Duval Ditch at SH 36 water level
Fort Bend County gauge 8350 · Duval Ditch · published on the Harris County Flood Warning System
water surface elevation, Oct 21, 2026 at 3:13 PM CDT · 2 hours ago
- Below top of bank
- 16.0 ft
- Top of bank
- 122.5 ft
- Lowest since Oct 21
- 106.51 ft
- Highest since Oct 21
- 106.52 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 | 106.51 ft | 16.0 ft |
| Oct 21, 11:00 AM CDT | 106.52 ft | 16.0 ft |
| Oct 21, 7:00 AM CDT | 106.52 ft | 16.0 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 SH 36 reads around 107 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 122.5 ft.
The bottom of the channel here sits at 106.0 ft, so the channel is roughly 16.5 ft deep at this crossing. Fort Bend County 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
duval-ditch-at-sh-36.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
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All Fort Bend County gauges: Fort Bend County water levels.