The TxDOT Roadway Inventory 2018 layer is a statewide dataset that has attribute information routed to TxDOT Roadway linework. By using linear referencing tools, attribute information from the TxDOT Roadway Inventory table are located on the linework. Roadway attributes such as functional system, traffic counts, surface types among many others can be found on a roadway simply by selecting it or performing a query. The TxDOT Roadway Inventory layer can also be found on www.TxDOT.gov and TxDOT’s Open Portal. This product is created annually by the Transportation Planning and Programming Division at TxDOT in the Data Analysis, Mapping and Reporting Branch for internal and public use.Update Frequency: 1 YearsSource: Geospatial Roadway Inventory Database (GRID)Security Level: PublicOwned by TxDOT: TrueRelated LinksData Dictionary PDF [Generated 2025/04/24]

This resource contains statewide networks of roadways, railroads, bridges, and low-water crossings, for Texas only.

Roadways detail: The Transportation Planning and Programming (TPP) Division of the Texas Department of Transportation (TxDOT) maintains a spatial dataset of roadway polylines for planning and asset inventory purposes, as well as for visualization and general mapping. M values are stored in the lines as DFOs (Distance From Origin), and provide the framework for managing roadway assets using linear referencing. This dataset covers the state of Texas and includes on-systems routes (those that TxDOT maintains), such as interstate highways, U.S. highways, state highways, and farm and ranch roads, as well as off-system routes, such as county roads and local streets. Date valid as of: 12/31/2014. Publish Date: 05/01/2015. Update Frequency: Quarterly.

Bridges detail: As with the roadways, both on-system and off-system bridges are maintained in separate datasets (54,844 total bridges, 36,007 on-system and 18,837 off-system). Bridges have numerous useful attributes, see coding guide [1] for documentation. One such attribute identifies structures that cross water: the second digit of Item 42 “Type of Service”. If the second digit is between 5 and 9 (inclusive) then the structure is over water. The bridges datasets are valid as of December 2016.

The roadways and bridges datasets contained here were obtained directly from TxDOT through personal correspondence. An additional transportation data resource is the Texas Natural Resources Information System (TNRIS) [3]. The railroads and low-water crossings were obtained through TNRIS.

November 2023 updates: in the years since this data archive was first published, TxDOT has developed an open data portal for downloading their roadway inventory and other datasets. Also, in 2023 TNRIS was renamed as the Texas Geographic Information Office (TxGIO). Their datahub [3] is continually evolving, but still has the tnris.org domain for now. We are not updating any of the basemap data in the contents list below, which was current at the time of Hurricane Harvey.

References [1] TxDOT Bridges Coding Guide (download below) [2] TxDOT Open Data Portal [https://gis-txdot.opendata.arcgis.com/] [3] TNRIS/TxGIO data downloads [https://data.tnris.org/]

From January 2017 to July 2018, TxDOT's Bicycle Tourism Trails Study examined the potential for a statewide network of long-distance bicycle routes to accommodate tourism and local needs. This feature class shows the Example Network segments, which may indicate future demand for long distance and local bicycling. Example Network routes represent an application of the qualitative and quantitative criteria established as part of the study. A more thorough analysis of local conditions and extensive stakeholder engagement is needed to advance development of any route. For more information, please consult TxDOT's Bicycle Tourism Trails Study Final Report https://www.txdot.gov/inside-txdot/modes-of-travel/bicycle/plan-design/tourism-study.html.

Update Frequency: As Needed

Source: PTN - TxDOT Bicycle Tourism Trails Example Network File Geodatabase

Security Level: Public

This dataset provides lane closure occurrences within the Texas Department of Transportation (TxDOT) highway system in a tabular format.

A continuously updating archive of the TxDOT WZDx feed data can be found at ITS WorkZone Raw Data Sandbox and the ITS WorkZone Semi-Processed Data Sandbox. The live feed is currently compliant with the Work Zone Data Exchange (WZDx) Specification version 2.0.

The Bridge dataset was developed using data provided by the Bridge Inspection Database. The Bridge Inspection Database contains a record for each Bridge Structure on public roadways in Texas. This includes Bridges maintained by TxDOT, Toll Authorities, Counties, Municipalities, and other jurisdictions. Bridge Inspection data is the primary source used to update the National Bridge Inspection File (NBI) in Washington. For more information on Bridge attribute data, please consult the Bridge Inspection Coding Guide and the Bridge Data Dictionary found at the links below:TxDOT Bridge Coding GuideTxDOT Bridge Data DictionaryUpdate Frequency: NightlySecurity Level: Public

Programmatically generated Data Dictionary document detailing the TxDOT Roadway Inventory 2013 service.

    The PDF contains service metadata and a complete list of data fields.
    For any questions or issues related to the document, please contact the data owner of the service identified in the PDF and Credits of this portal item.


  Related Links
  TxDOT Roadway Inventory 2013 Service URL
  TxDOT Roadway Inventory 2013 Portal Item

Bid Tabulations dataset displays advertisement and bidding information for the State and Local Lettings from the official sources of The Electronic State Business Daily (ESBD), the Electronic Bidding System, and the project proposal. Bidders should bid the project using the information found therein, including any addenda. These sources take precedence over information from other sources, including TxDOT webpages, which are unofficial and intended for informational purposes only. Bid Tabulations dataset includes data in previous 24 months.

THE INFORMATION IS ONLY THE TOTALS OF THE BIDS AS RECEIVED AND DOES NOT REPRESENT THAT A CONTRACT HAS BEEN OR WILL BE AWARDED.

The Project Information dataset displays detailed project information such as location, type of work, and estimated cost for projects scheduled for letting within the designated two consecutive fiscal years.

Its contents are refreshed hourly with data from TxDOT’s transportation program management system, TXDOTCONNECT. Project Information dataset includes data in current fiscal year plus 3 years forward.

The Pre-bid Q&A Packet dataset displays detailed questions and answers submitted before letting, including pre-bid questions, submission date and time, responder details, and other project information.

Its contents are refreshed daily with data from TxDOT’s transportation program management system, TXDOTCONNECT. The Project Information dataset includes all questions submitted by vendors and the responses provided by TxDOT.

Programmatically generated Data Dictionary document detailing the TxDOT Route District service.

    The PDF contains service metadata and a complete list of data fields.
    For any questions or issues related to the document, please contact the data owner of the service identified in the PDF and Credits of this portal item.


  Related Links
  TxDOT Route District Service URL
  TxDOT Route District Portal Item

Programmatically generated Data Dictionary document detailing the TxDOT Roadway Inventory service.

    The PDF contains service metadata and a complete list of data fields.
    For any questions or issues related to the document, please contact the data owner of the service identified in the PDF and Credits of this portal item.


  Related Links
  TxDOT Roadway Inventory Service URL
  TxDOT Roadway Inventory Portal Item

The Official and Unofficial Bid Items dataset displays advertisement and bidding information for the State and Local Lettings from the official sources of The Electronic State Business Daily (ESBD), the Electronic Bidding System, and the project proposal. Bidders should bid the project using the information found therein, including any addenda. These sources take precedence over information from other sources, including TxDOT webpages, which are unofficial and intended for informational purposes only. Official and Unofficial Bid Items dataset includes data in 42 forward days bid items.

Programmatically generated Data Dictionary document detailing the TxDOT Median service.

    The PDF contains service metadata and a complete list of data fields.
    For any questions or issues related to the document, please contact the data owner of the service identified in the PDF and Credits of this portal item.


  Related Links
  TxDOT Median Service URL
  TxDOT Median Portal Item

The TxDOT DCIS Projects service layer is a dataset of roadway construction and maintenance projects that are either currently under construction, or are in some phase of the planning process. Projects are grouped into 4 categories: projects that are currently underway or begins soon; projects in the construct authority (begins within the next four years); projects in the develop authority (planned to begin in 5 to 10 years); and projects in the initial phases of project development (corridor studies, construction in 10+ years). The dataset excludes non-letting projects. Update Frequency: 7 DaysSource: TxDOT Connect (TxC)Security Level: PublicOwned by TxDOT: TrueRelated LinksData Dictionary PDF [Generated 2025/05/21]

Programmatically generated Data Dictionary document detailing the TxDOT Government Control service.

    The PDF contains service metadata and a complete list of data fields.
    For any questions or issues related to the document, please contact the data owner of the service identified in the PDF and Credits of this portal item.


  Related Links
  TxDOT Government Control Service URL
  TxDOT Government Control Portal Item

Programmatically generated Data Dictionary document detailing the TxDOT National Highway System service.

    The PDF contains service metadata and a complete list of data fields.
    For any questions or issues related to the document, please contact the data owner of the service identified in the PDF and Credits of this portal item.


  Related Links
  TxDOT National Highway System Service URL
  TxDOT National Highway System Portal Item

Programmatically generated Data Dictionary document detailing the TxDOT HOV Lanes service.

    The PDF contains service metadata and a complete list of data fields.
    For any questions or issues related to the document, please contact the data owner of the service identified in the PDF and Credits of this portal item.


  Related Links
  TxDOT HOV Lanes Service URL
  TxDOT HOV Lanes Portal Item

Programmatically generated Data Dictionary document detailing the TxDOT Area Offices service.

    The PDF contains service metadata and a complete list of data fields.
    For any questions or issues related to the document, please contact the data owner of the service identified in the PDF and Credits of this portal item.


  Related Links
  TxDOT Area Offices Service URL
  TxDOT Area Offices Portal Item

Programmatically generated Data Dictionary document detailing the TxDOT Roadway Inventory RB OnSystem service.

    The PDF contains service metadata and a complete list of data fields.
    For any questions or issues related to the document, please contact the data owner of the service identified in the PDF and Credits of this portal item.


  Related Links
  TxDOT Roadway Inventory RB OnSystem Service URL
  TxDOT Roadway Inventory RB OnSystem Portal Item

Programmatically generated Data Dictionary document detailing the TxDOT Future Texas Toll Roads service.

    The PDF contains service metadata and a complete list of data fields.
    For any questions or issues related to the document, please contact the data owner of the service identified in the PDF and Credits of this portal item.


  Related Links
  TxDOT Future Texas Toll Roads Service URL
  TxDOT Future Texas Toll Roads Portal Item