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.
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The manuals
- Transportation Technical Manual - October 2023 - For projects submitted on or after November 1, 2023 or that opt to comply
- Transportation Technical Manual - October 2021 (Archived) - For projects submitted on or after November 8, 2021 or that opt to comply
- Transportation Technical Manual - October 2017 (Archived) - For projects submitted on or after October 2, 2017 or that opt to comply
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