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 July 12, 2024 07:00 am Gate 1 Gate 2 Gate 3 Gate 4 Gate 5 Gate 6 Gate 7 Gate 8
  0.4 0.4 0.0 0.0 0.0 0.0    
Date Time
(Eastern)
Pool
(ft)
Storage
(%)
Storage
(ac-ft)
Tailwater
(ft)
Flow
(cfs)
Inflow
(cfs)
Precip
(in)
Air Temp
(F)
Jul-13 03:30 am 381.07 0.4 325       42.77  
Jul-13 02:30 am 381.08 0.4 329 1.56 120 69 42.50 80.1
Jul-13 01:30 am 381.10 0.5 336 1.56 120 77 42.47 81.5
Jul-13 12:30 am 381.11 0.5 340 1.56 120 84 42.47 82.8
Jul-12 11:30 pm 381.13 0.5 347 1.56 120 98 42.47 84.2
Jul-12 10:30 pm 381.13 0.5 347 1.56 120 106 42.47 85.5
Jul-12 09:30 pm 381.14 0.5 350 1.56 120 127 42.47 87.8
Jul-12 08:30 pm 381.15 0.5 354 1.56 120 156 42.47 90.5
Jul-12 07:30 pm 381.16 0.5 358 1.56 120 185 42.47 92.7
Jul-12 06:30 pm 381.16 0.5 358 1.56 120 214 42.47 95.9
Jul-12 05:30 pm 381.16 0.5 358 1.56 120 242 42.47 99.9
Jul-12 04:30 pm 381.15 0.5 354 1.56 120 259 42.47 100.4
Jul-12 03:30 pm 381.13 0.5 347 1.56 120 280 42.47 98.6
Jul-12 02:30 pm 381.10 0.5 336 1.56 120 288 42.47 97.7
Jul-12 01:30 pm 381.07 0.4 325 1.56 120 290 42.47 95.4
Jul-12 12:30 pm 381.03 0.4 311 1.56 120 291 42.47 95.0
Jul-12 11:30 am 380.99 0.4 297 1.55 118 299 42.47 94.1
Jul-12 10:30 am 380.95 0.4 285 1.56 120 305 42.47 90.9
Jul-12 09:30 am 380.89 0.4 267 1.55 118 292 42.47 86.4
Jul-12 08:30 am 380.84 0.3 252 1.55 118 292 42.47 77.9
Jul-12 07:30 am 380.80 0.3 240 1.55 118 292 42.47 75.2
Jul-12 06:30 am 380.75 0.3 225 1.55 118 286 42.47 74.3
Jul-12 05:30 am 380.69 0.3 207 1.55 118 262 42.47 74.3
Jul-12 04:30 am 380.64 0.3 192 1.55 118 244 42.47 75.6
Jul-12 03:30 am 380.60 0.2 180 1.55 118 226 42.47 77.0
Maximum 24 Hour Drawdown Rate (10 feet/day): 164 cfs + Inflow (69 cfs) = 233 cfs
Report Generated July 13, 2024 07:42 am