Onion Creek at US 183
Texas — Water Level & Flood Stage
Located in Travis County, Texas on the Onion Creek. Live water level data from USGS gauge 08159000, 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
27 ft
Moderate Flood
23 ft
Minor Flood
17 ft
Action Stage
15 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
54 ft
Height of instruments inside gauge house.
47 ft
Catastrophic flooding in neighborhoods of Onion Creek, with depths of 8 to 10 feet in Timber Creek, 10 to 15 feet in Onion Creek Forest, 10 to 12 feet in Yarrabee Bend, 2 feet in Onion Creek Plantations, 10 feet on the southeast side of Silverstone, 6 to 10 feet in Perkins Valley, and 5 to 10 feet in Onion Creek Club. The US Highway 183 bridge over Onion Creek and McKinney Falls Parkway are flooded. Major flooding of the south side of ABIA, including portions of FM 973. USGS 500 year storm floodplain.
41 ft
Major flooding in Onion Creek neighborhoods, with depths up to 6 feet in Onion Creek Plantations, 6 to 9 feet in Onion Creek Forest, 6 to 8 feet in Yarrabee Bend, 7 feet on the east side of Silverstone, and 4 to 11 feet in Timber Creek near Pearce Lane. Onion Creek Club, Perkins Valley neighborhood, Pleasant Valley Road, Pearce Lane, FM 973, Burleson Road, and Emma Browning Avenue are flooded. The south access to ABIA is flooded as is the South Austin WWTP. Flood of record is 40.15 on October 31, 2013.
38 ft
Major flooding in Onion Creek neighborhoods with depths up to 5 feet in Onion Creek Forest, 3 to 10 feet in Timber Creek near Pearce Lane, 4 feet in Onion Creek Plantations, 1 to 2 feet in Perkins Valley, and 2 to 3 feet in Yarrabee Bend. Access to the Onion Creek neighborhoods is now limited. Flooding of the South Austin WWTP is imminent. Much of FM 973 and parts of Burleson Road are flooded. The 6100 block of East William Cannon Drive and Pleasant Valley Road are flooded.
35 ft
Major flooding. Water enters homes in portions of several Onion Creek neighborhoods with 2 to 5 feet of water in parts of Onion Creek Plantations, Onion Creek Forest, Yarrabee Bend, Silverstone, and Perkins Valley. Up to 8 feet of water impacts homes in Timber Creek near Pearce Lane. FM 973, Burleson Road, William Cannon Drive, and Pleasant Valley Road are flooded, and the south Access to ABIA is blocked.
32 ft
Major flooding begins to flood the homes lower portions of Timber Creek, and the homes along Pinhurst Drive and Champions Lane. Vehicle access becomes limited to portions of Onion Creek Plantations, and street flooding begins to impact the Perkins Valley subdivision. Major portions of Brandt Road, Bluff Springs Road, and William Cannon Drive are flooded. Richard Moya Park is severely flooded, and water is spilling onto Burleson Road.
29 ft
Major flooding impacts several neighborhoods along Onion Creek. Homes on Pinehurst Drive and Champions Lane are threatened by flood waters. Portions of Timber Creek, Onion Creek Forest, Onion Creek Plantations, and Yarrabee Bend South subdivisions are flooded. Major portions of Bluff Springs Road, East William Cannon Drive and Brandt Road near Onion Creek are flooded, and Burleson Road begins to flood near Richard Moya Park.
28 ft
Major flooding impacts several neighborhoods along Onion Creek. Homes on Dixie Drive near Foyt Ct. are close to flooding. Homes on Pinehurst Drive and Champions Lane are surrounded by flood waters, but structures are not expected to be flooded at this level. Low portions of Timber Creek, Onion Creek Forest, Onion Creek Plantations, and Yarrabee Bend South subdivisions are flooded. Portions of Bluff Springs Road, East William Cannon Drive and Brandt Road near Onion Creek are flooded and impassable.
27 ft
Major flooding impacts several neighborhoods along Onion Creek. The Timber Creek neighborhood is starting to flood, and lowland areas in the Onion Creek Forest, Onion Creek Plantations, and Yarrabee Bend South subdivisions begin to flood. The 6100 block of East William Cannon Drive, and the 3100 block of Brandt Road may be flooded and impassable. Bluff Springs Road near the bridge at Onion Creek may also begin to flood. Much of Richard Moya Park is flooded.
23 ft
Moderate lowland flooding is well into the flood plain. Richard Moya Park on Burleson Road is flooded. Water is out of banks near Champions Lane, but no residential structures in neighborhoods along Onion Creek are impacted at this level.
20 ft
Minor lowland flooding threatens secondary roads, but neighborhoods along Onion Creek are not affected. Upstream, the 12000 block of Old San Antonio Road is likely flooded and impassable.
17 ft
The 12000 block of Old San Antonio Road upstream may be flooded. Neighborhoods along Onion Creek are not affected.
15 ft
Flow exceeds lowest sections of the banks. Low street crossings and bridges are threatened.
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 31, 2013 | 40.15 ft | 135,000 cfs |
| Oct 31, 2013 | 40.15 ft | 135,000 cfs |
| Oct 30, 2015 | 39.22 ft | 120,284 cfs |
| Oct 30, 2015 | 39.22 ft | 120,284 cfs |
| Sep 8, 1921 | 38 ft | 138,000 cfs |
Flood Inundation Map
NOAA has mapped what areas flood at different water levels for this gauge. View the interactive flood inundation map →
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 at US 183?
The Onion Creek at US 183 gauge is maintained by USGS (site 08159000) 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 at US 183?
The NWS-defined flood stage for Onion Creek at US 183 is 17 feet. Action stage begins at 15 feet. Moderate flooding starts at 23 feet, and major flooding at 27 feet.
How do I get alerts when Onion Creek rises?
Download StormCast free on Google Play, go to River Gauges, and add Onion Creek at US 183 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 at US 183 gauge located?
The gauge is located in Travis County, Texas at coordinates 30.1778°N, 97.6883°W. USGS site number: 08159000. 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.