Big Sandy River at Louisa, KY
USGS Site No: 03215000 • Big Sandy River • Lawrence County, KY
Big Sandy River at Louisa, KY on the Big Sandy River is currently at 0 cfs (Unknown) . Gage height: 9.82 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 | 499 | |
| 25th | Low threshold | 747 | |
| 50th (Median) | Normal (median) | 1,380 | |
| 75th | High threshold | 2,570 | |
| 95th | Very High threshold | 7,510 |
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) |
|---|---|---|
| Jul 25, 2025 | 5 | — |
| Jul 24, 2025 | 6 | — |
| Jul 23, 2025 | 7 | — |
| Jul 22, 2025 | 6 | — |
| Jul 21, 2025 | 5 | — |
| Jul 20, 2025 | 5 | — |
| Jul 13, 2025 | 5 | — |
| Jul 12, 2025 | 5 | — |
| Jun 23, 2025 | 5 | — |
| Jun 22, 2025 | 6 | — |
| Jun 21, 2025 | 6 | — |
| Jun 20, 2025 | 7 | — |
| Jun 19, 2025 | 7 | — |
| Jun 18, 2025 | 7 | — |
| Jun 17, 2025 | 7 | — |
| Jun 16, 2025 | 6 | — |
| Jun 15, 2025 | 5 | — |
| Jun 13, 2025 | 5 | — |
| Jun 12, 2025 | 6 | — |
| Jun 11, 2025 | 6 | — |
| Jun 10, 2025 | 6 | — |
| Jun 9, 2025 | 6 | — |
| Jun 8, 2025 | 6 | — |
| Jun 7, 2025 | 5 | — |
| Jun 6, 2025 | 5 | — |
| Jun 5, 2025 | 5 | — |
| Jun 4, 2025 | 6 | — |
| Jun 3, 2025 | 7 | — |
| Jun 2, 2025 | 8 | — |
| Jun 1, 2025 | 8 | — |
Station Information
- USGS Site No
- 03215000
- State
- KY
- County
- Lawrence County
- Coordinates
- 38.1712, -82.6346
- Drainage Area
- 3,897 mi²
- Datum (ft)
- 512.1
- HUC Code
- 05070201
Flood Stage Thresholds
- Action Stage
- 45.0 ft
- Flood Stage
- 49.0 ft
- Moderate Flood
- 59.0 ft
- Major Flood
- 64.0 ft
Currently 39.18 ft below flood stage.
Recent Extremes
- Max discharge
-
14 cfsMay 19, 2025
- Min discharge
-
5 cfsJul 13, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Twelvepole Creek Below Wayne, WVVery High12.1 mi · 222 cfs
-
Twelvepole Creek at Lavalette, WVLow14.6 mi · 26 cfs
-
Blaine Creek Near Blaine, KYUnknown15.1 mi · 0 cfs
-
Ohio River at Huntington, WVUnknown18.2 mi · 0 cfs
-
Little Sandy River at Grayson, KYVery High19.8 mi · 2,280 cfs