Agencies
Services
Download, enable, and view sample IDOT components within interactive 3D PDFs below.
- Instructions (9/2025)
- 3.8.3 Integral Abutment (9/2025)
- 3.8.4 Semi-Integral Abutment - New Construction (9/2025)
- 3.8.4.1 Semi-Integral Abutment - Conversion (9/2025)
IDOT CADD Downloads and Guidelines
The IDOT CADD environment is downloaded as a self-extracting file and can only be used with MicroStation software. See Support section for download.
The following are the guidelines and rules for CADD project data:
- Computer Aided Design, Drafting, Modeling & Deliverables Manual
- Example Plans
- Bridge Model Sample: Bridge design plan example utilizing sheet models.
- Straight Bridge 3D Modeling in OBM: The provided workbook will lead the user in the creation of an IDOT-specific 3D bridge model. The structure is a 3-span, wide flange bridge, supported by integral abutments and pile bent/solid wall piers. The model creation makes use of basic OpenBridge Modeler tools, Generative Components, and MicroStation 3D modeling tools. (This Workbook and dataset was used in both the Fall 2024 and Spring 2025 IAETP conferences).
- OBM Generative Components: Recently the IDOT CONNECTED CADD Environment was released which included configuration files/tools for use with OpenBridge Modeler (OBM). One of those tools is called a Generative Component (GC). We have GC’s that were developed for three of our abutment types which were unable to be modeled using the built-in tools of OBM. The documents explain their use and show the variable names as well as where they apply. These files are meant for those who would like to try out the GC's. Their use is not required at this time.
Need Help?
Email your question(s) to IDOT CADD Support
Notice of Disclaimer: IDOT offers the files, documents, and applications from this web page on an “as is” basis. All warranties and representations of any kind with regard to any download file are disclaimed, including the implied warranties of merchantability and fitness for a particular use. Under no circumstance will IDOT or any of its employees be liable for any consequential, incidental, special or exemplary damages even if apprised of the likelihood of such damages occurring. IDOT does not warrant the files, applications or documents against deficiencies of any kind. The use of any of the documents, files or applications for work which is under contract with IDOT, does not relieve the consultant or contractor from any obligations assumed by the contract, or from complete and proper fulfillment of the terms of the contract, nor does it entitle the consultant or contractor to compensation for damages or loss which could be attributed to such use.