USGS Streamgage 13073000
Portneuf River at Topaz, ID
Portneuf River at Topaz, ID is USGS streamgage 13073000 in Idaho, monitoring river discharge in hydrologic subbasin 17040208. It drains a watershed of about 576 square miles. Discharge records at this site go back to 1913. Typical flow runs near 196.5 cfs in July and 215 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Idaho
- Drainage area
- 576 sq mi
- Subbasin (HUC-8)
- 17040208
- Coordinates
- 42.62472, -112.08806
- USGS site number
- 13073000
- Records begin
- 1913-01-01 (113 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 113 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 | 102.7 | 138.1 | 188.3 | |
| February | 106 | 146 | 215.3 | |
| March | 123.1 | 177.3 | 295.9 | |
| April | 140.5 | 215 | 436.8 | |
| May | 167.3 | 266.9 | 626.7 | |
| June | 160.6 | 228.9 | 405.2 | |
| July | 124.3 | 196.5 | 254.9 | |
| August | 89.3 | 168.9 | 231.1 | |
| September | 75.2 | 131.3 | 209.9 | |
| October | 77.6 | 123.7 | 201.3 | |
| November | 100.2 | 137.4 | 197.2 | |
| December | 101.8 | 137.9 | 187.9 |
All values in cubic feet per second (cfs).
Other gauges in this subbasin
- Portneuf River. at Inkom, ID
- Marsh Creek Ab Hawkins Creek near Virginia, ID
- Marsh Creek near McCammon, ID
- Portneuf River at Pocatello, ID
- Portneuf River near Tyhee, ID
- Spring Creek at Sheepskin Rd near Fort Hall, ID
- Portneuf River. above Toponce Rd, near Chesterfield, ID
- Portneuf River at Pebble, ID