USGS Streamgage 11491450
Irving Creek near Lenz, OR
Irving Creek near Lenz, OR is USGS streamgage 11491450 in Oregon, monitoring river discharge in hydrologic subbasin 18010201. It drains a watershed of about 1 square miles. Discharge records at this site go back to 2024. Typical flow runs near 1 cfs in July and 1.6 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Oregon
- Drainage area
- 1 sq mi
- Gauge elevation
- 4,617 ft
- Subbasin (HUC-8)
- 18010201
- Coordinates
- 42.95167, -121.45906
- USGS site number
- 11491450
- Records begin
- 2024-05-06 (2 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 2 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 | — | 1.1 | — | |
| February | — | 1.1 | — | |
| March | — | 1.4 | — | |
| April | — | 1.6 | — | |
| May | — | 1.4 | — | |
| June | — | 1.1 | — | |
| July | — | 1 | — | |
| August | — | 1.1 | — | |
| September | — | 1 | — | |
| October | — | 1.1 | — | |
| November | — | 1.1 | — | |
| December | — | 1 | — |
All values in cubic feet per second (cfs).
Common questions
- When does Irving Creek near Lenz, OR normally run highest?
- April, on the long-term record. The median daily flow that month is about 1.6 cfs, against 1 cfs in July, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- How long has Irving Creek near Lenz, OR been measured?
- Discharge records at USGS site 11491450 begin in 2024, about 2 years, covering roughly 817 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Irving Creek near Lenz, OR?
- The gauge sits at 42.95167, -121.45906, in Oregon, in hydrologic subbasin 18010201, at an elevation of about 4,617 feet, draining roughly 1 square miles.
- Can I use Irving Creek near Lenz, OR 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.