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Colebrook Dam, West Branch Farmington River

Colebrook Dam, West Branch Farmington River
 Drainage Area: 118 sq. miles 
 Channel Capacity: 3,000 cfs 
 Storage at Spillway Crest: 7.98 in / 50,200 ac-ft  
 Normal Pool: 708 Feet NGVD (Normal), 714.5 Feet (Spring) 
 Gate Settings for April 11, 2026 08:00 am Gate 1 Gate 2 Gate 3 Gate 4 Gate 5 Gate 6 Gate 7 Gate 8
  0.10 0.15 0.10          
Date Time (EDT) Pool
(ft)
Storage
(%)
Storage
(ac-ft)
Goodwin
(ft)
Flow
(cfs)
Inflow
(cfs)
Precip
(in)
Air Temp
(F)
Apr-13 03:00 am 711.03 4.6 2,303 638.58       45.6
Apr-13 02:00 am 711.04 4.7 2,311 638.55 89 113   46.0
Apr-13 01:00 am 711.03 4.6 2,303 638.52 91 113   45.9
Apr-13 12:00 am 711.02 4.6 2,296 638.54 89 113   46.2
Apr-12 11:00 pm 711.03 4.6 2,303 638.53 89 113   46.4
Apr-12 10:00 pm 711.02 4.6 2,296 638.52 89 115   46.9
Apr-12 09:00 pm 711.02 4.6 2,296 638.52 89 115   47.7
Apr-12 08:00 pm 711.00 4.6 2,280 638.52 89 115   49.4
Apr-12 07:00 pm 711.00 4.6 2,280 638.52 86 115   49.8
Apr-12 06:00 pm 710.99 4.6 2,272 638.53 89 115   52.7
Apr-12 05:00 pm 710.99 4.6 2,272 638.51 89 115   56.4
Apr-12 04:00 pm 710.99 4.6 2,272 638.50 89 115   57.7
Apr-12 03:00 pm 710.98 4.6 2,264 638.52 89 115   56.3
Apr-12 02:00 pm 710.97 4.6 2,257 638.52 89 115   55.0
Apr-12 01:00 pm 710.99 4.6 2,272 638.50 89 115   52.4
Apr-12 12:00 pm 710.99 4.6 2,272 638.54 89 117   50.4
Apr-12 11:00 am 710.97 4.6 2,257 638.54 86 117   48.2
Apr-12 10:00 am 710.97 4.6 2,257 638.56 86 117   45.1
Apr-12 09:00 am 710.97 4.6 2,257 638.51 89 117   38.9
Apr-12 08:00 am 710.96 4.5 2,249 638.47 89 117   34.2
Apr-12 07:00 am 710.97 4.6 2,257 638.48 89 119   32.7
Apr-12 06:00 am 710.96 4.5 2,249 638.51 89 121   33.3
Apr-12 05:00 am 710.95 4.5 2,241 638.50 89 121   34.6
Apr-12 04:00 am 710.94 4.5 2,233 638.50 89 121   36.1
Apr-12 03:00 am 710.94 4.5 2,233 638.48 89 121   37.8
Maximum 24 Hour Drawdown Rate Not Available - Missing Pool Data
Report Generated April 13, 2026 07:35 am