Great Miami River at Troy OH
USGS Site No: 03262700 • Great Miami River • Miami County, OH
Great Miami River at Troy OH on the Great Miami River is currently at 2,290 cfs (High — 87th percentile for this date) . Gage height: 4.90 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 | 155 | |
| 25th | Low threshold | 222 | |
| 50th (Median) | Normal (median) | 373 | |
| 75th | High threshold | 830 | |
| 95th | Very High threshold | 3,180 | Today: 2,290 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 | 5,240 | — |
| May 27, 2026 | 3,350 | — |
| May 26, 2026 | 2,630 | — |
| May 25, 2026 | 4,300 | — |
| May 24, 2026 | 6,420 | — |
| May 23, 2026 | 5,500 | — |
| May 22, 2026 | 2,390 | — |
| May 21, 2026 | 4,180 | — |
| May 20, 2026 | 4,830 | — |
| May 19, 2026 | 1,440 | — |
| May 18, 2026 | 421 | — |
| May 17, 2026 | 410 | — |
| May 16, 2026 | 438 | — |
| May 15, 2026 | 491 | — |
| Apr 21, 2026 | 261 | — |
| Apr 20, 2026 | 303 | — |
| Apr 19, 2026 | 331 | — |
| Apr 18, 2026 | 401 | — |
| Apr 17, 2026 | 494 | — |
| Apr 16, 2026 | 591 | — |
| Apr 15, 2026 | 276 | — |
| Apr 14, 2026 | 278 | — |
| Apr 13, 2026 | 315 | — |
| Apr 12, 2026 | 361 | — |
| Apr 11, 2026 | 386 | — |
| Apr 10, 2026 | 456 | — |
| Apr 9, 2026 | 597 | — |
| Apr 8, 2026 | 784 | — |
| Apr 7, 2026 | 1,000 | — |
| Apr 6, 2026 | 1,320 | — |
Station Information
- USGS Site No
- 03262700
- State
- OH
- County
- Miami County
- Coordinates
- 40.0306, -84.1872
- Drainage Area
- 926 mi²
- Datum (ft)
- 808.1
- HUC Code
- 05080001
Flood Stage Thresholds
- Action Stage
- 9.5 ft
- Flood Stage
- 12.0 ft
- Moderate Flood
- 13.0 ft
- Major Flood
- 17.0 ft
Currently 7.10 ft below flood stage.
Recent Extremes
- Max discharge
-
9,100 cfsMay 7, 2025
- Min discharge
-
45 cfsSep 21, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Great Miami River at Piqua OHVery High8.6 mi · 2,230 cfs
-
Stillwater River at Pleasant Hill OHHigh9.1 mi · 1,130 cfs
-
Great Miami River at Taylorsville OHVery High10.9 mi · 4,010 cfs
-
Stillwater River at Englewood OHVery High12.2 mi · 4,220 cfs
-
Loramie Creek at Lockington OHHigh13.1 mi · 686 cfs