About Us - BIM4I

Caltrans is implementing Building Information Modeling for Infrastructure (BIM4I) to improve teamwork, precision, and efficiency throughout the stages of planning, designing, constructing, and maintaining transportation infrastructure. By creating a shared digital environment, BIM4I enables Caltrans and its partners to visualize projects in 3-D, manage data effectively across a project’s lifecycle and ensure clear communication between teams. Caltrans BIM4I Program is responsible for leading BIM4I implementation efforts throughout Caltrans.

Implementation is well underway through various pilot projects and collaboration efforts. The BIM4I Program, under the Division of Project Management, oversees the implementation, standards, guidance, and training development efforts throughout Caltrans.

Annual BIM4I Summit

Our annual summit is an in-person workshop for discussing the adoption of digital tools to delivering transportation projects. We encourage Caltrans and industry partners to attend.

Implementation Plans

  • Caltrans Building Information Modeling for Infrastructure (BIM4I) Initiative Final Implementation Plan (PDF), dated April 2023. Caltrans’s BIM4I implementation plan provides the framework to: use a project information model (PIM) and digital files to convey design intent for construction; establishing the PIM and digital files as the project’s legal documentation in lieu of a two-dimensional (2-D) plan set; and capture digital as-built data during construction of the physical asset to build the Asset Information Model (AIM), the digital asset that will enhance the collaboration, support asset management, planning, and future project development.
  • Caltrans Construction Contract Administration Systems Implementation Plan (PDF), dated December 2023. This implementation plan provides a roadmap and tools for adopting digital construction management technology for processes that fall within the Construction project administrative and management scope in alignment with AB 1037.

State Requirements

Construction Procedure Directives

Federal Requirements