Boca Reservoir, CA
River level and flood forecast · Nevada County
The river is 34.7 ft below flood stage (5605 ft).
Flow: 170 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 4 PM. Forecasts change as rain falls and as upstream water arrives.
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An email when the National Weather Service forecasts Boca Reservoir to flood, when it floods, and when it's over.
Flood stages
| Major flood stage | 5607 ft |
| Moderate flood stage | 5606 ft |
| Flood stage | 5605 ft |
| Action stage | 5604.5 ft |
| Record crest (December 23, 1955) | 5605.55 ft |
What floods at each level
From the National Weather Service, highest first.
- 5612 ftCrest of dam...
- 5605 ftMaximum water surface elevation/Upper limit of flood control. 40870 acre-feet.
- 5596.4 ftLower limit of flood control elevation; 32870 af.
- 5589 ftSpillway crest elevation, 26650 acre-feet.
- 5521 ftTop of dead storage; top elevation of outlet works. 240 acre-feet.
- 5512 ftStreambed at dam axis. Zero storage.
Highest crests on record
- 5605.55 ft — December 23, 1955
- 5605.35 ft — July 24, 1975
- 5605.25 ft — June 15, 1969
- 5605.18 ft — June 1, 1963
- 5605.18 ft — May 31, 1960
Recent crests: 5605.35 ft (July 24, 1975) · 5605.1 ft (May 1, 1973) · 5605.25 ft (June 15, 1969) · 5605.1 ft (July 15, 1967) · 5605.18 ft (June 1, 1963)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (BCVC1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.