Information for designing and submitting transportation plans for subdivision and site development projects

The Transportation Technical Manual (TTM) contains information for designing and submitting transportation plans for subdivision and site development projects to be constructed in unincorporated Hillsborough County.

There are two versions of our TTM depending on when you submitted your project. Any information provided by you to Hillsborough County is public information subject to public inspection, as required by law, and is non-confidential.

All Technical Bulletins

Email notifications

If you would like to receive email notifications of revisions please subscribe using our subscription service form. We welcome your comments and inputs on the information that is provided.

The manuals

The drawings

Drawings are available in three different formats:

  • PDF - Can open in the browser, but needs a PDF reader program such as Adobe Acrobat to download and view
  • DWG - AutoCAD - Needs AutoCAD installed to download
  • DGN - MicroStation - Needs MicroStation installed to download and are available for 2023 and 2021 files only
Last Modified: 1/16/2024, 2:36:53 PM