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San Antonio River Authority

Downstream Predictive Flood Modeling

Downstream Predictive Flood Modeling

The River Authority completed the predictive flood modeling system for Bexar County in 2021. The Downstream Predictive Flood Modeling project intends to extend the coverage of that system to Wilson, Karnes and Goliad Counties. The predictive flood modeling system provides real-time operational forecasting, early warnings, and important situational awareness during emergency response operations. River Authority staff plan to coordinate efforts for this project with staff from Wilson, Karnes and Goliad Counties as well as other key stakeholders.

Project Details:

  • Environmental
  • Active
  • Adopted Budget: $261000
  • Start Date: 2021-09-01
  • End Date: 2024-06-30
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Alerts

Park Closure: Safety Notice

July 14, 2026

Safety Notice: All lower sections of River Crossing Park, Graytown, and Helton have been closed to due to flooding. They will remain closed until further notice.

Stay Weather‑Aware

July 14, 2026

We are experiencing heavy rains and thunderstorms over the next few days and are currently under a flood watch. Heavy rains in short time spans may result in high water on roads and temporary closures at low water crossings.

Before heading out, residents are encouraged to check SARiverFlood.org or their local county flood website for real‑time roadway conditions:

These sites provide up‑to‑date information from flood‑monitoring sensors across the region. Real‑time updates are available 24/7 to help you stay informed as conditions change.

Please use caution when traveling and plan routes accordingly.

SASPAMCO Paddling Trail Temporarily Closed

June 30, 2025

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

June 30, 2025

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.

Current Conditions

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