Cowarts Creek at West Castlewood Drive water level
City of Friendswood gauge 5150 · Cowarts Creek · published on the Harris County Flood Warning System
water surface elevation, Oct 21, 2026 at 3:44 PM CDT · 35 minutes ago
- Below top of bank
- 19.2 ft
- Top of bank
- 21.0 ft
- Lowest since Oct 21
- 1.79 ft
- Highest since Oct 21
- 2.30 ft
This gauge has been recorded here since October 21, 2026 (6 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 | 1.79 ft | 19.2 ft |
| Oct 21, 1:00 PM CDT | 1.87 ft | 19.1 ft |
| Oct 21, 12:00 PM CDT | 1.97 ft | 19.0 ft |
| Oct 21, 11:00 AM CDT | 2.12 ft | 18.9 ft |
| Oct 21, 10:00 AM CDT | 2.30 ft | 18.7 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 West Castlewood Drive reads around 2 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 21.0 ft.
The bottom of the channel here sits at 1.2 ft, so the channel is roughly 19.8 ft deep at this crossing. City of Friendswood 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
cowarts-creek-at-west-castlewood-drive.csv (CSV): every reading stored for this gauge since October 21, 2026, 6 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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Other gauges on Cowarts Creek
Readings from the rest of the Cowarts Creek 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 |
|---|---|---|---|
| Dixie Farm Road | 27.44 ft | 11.6 ft | Oct 21, 2026 at 3:04 PM CDT |
| Cloverfield Road | 21.75 ft | 8.0 ft | Oct 21, 2026 at 3:02 PM CDT |
USGS gauge nearby
Clear Creek near Friendswood (USGS 08077600), 1.2 mi away, read 1.55 ft at Oct 21, 2026 at 3:15 PM CDT, 10.4 ft below the NWS minor flood stage of 12.0 ft. Its zero is at 0 ft NAVD88, so it also reports water surface elevation.
All City of Friendswood gauges: City of Friendswood water levels.