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Mansfield Hollow Dam, Natchaug River
Mansfield Hollow Dam, Natchaug River
 Drainage Area: 159 sq. miles 
 Channel Capacity: 2,900 cfs 
 Storage at Spillway Crest: 5.8 in / 52,000 ac-ft  
 Normal Pool: 16.5 Feet (Summer), 15 Feet (Winter), 18.5 Feet (Spring) 
 Gate Settings for January 10, 2025 07:00 am Gate 1 Gate 2 Gate 3 Gate 4 Gate 5 Gate 6 Gate 7 Gate 8
  4.0 0.0 1.0 0.0 0.0      
Date Time (EST) Pool
(ft)		 Storage
(%)		 Storage
(ac-ft)		 Tailwater
(ft)		 Flow
(cfs)		 Inflow
(cfs)		 Inflow Test
(cfs)		 Precip
(in)		 Air Temp
(F)
Jan-12 07:30 pm 16.74 0.2 2,896 2.17 137 138   10.60 27.2
Jan-12 06:30 pm 16.74 0.2 2,896 2.17 137 138 112 10.60 29.0
Jan-12 05:30 pm 16.74 0.2 2,896 2.17 137 138 113 10.60 32.7
Jan-12 04:30 pm 16.74 0.2 2,896 2.17 137 138 113 10.60 39.2
Jan-12 03:30 pm 16.74 0.2 2,896 2.18 139 130 114 10.60 42.2
Jan-12 02:30 pm 16.74 0.2 2,896 2.17 137 130 114 10.60 41.8
Jan-12 01:30 pm 16.74 0.2 2,896 2.18 139 130 114 10.60 40.8
Jan-12 12:30 pm 16.74 0.2 2,896 2.17 137 130 111 10.60 38.7
Jan-12 11:30 am 16.74 0.2 2,896 2.19 140 131 109 10.60 36.9
Jan-12 10:30 am 16.74 0.2 2,896 2.17 137 130 110 10.60 33.8
Jan-12 09:30 am 16.75 0.2 2,900 2.17 137 139 113 10.60 31.2
Jan-12 08:30 am 16.75 0.2 2,900 2.18 139 139 112 10.60 27.2
Jan-12 07:30 am 16.75 0.2 2,900 2.18 139 131 111 10.60 23.9
Jan-12 06:30 am 16.75 0.2 2,900 2.18 139 131 112 10.60 25.0
Jan-12 05:30 am 16.75 0.2 2,900 2.18 139 131 112 10.60 25.5
Jan-12 04:30 am 16.75 0.2 2,900 2.18 139 131 111 10.60 26.4
Jan-12 03:30 am 16.75 0.2 2,900 2.18 139 139 112 10.60 27.0
Jan-12 02:30 am 16.75 0.2 2,900 2.19 140 139 113 10.60 27.7
Jan-12 01:30 am 16.76 0.2 2,904 2.18 139 148 113 10.60 28.1
Jan-12 12:30 am 16.76 0.2 2,904 2.18 139 147 114 10.60 28.5
Jan-11 11:30 pm 16.76 0.2 2,904 2.19 140 147 115 10.60 28.7
Jan-11 10:30 pm 16.76 0.2 2,904 2.18 139 147 115 10.60 28.9
Jan-11 09:30 pm 16.75 0.2 2,900 2.19 140 139 114 10.60 29.4
Jan-11 08:30 pm 16.75 0.2 2,900 2.19 140 139 114 10.60 30.0
Jan-11 07:30 pm 16.75 0.2 2,900 2.17 137 138 117 10.60 30.7
Maximum 24 Hour Drawdown Rate (5 feet/day): 960 cfs + Inflow (138 cfs) = 1,098 cfs
Report Generated January 12, 2025 08:15 pm