USGS Streamgage 14209000
Oak Grove Fork above Powerplant Intake, OR
Oak Grove Fork above Powerplant Intake, OR is USGS streamgage 14209000 in Oregon, monitoring river discharge in hydrologic subbasin 17090011. It drains a watershed of about 124 square miles. Discharge records at this site go back to 1909. Typical flow runs near 338.3 cfs in July and 587.9 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Oregon
- Drainage area
- 124 sq mi
- Subbasin (HUC-8)
- 17090011
- Coordinates
- 45.07123, -121.94063
- USGS site number
- 14209000
- Records begin
- 1909-05-01 (117 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 116 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 | 329.6 | 523 | 848.7 | |
| February | 328.8 | 521.4 | 798.3 | |
| March | 362.6 | 522.4 | 797.4 | |
| April | 407.2 | 587.9 | 865.1 | |
| May | 372.2 | 618.3 | 1,036.6 | |
| June | 296.6 | 461.7 | 802 | |
| July | 260.9 | 338.3 | 472.9 | |
| August | 249 | 316.5 | 410.9 | |
| September | 257.4 | 338.3 | 469.1 | |
| October | 266 | 357.8 | 524.9 | |
| November | 295.8 | 437.7 | 637.8 | |
| December | 315 | 504.6 | 786 |
All values in cubic feet per second (cfs).