Maintenance Section Offices are the second administrative subdivision under TxDOT Districts and Area Engineer Offices. The Geospatial Roadway Inventory Database application (GRID) is the system of record for storing roadway maintenance designation. The maintenance office designation is coded onto every on-system (state owned) road as a linear feature. Update Frequency: 1 MonthsSource: Geospatial Roadway Inventory Database (GRID)Security Level: PublicOwned by TxDOT: TrueRelated LinksData Dictionary PDF [Generated 2025/05/21]

This site provides access to download an ArcGIS geodatabase or shapefiles for the 2017 Texas Address Database, compiled by the Center for Water and the Environment (CWE) at the University of Texas at Austin, with guidance and funding from the Texas Division of Emergency Management (TDEM). These addresses are used by TDEM to help anticipate potential impacts of serious weather and flooding events statewide. This is part of the Texas Water Model (TWM), a project to adapt the NOAA National Water Model [1] for use in Texas public safety. This database was compiled over the period from June 2016 to December 2017. A number of gaps remain (towns and cities missing address points), see Address Database Gaps spreadsheet below [4]. Additional datasets include administrative boundaries for Texas counties (including Federal and State disaster-declarations), Councils of Government, and Texas Dept of Public Safety Regions. An Esri ArcGIS Story Map [5] web app provides an interactive map-based portal to explore and access these data layers for download.

The address points in this database include their "height above nearest drainage" (HAND) as attributes in meters and feet. HAND is an elevation model developed through processing by the TauDEM method [2], built on USGS National Elevation Data (NED) with 10m horizontal resolution. The HAND elevation data and 10m NED for the continental United States are available for download from the Texas Advanced Computational Center (TACC) [3].

The complete statewide dataset contains about 9.28 million address points representing a population of about 28 million. The total file size is about 5GB in shapefile format. For better download performance, the shapefile version of this data is divided into 5 regions, based on groupings of major watersheds identified by their hydrologic unit codes (HUC). These are zipped by region, with no zipfile greater than 120mb: - North Tx: HUC1108-1114 (0.52 million address points) - DFW-East Tx: HUC1201-1203 (3.06 million address points) - Houston-SE Tx: HUC1204 (1.84 million address points) - Central Tx: HUC1205-1210 (2.96 million address points) - Rio Grande-SW Tx: HUC2111-1309 (2.96 million address points)

Additional state and county boundaries are included (Louisiana, Mississippi, Arkansas), as well as disaster-declaration status.

Compilation notes: The Texas Commission for State Emergency Communications (CSEC) provided the first 3 million address points received, in a single batch representing 213 of Texas' 254 counties. The remaining 41 counties were primarily urban areas comprising about 6.28 million addresses (totaling about 9.28 million addresses statewide). We reached the GIS data providers for these areas (see Contributors list below) through these emergency communications networks: Texas 9-1-1 Alliance, the Texas Emergency GIS Response Team (EGRT), and the Texas GIS 9-1-1 User Group. The address data was typically organized in groupings of counties called Councils of Governments (COG) or Regional Planning Commissions (RPC) or Development Councils (DC). Every county in Texas belongs to a COG, RPC or DC. We reconciled all counties' addresses to a common, very simple schema, and merged into a single geodatabase.

November 2023 updates: In 2019, TNRIS took over maintenance of the Texas Address Database, which is now a StratMap program updated annually [6]. In 2023, TNRIS also changed its name to the Texas Geographic Information Office (TxGIO). The datasets available for download below are not being updated, but are current as of the time of Hurricane Harvey.

References: [1] NOAA National Water Model [https://water.noaa.gov/map] [2] TauDEM Downloads [https://hydrology.usu.edu/taudem/taudem5/downloads.html] [3] NFIE Continental Flood Inundation Mapping - Data Repository [https://web.corral.tacc.utexas.edu/nfiedata/] [4] Address Database Gaps, Dec 2017 (download spreadsheet below) [5] Texas Address and Base Layers Story Map [https://www.hydroshare.org/resource/6d5c7dbe0762413fbe6d7a39e4ba1986/] [6] TNRIS/TxGIO StratMap Address Points data downloads [https://tnris.org/stratmap/address-points/]

Description: These layers contains the nonattainment and maintenance areas (counties) in Texas. It was derived from the EPA’s Greenbook. A nonattainment designation means an area has not achieved compliance with the National Ambient Air Quality Standards (NAAQS). A maintenance designation means the area was formerly in nonattainment but has monitored attainment and is currently under a maintenance plan1. The U.S. Environmental Protection Agency (EPA) established the 8-Hour ozone NAAQS in 1997 and revised it with the 2008 and 2015 standards. The 1997 ozone NAAQS was revoked in April 6, 20152, along with the classifications, so the current maintenance designation is based on the approval of a maintenance plan by EPA for the region; rather than an official reclassification. These nonattainment counties were designated by the EPA based on their air quality monitoring data. Before it was revoked, there were 17 nonattainment counties for the 1997 ozone NAAQS: 8 counties in the Houston/ Galveston area (Brazoria, Chambers, Fort Bend, Galveston, Harris, Liberty, Montgomery, and Waller); and 9 counties is the Dallas/Fort Worth area (Collin, Dallas, Denton, Ellis, Johnson, Kaufman, Parker, Rockwall, and Tarrant). There are 3 maintenance counties for the 1997 ozone NAAQS in the Beaumont/Port Arthur area (Hardin, Orange, Jefferson)3. There are 18 nonattainment counties for the 2008 ozone NAAQS: 8 counties in the Houston/ Galveston area (Brazoria, Chambers, Fort Bend, Galveston, Harris, Liberty, Montgomery, and Waller); and 10 counties in the Dallas/Fort Worth area (Collin, Dallas, Denton, Ellis, Johnson, Kaufman, Parker, Rockwall, Tarrant, and Wise)4. There are 16 nonattainment counties for the 2015 ozone NAAQS: 1 county in the San Antonio area (Bexar); 6 counties in the Houston/ Galveston area (Brazoria, Chamber, Fort Bend, Galveston, Harris, and Montgomery); and 9 in the Dallas/Fort Worth area (Collin, Dallas, Denton, Ellis, Johnson, Kaufman, Parker, Tarrant, and Wise)5. The EPA established the NAAQS for particulate matter with a diameter of 10 micrometers or smaller (PM-10) in 1987. There is one nonattainment area for the 1987 PM-10 NAAQS: which is a portion of El Paso county6. The EPA established the NAAQS for carbon monoxide (CO) in 1971. There is one maintenance area for the 1971 CO NAAQS: which is a portion of El Paso county7. References:1. United States Environmental Protection Agency, Frequent Questions about General Conformity; accessed 1 April 2021, https://www.epa.gov/general-conformity/frequent-questions-about-general-conformity#86-523A-4466-AE04-09EAEF7C16F3%7D2. United States Environmental Protection Agency, Transportation Conformity Guidance for the South Coast II Court Decision, 20183. United States Environmental Protection Agency, Green Book 8-Hour Ozone (1997) Area Information - NAAQS Revoked; accessed 1 April 2021, https://www.epa.gov/green-book/green-book-8-hour-ozone-1997-area-information-naaqs-revoked4. United States Environmental Protection Agency, Green Book 8-Hour Ozone (2008) Area Information, accessed 1 April 2021, https://www.epa.gov/green-book/green-book-8-hour-ozone-2008-area-information5. United States Environmental Protection Agency, Green Book 8-Hour Ozone (2015) Area Information, accessed 1 April 2021, https://www.epa.gov/green-book/green-book-8-hour-ozone-2015-area-information6. United States, Environmental Protection Agency, Green Book PM-10 (1987) Area Information, accessed 5 April 2021, https://www.epa.gov/green-book/green-book-pm-10-1987-area-information7. United States, Environmental Protection Agency, Green Book Carbon Monoxide (1971) Area Information, accessed 6 April 2021, https://www.epa.gov/green-book/green-book-carbon-monoxide-1971-area-informationUpdate Frequency: As needed.

Source: Environmental Affairs

Security Level: Public

This layer is sourced from gis.co.collin.tx.us.

The service serves as the background layer for the feature service hydrant edit layer. As edits are made to the hydrants and the current date is entered, an "X" appears on the hydrant in this map service to record the visit and maintenance check for the hydrant.

© Collin County GIS, Bret Fenster, Cory Claborn, Wylie Fire Department, City of Wylie, Collin County Government

Bicycle Repair Station points on campuses and sites occupied by the University of North Texas. Some remote sites outside of the City of Denton may not be available. Bicycle Repair Stations are in a constant state of change and UNT Facilities GIS staff map these changes using high-accuracy GPS equipment. This data is not automatically updated after changes occur, it will be updated quarterly. Any derivative work that makes use of UNT data, products, or services should include an appropriately placed credit reference in substantial conformity with the following: “Data from the University of North Texas was used in the preparation of this product.”

This layer is sourced from gis.co.collin.tx.us.

The service serves as the background layer for the feature service hydrant edit layer. As edits are made to the hydrants and the current date is entered, an "X" appears on the hydrant in this map service to record the visit and maintenance check for the hydrant.

© Collin County GIS, Bret Fenster, Cory Claborn, Wylie Fire Department, City of Wylie, Collin County Government

This data layer can be used for a variety of purposes, including: the plotting of DCRP sites on maps; utilization by field personnel; and performing spatial analysis on how the sites affect their surroundings. The purpose of the Dry Cleaner Remediation Program is to oversee the cleanup of with soil and groundwater contamination caused by dry cleaning solvents from dry cleaning facilities. The goal is to assure that the public is not exposed to hazardous levels of chemicals by requiring mitigation and/or removal of the contamination to levels protective of human health and the environment.The Dry Cleaner Remediation Program (DCRP) was established by the Texas Legislature in 2003. It created the Dry Cleaning Facility Release Fund for state lead clean up of dry cleaner related contaminated sites. It also established dry cleaner facility registration requirements, fees, performance standards, distributor registration, and revenue disbursement. The Dry Cleaner Remediation Program web URL is: (https://www.tceq.texas.gov/remediation/dry_cleaners/index.html).

This polygon shapefile represents the strucutres in College Station on Texas A&M University campus. These structures along with maintenance performed for it is cataloged by the Office of Facilities Coordination at Texas A&M University. This data was created in July 2010 ans has not been updated. This layer is part of a collection of GIS data created by the Office of Facilities Coordination at Texas A&M University.

This polygon shapefile represents the campus pools and fountain in Texas A&M University. These pools and fountains are used by the Office of Facilities Coordination at Texas A&M University for management of use and maintenance. This data was created in July 2010 and has not been updated. This layer is part of a collection of GIS data created by the Office of Facilities Coordination at Texas A&M University.

TxDOT's 25 Districts are geographic subdivisions of the state, each responsible for planning, construction, and maintenance of on-system roadways within its administrative boundary. Each district is a conglomeration of several Texas counties. Area Engineer and Maintenance Section Offices are subdivisions of a district. This version utilizes a generalized boundary along the coast, which is sometimes necessary for analysis in which it is important to encompass segments of roadways that travel over water. Roadways on bridges or causeways that span intracoastal waterways are not covered by detailed polygons that precisely follow the coastline, therefore this generalized boundary layer is needed for some types of analysis where it is important to preserve such relationships. Date valid as of: February 2015 Publish Date: February 2015 Update Frequency: StaticSecurity Level: Public

The Transportation Planning and Programming Division (TPP) of the Texas Department of Transportation (TxDOT) created this polygon layer for planning, analysis, and mapping purposes. Area Engineer Offices are the first administrative subdivision under TxDOT Districts. Each district is divided into several area offices, which are generally made up of several counties. Each area office, in turn, is divided into several Maintenance Sections.

Date valid as of: August 2018

Publish Date: August 2018

Update Frequency: As needed

Security Level: Public

This polygon shapefile represents the sidewalk in College Station on Texas A&M University campus. The sidewalk along with maintenance performed for it is cataloged by the Office of Facilities Coordination at Texas A&M University. This data was created in July 2010 ans has not been updated. This layer is part of a collection of GIS data created by the Office of Facilities Coordination at Texas A&M University.

This polygon shapefile represents a pond in College Station on Texas A&M University campus. This pond along with maintenance performed for it is cataloged by the Office of Facilities Coordination at Texas A&M University. This data was created in July 2010 ans has not been updated. This layer is part of a collection of GIS data created by the Office of Facilities Coordination at Texas A&M University.

This polygon shapefile represents a golf course in College Station on Texas A&M University property. This golf course along with maintenance performed for it is cataloged by the Office of Facilities Coordination at Texas A&M University. This data was created in July 2010 ans has not been updated. This layer is part of a collection of GIS data created by the Office of Facilities Coordination at Texas A&M University.

This polygon shapefile represents the parking lots in College Station on Texas A&M University campus. These parking lots along with maintenance performed for them is cataloged by the Office of Facilities Coordination at Texas A&M University. This data was created in July 2010 ans has not been updated. This layer is part of a collection of GIS data created by the Office of Facilities Coordination at Texas A&M University.

This polygon shapefile represents the Sports and Rec field area in College Station on Texas A&M University campus. This area along with maintenance performed for it is cataloged by the Office of Facilities Coordination at Texas A&M University. This data was created in July 2010 ans has not been updated. This layer is part of a collection of GIS data created by the Office of Facilities Coordination at Texas A&M University.

The Active Road Blocks and Closures dataset contains point features representing active road block locations within Montgomery County, Texas. These road blocks and closures are currently in effect and may be temporary restrictions due to construction, maintenance activities, emergencies, or special events. This dataset includes attributes such as location, block status, reason for closure, duration, full or partial closure, barricade status, and more.Active road blocks or road closures with location affected due to one of the following:EventHigh WaterIcyIncidentMaintenanceSignal Out

Proposed real property right of way Access (Control) Denial Lines of current acquisition projects (limited to ongoing priority projects). The data was created for internal use during the acquisition of additional Right of Way parcels and to aid in locating the Right of Way during construction and maintenance. It was also created to provide the public with more comprehensive information about how a project may impact their property or the area in which they live.ROW Access Control Lines. This data will be updated nightly

This dataset contains a single point for each TxDOT office location, including: State Headquarters, District Headquarters, Area Engineer Offices, Maintenance Offices and Maintenance Yards, Special District Offices, Travel Information Centers, Safety Rest Areas, and Vehicle Title and Registration Offices. This dataset does not included roadside picnic areas. Generally point locations falls near the entrance to each facility, near the front door, or at the centroid of the facility. Point locations for Travel Information Centers and Safety Rest Areas are located at the beginning of the exit ramp. Support Services Division is the Office of Primary Responsibility (OPR) for this data. Tabular data was provided to TPP and converted to GIS format then provided to local district personnel for review, edit, and comment. Date valid as of: currentUpdate Frequency: as edited in the Facilities Map

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]