TransInfo is the official ODOT data source for the State Highway network and is used to tabulate the official State mileage. It also carries 90 plus associated assets. Information available includes Road Geometry, Bike and Pedestrian assets, Classifications like Federal Functional Class or National Highway System (NHS), Intersecting Roads, and many others.
The TransInfo Data Dictionary will help you learn more about the assets available from TransInfo that reside on the State Highway Network. It provides a description of each asset and its associated attributes, as well as possible values for those attributes. It works best in Edge or Chrome.
TI Data Dictionary