Celebrating the River Authority River Warrior Volunteers

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River Warriors as they completed another successful cleanup!

Last Updated on January 30, 2024

Who are the River Warriors?

San Antonio River Authority (River Authority) River Warrior volunteers are integral to our agency’s vision of inspiring actions for healthy creeks and rivers. Every year the River Warriors dedicate thousands of volunteer hours to helping protect and preserve our precious waterways. Here are some of their impressive accomplishments over the past year:

  • Trained River Warriors removed 1,680 invasive apple snails and 3,365 egg cases. Multiply that number by approximately 1,000. That’s how many individual snails can hatch out of one egg case! This was almost 40% of the total removal efforts since these snails were first observed in our river in October 2019. Read more about apple snail removal efforts.
  • River Warrior Beaver Dam Building Teams built 16 small and big dams in just seven workdays at Medina River Natural Area (MRNA) as part of Texas’s first-ever pilot beaver dam building project.

 

  • Local Texas Stream Team water quality citizen scientists conducted 157 monitoring events. They tested for pH, dissolved oxygen, temperature, and other parameters while contributing valuable field observation data.
  • As part of the 2022 City Nature Challenge in April, 681 volunteers made 11,750 observations of 1,976 wildlife and plant species within our watershed, providing essential data for helping species of greatest conservation need. Want to submit your observations? Download the FREE iNaturalist app and join the San Antonio River Watershed project.

A map of the many observations made in the San Antonio River Watershed during the 2022

A map of many observations made in the San Antonio River Watershed during the 2022 CNC.

  • Over 600 River Warriors and other local groups have removed thousands of pounds of trash on land and water. Just this last year, they documented and tagged 27,904 pieces of litter on the Litterati app.
  • River Warriors spent over 2,500 hours of volunteer time this year, sporting huge smiles and wonderful camaraderie.

2022 Volunteer Appreciation Mixer and Awards

At the 2nd Annual River Symposium Volunteer Appreciation Mixer this September, we celebrated our passionate and dedicated volunteers and their stewardship of local creeks and the San Antonio River. General Manager of the River Authority Derek Boese presented the 2022 Champion Awards to River Warrior volunteers who not only dedicated their time and effort to various projects but also took on leadership roles this year.

Volunteer Mixer

 

Champion Water Quality Citizen Scientist Award

Lissa Martinez, Scott Rippeth, Rachel Cywinski, and Raymond Kinsel contributed many hours monthly to test for water quality in our creeks and rivers and helped with identifying and training new monitors.

Invasive Apple Snail Removal Champion Award

(Below) David Mullins single-handedly collected 1,825 snails and 1,483 egg casings in the last four months.

Volunteer counts Apple Snail collection.

Champion Beaver Dam Builder Award

Jim Funk, Lynda Chew, Tina Morgan, Martha Camacho, Terry Glaser, Darrell Maatsch, Mike Stovall, Melissa Marsh, John Tully, Jeremy Tometczak, and Marion Mulligan-Tyler won this award. These Warriors showed up monthly to the Medina River Natural Area (MRNA), where they hiked one mile into the deep brush to build intricate beaver dams. These structures help reduce erosion issues as part of a new pilot project at MRNA.

iNaturalist Champion Award

Peter Hernandez co-led the effort in training community members to contribute valuable bio-diversity data through the iNaturalist citizen science app.

Paddling Crew Champion Award

Cheryl Wallek assisted in building a kayak crew to support our litter pickup initiative from the water.

The newly formed River Warrior Paddling Crew helps clear litter from local creeks and the San Antonio River.

 

Champion Litter Picker Award

Robert Gonzalez is a Paddling Crew member who works tirelessly to collect trash along the waterways every time he goes for a paddle on the San Antonio River.

Litterati Champion Award

Noah Cantu recorded data on a whopping 6,012 pieces of litter on the Litterati app, becoming the top contributor to this litter data collection effort.

Noah Cantu receives award for most litter collections using Litterati

Noah Cantu (right) with Derek Boese, General Manger of the River Authority.

Champion River Warrior Volunteer Family Award

These families were recognized for contributing many hours of volunteer support at our agency-wide events.

  • Yvonne and Armando Carmona
  • Tom, Kareen, Julia, and Carol Luna Strickler
  • Barbara and Carl Scheib

Champion Business Volunteer Partner Award

JPMorgan Chase was recognized as our top corporate volunteer partner for their assistance with litter clean-ups, iNaturalist challenges, and engagement in other sustainability initiatives.

River Warriors after a successful clean up effort

 

Be River Proud Earth Week, 2022 Litterati Challenge Champion Award

This year the Alamo Area Master Naturalists won the Earth Week Litterati Challenge by documenting 2,238 pieces of litter in April of 2022. They received 25 kayak vouchers and a trash trophy created by local artist Gary Sweeney, who made the art piece with rubbish collected locally from the Mission and Museum Reaches. During this challenge, 63 members of participating organizations documented and tagged a whopping 8,940 pieces of litter.

River Warriors receive coveted litter award

Minna Paul, Education and Volunteer Engagement Coordinator at the River Authority, and Frates Seeligson, Executive Director of the San Antonio River Foundation present the trash trophy to Alamo Area Master Naturalist chapter liaisons Cheryl Wallek, Peter Hernandez, and Christopher Fullerton.

The River Authority is forever grateful to receive the unwavering support and dedication from many community volunteers and their families. We recognize their contributions toward building a community that cares and works together toward our mission of safe, clean, and enjoyable creeks and rivers!


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River Reach is a quarterly, 12-page newsletter that is designed to inform the San Antonio River Authority’s constituents about the agency’s many projects, serve as a communication vehicle for the board of directors and foster a sense of unity and identity among the residents of Bexar, Wilson, Karnes, and Goliad counties.

If you wish to be placed on the mailing list for River Reach, please contact us or complete the form.

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Alerts

Mission Reach Area Maintenance

Mission Reach Area Maintenance

*MARCH 2026 UPDATE*

Ongoing stem-density maintenance is currently taking place in this area. Crews will be working Monday through Friday during daytime hours. We appreciate your patience as we complete this important work to maintain and enhance the park for everyone to enjoy.

When: Beginning October 20, 2025 through Spring 2026
What: Crews will be performing stem-density removal and related vegetation maintenance along sections of the Mission Reach to help manage flood risk and protect surrounding infrastructure. Some trails or segments may be closed temporarily while work is underway.
Why: Removing excess stems that naturally establish along the river helps maintain stormwater conveyance, reduces flood risk, and protects public infrastructure while allowing grassland and native vegetation to recover and thrive.
What to expect:

  • Limited trail closures and intermittent work zones.
  • Crews and equipment working near the riverbanks during daytime hours.
  • Parking areas remain open, but visitors may see signage and temporary barriers.

Questions? Call the San Antonio River Authority at (210) 227-1373 or visit https://www.sariverauthority.org/services/river-health/ecosystems/.

Thank you for your patience while we keep the Mission Reach safe, clean, and enjoyable.

San Pedro Creek Culture Park

The east bank trail along San Pedro Creek will be temporarily closed between the upper trail at Cameron St. and the lower trail at two access points.

Closure details:

  • The first closure will impact the connector from the upper trail near West Houston St. to the south lower San Pedro Creek trail.
  • Once work at this location is complete and the trail reopens, construction will shift to the second closure area between the upper and lower trails on the opposite side of the green space.

Please follow posted signage and plan alternate routes. We appreciate your patience as this work is completed.

Closed areas around San Pedro Creek Culture Park

The Brackenridge Trail

Trail Lighting Notice – Brackenridge Park Trail

Due to an electrical issue, lighting is currently out along the north portion of the trail, from the Josephine Street inlet to just past Highway 281 within the Brackenridge Park Trail. Our team is actively working to correct the issue and expects repairs to be completed by the end of business tomorrow.

We apologize for any inconvenience this may cause and appreciate your patience as we work to restore lighting. Please use caution when traveling through this area, especially during evening hours.

Trail Closure Alert – Calder Alley, San Pedro Creek

Maintenance work will be done in Calder Alley starting Wednesday, September 18, 2025.

  • Trails will remain open during this work.
  • One bench at a time will be temporarily barricaded while improvements are completed.
  • There may be occasional contractor pickups in the area.

We appreciate your patience as we continue to maintain and improve San Pedro Creek for all to enjoy!

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. 

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.

Goliad Paddling Trail Alert

NOTICE: HWY 59 Landing Site Closed

Due to TxDOT construction on the HWY 59 Bridge, the HWY 59 landing site is closed until further notice. However, the Goliad Paddling Trail remains open, and paddlers can still access the river at the Riverdale, Ferry Street, and Goliad State Park landings.

Please plan accordingly and check back for updates.

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