USGS Streamgage 06349000
Heart River near Mandan, ND
Heart River near Mandan, ND is USGS streamgage 06349000, monitoring river discharge in hydrologic subbasin 10130203. It drains a watershed of about 3,310 square miles. Discharge records at this site go back to 1924. Typical flow runs near 97.2 cfs in July and 256.2 cfs in April, with the higher of the two arriving in April.
Gauge details
- Drainage area
- 3,310 sq mi
- Gauge elevation
- 1,662 ft
- Subbasin (HUC-8)
- 10130203
- Coordinates
- 46.83388, -100.97458
- USGS site number
- 06349000
- Records begin
- 1924-04-01 (102 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 102 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 | 1.1 | 12.7 | 60.8 | |
| February | 0.1 | 15.2 | 178.3 | |
| March | 19.1 | 178.4 | 2,515.8 | |
| April | 41.7 | 256.2 | 2,516.7 | |
| May | 28.2 | 122.7 | 852.9 | |
| June | 35 | 135.2 | 837.6 | |
| July | 25.8 | 97.2 | 427.6 | |
| August | 16.2 | 69.2 | 186.6 | |
| September | 13.4 | 55.4 | 138 | |
| October | 13.3 | 40.8 | 127.4 | |
| November | 13.5 | 32.9 | 93.3 | |
| December | 6.2 | 22 | 72.9 |
All values in cubic feet per second (cfs).