Roanoke River at Niagara, VA
USGS Site No: 02056000 • Roanoke River • Roanoke County, VA
Roanoke River at Niagara, VA on the Roanoke River is currently at 229 cfs (Normal — 55th percentile for this date) . Gage height: 2.12 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for October 27 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 | 123 | |
| 25th | Low threshold | 146 | |
| 50th (Median) | Normal (median) | 199 | |
| 75th | High threshold | 360 | Today: 229 cfs |
| 95th | Very High threshold | 1,120 |
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 | 296 | — |
| May 27, 2026 | 347 | — |
| May 26, 2026 | 359 | — |
| May 25, 2026 | 278 | — |
| May 24, 2026 | 231 | — |
| May 23, 2026 | 232 | — |
| May 22, 2026 | 179 | — |
| May 21, 2026 | 221 | — |
| May 20, 2026 | 155 | — |
| May 19, 2026 | 152 | — |
| May 18, 2026 | 165 | — |
| May 17, 2026 | 170 | — |
| May 16, 2026 | 178 | — |
| May 15, 2026 | 199 | — |
| Apr 21, 2026 | 198 | — |
| Apr 20, 2026 | 198 | — |
| Apr 19, 2026 | 205 | — |
| Apr 18, 2026 | 202 | — |
| Apr 17, 2026 | 211 | — |
| Apr 16, 2026 | 218 | — |
| Apr 15, 2026 | 226 | — |
| Apr 14, 2026 | 228 | — |
| Apr 13, 2026 | 243 | — |
| Apr 12, 2026 | 237 | — |
| Apr 11, 2026 | 243 | — |
| Apr 10, 2026 | 244 | — |
| Apr 9, 2026 | 250 | — |
| Apr 8, 2026 | 268 | — |
| Apr 7, 2026 | 253 | — |
| Apr 6, 2026 | 297 | — |
Station Information
- USGS Site No
- 02056000
- State
- VA
- County
- Roanoke County
- Coordinates
- 37.2551, -79.8714
- Drainage Area
- 509 mi²
- Datum (ft)
- 819.7
- HUC Code
- 03010101
Flood Stage Thresholds
- Action Stage
- 11.0 ft
- Flood Stage
- 13.0 ft
- Moderate Flood
- 15.0 ft
- Major Flood
- 18.0 ft
Currently 10.88 ft below flood stage.
Recent Extremes
- Max discharge
-
3,670 cfsMay 14, 2025
- Min discharge
-
140 cfsOct 26, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Back Creek Near Dundee, VANormal1.9 mi · 31 cfs
-
Tinker Creek Above Glade Creek at Roanoke, VALow2.6 mi · 27 cfs
-
Roanoke River at Roanoke, VANormal3.7 mi · 127 cfs
-
Lick Run Above Patton Avenue at Roanoke, VANormal4.0 mi · 5 cfs
-
Tinker Creek Near Daleville, VALow11.8 mi · 3 cfs