USGS Streamgage 06023100
Beaverhead River at Twin Bridges, MT
Beaverhead River at Twin Bridges, MT is USGS streamgage 06023100 in Montana, monitoring river discharge in hydrologic subbasin 10020002. It drains a watershed of about 4,772 square miles. Discharge records at this site go back to 2008. Typical flow runs near 356.7 cfs in July and 319 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Montana
- Drainage area
- 4,772 sq mi
- Gauge elevation
- 4,633 ft
- Subbasin (HUC-8)
- 10020002
- Coordinates
- 45.54689, -112.33811
- USGS site number
- 06023100
- Records begin
- 2008-07-01 (18 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 17 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.
Only 7 of 12 months have enough record to summarize; the rest are omitted.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| April | — | 319 | — | |
| May | — | 339.6 | — | |
| June | — | 581.1 | — | |
| July | 181.6 | 356.7 | 1,302.5 | |
| August | 187.2 | 296.6 | 621.1 | |
| September | 275.2 | 436.7 | 912.5 | |
| October | — | 728.6 | — |
All values in cubic feet per second (cfs).