Stem Density Removal Efforts Begin Along Mission Reach to Maintain Flood Control & Preserve Project Restorations

Written by:

Posted on:

Categories:

Share:

Facebook
Twitter
LinkedIn
Email

Get The Latest:

Join our print or digital newsletter to be informed about the agency’s many projects and other news.

Crews working on natural vegetation

Last Updated on January 4, 2024

(SAN ANTONIO,TX) – Beginning this week, teams of San Antonio River Authority (River Authority) experts will begin stem density removal efforts along the Mission Reach in order to maintain the flood conveyance requirements as set forth by the U.S. Army Corps of Engineers (USACE) and the Federal Emergency Management Agency (FEMA). The effort is slated to last through the end of 2023, and will focus on three stretches of the San Antonio River Basin: from Mission Road to Roosevelt Road; Hot Wells to Padre Park; and Acequia Park to Bergs Mill.

“These stem density efforts are a routine part of the preservation and flood control efforts associated with supporting and maintaining the Mission Reach ecosystem for all to enjoy–humans and wildlife alike,” said Tommy Mitchell, Manager of Watershed & Park Operations for the River Authority. “Although seemingly counterintuitive, stem removal is actually essential to ensuring proper flow of flood water, supports diversity of tree species and ultimately, helps keep our residential, migratory, and wildlife communities safe.”

Trees originally planted as part of the ecosystem restoration project will be preserved, while additional “volunteer” trees and woody vegetation that arrived since the opening of the project will be mulched. The River Authority’s engineering staff utilizes the most up-to-date floodplain maps along with other engineering software and on-the-ground evaluations to review the vegetation zones and update stem density values for stem count per acre that must be achieved to maintain the project’s top priority, which is flood protection.

During the removal process, trail access will be intermittently impacted. All material removed during the effort will be mulched to support grassland restoration, and roots will remain in place for bank stabilization.

For additional information about annual stem density removal efforts, visit sariverauthority.org.

Related Articles

Alerts

Park Closure Notice: Trueheart Ranch

Unfortunately, Trueheart Ranch Nature Park (14984 Blue Wing Rd, San Antonio, TX 78221) is closed until further notice due to recent vandalism. We’re working to assess and repair the damage to ensure the park is safe and welcoming for everyone. Thank you for your understanding—updates will be shared as soon as we have them.

Graytown Park Parking Lot Construction Notice 

Construction Timeline: April – October 2025 (estimated)

Improvements are coming to Graytown Park! Parking lot construction will begin in April, and we appreciate your patience as we work to enhance the park for all visitors.

Temporary Closures & Impacts:

  • Upper parking area, pavilion, and restrooms will be CLOSED during construction. Temporary restroom facilities will be provided.
  • Park and river access will be CLOSED Monday–Friday from 8 AM – 5 PM (no access during these hours).

We encourage visitors to plan accordingly and check back for updates as the project progresses. Thank you for your support!

Stay Updated: Follow us on social media for the latest updates.

Trail Closure – San Pedro Creek Culture Park

* Trail temporarily closed from 5/1/2025 until 9/1/2025.

Due to adjacent construction work, the San Pedro Creek Trail on the west side of the creek will be closed from the access
point at W. Nueva Street to Dolorosa Street until further notice. Alternate route with ADA access is on the east side of the creekSan Pedro Creek Culture Park Trail Closure

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.

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.

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. 

River Reach Newsletter and Blog Signup

River Reach is offered as a printed, physical mailing to your residence or business. The Blog is a weekly electronic email with news and updates in order to be more environmentally conscious. Please fill out the form below and indicate your preferred method of delivery.

By submitting this form, you are consenting to receive marketing materials from: San Antonio River Authority, 100 East Guenther St., San Antonio, TX, 78204, US. You can revoke your consent to receive emails at any time by using the SafeUnsubscribe® link, found at the bottom of every email. Emails are serviced by Constant Contact. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.