Natchaug River at Marcy Road. Near Chaplin, CT
USGS Site No: 01120790 • Natchaug River • Northeastern Connecticut Planning Region, CT
Natchaug River at Marcy Road. Near Chaplin, CT on the Natchaug River is currently at 53 cfs (Normal — 43th percentile for this date) . Gage height: 2.76 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 | 11 | |
| 25th | Low threshold | 20 | |
| 50th (Median) | Normal (median) | 65 | Today: 53 cfs |
| 75th | High threshold | 201 | |
| 95th | Very High threshold | 599 |
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 | 70 | — |
| May 27, 2026 | 91 | — |
| May 26, 2026 | 134 | — |
| May 25, 2026 | 167 | — |
| May 24, 2026 | 85 | — |
| May 23, 2026 | 56 | — |
| May 22, 2026 | 53 | — |
| May 21, 2026 | 61 | — |
| May 20, 2026 | 73 | — |
| May 19, 2026 | 83 | — |
| May 18, 2026 | 96 | — |
| May 17, 2026 | 124 | — |
| May 16, 2026 | 164 | — |
| May 15, 2026 | 261 | — |
| Apr 20, 2026 | 146 | — |
| Apr 19, 2026 | 170 | — |
| Apr 18, 2026 | 244 | — |
| Apr 17, 2026 | 186 | — |
| Apr 16, 2026 | 151 | — |
| Apr 15, 2026 | 99 | — |
| Apr 14, 2026 | 98 | — |
| Apr 13, 2026 | 102 | — |
| Apr 12, 2026 | 101 | — |
| Apr 11, 2026 | 111 | — |
| Apr 10, 2026 | 118 | — |
| Apr 9, 2026 | 126 | — |
| Apr 8, 2026 | 139 | — |
| Apr 7, 2026 | 156 | — |
| Apr 6, 2026 | 178 | — |
| Apr 5, 2026 | 182 | — |
Station Information
- USGS Site No
- 01120790
- State
- CT
- Coordinates
- 41.8162, -72.1062
- Drainage Area
- 67 mi²
- Datum (ft)
- 352.9
- HUC Code
- 011000020206
Recent Extremes
- Max discharge
-
1,190 cfsMar 17, 2026
- Min discharge
-
7 cfsSep 23, 2025
Computed from the local daily-values archive.
Nearby Gauges
-
Mount Hope River Near Warrenville, CTNormal3.7 mi · 26 cfs
-
Fenton River at Mansfield, CTNormal7.1 mi · 21 cfs
-
Natchaug River at Willimantic, CTHigh8.1 mi · 303 cfs
-
Shetucket River Near Willimantic, CTNormal8.9 mi · 548 cfs
-
Willimantic River Near Coventry, CTNormal9.4 mi · 120 cfs