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InfraGrid 3D is a browser-native civil and municipal pipeline BIM tool, aimed at the design of underground pipelines such as roads, stormwater and sewage, water supply, power, and public lighting. Without installing desktop software such as Civil 3D, users can lay out routes, model roads and wet and dry pipelines in the web page, view real-time longitudinal sections and perform clash detection on demand, and finally export native Revit geometry, IFC, and DXF. The product provides a Revit plug-in and a Mapbox site environment, and supports importing IFC (2x3, 4, 4.3), DXF, LAS/LAZ, PDF base maps, and GPR survey lines. It is officially stated to cover LOD 400+ pipe wall thickness, foundations, trenches, and manhole details, and can export gravity pipe networks as EPA SWMM nodes and conduits. Demo and unpaid accounts cannot export; Pro licenses can export native Revit geometry, IFC, DXF, PDF drawings, and CSV quantities.

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About this tool

Purpose

InfraGrid 3D is a civil and municipal pipeline BIM tool that runs in the browser, positioned as a design environment for roads, wet and dry pipelines, and underground services. Target users include civil engineers, BIM managers, and pipeline designers. It is officially stated to be used to lay out roads, stormwater and sewage drainage, water supply, power, and public lighting in a web browser tab, view longitudinal sections in real time, perform clash detection on demand, and export native Revit, IFC, and DXF. The product emphasizes that design can begin without installing desktop software, without a license server, and without a Civil 3D seat.

Main capabilities

  • Browser-native BIM: no desktop installation, design by opening a link; large IFC and CAD models are streamed without loading the entire file at once.
  • Road design: supports curbs, pavement structural layers, road crowns, UK-standard lines and signs, intersections, parking bays, and widening; the corridor updates automatically after editing the horizontal alignment.
  • Wet and dry pipelines: wet pipelines include stormwater drainage, sewage drainage, and water supply; dry pipelines include power and public lighting; supports underground services modeling, drainage design, and public lighting.
  • Longitudinal sections and clash detection: real-time longitudinal sections and on-demand clash detection (hard clashes and soft clashes) act on pipes and manholes; clash detection is off by default and is enabled by the engineer.
  • Export: native Revit geometry, IFC, DXF; Pro licenses additionally allow export of PDF drawings and CSV quantities.
  • Revit plug-in: can push native DirectShape geometry to project coordinates, including roads, curbs, pipelines, manholes, and lighting, without manually importing IFC on every iteration.
  • Site environment: built-in Mapbox site environment.
  • Underground services details: officially stated to reach LOD 400+, with pipes having real wall thickness, foundations, and bedding, and manholes having wall construction, cover slabs, and positioned penetrations; stormwater and sewage, water supply, pipelines, and MV/LV are in the same scene and the same coordinate system.
  • Gravity pipe network rules: gravity pipelines are laid in straight lines between manholes, with manholes at direction changes; default slopes follow common practice (stormwater 1:100, sewage 1:80), and diameter, material, or slope can be overridden per pipe segment. Cover depth, infiltration requirements, and connection angles are checked during drawing.
  • Longitudinal sections and manhole details: each pipeline has a real-time longitudinal section; drag vertical intersection points, and slopes, invert levels, and cover levels update across the entire drawing set; manhole levels automatically detect penetrations on all four walls, or for circularShaped manhole generates a developed view.
  • Hydraulic analysis integration: The official documentation explicitly states that it does not replace hydraulic analysis software, but instead exports the pipe network as EPA SWMM nodes and conduits for use by hydraulic models.
  • Road quantities: Because the structural layers are real solids, material quantities come from the model rather than spreadsheet estimates; road crown is entered as a ratio familiar to engineers, elevations are stored as true AOD, and superelevation transitions are automatically generated on outside horizontal curves.
  • Markings and drawings: Road markings (centerlines, arrows, hatching, zigzag lines, stop lines, and free SVG shapes) are parametric and generate their own quantities; cross sections and longitudinal sections can be cut from the live model at any station, and DXF layer mapping is available for drawing production.
  • Public lighting: Light poles are positioned relative to the road alignment by station and offset; pole height, arm type, bracket, luminaire, and power are parameters, and four style presets cover common municipal specifications; electrical connections are laid with real conduits between poles and feed points, following the same trenching rules as other underground utilities, thereby yielding conduit lengths, pull box locations, and excavation quantities; MV/LV corridors, ducts, and lighting circuits can be modeled together, and clash detection runs across all objects. Pole schedules, luminaire types, and power summaries come from the model.

How to Use

Official documentation: open in a browser https://infragrid3d.app/demo , select Start at Origin when creating a project, then draw a road from the ribbon, and add drainage, utilities, or public lighting in the same model. Projects are saved in hosted cloud storage in the browser and can be shared by link for review; clients and colleagues see the same live model during a call and can move corridors, read sections, or review clashes in the meeting. After installing the InfraGrid add-on, native DirectShape geometry can be pushed to project coordinates. Suggested trial path: open the page, select Start at Origin, draw a road.

Import and Export

  • Import: IFC (2x3, 4, 4.3), DXF, LAS/LAZ, PDF underlays, and GPR survey lines; GPR crown lines can be converted to 3D pipes in one step.
  • Export: Pro licenses can export native Revit geometry, IFC, DXF, PDF drawings, and CSV quantities. Demo and unpaid accounts cannot export.

Use Cases

  • Data center, pharmaceutical, and campus projects: when architecture, structure, and MEP are already coordinated in Revit, and the civil package is expected to enter the federated model as native geometry rather than dead meshes.
  • Municipal and civil design teams that need to quickly lay out roads and pipelines in the browser and view longitudinal sections and clashes on the spot.
  • Design workflows that need to send pipe network layouts directly into EPA SWMM hydraulic models.
  • Situations that require roads, drainage, and lighting to share the same scene and coordinate system for cross-discipline clash detection.

Limitations

  • Explicitly stated officially: it does not replace every module of Civil 3D, and does not run EPA SWMM, catchment design, or cable duct bank modeling.
  • It does not perform illuminance calculations; lighting calculations must be completed in dedicated photometric software, and the pole positions and luminaire data produced here can be used directly by it.
  • Demo and unpaid accounts cannot export.
  • No installation is required except for the Revit plugin; the Revit plugin is the only optional installation item.
  • Hardware requirements are a modern browser, the 3D engine runs on the client, suitable for laptops and tablets, and supports touch input.
  • Regarding pricing, specific subscription costs, feature differences between versions, and storage add-on prices, the materials do not provide information.

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