River Warriors Kick-Off 2024 with Inspiring New Events

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Group of River Warriors after cleanup event

The San Antonio River Authority’s (River Authority) River Warriors are gearing up for a busy and fulfilling year of stewardship and service! In December 2023, we welcomed our new Volunteer Engagement Coordinator – Samantha Villanueva, who comes from a background in volunteer management and environmental education.

Samantha Villanueva

Samantha Villanueva

The River Warriors have held two group clean-ups already this year in January at Roosevelt Park and Espada Dam near the San Antonio River, where volunteers picked up over 1,000 pounds of trash!  This was crucial in helping with the litter problem as a result of recent rain storms which contributed significant amounts of non-point source pollution.

Group of River Warriors after cleanup event

2024 Basura Bash

Basura Bash - River and Waterway Clean-up

At the River Authority, we show our creeks and rivers love and appreciation by keeping them safe, clean, and enjoyable. In celebration of Valentine’s Day, we are celebrating the San Antonio River and its tributaries by supporting the 2024 Basura Bash on February 17!

Led this year by our friends at River Aid San Antonio, Basura Bash is a city-wide clean-up event that is supported organizations across in San Antonio. Currently, we are expecting 75 volunteers to help clean up with the River Warrior crew at Six Mile Creek!

River Warriors clean up creeks and rivers

River Warrior Volunteers cleaned Six Mile Creek in 2022.

If you are interested in showing your love for our San Antonio creeks and rivers by participating in the Basura Bash at other San Antonio tributaries, visit http://basurabash.org.

2024 City Nature Challenge

Another exciting event we are preparing for this year is the City Nature Challenge, a global citizen science event in which different areas compete to see who can make the most iNaturalist observations. iNaturalist is a platform that can be used by people who would like to document and identify plant and animal species found in their area. The observations made, either by photo or video, are then identified by the app’s AI or by a species expert in the area and added to the iNaturalist database. This citizen science tool helps researchers understand the abundance of a species in an area and can provide other useful information as well!

Hand holds phone with butterfly image on screen

The City Nature Challenge lasts from April 26 to April 29, and we are competing as part of the San Antonio Metropolitan Area. Anyone in the city is encouraged to get outside and document as many observations as possible using your phone camera and the iNaturalist app! Last year, we successfully beat out Travis County for the 3rd place in Texas spot. This year, our goal is clear: surpassing both Dallas-Fort Worth and Houston-Galveston for 1st place!

For more information regarding the City Nature Challenge, visit the San Antonio Metro Area website.

If you are interested in participating in the City Nature Challenge and would like to learn more about iNaturalist and how to use it, our resident iNaturalist expert, Peter Hernandez, will be hosting virtual training on February 21 and March 13. Guided walks will be held the Saturday after each of these virtual trainings: Escondido Creek Parkway on February 24 and Branch River Park on March 16. If you would like more information on these trainings, visit our Facebook page or contact us.

Walking on the Wild Side with Nature 2024 Series

2024 Earth Month Litter Challenge

That’s right – it’s an entire month this year! In 2024, the River Authority, along with the River Foundation, is hosting an Earth Month Litter Challenge, where participating companies and organizations will participate in a friendly competition to see which team can collect the most litter throughout April. If you are interested in hosting a team or want more information, please contact us at the email below.

Join The Warriors

The River Authority and our River Warriors are excited for a new year full of exciting volunteer opportunities, including, but not limited to, apple snail removal training, Texas Stream Team water quality monitor training, monthly clean-ups, docent training, and much more. Please visit our website!

River Warriors promotion card

Related Articles

Alerts

Mission Reach Area Maintenance

Update (December 2025):
Crews will be moving south of Concepcion Park towards the baseball fields around the Mission Road area. The trail in this section will be closed the morning of Wednesday 12/10 and is expected to reopen the later next week. 

Work will also continue at the current location near mile marker 8.2 for the remainder of the week, where crews will be cleaning the area and hauling off chips and debris. This section of the trail will remain open

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.

Stem Density work 12.10.2025-12.19.2025

Trail Closure – Mission Reach Area

The Acequia Park trailhead entrance at Probandt Street to the Bexar County Public Works Department building’s trailhead will be closed through December 23rd due to construction. We apologize for the inconvenience.

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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