River TX

San Antonio River

Texas • 28.5319, -97.0434

Length

362 mi

582 km

Elevation

683′ → 15′

667 ft drop

Stream Order

Large River

Slope

0.03%

1.8 ft/mi

Drainage

3,618 mi²

9,371 km²

Avg Flow

-- cfs

1.8 mph velocity

Path to Mouth

255 mi

411 km to ocean

Classification

Tributary

Mid-reach

Elevation Profile

Data from USGS & NOAA for informational purposes only. More

Monitor

Water Level Gauges on San Antonio River

There are 8 USGS water level monitoring stations on San Antonio River providing real-time flow and stage data.

There are 18 boat ramps, launches, and public access points on San Antonio River.