San Antonio River at Loop 410

1. 30.00 ftDrainage from above loop 410 and Brooks City Base cuts streets and areas below Loop 410 in the San Antonio River flood plain off. Several homes have a few feet of water in them.
2. 27.00 ftThree residences below Loop 410 on the left bank flood. Roads into the area are flooded and dangerous.
3. 26.00 ftMajor flooding reaches slabs of residences on the left bank below Southeast Loop 410. Roads and streets near the San Antonio River are severely flooded and very dangerous.
4. 23.00 ftModerate lowland flooding of lowest roads and bridges in the flood plain make auto traffic very dangerous. Lowest homes below Loop 410 in the left flood plain are threatened.
5. 20.00 ftModerate lowland flooding of roads and streets below Brooks City Base and in the flood plain near Loop 410 makes auto travel in the flood plain very dangerous.
6. 12.00 ftMinor lowland flooding extends into low areas of the flood plain with no significant impact.

Most recent crests

• June 12, 2025: 25.10 ft
• October 14, 2021: 15.68 ft
• October 9, 2018: 12.61 ft
• June 2, 2016: 27.43 ft
• May 24, 2015: 27.60 ft
• April 25, 2015: 18.51 ft
• May 25, 2013: 34.21 ft
• October 17, 1998: 32.57 ft
• June 21, 1997: 16.74 ft
• September 15, 1996: 15.07 ft

• DownstreamSan Antonio River at Elmendorf
• Salado Creek at Loop 13
• Medina River at San Antonio US 281S
• San Antonio River
• San Pedro Creek
• Leon Creek at I-35S near San Antonio
• Medina River at Somerset
• Olmos Creek at Dresden Drive

Forecasts by the West Gulf River Forecast Center. Forecasts are not available. Only observed stages are available for this point. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.