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Merrimack River @ Lowell, Ma
Merrimack River at Lowell
 Total Drainage Area: 4,635 sq. miles 
 Drainage Area Controlled by Corps Dams: 1,619 sq. miles (35%) 
 Warning Flow/Stage: 28,500 cfs / 49.0 feet 
 Flood Flow/Stage: 45,100 cfs / 52.0 feet 
Date Time
(Eastern)		 Stage
(ft)		 Flow
(cfs)		 CSM
(cfs / sq. mi.)
Nov-17 07:30 am 42.61 3,289 .7
Nov-17 06:30 am 42.61 3,289 .7
Nov-17 05:30 am 42.62 3,313 .7
Nov-17 04:30 am 42.61 3,289 .7
Nov-17 03:30 am 42.62 3,313 .7
Nov-17 02:30 am 42.68 3,459 .8
Nov-17 01:30 am 42.72 3,557 .8
Nov-17 12:30 am 42.80 3,756 .8
Nov-16 11:30 pm 42.89 3,984 .9
Nov-16 10:30 pm 42.91 4,036 .9
Nov-16 09:30 pm 42.93 4,087 .9
Nov-16 08:30 pm 42.95 4,139 .9
Nov-16 07:30 pm 42.94 4,113 .9
Nov-16 06:30 pm 42.81 3,781 .8
Nov-16 05:30 pm 42.70 3,508 .8
Nov-16 04:30 pm 42.70 3,508 .8
Nov-16 03:30 pm 42.69 3,483 .8
Nov-16 02:30 pm 42.70 3,508 .8
Nov-16 01:30 pm 42.70 3,508 .8
Nov-16 12:30 pm 42.69 3,483 .8
Nov-16 11:30 am 42.67 3,434 .7
Nov-16 10:30 am 42.68 3,459 .8
Nov-16 09:30 am 42.70 3,508 .8
Nov-16 08:30 am 42.70 3,508 .8
Nov-16 07:30 am 42.71 3,532 .8
Report Generated November 17, 2025 01:24 pm