Missouri River at Big Bend Dam
The Missouri River at Big Bend Dam read 1,420.79 ft at .
- Newest reading
- 1,420.79 ftProvisional
- Change
- -0.25 ft in a day
- -0.39 ft in a week
That is below the action stage of 1,422 ft set by the National Weather Service.
The last 31 days
- Level
- Official level
- Our record
Table: The last 31 days
| Day | Daily average (ft) |
|---|---|
| no value | |
| 527.91 ft | |
| 524.75 ft | |
| 295.19 ft | |
| 524.21 ft | |
| 972.99 ft | |
| 969.28 ft | |
| 523.01 ft | |
| 289.54 ft | |
| 741.28 ft | |
| 741.54 ft | |
| 744.24 ft | |
| 967.36 ft | |
| 741.22 ft | |
| 1,420.59 ft | |
| 742.06 ft | |
| 513.34 ft | |
| 740.28 ft | |
| 907.60 ft | |
| 512.40 ft | |
| 969.83 ft | |
| 1,193.94 ft | |
| 741.74 ft | |
| 1,194.64 ft | |
| 1,421.00 ft | |
| 1,421.06 ft | |
| 1,421.05 ft | |
| 1,420.98 ft | |
| 1,420.86 ft | |
| 1,420.75 ft | |
| no value |
Normal range and official levels
- Action stage: 1,422 ft. The newest reading is 1.21 ft below it.Set by NOAA National Water Prediction Service (NWPS).
- Minor flood stage: 1,422.5 ft. The newest reading is 1.71 ft below it.Set by NOAA National Water Prediction Service (NWPS).
- Moderate flood stage: 1,423 ft. The newest reading is 2.21 ft below it.Set by NOAA National Water Prediction Service (NWPS).
- Major flood stage: 1,440 ft. The newest reading is 19.21 ft below it.Set by NOAA National Water Prediction Service (NWPS).
Records
- Highest reading in our series since 4 September 2026: 1,421.25 ft at 02:00 CDT on 30 September 2026. Provisional data.
- Lowest reading in our series since 4 September 2026: 49.00 ft at 01:00 CDT on 22 September 2026. Provisional data.
- Highest daily average in our series since 4 September 2026: 1,421.06 ft on 29 September 2026. Provisional data.
- Lowest daily average in our series since 4 September 2026: 289.54 ft on 12 September 2026. Provisional data.
About this gauge
Big Bend Dam is a gauge on the Missouri River in South Dakota, United States.
It lies at 44.0383° N, 99.4458° W.
Its readings come from the National Weather Service (NWPS).
The gauge reads the height of the water above a fixed zero, not the depth of the river.
The newest reading is provisional: the source may still correct it.
The National Weather Service credits: Observations courtesy of US Army Corps of Engineers.