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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.)
Aug-07 11:30 pm 43.00 4,270 .9
Aug-07 10:30 pm 43.00 4,270 .9
Aug-07 09:30 pm 43.00 4,270 .9
Aug-07 08:30 pm 43.00 4,270 .9
Aug-07 07:30 pm 43.03 4,349 .9
Aug-07 06:30 pm 43.06 4,428 1.0
Aug-07 05:30 pm 43.10 4,535 1.0
Aug-07 04:30 pm 43.18 4,752 1.0
Aug-07 03:30 pm 43.21 4,834 1.0
Aug-07 02:30 pm 43.20 4,806 1.0
Aug-07 01:30 pm 43.19 4,779 1.0
Aug-07 12:30 pm 43.21 4,834 1.0
Aug-07 11:30 am 43.20 4,806 1.0
Aug-07 10:30 am 43.21 4,834 1.0
Aug-07 09:30 am 43.21 4,834 1.0
Aug-07 08:30 am 43.22 4,861 1.1
Aug-07 07:30 am 43.21 4,834 1.0
Aug-07 06:30 am 43.21 4,834 1.0
Aug-07 05:30 am 43.22 4,861 1.1
Aug-07 04:30 am 43.23 4,889 1.1
Aug-07 03:30 am 43.27 4,999 1.1
Aug-07 02:30 am 43.30 5,083 1.1
Aug-07 01:30 am 43.32 5,139 1.1
Aug-07 12:30 am 43.35 5,223 1.1
Aug-06 11:30 pm 43.38 5,308 1.2
Report Generated August 08, 2026 03:50 am