Maps & Reports

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

The Watershed Master Plan (WSMP) Viewer displays data produced in the various Master Plan reports, as well as other useful reference data. It is intended to be used as a visualization tool to assist the public, stakeholders, and decision-makers in understanding both watershed issues and potential solutions.

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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.

Alerts

Stem Density Efforts

Update: Trails are open for the weekend until work resumes on Monday. Thank you for your patience and stay safe! Please be advised that trails near the Confluence Park and Conception Park area will be temporarily closed due to ongoing Stem Density efforts. We appreciate your cooperation and ask that you remain mindful of workers and closures when in the vicinity. Thank you for your patience as we work to improve our natural spaces!  

SASPAMCO Paddling Trail Temporarily Closed

Staff have removed two large log jams just downstream of Helton Nature Park, keeping the southern portion of the SASPAMCO Paddling Trail temporarily closed. Staff are working to contact adjacent landowners to support a land-based removal solution.

West Bank Trail Closure Notice

Due to the construction of a new trail and bridge, the West Bank of the trail between Schiller St. and Newell St. will be closed for the next couple of months. The East Bank will also be intermittently closed on Monday, November 4th, to install the bridge. Please use caution when navigating around this area. We apologize for any inconvenience. Please refer to the map for reference. 

San Pedro Creek Culture Park

The restrooms at South Alamo will be temporarily closed for maintenance and repairs. We apologize for any inconvenience and appreciate your understanding. 

Acequia Trail Notice

The Acequia trail will have heavy traffic near MROC starting May 22nd until further notice. The SAWS Acequia project will be bringing in crews to work on the lift station site and across the street. There will have flaggers to stop traffic, please use caution. 

SASPAMCO Paddling Trail

The SASPAMCO paddling trail is open from River Crossing Park to Helton Nature Park. *Please Note: Paddling Trail from Helton Nature Park to HWY 97 is still closed due to blockages. 

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