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Texas-Harvey Basemap - Addresses and Boundaries

Authors: David Arctur · David Maidment
Owners: David Arctur · Harvey datamgr
DOI:10.4211/hs.d2bab32e7c1d4d55b8cba7221e51b02d How to Cite
Resource type:Composite Resource
Created:Apr 17, 2018 at 8:18 a.m.
Last updated: Nov 27, 2018 at midnight by David Arctur


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, for use with the Hurricane Harvey 2017 Data Archive at HydroShare [6].

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.

[1] NOAA National Water Model [http://water.noaa.gov/map]
[2] TauDEM Downloads [http://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] Hurricane Harvey 2017 Data Archive Story Map [http://arcg.is/001jje]

Subject Keywords

DPS Regions,DPS Districts,Addresses,Address Points,TDEM,Height Above Nearest Drainage,Emergency Response,9-1-1,HAND,Texas,Harvey2017

How to cite

Arctur, D., D. Maidment (2018). Texas-Harvey Basemap - Addresses and Boundaries, HydroShare, https://doi.org/10.4211/hs.d2bab32e7c1d4d55b8cba7221e51b02d

This resource is shared under the Creative Commons Attribution CC BY,

The Consortium of Universities for the Advancement of Hydrologic Science Inc (CUAHSI) and the University of Texas (UT) shall not be held liable for improper or incorrect use of the data described or information contained on this map or associated series of maps. The data and related map graphics are not legal, land survey or engineering documents and are not intended to be used as such.

CUAHSI and UT give no warranty, express or implied, as to the accuracy, reliability, utility or completeness of this information. The user of these maps and data assumes all responsibility and risk for the use of the maps and data. CUAHSI and UT disclaim all warranties, representations or endorsements either express or implied, with regard to the information contained in this map product, including, but not limited to, all implied warranties of merchantability, fitness for a particular purpose or non-infringement.

This preliminary map product is for research and review purposes only. It is not intended to be used for emergency management operational or life safety decisions at the local or regional governmental level or by the general public. Users requiring information regarding hazardous conditions or meteorological conditions for specific geographic areas should consult directly with their city or county emergency management office.

  • Downloads require agreement to resource rights statement

  • Sharing status:

    • Published Resource  Published



     Coordinate System/Geographic Projection:  WGS 84 EPSG:4326
     Coordinate Units:  Decimal degrees
    North Latitude
    East Longitude
    South Latitude
    West Longitude


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    The people or organizations that created the intellectual content of the resource.

    Name Organization Address Phone Author Identifiers
    David Arctur University of Texas at Austin 512-771-1434
    David Maidment University of Texas at Austin


    People or organizations that contributed technically, materially, financially, or provided general support for the creation of the resource's content but are not considered authors.

    Name Organization Address Phone Author Identifiers
    Monica Watt, Data Quality Manager Texas Commission for State Emergency Communications (CSEC) Austin, TX
    Vonda Payne, Program Manager Texas Commission for State Emergency Communications (CSEC) Austin, TX
    Donna Kaniowski, Technical Program Manager West Corporation San Antonio, TX
    James D. Goerke, CEO Texas 9-1-1 Alliance Austin, TX
    Doug Forsythe, President Texas Municipal Emergency Communications Districts Association (MECDA) Austin, TX
    David Allen, Director Texas Emergency GIS Response Team (Texas EGRT) Euless, TX
    Harold R. Evans, Senior Research Fellow University of Texas at Austin Austin, TX
    Xing Zheng University of Texas at Austin Austin, TX
    Jennifer Lopez, 9-1-1 GIS Analyst South Texas Development Council (STDC) Laredo, TX
    Rodger Mann, 9-1-1 GIS Supervisor North Central Texas Council of Governments (NCTCOG) Arlington, TX
    Craig Eissler, GIS Program Manager Capitol Area Council of Governments (CAPCOG) Austin, TX
    Miguel Pavon, Mapping Solutions Lead Texas Natural Resources Information System (TNRIS) Austin, TX
    Jessica Beierman, GIS Project Manager Geo-Comm, Inc. St. Cloud, MN
    Bob Long, GIS Director Bexar Metro 9-1-1 Network District San Antonio, TX
    Rosa Rodriguez, GIS Manager Midland County 9-1-1 District Midland, TX
    Jeffrey Hill, Executive Director Austin County Emergency Communications District (ACECD) Bellville, TX
    Norma Nolazco, Database Coordinator Coastal Bend Council of Governments (CBCOG) 9-1-1 Network Corpus Christi, TX
    John Streeb, 9-1-1 Addressing Coordinator Nacogdoches County Nacogdoches, TX
    Patrick Corley, ECD Director Brazos County Emergency Communications District (BCECD) Brazos County, TX
    Raquel Morales, Executive Director E911 Calhoun County E911 Calhoun County, TX
    Alfonso Garrido, GIS Coordinator Cameron County Department of Transportation San Benito, TX
    Christine Thies, Planning & Research Manager Austin Fire Department Austin, TX
    Vanessa Feagins, GIS Supervisor Denton County 9-1-1 District Denton, TX
    Mary Kozak, Director El Paso County 9-1-1 District El Paso, TX
    Thelma Marron, GIS Manager El Paso County 9-1-1 District El Paso, TX
    Jack Wilkins, GIS Coordinator Galveston County 9-1-1 District Galveston, TX
    Lavergne Schwender, Director Greater Harris County 9-1-1 District Houston, TX
    Pam Allen, Director Texas Eastern 9-1-1 District Henderson, TX
    Pat Ebel, GIS Manager Henderson County 9-1-1 District Athens, TX
    Tommy Sullivan Howard County 9-1-1 District Big Spring, TX
    Mark Del Toro, Executive Director Kerr County 9-1-1 District Kerrville, TX
    Brad Patrick, GIS Addressing Coordinator Lubbock County 9-1-1 District Lubbock, TX
    Jesse Harrison, ECD Director McLennan County 9-1-1 District McLennan County, TX
    Warren Samuelson, State Dams Data Authority Texas Commission for Environmental Quality (TCEQ) Austin, TX
    Regina Payne, Database Coordinator Montgomery County 9-1-1 District Montgomery County, TX
    Rey Campos, GIS Coordinator Potter-Randall Counties 9-1-1 District Amarillo, TX
    Bill Morales, ECD Director Smith County 9-1-1 District Smith County, TX
    Phillip Rohrbough, 9-1-1 Coordinator Tarrant County 9-1-1 District Fort Worth, TX
    Ed Boyle, City GIS Administrator Taylor County 9-1-1 District Abilene, TX
    Barbara Cowart, GIS Analyst Wichita-Wilbarger Counties 9-1-1 District Wichita Falls, TX
    Joseph Munyao Esri Professional Services Redlands, CA
    Donna Burger, 9-1-1 GIS Coordinator Golden Crescent Regional Planning Commission (GCRPC)
    Stephen Tice, HS Manager Middle Rio Grande Development Council 9-1-1
    Eddie Guerra, GIS Manager Middle Rio Grande Development Council 9-1-1
    James Moore, GIS Coordinator Southeast Texas Regional Planning Commission (SETRPC) 9-1-1 Emergency Network Beaumont, TX
    Tom Yarbrough, Bridge Management Engineering Texas Department of Transportation (TXDOT) Austin, TX
    Matt Ables KISTERS North America, Inc. Citrus Heights, CA
    cites: Texas Address and Base Layers Story Map [https://www.hydroshare.org/resource/6d5c7dbe0762413fbe6d7a39e4ba1986/]
    This resource belongs to the following collections:
    Title Owners Sharing Status My Permission
    Harvey Basemap Data Collections David Arctur · Harvey datamgr  Published Open Access
    Texas Addresses Basemap Collection David Arctur  Published Open Access


    This resource was created using funding from the following sources:
    Agency Name Award Title Award Number
    US Federal Emergency Management Administration (FEMA)
    Texas Division of Emergency Management (TDEM)
    National Science Foundation (NSF) RAPID: Archiving and Enabling Community Access to Data from Recent US Hurricanes 1761673


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