USGS Streamgage 10343500
Sagehen C near Truckee, CA
Sagehen C near Truckee, CA is USGS streamgage 10343500 in California, monitoring river discharge in hydrologic subbasin 16050102. It drains a watershed of about 11 square miles. Discharge records at this site go back to 1953. Typical flow runs near 3.3 cfs in July and 20.7 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- California
- Drainage area
- 11 sq mi
- Gauge elevation
- 6,330 ft
- Subbasin (HUC-8)
- 16050102
- Coordinates
- 39.43155, -120.23795
- USGS site number
- 10343500
- Records begin
- 1953-10-01 (73 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 73 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| January | 2.3 | 3.9 | 12.8 | |
| February | 2.8 | 4.4 | 13.3 | |
| March | 4 | 7.5 | 21.4 | |
| April | 7.2 | 20.7 | 46.6 | |
| May | 6.1 | 28.1 | 95.9 | |
| June | 2.4 | 11.6 | 61.7 | |
| July | 1.5 | 3.3 | 15.5 | |
| August | 1.3 | 2.2 | 5.2 | |
| September | 1.3 | 2 | 4 | |
| October | 1.6 | 2.5 | 4.8 | |
| November | 1.9 | 3.1 | 7.2 | |
| December | 2.1 | 3.5 | 11.4 |
All values in cubic feet per second (cfs).
Common questions
- When does Sagehen C near Truckee, CA normally run highest?
- May, on the long-term record. The median daily flow that month is about 28.1 cfs, against 2 cfs in September, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Sagehen C near Truckee, CA?
- It depends on the month. In January, half of days historically fall near 3.9 cfs, with the middle 80% of days between 2.3 and 12.8 cfs. The month-by-month table on this page gives the full range.
- How long has Sagehen C near Truckee, CA been measured?
- Discharge records at USGS site 10343500 begin in 1953, about 73 years, covering roughly 9,126 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Sagehen C near Truckee, CA?
- The gauge sits at 39.43155, -120.23795, in California, in hydrologic subbasin 16050102, at an elevation of about 6,330 feet, draining roughly 11 square miles.
- Can I use Sagehen C near Truckee, CA data for flood or safety decisions?
- No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.