Maple River at Mapleton, IA
USGS Site No: 06607200 • Maple River • Monona County, IA
Maple River at Mapleton, IA on the Maple River is currently at 436 cfs (High — 90th percentile for this date) . Gage height: 5.70 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 27 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.
| Percentile | Label | CFS Threshold | Today's Flow |
|---|---|---|---|
| 10th | Very Low threshold | 37 | |
| 25th | Low threshold | 57 | |
| 50th (Median) | Normal (median) | 102 | |
| 75th | High threshold | 250 | |
| 95th | Very High threshold | 503 | Today: 436 cfs |
30-Day Hydrograph
Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| May 28, 2026 | 458 | — |
| May 27, 2026 | 482 | — |
| May 26, 2026 | 511 | — |
| May 25, 2026 | 556 | — |
| May 24, 2026 | 605 | — |
| May 23, 2026 | 529 | — |
| May 22, 2026 | 334 | — |
| May 21, 2026 | 339 | — |
| May 20, 2026 | 320 | — |
| May 19, 2026 | 313 | — |
| May 18, 2026 | 312 | — |
| May 17, 2026 | 310 | — |
| May 16, 2026 | 310 | — |
| May 15, 2026 | 269 | — |
| Apr 20, 2026 | 378 | — |
| Apr 19, 2026 | 388 | — |
| Apr 18, 2026 | 405 | — |
| Apr 17, 2026 | 425 | — |
| Apr 16, 2026 | 441 | — |
| Apr 15, 2026 | 459 | — |
| Apr 14, 2026 | 480 | — |
| Apr 13, 2026 | 501 | — |
| Apr 12, 2026 | 511 | — |
| Apr 11, 2026 | 508 | — |
| Apr 10, 2026 | 525 | — |
| Apr 9, 2026 | 551 | — |
| Apr 8, 2026 | 581 | — |
| Apr 7, 2026 | 605 | — |
| Apr 6, 2026 | 643 | — |
| Apr 5, 2026 | 670 | — |
Station Information
- USGS Site No
- 06607200
- State
- IA
- County
- Monona County
- Coordinates
- 42.1568, -95.8103
- Drainage Area
- 669 mi²
- Datum (ft)
- 1,081.3
- HUC Code
- 10230005
Flood Stage Thresholds
- Action Stage
- 19.0 ft
- Flood Stage
- 21.0 ft
- Moderate Flood
- 22.0 ft
- Major Flood
- 23.0 ft
Currently 15.30 ft below flood stage.
Recent Extremes
- Max discharge
-
4,100 cfsJul 31, 2025
- Min discharge
-
126 cfsFeb 23, 2026
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Little Sioux River Near Turin, IAVery High15.6 mi · 4,140 cfs
-
Monona-Harrison Ditch Near Turin, IAHigh16.2 mi · 488 cfs
-
Little Sioux River at Correctionville, IAVery High22.5 mi · 3,810 cfs
-
Soldier River at Pisgah, IAHigh23.4 mi · 174 cfs
-
Missouri River at Decatur, NENormal24.5 mi · 28,800 cfs