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Merrimack River @ Concord, Nh
Merrimack River at Concord
 Total Drainage Area: 2,385 sq. miles 
 Drainage Area Controlled by Corps Dams: 1,555 sq. miles (65%) 
 Warning Flow/Stage: ?? cfs / 10.0 feet 
 Flood Flow/Stage: ?? cfs / 13.7 feet 
Date Time
(Eastern)		 Stage
(ft)		 Flow
(cfs)		 CSM
(cfs / sq. mi.)
Jan-24 08:30 pm 2.57 1,757 .7
Jan-24 07:30 pm 2.60 1,770 .7
Jan-24 06:30 pm 2.67 1,802 .8
Jan-24 05:30 pm 3.62 2,931 1.2
Jan-24 04:30 pm 3.61 2,914 1.2
Jan-24 03:30 pm 3.62 2,931 1.2
Jan-24 02:30 pm 3.61 2,914 1.2
Jan-24 01:30 pm 3.60 2,896 1.2
Jan-24 12:30 pm 3.58 2,861 1.2
Jan-24 11:30 am 3.56 2,826 1.2
Jan-24 10:30 am 3.55 2,808 1.2
Jan-24 09:30 am 3.56 2,826 1.2
Jan-24 08:30 am 2.58 1,761 .7
Jan-24 07:30 am 2.59 1,766 .7
Jan-24 06:30 am 2.58 1,761 .7
Jan-24 05:30 am 2.59 1,766 .7
Jan-24 04:30 am 2.63 1,784 .8
Jan-24 03:30 am 2.69 1,811 .8
Jan-24 02:30 am 2.73 1,829 .8
Jan-24 01:30 am 3.81 3,266 1.4
Jan-24 12:30 am 3.81 3,266 1.4
Jan-23 11:30 pm 3.81 3,266 1.4
Jan-23 10:30 pm 3.77 3,195 1.3
Jan-23 09:30 pm 3.77 3,195 1.3
Jan-23 08:30 pm 3.77 3,195 1.3
Report Generated January 24, 2026 09:27 pm