Revit Structure

Revit for Bridges: What Revit Models Well and When You Need InfraWorks or Civil 3D

Revit for bridges: bridge categories since Revit 2021, pier families since 2022, bridges from InfraWorks, Civil 3D via IFC 4.3, and when not to use Revit.

  • TS. Nguyễn Mạnh Tuấn
  • 9 min read
Revit 2027's Visibility/Graphics dialog filtered to Infrastructure: abutment, bearing, cable, deck, framing, expansion joint and pier categories Photo: Screenshot of Revit 2027

Revit was born for buildings: storeys, levels and orthogonal grids. Bridges are different: they sit on an alignment curved in plan, follow a vertical profile, and every pier has its own elevation. So the question of using Revit for bridges has no yes-or-no answer. The real question is which parts of a bridge Revit should model and which parts belong to other software.

This article covers what Revit 2027 offers for bridges, how to bring a bridge model in from InfraWorks, how to connect with Civil 3D, and when not to choose Revit. Why infrastructure differs from buildings in general is explained in infrastructure BIM versus building BIM; to learn structural modelling and reinforcement properly, see the Revit Structure course.

Revit for bridges: the parts Revit does well

Revit does well with elements of defined, repeated shape that need detailed reinforcement: abutments, piers, pier caps, pile caps, precast bridge girders and deck slabs over a straight span. These are also the parts of a bridge set that need rebar drawings, rebar schedules and concrete quantities, exactly Revit Structure's strengths.

Revit does not do well with anything tied to the alignment: centre line, vertical profile, superelevation, pavement, slopes and earthwork. That belongs to Civil 3D, see what is Civil 3D. For cable-stayed, suspension or cantilever-cast box-girder bridges, analysis and detailed design are usually done in specialist bridge software. Revit, or Tekla as in what is Tekla Structures, then handles only the detailed model and drawings.

Bridge categories built into Revit

From the 2021 release, Revit added 26 model categories and 20 annotation categories for bridges, plus an Infrastructure filter in the category dialogs (Autodesk: What's New in Revit 2021). In Revit 2027, open Visibility/Graphics for a view and set the Filter list to Infrastructure to see them.

1 the Filter list set to Infrastructure. 2 the Abutments, Bearings, Bridge Cables, Bridge Decks and Bridge Framing categories. 3 Expansion Joints. 4 Piers Photo: Screenshot of Revit 2027

Having dedicated categories matters: an abutment carries the Abutments category, a pier carries Piers, a bearing carries Bearings. You can then schedule each bridge element type separately, filter and colour by type, and export to IFC with elements in the right group instead of everything being a Generic Model.

In 2021 these categories were available only for annotation families. From 2022, Revit lets you create model families in infrastructure categories such as Roads, Abutments, Bearings, Piers, Bridge Framing, Bridge Cables, Bridge Decks, Vibration Management, Expansion Joints and Structural Tendons. You either model them in place, or start from the Generic Model template and change the category (Autodesk: What's New in Revit 2022). Building parametric families is covered in how to create a family in Revit and pile cap families, which are close to pier foundations.

Modelling a bridge abutment, piers and bridge girders in Revit

A sensible order for a simply supported girder bridge:

  1. Draw grids through the pier and abutment centre lines, and levels at the top of each pier cap. Because the bridge slopes, each pier usually has its own level; name levels after piers to avoid confusion.
  2. Model abutments and piers with families parameterised by height, stem width and cap size, with the Abutments and Piers categories. Pile caps and piles reuse the pile cap family.
  3. Model the bridge girders with a precast girder family of the design section, Bridge Framing category; the deck uses the Bridge Decks category.
  4. Place bearings with the Bearings category and expansion joints with Expansion Joints at both span ends.
  5. Reinforce abutments, piers and caps as ordinary concrete elements, following rebar settings and column and footing rebar.
  6. Schedule concrete and rebar quantities by bridge category.

Drawings come out the familiar Revit way: general arrangement plan, longitudinal elevation, cross sections at each pier, rebar drawings for abutments, piers and caps, and schedules. Unlike buildings, the longitudinal elevation is usually a section running along the bridge centre line, and the cross sections sit perpendicular to it at each pier. Sections are covered in how to create a section in Revit, sheet layout in structural drawing sets in Revit.

The hard part is girders and deck on a curve or on a varying grade. Revit has no work plane that follows an alignment, so each span needs its own position and slope worked out. Multi-span bridges on curves are therefore often built with Dynamo or brought in from InfraWorks rather than drawn by hand.

Revit InfraWorks: importing a bridge from InfraWorks

InfraWorks lays out the bridge concept on the real alignment and terrain, then passes the elements to Revit for detailing. According to Autodesk's documentation (InfraWorks: exchanging data with Revit):

  • You need the Revit InfraWorks Updater plugin for Revit, and InfraWorks and Revit must be the same release year.
  • In InfraWorks, publish the bridge elements (Publish Civil Structures) to an intermediate IMX file.
  • In Revit, on the Add-Ins tab, import them (Import Civil Structures).
  • The InfraWorks model must use a planar coordinate system; the model lands in Revit relative to the Project Base Point.
  • Elements arrive in their mapped categories, so they can be scheduled and reinforced. When the InfraWorks design changes, import again to update.

This route suits multi-span girder bridges on curves, because InfraWorks has already computed each pier's position and elevation along the alignment.

Connecting Revit with Civil 3D

Civil 3D handles the alignment, terrain and pavement; Revit handles the bridge structure. There are two common links.

The first goes through InfraWorks as above: Civil 3D builds the alignment and corridor, InfraWorks places the bridge, Revit details it (Autodesk: Civil Structures workflow).

The second goes through IFC 4.3, the IFC release with infrastructure objects. According to Autodesk's BIM blog, Revit from 2023.1.1 can reference IFC 4.3 files exported from Civil 3D. Surfaces, corridors and bridges come into Revit as static shapes that keep their properties but cannot be edited parametrically (Autodesk BIM Blog: Civil 3D – Revit with IFC 4.3). This suits placing terrain and alignment as a backdrop for the bridge model. IFC types are compared in how to export IFC from Revit.

When not to use Revit for a bridge

Do not use Revit as the main tool when:

  • The project is a long route where most of the quantity is embankment, pavement and slopes: use Civil 3D.
  • The bridge geometry follows the alignment in complex ways, such as curved cantilever-cast box girders or cable-stayed bridges: use specialist bridge software for design, with Revit or Tekla only for detailing.
  • The span arrangement is still changing a lot: every change in span count or length means remodelling in Revit, while InfraWorks or Civil 3D update from the alignment.

Even then, Revit still has a place in the team: the pier foundations, abutments and any building structures on the route, such as toll plazas or maintenance buildings, are ordinary structural work where Revit's documentation is efficient.

Use Revit when you need detailed structural and rebar drawings for abutments, piers and girders, or when the bridge is part of a building project, such as a footbridge, an on-site overpass or a car park ramp.

Revit for bridges in Vietnam today

Increasingly, mainly for detailing abutments, piers and precast girders on projects that require BIM. Under Decree 217/2026, new works of grade II and above must apply BIM from the feasibility stage, which covers many bridges; submissions use IFC, as explained in how to export IFC from Revit. Most Vietnamese bridge projects that adopt BIM still split the work: Civil 3D for the route, specialist software for bridge analysis, and Revit or Tekla for detailed models and drawings.

Frequently asked questions

Can Revit model bridges?

Yes, for abutments, piers, girders, decks and bearings. From 2022 you can create families in the proper bridge categories. Leave the alignment and terrain to Civil 3D.

Where should I start learning Revit for bridges?

Learn Revit Structure first, because bridges use the same tools for concrete elements, rebar and schedules. Then learn families and Civil 3D. The overall path is in free Revit tutorials.

Do Revit and InfraWorks need to be the same release?

Yes. According to Autodesk, the data exchange plugin requires InfraWorks and Revit of the same release year.

Should bridge rebar be detailed in Revit or Tekla?

Both work. Revit suits teams that already produce their building drawings in Revit and want one tool for concrete, rebar and schedules. Tekla is stronger for complex precast and steel detailing and for fabrication output. The choice usually follows what the office and the contractor already use.

Which Revit release should I use for bridge work?

Revit 2022 or later, because model families in the bridge categories are only possible from 2022. For IFC 4.3 exchange with Civil 3D, use 2023.1.1 or later.

Can bridge design calculations be done in Revit?

No. Revit builds the model and drawings; bridge structural calculations are done in analysis software, and the results come back to drive the reinforcement model.

About the author

TS. Nguyễn Mạnh Tuấn — BIM Manager, Revit Architecture and Revit Structure lecturer at the Institute of Information Technology in Civil Engineering – Hanoi University of Civil Engineering