Old Mans Creek Near Iowa City, IA
USGS Site No: 05455100 • Old Mans Creek • Johnson County, IA
Old Mans Creek Near Iowa City, IA on the Old Mans Creek is currently at 138 cfs (High — 79th percentile for this date) . Gage height: 2.85 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 28 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 | 1 | |
| 25th | Low threshold | 5 | |
| 50th (Median) | Normal (median) | 18 | |
| 75th | High threshold | 84 | |
| 95th | Very High threshold | 347 | Today: 138 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 | 148 | — |
| May 27, 2026 | 157 | — |
| May 26, 2026 | 166 | — |
| May 25, 2026 | 178 | — |
| May 24, 2026 | 199 | — |
| May 23, 2026 | 229 | — |
| May 22, 2026 | 266 | — |
| May 21, 2026 | 331 | — |
| May 20, 2026 | 551 | — |
| May 19, 2026 | 464 | — |
| May 18, 2026 | 156 | — |
| May 17, 2026 | 120 | — |
| May 16, 2026 | 116 | — |
| May 15, 2026 | 115 | — |
| Apr 20, 2026 | 321 | — |
| Apr 19, 2026 | 381 | — |
| Apr 18, 2026 | 490 | — |
| Apr 17, 2026 | 653 | — |
| Apr 16, 2026 | 1,130 | — |
| Apr 15, 2026 | 882 | — |
| Apr 14, 2026 | 371 | — |
| Apr 13, 2026 | 491 | — |
| Apr 12, 2026 | 269 | — |
| Apr 11, 2026 | 376 | — |
| Apr 10, 2026 | 375 | — |
| Apr 9, 2026 | 93 | — |
| Apr 8, 2026 | 102 | — |
| Apr 7, 2026 | 112 | — |
| Apr 6, 2026 | 136 | — |
| Apr 5, 2026 | 175 | — |
Station Information
- USGS Site No
- 05455100
- State
- IA
- County
- Johnson County
- Coordinates
- 41.6064, -91.6157
- Drainage Area
- 201 mi²
- Datum (ft)
- 637.3
- HUC Code
- 07080209
Flood Stage Thresholds
- Action Stage
- 10.5 ft
- Flood Stage
- 12.0 ft
Currently 9.15 ft below flood stage.
Recent Extremes
- Max discharge
-
1,130 cfsApr 16, 2026
- Min discharge
-
10 cfsMar 1, 2026
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Clear Creek Near Coralville, IANormal4.9 mi · 36 cfs
-
Iowa River at Iowa City, IAHigh5.2 mi · 2,420 cfs
-
South Branch Ralston Creek at Iowa City, IALow6.4 mi · 0 cfs
-
Muddy Creek at Coralville, IANormal7.0 mi · 4 cfs
-
Iowa River Below Coralville Dam near Coralville, IAHigh8.7 mi · 2,390 cfs