Ohio River at Smithland Dam, Smithland, KY
USGS Site No: 03399800 • Ohio River • Pope County, IL
Ohio River at Smithland Dam, Smithland, KY on the Ohio River is currently at 316,000 cfs (Very High — 99th percentile for this date) . Gage height: 12.50 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 | 18,100 | |
| 25th | Low threshold | 37,500 | |
| 50th (Median) | Normal (median) | 70,700 | |
| 75th | High threshold | 108,000 | |
| 95th | Very High threshold | 231,000 |
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 | 391,000 | — |
| May 27, 2026 | 379,000 | — |
| May 26, 2026 | 359,000 | — |
| May 25, 2026 | 327,000 | — |
| May 24, 2026 | 269,000 | — |
| May 23, 2026 | 214,000 | — |
| May 22, 2026 | 193,000 | — |
| May 21, 2026 | 176,000 | — |
| May 20, 2026 | 151,000 | — |
| May 19, 2026 | 138,000 | — |
| May 18, 2026 | 141,000 | — |
| May 17, 2026 | 131,000 | — |
| May 16, 2026 | 150,000 | — |
| May 15, 2026 | 180,000 | — |
| Apr 21, 2026 | 133,000 | — |
| Apr 20, 2026 | 135,000 | — |
| Apr 19, 2026 | 136,000 | — |
| Apr 18, 2026 | 145,000 | — |
| Apr 17, 2026 | 149,000 | — |
| Apr 16, 2026 | 171,000 | — |
| Apr 15, 2026 | 193,000 | — |
| Apr 14, 2026 | 209,000 | — |
| Apr 13, 2026 | 239,000 | — |
| Apr 12, 2026 | 261,000 | — |
| Apr 11, 2026 | 273,000 | — |
| Apr 10, 2026 | 279,000 | — |
| Apr 9, 2026 | 282,000 | — |
| Apr 8, 2026 | 288,000 | — |
| Apr 7, 2026 | 287,000 | — |
| Apr 6, 2026 | 266,000 | — |
Station Information
- USGS Site No
- 03399800
- State
- IL
- County
- Pope County
- Coordinates
- 37.1592, -88.4273
- Drainage Area
- 144,000 mi²
- Datum (ft)
- 289.1
- HUC Code
- 05140203
Flood Stage Thresholds
- Action Stage
- 35.0 ft
- Flood Stage
- 40.0 ft
- Moderate Flood
- 48.0 ft
- Major Flood
- 50.0 ft
Currently 27.50 ft below flood stage.
Recent Extremes
- Max discharge
-
671,000 cfsApr 22, 2025
- Min discharge
-
5,760 cfsAug 31, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Ohio River at Dam 51 at Golconda, ILUnknown14.1 mi · 0 cfs
- Unknown
-
Ohio River at Metropolis, ILHigh16.4 mi · 162,276 cfs
-
Massac Creek Near Paducah, KYNormal17.6 mi · 2 cfs
-
Lusk Creek Near Eddyville, ILHigh22.6 mi · 17 cfs