The San Antonio River Authority is a long-time user and advocate of Geographic Information Science/Systems (GIS) technology and solutions and continually strives to enhance and promote GIS within the agency and community. Learn more about the GIS resources that are currently available from the San Antonio River Authority by exploring the viewers and information featured here.
Questions? Be sure to visit our Frequently Asked Questions section at the bottom of the page.
Agency Interactive Viewers
Whether you are sitting at a desk or strolling along the River Walk, interactive GIS viewers are capable of displaying large amounts of data in an attractive, engaging, and user-friendly format. It’s easy to understand why they are a popular tool among GIS users of all skillsets! Learn more about the various projects and initiatives led by or involving the San Antonio River Authority by exploring the viewers featured below.
This application provides basic information about the various floodplains located throughout Bexar, Wilson, Karnes, and Goliad Counties. The data used in the application was collected by San Antonio River Authority and its partners. The ‘draft’ floodplains displayed are under FEMA review to be formally adopted.
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Risk MAP Viewer
The Risk Mapping, Assessment, and Planning (Risk MAP) Viewer provides communities with updated flood hazard information and risk assessment tools they can use to enhance their mitigation plans to better protect their citizens. This viewer was produced in coordination with the Federal Emergency Management Agency (FEMA).
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Water Quality Viewer
The Water Quality Viewer displays the monitoring efforts for the Texas Commission on Environmental Quality (TCEQ) Clean Rivers Program and summarizes how the water quality in the San Antonio River Basin compares to the Texas Surface Water Quality Standards (TSWQS) using the latest TCEQ Integrated Report assessment.
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Bacteria Dashboard
The River Authority tracks the bacteria Escherichia coli (E. coli) throughout the San Antonio River Watershed, and created this dashboard to display multiple visualizations of the most current monitoring station information.
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Watershed Master Plan Viewer
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SA Tomorrow Viewer
This application allows users to explore the geography and infrastructural characteristics of the many Regional Centers and Community Areas that are outlined in the SA Tomorrow Comprehensive Plan.
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GIS Open Data
The San Antonio River Authority allows access and use of its data and maps as a public service. This Open Data website allows the public to download San Antonio River Authority’s maps and data. These maps and/or data are to be used for reference and/or informational purposes only and may not have been prepared for or be suitable for legal, engineering, or surveying purposes. It does not represent an on-the-ground survey and represents only the approximate relative location of property boundaries.
Frequently Asked Questions
Other GIS Data Sources
For all information and GIS data related to floodplain and watershed management but not maintained by the San Antonio River Authority, please refer to the following local, regional, state, and national entities.