Back to Main Menu

New England District
Project Data

Merrimack River @ Concord, Nh

Graphical Hydro Data

Drainage Area 2385 sq. mi.
Warning Stage / Flow 10 ft / 18000 cfs
Channel Capacity 13.7 ft / 30200 cfs
Date Time Stage
(ft)
Flow
(cfs)
23 Mar 15:30 4.72 4,940
23 Mar 15:15 4.71 4,920
23 Mar 15:00 4.70 4,900
23 Mar 14:45 4.69 4,880
23 Mar 14:30 4.68 4,860
23 Mar 14:15 4.68 4,860
23 Mar 14:00 4.67 4,840
23 Mar 13:45 4.66 4,820
23 Mar 13:30 4.65 4,800
23 Mar 13:15 4.65 4,800
23 Mar 13:00 4.66 4,820
23 Mar 12:45 4.67 4,840
23 Mar 12:30 4.68 4,860
23 Mar 12:15 4.70 4,900
23 Mar 12:00 4.70 4,900
23 Mar 11:45 4.70 4,900
23 Mar 11:30 4.70 4,900
23 Mar 11:15 4.69 4,880
23 Mar 11:00 4.69 4,880
23 Mar 10:45 4.69 4,880
23 Mar 10:30 4.69 4,880
23 Mar 10:15 4.69 4,880
23 Mar 10:00 4.68 4,860
23 Mar 09:45 4.68 4,860
23 Mar 09:30 4.68 4,860
23 Mar 09:15 4.68 4,860
23 Mar 09:00 4.67 4,840
23 Mar 08:45 4.67 4,840
23 Mar 08:30 4.66 4,820
23 Mar 08:15 4.66 4,820
23 Mar 08:00 4.66 4,820
23 Mar 07:45 4.66 4,820
23 Mar 07:30 4.65 4,800
23 Mar 07:15 4.65 4,800
23 Mar 07:00 4.64 4,780
23 Mar 06:45 4.64 4,780
23 Mar 06:30 4.64 4,780
23 Mar 06:15 4.63 4,760
23 Mar 06:00 4.63 4,760
23 Mar 05:45 4.62 4,740
23 Mar 05:30 4.62 4,740
23 Mar 05:15 4.62 4,740
23 Mar 05:00 4.62 4,740
23 Mar 04:45 4.61 4,720
23 Mar 04:30 4.60 4,700
23 Mar 04:15 4.59 4,680
23 Mar 04:00 4.59 4,680
23 Mar 03:45 4.58 4,660
23 Mar 03:30 4.58 4,660
23 Mar 03:15 4.58 4,660
23 Mar 03:00 4.58 4,660
23 Mar 02:45 4.57 4,640
23 Mar 02:30 4.57 4,640
23 Mar 02:15 4.55 4,600
23 Mar 02:00 4.55 4,600
23 Mar 01:45 4.55 4,600
23 Mar 01:30 4.54 4,580
23 Mar 01:15 4.54 4,580
23 Mar 01:00 4.53 4,560
23 Mar 00:45 4.52 4,540
23 Mar 00:30 4.52 4,540
23 Mar 00:15 4.51 4,520
23 Mar 00:00 4.50 4,500
22 Mar 23:45 4.50 4,500
22 Mar 23:30 4.49 4,482
22 Mar 23:15 4.48 4,464
22 Mar 23:00 4.48 4,464
22 Mar 22:45 4.48 4,464
22 Mar 22:30 4.48 4,464
22 Mar 22:15 4.47 4,446
22 Mar 22:00 4.47 4,446
22 Mar 21:45 4.46 4,428
22 Mar 21:30 4.46 4,428
22 Mar 21:15 4.46 4,428
22 Mar 21:00 4.46 4,428
22 Mar 20:45 4.46 4,428
22 Mar 20:30 4.46 4,428
22 Mar 20:15 4.45 4,410
22 Mar 20:00 4.45 4,410
22 Mar 19:45 4.45 4,410
22 Mar 19:30 4.45 4,410
22 Mar 19:15 4.42 4,356
22 Mar 19:00 4.46 4,428
22 Mar 18:45 4.45 4,410
22 Mar 18:30 4.46 4,428
22 Mar 18:15 4.39 4,302
22 Mar 18:00 4.44 4,392
22 Mar 17:45 4.41 4,338
22 Mar 17:30 4.44 4,392
22 Mar 17:15 4.46 4,428
22 Mar 17:00 4.41 4,338
22 Mar 16:45 4.44 4,392
22 Mar 16:30 4.44 4,392
22 Mar 16:15 4.43 4,374
22 Mar 16:00 4.46 4,428
22 Mar 15:45
22 Mar 15:30

Please note: all data presented on this website are for informational purposes only and should be considered preliminary.