Iowa River Near Lone Tree, IA
USGS Site No: 05455700 • Iowa River • Louisa County, IA
Iowa River Near Lone Tree, IA on the Iowa River is currently at 3,580 cfs (Normal — 43th percentile for this date) . Gage height: 7.94 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for June 11 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 | 665 | |
| 25th | Low threshold | 1,840 | |
| 50th (Median) | Normal (median) | 4,240 | Today: 3,580 cfs |
| 75th | High threshold | 7,280 | |
| 95th | Very High threshold | 14,600 |
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 | 3,840 | — |
| May 27, 2026 | 4,010 | — |
| May 26, 2026 | 4,580 | — |
| May 25, 2026 | 5,210 | — |
| May 24, 2026 | 5,450 | — |
| May 23, 2026 | 5,450 | — |
| May 22, 2026 | 5,670 | — |
| May 21, 2026 | 6,250 | — |
| May 20, 2026 | 7,010 | — |
| May 19, 2026 | 3,730 | — |
| May 18, 2026 | 2,900 | — |
| May 17, 2026 | 2,600 | — |
| May 16, 2026 | 2,510 | — |
| May 15, 2026 | 2,680 | — |
| Apr 20, 2026 | 10,800 | — |
| Apr 19, 2026 | 11,500 | — |
| Apr 18, 2026 | 12,600 | — |
| Apr 17, 2026 | 15,200 | — |
| Apr 16, 2026 | 16,100 | — |
| Apr 15, 2026 | 12,400 | — |
| Apr 14, 2026 | 12,100 | — |
| Apr 13, 2026 | 11,400 | — |
| Apr 12, 2026 | 11,200 | — |
| Apr 11, 2026 | 11,600 | — |
| Apr 10, 2026 | 9,610 | — |
| Apr 9, 2026 | 7,940 | — |
| Apr 8, 2026 | 7,640 | — |
| Apr 7, 2026 | 7,630 | — |
| Apr 6, 2026 | 6,330 | — |
| Apr 5, 2026 | 5,450 | — |
Station Information
- USGS Site No
- 05455700
- State
- IA
- County
- Louisa County
- Coordinates
- 41.4238, -91.4785
- Drainage Area
- 4,293 mi²
- Datum (ft)
- 587.9
- HUC Code
- 07080209
Flood Stage Thresholds
- Action Stage
- 14.0 ft
- Flood Stage
- 16.0 ft
- Moderate Flood
- 18.5 ft
- Major Flood
- 22.0 ft
Currently 8.06 ft below flood stage.
Recent Extremes
- Max discharge
-
16,200 cfsJul 31, 2025
- Min discharge
-
853 cfsNov 27, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Cedar River Near Conesville, IANormal9.8 mi · 5,790 cfs
-
Iowa River at Columbus Junction, IANormal12.2 mi · 9,630 cfs
-
English River at Kalona, IANormal12.6 mi · 366 cfs
-
Old Mans Creek Near Iowa City, IANormal14.5 mi · 138 cfs
-
South Branch Ralston Creek at Iowa City, IAVery Low15.8 mi · 0 cfs