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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.)
Sep-04 06:30 pm 3.30 2,412 1.0
Sep-04 05:30 pm 3.24 2,320 1.0
Sep-04 04:30 pm 3.18 2,227 .9
Sep-04 03:30 pm 3.22 2,289 1.0
Sep-04 02:30 pm 3.25 2,335 1.0
Sep-04 01:30 pm 3.28 2,381 1.0
Sep-04 12:30 pm 3.33 2,458 1.0
Sep-04 11:30 am 3.37 2,520 1.1
Sep-04 10:30 am 3.41 2,581 1.1
Sep-04 09:30 am 3.46 2,658 1.1
Sep-04 08:30 am 3.51 2,738 1.2
Sep-04 07:30 am 3.58 2,861 1.2
Sep-04 06:30 am 3.66 3,002 1.3
Sep-04 05:30 am 3.65 2,984 1.3
Sep-04 04:30 am 3.64 2,966 1.2
Sep-04 03:30 am 3.62 2,931 1.2
Sep-04 02:30 am 3.60 2,896 1.2
Sep-04 01:30 am 3.58 2,861 1.2
Sep-04 12:30 am 3.54 2,790 1.2
Sep-03 11:30 pm 3.50 2,720 1.1
Sep-03 10:30 pm 3.46 2,658 1.1
Sep-03 09:30 pm 3.40 2,566 1.1
Sep-03 08:30 pm 3.33 2,458 1.0
Sep-03 07:30 pm 3.27 2,366 1.0
Sep-03 06:30 pm 3.18 2,227 .9
Report Generated September 04, 2026 10:56 pm