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Information made possible by Fort Bend County
Sienna South/Brazos River Elevation Sensors 80307
8030 Brazos River @ Sienna South
Fort Bend County
Sensor ID 80307 803010
Sensor Type Pressure Transducer Pressure Transducer
Sensor Position Sienna South Brazos River
Installed 8/8/2024 8/8/2024
Flooding Likely 53.00' 55.00'
Flooding Possible 50.00' 52.00'
Bottom of Sienna South/Brazos River 32.00' 30.00'
Tip of Orifice 32.61' 30.31'
Measuring Plate 69.21' 69.18'
Benchmark 69.21' 69.21'
Benchmark is a brass cap located on the downstream side on top of structure.
1988 NAVD

The Sienna South/Brazos River Elevation  chart showing Sienna South/Brazos River Elevation Left series, Stream Elevation Right series.
Cross Section
Sienna South/Brazos River Elevation for sensors
Sienna South is 32.74' on 10/3/2025 3:41 PM
Brazos River is 30.28' on 10/3/2025 3:41 PM
Export to Excel
2 Days
Sensor
Reading Date
Elevation
8030710/3/2025 3:41 PM32.74'
8030710/3/2025 11:41 AM32.74'
8030710/3/2025 11:03 AM32.73'
8030710/3/2025 7:59 AM32.63'
8030710/3/2025 7:41 AM32.71'
8030710/3/2025 7:33 AM32.73'
8030710/3/2025 3:41 AM32.75'
8030710/2/2025 11:41 PM32.78'
8030710/2/2025 7:41 PM32.86'
8030710/2/2025 7:03 PM32.84'
8030710/2/2025 3:41 PM32.73'
8030710/2/2025 2:47 PM32.73'
8030710/2/2025 12:07 PM32.83'
8030710/2/2025 11:41 AM32.68'
8030710/2/2025 11:07 AM32.71'
8030710/2/2025 8:31 AM32.60'
8030710/2/2025 7:59 AM32.72'
8030710/2/2025 7:41 AM32.74'
8030710/2/2025 3:41 AM32.76'
8030710/1/2025 11:41 PM32.77'
8030710/1/2025 7:41 PM32.82'
8030710/1/2025 5:23 PM32.83'
80301010/3/2025 3:41 PM30.28'
80301010/3/2025 11:41 AM30.29'
80301010/3/2025 7:41 AM30.29'
80301010/3/2025 3:41 AM30.30'
80301010/2/2025 11:41 PM30.30'
80301010/2/2025 7:41 PM30.30'
80301010/2/2025 3:41 PM30.30'
80301010/2/2025 11:41 AM30.29'
80301010/2/2025 7:41 AM30.30'
80301010/2/2025 3:41 AM30.30'
80301010/1/2025 11:41 PM30.30'
80301010/1/2025 7:41 PM30.30'
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