Onion Creek near Driftwood
Texas — Water Level & Flood Stage
Located in Hays County, Texas on the Onion Creek. Live water level data from USGS gauge 08158700, updated every 15 minutes.
Current Water Level
Gage Height
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Streamflow
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Last Reading
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Flood Stages
Major Flood
13 ft
Moderate Flood
7 ft
Minor Flood
5.5 ft
Action Stage
5.5 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
25 ft
Major flooding is near the USGS survey 1:25 year level. Homes in a mobile home park downstream above William Cannon Drive in Austin will flood. Roads and bridges are severely flooded and very dangerous from the headwaters to the Colorado River.
23 ft
Major flooding makes roads and bridges very dangerous to auto traffic. A mobile home park downstream above William Cannon Drive in Austin will be threatened. Livestock should be moved from vulnerable areas of the flood plain.
20.5 ft
Major flooding is near the USGS survey 1:10 year level. Livestock are threatened in the flood plain. Roads and bridges are severely flooded and very dangerous from the headwaters to the Colorado River. A mobile home park downstream above William Cannon Drive in Austin will be threatened.
18 ft
Major flooding is well into the flood plain. Roads and bridges from the headwaters to the Colorado River in Austin are severely flooded and very dangerous. The two Ranch to Market Rd 150 crossings are under 13 feet of water.
15 ft
Major flooding is near the USGS survey 1:5 year level. Flow is ten feet over the two Ranch to Market Rd 150 crossings and well into the flood plain, threatening livestock. Roads and low bridges are flooded and dangerous from the headwaters to the Colorado River.
13 ft
Major flooding cuts off livestock in the flood plain from the headwaters to above I-35. Flow is eight feet over the two Ranch to Market Rd 150 crossings. Widespread severe flooding of secondary and primary roads and bridges makes driving very hazardous.
10 ft
Moderate lowland flooding is five feet over the two Ranch to Market Rd 150 crossings and well into the flood plain.
8.6 ft
Moderate flooding reaches the USGS survey 1:2 year flood level. Flow is three feet over the two Ranch to Market Rd 150 crossings.
7 ft
Moderate lowland flooding makes secondary roads, low bridges and low water crossings very dangerous. The two Ranch to Market Rd 150 crossings may be under several feet of fast flowing water.
5.5 ft
Minor flooding makes several secondary roads dangerous, including the two Ranch to Market Rd 150 crossings over Onion Creek.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Oct 30, 2015 | 26.39 ft | 16,723 cfs |
| Oct 30, 2015 | 26.39 ft | 16,723 cfs |
| May 4, 2019 | 26.3 ft | 16,665 cfs |
| May 4, 2019 | 26.3 ft | 16,665 cfs |
| Oct 16, 1998 | 25.1 ft | 15,800 cfs |
About This Gauge
Get Flood Alerts for Onion Creek
StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.
Frequently Asked Questions
What is the current water level of Onion Creek near Driftwood?
The Onion Creek near Driftwood gauge is maintained by USGS (site 08158700) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.
What is flood stage for Onion Creek near Driftwood?
The NWS-defined flood stage for Onion Creek near Driftwood is 5.5 feet. Action stage begins at 5.5 feet. Moderate flooding starts at 7 feet, and major flooding at 13 feet.
How do I get alerts when Onion Creek rises?
Download StormCast free on Google Play, go to River Gauges, and add Onion Creek near Driftwood to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category — even when your screen is off.
Where is the Onion Creek near Driftwood gauge located?
The gauge is located in Hays County, Texas at coordinates 30.0828°N, 98.0075°W. USGS site number: 08158700. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Onion Creek
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Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time.