USGS Streamgage 13068501
Blackfoot River and Bypass Channel near Blackfoot, ID
Blackfoot River and Bypass Channel near Blackfoot, ID is USGS streamgage 13068501 in Idaho, monitoring river discharge in hydrologic subbasin 17040207. It drains a watershed of about 1,295 square miles. Discharge records at this site go back to 1913. Typical flow runs near 54.4 cfs in July and 200 cfs in April, with the higher of the two arriving in April. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.
View live conditions & forecast →
Gauge details
- State
- Idaho
- Drainage area
- 1,295 sq mi
- Subbasin (HUC-8)
- 17040207
- Coordinates
- 43.13047, -112.4772
- USGS site number
- 13068501
- Records begin
- 1913-04-27 (113 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Blackfoot River and Bypass Channel near Blackfoot, ID. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.
| Date | Low p10 | Expected p50 | High p90 | Range |
|---|---|---|---|---|
| 15.7 | 23 | 38.9 | ||
| 12.6 | 24 | 51.7 | ||
| 10.8 | 22.8 | 57.9 | ||
| 9.4 | 22.4 | 59.9 | ||
| 7.8 | 21.2 | 56.8 | ||
| 7.4 | 21.4 | 61.2 | ||
| 7 | 21.6 | 62.6 | ||
| 8.2 | 24.4 | 74.9 | ||
| 7.6 | 25.1 | 88.7 | ||
| 7.2 | 23.8 | 77.5 | ||
| 9.4 | 27.1 | 91.6 | ||
| 9.9 | 28.2 | 98.1 | ||
| 9.4 | 26.7 | 89.4 | ||
| 9.9 | 27.1 | 89.7 |
All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 104 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 | 41.5 | 93 | 249.1 | |
| February | 40.3 | 96.8 | 302.8 | |
| March | 59 | 117.1 | 445.7 | |
| April | 63 | 200 | 677 | |
| May | 19.6 | 210.7 | 915.4 | |
| June | 6.8 | 127.5 | 586.1 | |
| July | 1.7 | 54.4 | 333.8 | |
| August | 1.3 | 71.2 | 383.1 | |
| September | 6.2 | 86.4 | 369 | |
| October | 56.5 | 243.3 | 524.2 | |
| November | 79.4 | 210.3 | 473.8 | |
| December | 56.4 | 115.6 | 285 |
All values in cubic feet per second (cfs).
Common questions
- When does Blackfoot River and Bypass Channel near Blackfoot, ID normally run highest?
- October, on the long-term record. The median daily flow that month is about 243.3 cfs, against 54.4 cfs in July, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Blackfoot River and Bypass Channel near Blackfoot, ID?
- It depends on the month. In January, half of days historically fall near 93 cfs, with the middle 80% of days between 41.5 and 249.1 cfs. The month-by-month table on this page gives the full range.
- How long has Blackfoot River and Bypass Channel near Blackfoot, ID been measured?
- Discharge records at USGS site 13068501 begin in 1913, about 113 years, covering roughly 6,035 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for Blackfoot River and Bypass Channel near Blackfoot, ID?
- Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.
- Where is Blackfoot River and Bypass Channel near Blackfoot, ID?
- The gauge sits at 43.13047, -112.4772, in Idaho, in hydrologic subbasin 17040207, draining roughly 1,295 square miles.
- Can I use Blackfoot River and Bypass Channel near Blackfoot, ID 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.