions

• Node descriptions have been improved to provide more clarity, and all node input and output ports now include a description of their purpose and default behavior.

Node default values

• Nodes that create new objects in Civil 3D now include default values for ‘layerName’, ‘block’, and ‘document’ input ports, which helps save time when building new graphs.
  The default values are as follows:
  • ‘layerName’ defaults to the current layer
  • ‘block’ defaults to model space
  • ‘document’ defaults to the current document

Support for property data types

• In the past, the Object.UpdateProperty and Property.SetValue nodes were limited to string values. In 2025.1, both of these nodes now accept string, integer, double, and Boolean data types, which includes the ability to set the values for auto-increment and list properties.

Object and layer color control

• In prior versions of Dynamo for Civil 3D, setting or retrieving the color of a layer or object was limited to “true color” RGB values. The 2025.1 update gives you more control over colors by accepting integer values for AutoCAD Color Index (ACI). In addition, the colors of objects can be set to ‘ByLayer’ or ‘ByBlock’.

Other minor improvements

• The Corridor.BaselineByName and Corridor.Baselines nodes now support feature line-based baselines.
• The Block.AttributeDefaultValueByTag, Block.SetAttributeDefaultValueByTag, BlockReference.AttributeByTag, and BlockReference.SetAttributeByTag nodes now perform a case-insensitive check on the tag name.
• The previous Layer.Create node has been renamed Layer.ByName and also includes many new input ports to provide additional control over layer properties such as plot style, transparency, description, and more.
• When setting the line weight of a layer or object, you can input any number and Dynamo will automatically assign the line weight that is closest to the given value.

Catchment Properties

• Updated the Catchment Properties dialog box to a web based user interface.
• Added the SCS (Soil Conservation Service) runoff method to the Catchment Properties dialog box.

Civil 3D 2025.1 Update Fixed Issues

Alignments

• Fixed an issue in which the alignment geometry changes after importing LandXML data.
• Fixed an issue in which the start station began from -0 if the alignment is created from a polyline curve.

Assembly/Subassembly

• Fixed an issue in which localized code set styles from country kits would change to English.
• Fixed an issue in which the DaylightMultiIntercept subassembly did not work correctly with its intercept number setting.
• Fixed a stability issue that could occur when adding a shape to a subassembly when it already had a shape added.
• Fixed an issue in which no units were displayed when importing a .pkt file with the toolspace panel.

Autodesk Collaboration for Civil 3D

• Improved stability when opening a drawing from a large Autodesk Construction Cloud project.

Corridors

• Fixed an issue in which you could not extract solids from a LinkMulti subassembly.
• Fixed an issue in which a redundant subassembly was shown in the section view.
• Fixed an issue in which slope patterns could be lost when setting the frequency to be too small for the corridor.
• Fixed an issue in which corridor sections created on an xref corridor could be lost after using ExportC3DDrawing or background plotting.
• Improved performance when extracting points from the corridor.
• Improved stability when rebuilding a corridor containing invalid feature lines with no geometry.

Data Shortcuts

• Improved performance when switching between different drawings that include data shortcut references in Civil 3D.
  The DATASHORTCUTSSOURCECHECK command now defaults to OFF.
  Enabling this command will increase load times.

Dynamo

• Fixed an issue where the Block.Extents node would return null in certain cases.
• Fixed an issue where the Block.BlockReferences node would not return dynamic block references.
• Fixed an issue where the BlockReference.ByCoordinateSystem node would sometimes fail because of non-uniform scaling, even though the source block definition allowed for this scenario.
• Fixed an issue where the BlockReference.Block node would return an anonymous block for dynamic block references instead of the source block definition.
• Fixed an issue where creating a mesh using either the Mesh.ByGeometry or Object.ByGeometry nodes would fail for large meshes with greater than 32,767 vertices.
• Fixed an issue where the Objects Types node (now named Choose Object Type) did not include an option for “CogoPoint”.

ESRI GIS Data Integration

• Fixed an issue in which logging into the ArcGIS enterprise portal failed with Windows authentication.

Grading

• Fixed a stability issue that could occur when using the Automation Surface Creation option to create a surface from a grading group.

Gravity Pipes

• Fixed an issue in which a pipe profile label anchor point was not correct when the profile view direction was from right to left.
• Fixed an issue in which the pipe manning coefficient could not update.
• Fixed an issue in which the pipe manning coefficient was zero after changing structure location.
• Fixed an issue in which the rectangular structure masking did not work efficiently in a corridor section editor.
• Fixed an issue in which some structures would not generate after swapping.
• Fixed an issue in which a structure boundary did not update after changing the annotation scale.
• Fixed an issue in which the sump depth unit was not shown in structure properties.

Miscellaneous

• Fixed a stability issue that could occur when opening a drawing created from Advance Steel.
• Fixed an issue in which a drawing could not be opened if it contained a survey figure that had lost its geometry. A known issue following this fix is that the survey figure may transform into proxy entities.
• Fixed an issue in which objects could be highlighted regardless of the LWDISPLAY being ON or OFF in the GSF mode.
• Fixed an exception issue "System.Data.SqlClient is not supported on this platform" when attempting to use the System.Data.SqlClient
• Fixed an issue in which the progress bar title was not available in the Data Source Manager.

Pressure Pipes

• Fixed a stability issue that could occur when setting the pressure pipe 3D compass to a small value.
• Fixed an issue in which pressure parts locations would not be correct after reversing a pipe run alignment.
• Fixed an issue in which some pressure solid hatches were empty in a profile view.

Profiles

• Improved the usability of identification Profiles from File types by introducing specific icons for each type.

Profile Views

• Fixed an issue in which the start and end station values of the tangent label of a horizontal band secondary alignment displayed incorrectly.

Project Explorer

• Fixed an issue in which structures would not update when changing the reference surface in Project Explorer.
• Fixed an issue in which selected station values in the Corridor Section View would be lost after a corridor rebuild or other corridor modification.
• Fixed an display issue tht could occur to circular profile entities when the start or end grade is zero.
• Fixed an issue in which edited dynamic blocks could disappear from Project Explorer due to a lack of support for anonymous blocks.
• Fixed an issue in which modified pipe elevations did not update the depths of any connected structures when the pipe run editor was used in Project Explorer.
• Improved usability for Export to 2D DWG by adding support for upright text rotation in exported complex linetypes.

Reference Templates

• Fixed an issue in which the override status of label components from a referenced template was not correct when reopening the drawing.

Runoff Methods

• Fixed an issue in which you could not synchronize source catchment style changes.
• Fixed a stability issue that occurred when attempting to use the Pick Structure from Drawing option for a catchment after previously picking a pipe network structure reference with the Catchment Properties dialog box.

Section/Profile View Projection

• Improved stability when adding volume tables to a section view.

Surfaces

• Fixed an issue in which the Swap Edge command to swap a TIN edge (EDITSURFACESWAPEDGE) would not create a window to select a TIN Edge.
• Fixed an issue in which the Color column on a Surface Legend Table would not sort correctly with specific fonts.
• Fixed an issue in which inconsistent elevation gap range colors could occur between grid and tin volume surfaces.
• Fixed an issue in which colors were lost when sorting a surface legend table with True Colors.
• Fixed an issue in which surface contour color changed when zooming in and out in the Conceptual visual style with LOD mode.
• Fixed an issue in which the first point did not intactly highlight in wireframe(fast) mode when operating multiple surface points.
• Fixed an issue in which surfaces could not be created from GIS Data when using crossing selection.