Iowa River at Oakville, IA
USGS Site No: 05465700 • Iowa River • Louisa County, IA
Iowa River at Oakville, IA on the Iowa River is currently at 9,630 cfs (Normal — 48th percentile for this date) . Gage height: 4.62 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for July 29 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 | 2,450 | |
| 25th | Low threshold | 6,210 | |
| 50th (Median) | Normal (median) | 9,950 | Today: 9,630 cfs |
| 75th | High threshold | 15,000 | |
| 95th | Very High threshold | 0 |
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 | 10,300 | — |
| May 27, 2026 | 11,100 | — |
| May 26, 2026 | 12,300 | — |
| May 25, 2026 | 13,200 | — |
| May 24, 2026 | 13,700 | — |
| May 23, 2026 | 13,800 | — |
| May 22, 2026 | 13,900 | — |
| May 21, 2026 | 14,400 | — |
| May 20, 2026 | 11,300 | — |
| May 19, 2026 | 9,170 | — |
| May 18, 2026 | 8,510 | — |
| May 17, 2026 | 8,460 | — |
| May 16, 2026 | 8,870 | — |
| May 15, 2026 | 9,090 | — |
| Apr 20, 2026 | 38,000 | — |
| Apr 19, 2026 | 38,000 | — |
| Apr 18, 2026 | 38,600 | — |
| Apr 17, 2026 | 36,300 | — |
| Apr 16, 2026 | 32,100 | — |
| Apr 15, 2026 | 31,900 | — |
| Apr 14, 2026 | 34,000 | — |
| Apr 13, 2026 | 38,700 | — |
| Apr 12, 2026 | 41,000 | — |
| Apr 11, 2026 | 38,000 | — |
| Apr 10, 2026 | 33,600 | — |
| Apr 9, 2026 | 30,300 | — |
| Apr 8, 2026 | 27,900 | — |
| Apr 7, 2026 | 24,600 | — |
| Apr 6, 2026 | 20,800 | — |
| Apr 5, 2026 | 18,700 | — |
Station Information
- USGS Site No
- 05465700
- State
- IA
- County
- Louisa County
- Coordinates
- 41.1032, -91.0635
- Drainage Area
- 12,630 mi²
- Datum (ft)
- 535.3
- HUC Code
- 07080209
Flood Stage Thresholds
- Action Stage
- 8.0 ft
- Flood Stage
- 11.0 ft
- Moderate Flood
- 15.0 ft
- Major Flood
- 20.0 ft
Currently 6.38 ft below flood stage.
Recent Extremes
- Max discharge
-
44,400 cfsAug 2, 2025
- Min discharge
-
1,770 cfsDec 15, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Edwards River Near New Boston, ILNormal7.7 mi · 152 cfs
-
Pope Creek Near Keithsburg, ILNormal7.7 mi · 58 cfs
-
Iowa River at Wapello, IANormal8.1 mi · 9,390 cfs
-
Henderson Creek Near Oquawka, ILNormal13.0 mi · 174 cfs
-
Cedar Creek at Little York, ILUnknown17.7 mi