Brazos River at US 59 water level
City of Sugar Land gauge 4640 · Brazos River · published on the Harris County Flood Warning System
water surface elevation, Oct 21, 2026 at 3:11 PM CDT · 2 hours ago
- Below top of bank
- 42.4 ft
- Top of bank
- 70.0 ft
- Lowest since Oct 21
- 27.61 ft
- Highest since Oct 21
- 27.67 ft
This gauge has been recorded here since October 21, 2026 (3 readings so far). Its usual range and how today compares with its history appear once it has 14 days of readings.
Last 7 days
Hourly averages of readings as published. This gauge reports only when its value changes, so gaps in the line are normal.
| Time | Level | Below top of bank |
|---|---|---|
| Oct 21, 3:00 PM CDT | 27.64 ft | 42.4 ft |
| Oct 21, 11:00 AM CDT | 27.61 ft | 42.4 ft |
| Oct 21, 7:00 AM CDT | 27.67 ft | 42.3 ft |
How to read this gauge
The number above is an elevation, not a water depth. It is the height of the water surface above a fixed reference level, so US 59 reads around 28 ft even when the channel is low. What matters is the distance to the top of bank: the elevation at which water reaches the top of the channel at this location. For this gauge that is 70.0 ft.
The bottom of the channel here sits at 27.0 ft, so the channel is roughly 43.0 ft deep at this crossing. City of Sugar Land publishes the top-of-bank figure with each reading; it is their reference, not an estimate made here.
Daily highs and lows since October 21, 2026
Download the readings
brazos-river-at-us-59.csv (CSV): every reading stored for this gauge since October 21, 2026, 3 rows, updated with this page. Columns: time in UTC, time in Central, water surface elevation, top of bank, and distance below top of bank, all in feet. The source and accuracy notes below apply to the file too.
Put this gauge on your website
HOAs, MUDs, civic clubs and schools can show this gauge's latest reading on their own site. Paste this HTML where it should appear; the card updates with this page. More gauges.
Other gauges on Brazos River
Readings from the rest of the Brazos River gauge network, each at its own most recent reading. Elevations fall as the channel runs downstream, so compare the below top of bank column rather than the raw levels.
| Crossing | Level | Below top of bank | Reading taken |
|---|---|---|---|
| FM 1489 | 61.47 ft | 43.5 ft | Oct 21, 2026 at 3:29 PM CDT |
| FM 723 | 41.47 ft | 40.5 ft | Oct 21, 2026 at 3:06 PM CDT |
USGS gauge nearby
Brazos River near Sugar Land (USGS 08114100), less than 0.1 mi away, read 27.64 ft at Oct 21, 2026 at 4:00 PM CDT, 38.9 ft below the NWS minor flood stage of 66.5 ft. Its zero is at 0 ft NAVD88, so it also reports water surface elevation.
All City of Sugar Land gauges: City of Sugar Land water levels.