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Hopkinton Dam, Contoocook River
Hopkinton Dam, Contoocook River
 Drainage Area: 426 sq. miles 
 Channel Capacity: 7,000 cfs 
 Storage at Spillway Crest: 6.5 in / 70,100 ac-ft  
 Normal Pool: 380 Feet NGVD(Summer), 382 Feet NGVD(Winter) 
 Gate Settings for January 10, 2025 02:45 pm Gate 1 Gate 2 Gate 3 Gate 4 Gate 5 Gate 6 Gate 7 Gate 8
  0.6 0.6 0.6 0.6 0.0 0.0    
Date Time
(Eastern)		 Pool
(ft)		 Storage
(%)		 Storage
(ac-ft)		 Tailwater
(ft)		 Flow
(cfs)		 Inflow
(cfs)		 Precip
(in)		 Air Temp
(F)
Jan-12 08:00 pm 384.53 2.6 1,809       10.58  
Jan-12 07:00 pm 384.53 2.6 1,809 2.29 399 380 10.58 32.0
Jan-12 06:00 pm 384.54 2.6 1,814 2.29 399 391 10.58 36.5
Jan-12 05:00 pm 384.55 2.6 1,819 2.30 404 403 10.58 42.8
Jan-12 04:00 pm 384.55 2.6 1,819 2.30 404 381 10.58 49.1
Jan-12 03:00 pm 384.55 2.6 1,819 2.30 404 381 10.58 46.8
Jan-12 02:00 pm 384.55 2.6 1,819 2.30 404 372 10.58 41.4
Jan-12 01:00 pm 384.55 2.6 1,819 2.30 404 362 10.58 38.7
Jan-12 12:00 pm 384.55 2.6 1,819 2.29 399 352 10.58 37.8
Jan-12 11:00 am 384.55 2.6 1,819 2.30 404 342 10.58 37.4
Jan-12 10:00 am 384.57 2.6 1,830 2.30 404 363 10.58 34.2
Jan-12 09:00 am 384.57 2.6 1,830 2.31 409 352 10.58 30.7
Jan-12 08:00 am 384.58 2.6 1,835 2.31 409 351 10.58 26.2
Jan-12 07:00 am 384.59 2.6 1,841 2.31 409 361 10.58 26.2
Jan-12 06:00 am 384.60 2.6 1,846 2.30 404 361 10.58 26.6
Jan-12 05:00 am 384.61 2.6 1,851 2.30 404 372 10.58 27.1
Jan-12 04:00 am 384.61 2.6 1,851 2.30 404 361 10.58 26.6
Jan-12 03:00 am 384.62 2.6 1,857 2.30 404 372 10.58 26.6
Jan-12 02:00 am 384.63 2.6 1,862 2.30 404 394 10.58 26.2
Jan-12 01:00 am 384.63 2.6 1,862 2.30 404 404 10.58 26.2
Jan-12 12:00 am 384.64 2.6 1,867 2.31 409 425 10.58 26.2
Jan-11 11:00 pm 384.64 2.6 1,867 2.30 404 435 10.58 27.1
Jan-11 10:00 pm 384.65 2.7 1,873 2.30 404 467 10.58 28.0
Jan-11 09:00 pm 384.65 2.7 1,873 2.30 404 488 10.58 28.9
Jan-11 08:00 pm 384.64 2.6 1,867 2.30 404 509 10.58 29.8
Maximum 24 Hour Drawdown Rate (10 feet/day): 912 cfs + Inflow (380 cfs) = 1,292 cfs
Report Generated January 13, 2025 01:09 am