Merrimack River near Goffs Falls, Below Manchester, NH
USGS Site No: 01092000 • Merrimack River • Hillsborough County, NH
Merrimack River near Goffs Falls, Below Manchester, NH on the Merrimack River is currently at 5,950 cfs (High — 75th percentile for this date) . Gage height: 5.39 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 | 1,230 | |
| 25th | Low threshold | 1,660 | |
| 50th (Median) | Normal (median) | 2,790 | |
| 75th | High threshold | 5,900 | |
| 95th | Very High threshold | 14,600 | Today: 5,950 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 | 7,170 | — |
| May 27, 2026 | 8,230 | — |
| May 25, 2026 | 5,680 | — |
| May 24, 2026 | 5,290 | — |
| May 23, 2026 | 5,650 | — |
| May 22, 2026 | 6,340 | — |
| May 21, 2026 | 7,620 | — |
| May 20, 2026 | 9,500 | — |
| May 19, 2026 | 12,300 | — |
| May 18, 2026 | 17,400 | — |
| May 17, 2026 | 21,800 | — |
| May 16, 2026 | 21,200 | — |
| May 15, 2026 | 11,200 | — |
| Apr 21, 2026 | 9,670 | — |
| Apr 20, 2026 | 9,210 | — |
| Apr 19, 2026 | 10,200 | — |
| Apr 18, 2026 | 11,400 | — |
| Apr 17, 2026 | 10,000 | — |
| Apr 16, 2026 | 10,200 | — |
| Apr 15, 2026 | 7,870 | — |
| Apr 14, 2026 | 6,390 | — |
| Apr 13, 2026 | 6,580 | — |
| Apr 12, 2026 | 6,880 | — |
| Apr 11, 2026 | 7,130 | — |
| Apr 10, 2026 | 7,870 | — |
| Apr 9, 2026 | 8,850 | — |
| Apr 8, 2026 | 10,200 | — |
| Apr 7, 2026 | 12,000 | — |
| Apr 6, 2026 | 12,900 | — |
| Apr 5, 2026 | 12,700 | — |
Station Information
- USGS Site No
- 01092000
- State
- NH
- County
- Hillsborough County
- Coordinates
- 42.9481, -71.4634
- Drainage Area
- 3,092 mi²
- Datum (ft)
- 108.6
- HUC Code
- 01070002
Flood Stage Thresholds
- Action Stage
- 10.0 ft
- Flood Stage
- 11.0 ft
- Moderate Flood
- 15.0 ft
- Major Flood
- 17.0 ft
Currently 5.61 ft below flood stage.
Recent Extremes
- Max discharge
-
26,100 cfsMay 11, 2025
- Min discharge
-
360 cfsOct 17, 2025
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Nashua River at East Pepperell, MANormal20.2 mi · 282 cfs
-
Merrimack River below Concord River at Lowell, MAHigh22.5 mi · 7,160 cfs
-
Concord River Below River Meadow Brook, at Lowell, MANormal23.0 mi · 323 cfs
-
Squannacook River Near West Groton, MANormal23.8 mi · 62 cfs
-
Shawsheen River at Balmoral Street at Andover, MANormal24.9 mi · 44 cfs