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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.)
May-20 05:30 pm 7.68 11,950 5.0
May-20 04:30 pm 7.71 12,025 5.0
May-20 03:30 pm 7.73 12,075 5.1
May-20 02:30 pm 7.75 12,125 5.1
May-20 01:30 pm 7.77 12,175 5.1
May-20 12:30 pm 7.79 12,225 5.1
May-20 11:30 am 7.82 12,300 5.2
May-20 10:30 am 7.84 12,350 5.2
May-20 09:30 am 7.85 12,375 5.2
May-20 08:30 am 7.87 12,425 5.2
May-20 07:30 am 7.89 12,475 5.2
May-20 06:30 am 7.90 12,500 5.2
May-20 05:30 am 7.91 12,525 5.3
May-20 04:30 am 7.92 12,550 5.3
May-20 03:30 am 7.92 12,550 5.3
May-20 02:30 am 7.92 12,550 5.3
May-20 01:30 am 7.93 12,575 5.3
May-20 12:30 am 7.93 12,575 5.3
May-19 11:30 pm 7.93 12,575 5.3
May-19 10:30 pm 7.92 12,550 5.3
May-19 09:30 pm 7.93 12,575 5.3
May-19 08:30 pm 7.93 12,575 5.3
May-19 07:30 pm 7.94 12,600 5.3
May-19 06:30 pm 7.95 12,625 5.3
May-19 05:30 pm 7.96 12,650 5.3
Report Generated May 20, 2025 10:02 pm