USGS Streamgage 14138900
North Fork Bull Run River near Multnomah Falls, OR
North Fork Bull Run River near Multnomah Falls, OR is USGS streamgage 14138900 in Oregon, monitoring river discharge in hydrologic subbasin 17080001. It drains a watershed of about 8 square miles. Discharge records at this site go back to 1965. Typical flow runs near 19.5 cfs in July and 75.5 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Oregon
- Drainage area
- 8 sq mi
- Subbasin (HUC-8)
- 17080001
- Coordinates
- 45.49425, -122.03589
- USGS site number
- 14138900
- Records begin
- 1965-08-01 (61 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 60 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 | 33 | 79.4 | 291.9 | |
| February | 32.4 | 68.1 | 230.2 | |
| March | 36.3 | 70.9 | 182 | |
| April | 43.9 | 75.5 | 156.5 | |
| May | 30.8 | 61.9 | 135.2 | |
| June | 19.4 | 36.4 | 93.6 | |
| July | 13.4 | 19.5 | 35.6 | |
| August | 10.6 | 14.2 | 23 | |
| September | 10.1 | 14.4 | 38.1 | |
| October | 11.7 | 26 | 99.6 | |
| November | 24.5 | 72.6 | 237.2 | |
| December | 31.6 | 77.7 | 309.6 |
All values in cubic feet per second (cfs).
Other gauges in this subbasin
- South Fork Bull Run River near Bull Run, OR
- Bull Run River below Bull Run Reservoir 2, near Bull Run, OR
- Bull Run River near Bull Run (River Only), OR
- Bull Run River near Bull Run, OR
- Little Sandy River near Bull Run, OR
- Sandy River below Bull Run River, near Bull Run, OR
- Kelly Creek at Kane Road near Gresham, OR
- Beaver Creek at Troutdale, OR