USGS Streamgage 14147500
N Fk of M Fk Willamette River near Oakridge, OR
N Fk of M Fk Willamette River near Oakridge, OR is USGS streamgage 14147500 in Oregon, monitoring river discharge in hydrologic subbasin 17090001. It drains a watershed of about 246 square miles. Discharge records at this site go back to 1909. Typical flow runs near 260.6 cfs in July and 1,096 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Oregon
- Drainage area
- 246 sq mi
- Subbasin (HUC-8)
- 17090001
- Coordinates
- 43.75679, -122.50533
- USGS site number
- 14147500
- Records begin
- 1909-10-01 (117 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 85 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 | 394.2 | 881.8 | 2,464.2 | |
| February | 472.3 | 930.6 | 2,259.3 | |
| March | 534.9 | 926.5 | 1,982.6 | |
| April | 583.9 | 1,096 | 1,809.3 | |
| May | 467.5 | 959 | 1,634.2 | |
| June | 295.8 | 567.9 | 1,127.3 | |
| July | 184.2 | 260.6 | 420.2 | |
| August | 130.9 | 169.4 | 233.5 | |
| September | 119.1 | 151.7 | 218.1 | |
| October | 118 | 177 | 464 | |
| November | 170.8 | 554.8 | 1,920.4 | |
| December | 283.5 | 863.6 | 2,602.3 |
All values in cubic feet per second (cfs).
Other gauges in this subbasin
- MF Willamette River below N Fork, near Oakridge, OR
- Lookout Point Dam Tailwater near Lowell, OR
- MF Willamette River below Lookout Point Dam near Lowell, OR
- Dexter Dam Tailwater at Dexter, OR
- Middle Fork Willamette River near Dexter, OR
- Fall Creek above Tiller Creek, near Lowell, OR
- Fall Creek above North Fork, near Lowell, OR
- Winberry Creek near Lowell, OR