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]

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. This dataset covers the state of Texas and includes on-system 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. Route segments in this version of TxDOT Roadways are broken by functional classification. For an unsegmented version of TxDOT Roadways, see TxDOT Roadways Unsegmented.This data contains measures. Measures are stored as M-values within each vertex along the line, in the same way that some datasets store z-values for the elevation, except that measures store the distance from the origin, or DFO, along the line. M-enabled networks serve as frameworks for locating roadway assets along the network using linear referencing. This data set must be downloaded as a file geodatabase in order to keep M-Values intact. If downloaded as a shapefile or added to a map from a connection to ArcGIS online, measures will not be applied to the line.Update Frequency: MonthlySource: Geospatial Roadway Inventory Database (GRID)Security Level: Public

The Texas Department of Transportation (TxDOT)maintains a spatial dataset of roadway polylines for planning and assetinventory purposes, as well as for visualization and general mapping. Thisdataset covers the state of Texas and includes on-system routes (those thatTxDOT maintains), such as interstate highways, U.S. highways, state highways,and farm and ranch roads, as well as off-system routes, such as county roadsand local streets.This data contains measures. Measures are storedas M-values within each vertex along the line, in the same way that somedatasets store z-values for the elevation, except that measures store thedistance from the origin, or DFO, along the line. M-enabled networks serve asframeworks for locating roadway assets along the network using linearreferencing. This data set must be downloaded as a file geodatabase in order tokeep M-Values intact. If downloaded as a shapefile or added to a map from aconnection to ArcGIS online, measures will not be applied to the line.Update Frequency: 1 MonthsSource: Geospatial Roadway Inventory Database (GRID)Security Level: PublicOwned by TxDOT: TrueRelated LinksData Dictionary PDF [Generated 2025/04/24]

Programmatically generated Data Dictionary document detailing the TxDOT Roadway Inventory 2018 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 2018 Service URL
  TxDOT Roadway Inventory 2018 Portal Item

TxDOT Roadway Inventory Specifications for 2022 was produced internally by staff in the Data Management Section of the Transportation Programming and Planning division. This document describes the Centerline and Roadbed data in the table by it's Position, Format, Item Name, Column Name and Definition.Security Level: PublicUpdated: AnnuallyLast Revision: 08/05/2023

Programmatically generated Data Dictionary document detailing the TxDOT Roadways Unsegmented 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 Roadways Unsegmented Service URL
  TxDOT Roadways Unsegmented Portal Item

2023 End of Year roadway data that includes TxDOT highway information for Single Roadbed, Left Frontage and Right Frontage roadbeds. This dataset is produced annually.Update Frequency: 1 YearsSource: Geospatial Roadway Inventory Database (GRID)Security Level: PublicOwned by TxDOT: TrueRelated LinksData Dictionary PDF [Generated 2025/04/24]

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. This dataset is a subset of the published TxDOT roadway network, that represents the National Highway Freight Network as published under the FAST Act.Update Frequency: 1 YearsSource: Geospatial Roadway Inventory Database (GRID)Security Level: PublicOwned by TxDOT: TrueRelated LinksData Dictionary PDF [Generated 2025/03/17]

Annual average daily traffic. This data is an extract from the Geospatial Roadway Inventory Database (GRID), which is TxDOT's system for managing roadway assets in Texas. Note: Extracts from GRID are made on a regular basis and reflect the state of the data at that moment. Assets on routes that are in the process of being edited may be affected. Updated: AnnuallySource: Geospatial Roadway Inventory Database (GRID)Security Level: PublicUpdate Frequency: 1 YearsSource: Geospatial Roadway Inventory Database (GRID)Security Level: PublicOwned by TxDOT: TrueRelated LinksData Dictionary PDF [Generated 2025/04/23]

Programmatically generated Data Dictionary document detailing the TxDOT Roadway Network Edits History 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 Network Edits History Service URL
  TxDOT Roadway Network Edits History Portal Item

The National Highway System (NHS) consists of roadways important to the nation's economy, defense, and mobility (Interstates, Other Principal Arterials, Strategic Highway Network, Major Strategic Highway Network Connectors, and Intermodal Connectors).This statewide NHS dataset is maintained by the Transportation Planning and Programming Division per Federal Highway Administration requirements, and to serve as a base layer for TxDOT's cartographic products.Update Frequency: 1 YearsSource: Geospatial Roadway Inventory Database (GRID)Security Level: PublicOwned by TxDOT: TrueRelated LinksData Dictionary PDF [Generated 2025/04/24]

Programmatically generated Data Dictionary document detailing the TxDOT Roadways 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 Roadways Service URL
  TxDOT Roadways Portal Item

This feature class displays a polyline layer that contains roadway attributes of certain roadbeds that was routed using linear referencing tools to the TxDOT Roadway Linework (exludes supplemental roadbeds).

Linear feature service of TxDOT Roadway stamped by TxDOT county boundaries for use in the Simplified Roadway Diagram and CRI applicationsUpdate Frequency: 1 MonthsSource: Geospatial Roadway Inventory Database (GRID)Security Level: PublicOwned by TxDOT: TrueRelated LinksData Dictionary PDF [Generated 2025/05/21]

Programmatically generated Data Dictionary document detailing the TxDOT Roadway Status 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 Status Service URL
  TxDOT Roadway Status Portal Item

Programmatically generated Data Dictionary document detailing the TxDOT Route County 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 County Service URL
  TxDOT Route County Portal Item

Linear feature service of TxDOT Roadways stamped by TxDOT district boundaries for use in the Simplified Roadway Diagram application.Update Frequency: 1 MonthsSource: Geospatial Roadway Inventory Database (GRID)Security Level: PublicOwned by TxDOT: TrueRelated LinksData Dictionary PDF [Generated 2025/05/21]

Programmatically generated Data Dictionary document detailing the TxDOT Route City 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 City Service URL
  TxDOT Route City 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]

Collection of scale Texas roadway layers with airport and active railways.