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Rio Grande Low Flow Initiative

The Rio Grande Low Flow Initiative aims to address critical streamflow concerns impacting the region. Collaborating with agencies like the National Weather Service and U.S. Border Patrol, we seek to improve water management, enhance gaging accuracy, and tackle low flow impacts that threaten native ecosystems, tourism, and security. Key issues include illegal crossings, negative effects on native vegetation, and challenges in resource management. Our objective is to increase situational awareness, foster cooperation, and utilize data for better planning and monitoring of river health.

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Rio Grande Low Flow Initiative

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  1. Rio Grande Low Flow Initiative Rio Grande Service Needs National Weather Service

  2. Preliminary Contacts • U. S. Border Patrol – Presidio • Big Bend National Park Service • River Rafting Outfitters

  3. Rio Grande Streamflow Concerns • Streamflow Measurements • Improved gaging (staff gages more vulnerable to flooding and silting) • Accuracy / Consistency • Streamflow Contributions • Ungaged tributaries from U.S. • Ungaged tributaries and reservoir releases from Mexico

  4. Rio Grande Streamflow Concerns Low Flow Impacts to Region Environmental Economic Social

  5. Low Flow Impacts • Low flows expose numerous illegal crossings • Security • Visitor Safety • Smuggling activities • Livestock movement (disease control) • Low flows threaten native vegetation and species • Invasion of non-native plants, fish, and other organisms • Algal blooms and fish kills (nutrient levels) • Low flows create resource management challenges • Staffing • Equipment • Tourism

  6. Low Flow Objective • How can we work together to… • Improve streamflow monitoring ? • Develop low flow impact information to increase situational awareness ? • Utilize weather and streamflow data to improve resource management and planning ?

  7. Rio Grande Louis L. Leon Reservoir Rio Conchos

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