Pedernales River at Fredericksburg
Texas — Water Level & Flood Stage
Located in Gillespie County, Texas on the Pedernales River. Live water level data from USGS gauge 08152900, 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
32 ft
Moderate Flood
25 ft
Minor Flood
22 ft
Action Stage
12 ft
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
40 ft
Major flooding of primary and secondary roads and bridges in the headwaters above Fredericksburg is very dangerous. The bridge floor of Highway 87 floods. Hundreds of livstock are cut off and potentially drowned Major flooding downstream in LBJ National Park damages the Junction School House, the Jordan House, fencing, signs and roads.
37 ft
Flow reaches the slab elevation of the lowest buildings below the gauge and the south approach to the Highway 87 bridge. Secondary and primary roads and bridges flood in the headwaters above Fredericksburg. Major flooding downstream in LBJ National Park near Stonewall damages buildings, signs, fencing and roads. Hundreds of livestock are cut off and potentially drowned.
36 ft
Major flooding is near the USGS 1:25 year level. Lowest buildings near Highway 87 are threatened as well as the Highway 87 bridge approaches. Major damage occurs downsteam at LBJ National Park to signs, fences, roads and the Junction School. Widepread scouring of roads and bridges occurs from the headwaters to below Stonewall.
32 ft
Widespread major flooding of secondary and primary roads, low bridges and crossings in the headwaters above Fredericksburg make them very dangerous. Destructive flooding at LBJ National Park downstream will be ten feet over the Park Road 49 bridge at LBJ National Park. Many park signs and fences are destroyed and park roads damaged. This flow exceeds the USGS 1:10 year flood level.
29 ft
Moderate lowland flooding inundates secondary roads and bridges from the headwaters above Harper to below Stonewall. Fences and signs are destroyed in LBJ National Park at Stonewall as flow is well into the flood plain and many feet over the Park Road 49 bridge.
27 ft
Moderate lowland flooding is near the USGS 1:5 year level. Secondary roads and bridges from the headwaters above Harper to below Stonewall are flooded and dangerous. Significant damage to fences, signs, and roads occurs downstream in LBJ National Park near Stonewall.
25 ft
Moderate lowland flooding covers many secondary roads and bridges from the headwaters to Stonewall making them very dangerous to motorists. Low areas of LBJ National Park and the Park Road 49 bridge are flooded.
22 ft
Minor lowland flooding floods secondary roads and bridges from the headwaters downstream to below LBJ National Park. The Park Road 49 bridge in LBJ National Park floods. Fencing and signs are damaged in LBJ National Park.
16.6 ft
Flow exceeds the banks and is near the USGS 1:2 year level.
15 ft
Flow exceeds banks into lowest areas of the flood plain.
12 ft
Flow exceeds lowest areas of the banks.
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 |
|---|---|---|
| Aug 1, 1978 | 41.6 ft | — |
| Aug 1, 1978 | 41.6 ft | — |
| Aug 31, 1979 | 38.7 ft | — |
| Aug 31, 1979 | 38.7 ft | — |
| May 31, 1979 | 34.4 ft | 64,000 cfs |
About This Gauge
USGS Site
NWS LID
FRBT2
River
Pedernales River
County
Gillespie, TX
Coordinates
30.2203°N, 98.8694°W
Get Flood Alerts for Pedernales River
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 Pedernales River at Fredericksburg?
The Pedernales River at Fredericksburg gauge is maintained by USGS (site 08152900) 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 Pedernales River at Fredericksburg?
The NWS-defined flood stage for Pedernales River at Fredericksburg is 22 feet. Action stage begins at 12 feet. Moderate flooding starts at 25 feet, and major flooding at 32 feet.
How do I get alerts when Pedernales River rises?
Download StormCast free on Google Play, go to River Gauges, and add Pedernales River at Fredericksburg 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 Pedernales River at Fredericksburg gauge located?
The gauge is located in Gillespie County, Texas at coordinates 30.2203°N, 98.8694°W. USGS site number: 08152900. Data is provided by the U.S. Geological Survey and the National Weather Service.
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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.