Merrimack River
NORMAL117-mile river flowing through New Hampshire and Massachusetts.
Current Flow2,820 cfs
Gauge Height42.28 ft
30-Day Min1,370 cfs
30-Day Max4,830 cfs
30-Day Avg2,938 cfs
Flow Trend (30 Days)
Gauge Information
| Site Name | MERRIMACK RIVER BL CONCORD RIVER AT LOWELL, MA |
| Site Code | 01100000 |
| State | NH |
| Coordinates | 42.8, -71.1 |
| Data Points | 29 |