Little Truckee River at Boca Reservoir
California — Water Level & Flood Stage
Located in Nevada County, California on the Little Truckee River. Live water level data from USGS gauge 10344490, updated every 15 minutes.
Current Water Level
Gage Height
Loading...
Streamflow
Loading...
Last Reading
Loading...
Flood Stages
Major Flood
5607 ft
43,000 cfs
Moderate Flood
5606 ft
42,000 cfs
Minor Flood
5605 ft
40,868 cfs
Action Stage
5604.5 ft
40,381 cfs
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
What Floods at Each Level
5612 ft
Crest of dam...
5605 ft
Maximum water surface elevation/Upper limit of flood control. 40870 acre-feet.
5596.4 ft
Lower limit of flood control elevation; 32870 af.
5589 ft
Spillway crest elevation, 26650 acre-feet.
5521 ft
Top of dead storage; top elevation of outlet works. 240 acre-feet.
5512 ft
Streambed at dam axis. Zero storage.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
Loading chart data...
Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Dec 22, 1955 | 5605.55 ft | 41,440 cfs |
| Dec 22, 1955 | 5605.55 ft | 41,440 cfs |
| Jul 23, 1975 | 5605.35 ft | 41,200 cfs |
| Jul 23, 1975 | 5605.35 ft | 41,200 cfs |
| Jun 14, 1969 | 5605.25 ft | 41,100 cfs |
About This Gauge
USGS Site
NWS LID
BCVC1
River
Little Truckee River
County
Nevada, CA
Coordinates
39.3888°N, 120.0963°W
Get Flood Alerts for Little Truckee 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 Little Truckee River at Boca Reservoir?
The Little Truckee River at Boca Reservoir gauge is maintained by USGS (site 10344490) 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 Little Truckee River at Boca Reservoir?
The NWS-defined flood stage for Little Truckee River at Boca Reservoir is 5605 feet. Action stage begins at 5604.5 feet. Moderate flooding starts at 5606 feet, and major flooding at 5607 feet.
How do I get alerts when Little Truckee River rises?
Download StormCast free on Google Play, go to River Gauges, and add Little Truckee River at Boca Reservoir 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 Little Truckee River at Boca Reservoir gauge located?
The gauge is located in Nevada County, California at coordinates 39.3888°N, 120.0963°W. USGS site number: 10344490. Data is provided by the U.S. Geological Survey and the National Weather Service.
On This River
More Resources
Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey