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Surry Mountain Dam, Ashuelot River
Surry Mountain Dam, Ashuelot River
 Drainage Area: 100 sq. miles 
 Channel Capacity: 1,250 cfs 
 Storage at Spillway Crest: 5.94 in / 31,694 ac-ft  
 Normal Pool: 15 Feet (Summer), 18 Feet (Winter) 
 Gate Settings for June 24, 2025 07:00 am Gate 1 Gate 2 E. Gate Loc. E. Gate Pos. Gate 5 Gate 6 Gate 7 Gate 8
  3.0 3.0 1 56        
Date Time
(Eastern)		 Pool
(ft)		 Storage
(%)		 Storage
(ac-ft)		 Tailwater
(ft)		 Flow
(cfs)		 Inflow
(cfs)		 Precip
(in)		 Air Temp
(F)
Jun-25 12:45 am 15.87 0.9 234 5.53 100 81 33.15 79.5
Jun-24 11:45 pm 15.88 0.9 237 5.54 101 76 33.15 81.3
Jun-24 10:45 pm 15.89 0.9 239 5.54 101 83 33.15 83.6
Jun-24 09:45 pm 15.89 0.9 239 5.55 103 78 33.15 86.4
Jun-24 08:45 pm 15.90 0.9 242 5.55 103 85 33.15 88.8
Jun-24 07:45 pm 15.90 0.9 242 5.56 105 64 33.15 93.0
Jun-24 06:45 pm 15.91 0.9 245 5.56 105 71 33.15 97.2
Jun-24 05:45 pm 15.93 0.9 250 5.57 107 77 33.15 98.1
Jun-24 04:45 pm 15.93 0.9 250 5.58 108 78 33.15 98.7
Jun-24 03:45 pm 15.94 0.9 253 5.58 108 85 33.15 99.4
Jun-24 02:45 pm 15.94 0.9 253 5.59 110 85 33.15 99.3
Jun-24 01:45 pm 15.98 1.0 264 5.60 112 108 33.15 100.2
Jun-24 12:45 pm 15.98 1.0 264 5.60 112 108 33.15 98.7
Jun-24 11:45 am 15.99 1.0 266 5.60 112 109 33.15 97.6
Jun-24 10:45 am 15.99 1.0 266 5.61 114 99 33.15 91.6
Jun-24 09:45 am 15.99 1.0 266 5.61 114 99 33.15 90.4
Jun-24 08:45 am 15.99 1.0 266 5.62 115 95 33.15 80.5
Jun-24 07:45 am 15.99 1.0 266 5.62 115 96 33.15 75.9
Jun-24 06:45 am 15.99 1.0 266 5.63 117 91 33.15 74.4
Jun-24 05:45 am 16.00 1.0 269 5.63 117 91 33.15 71.1
Jun-24 04:45 am 16.02 1.0 275 5.64 119 104 33.15 72.9
Jun-24 03:45 am 16.02 1.0 275 5.64 119 105 33.15 73.7
Jun-24 02:45 am 16.03 1.0 278 5.65 121 106 33.15 74.8
Jun-24 01:45 am 16.03 1.0 278 5.65 121 101 33.15 76.1
Jun-24 12:45 am 16.04 1.0 281 5.66 123 102 33.15 76.9
Maximum 24 Hour Drawdown Rate (5 feet/day): 118 cfs + Inflow (81 cfs) = 199 cfs
Report Generated June 25, 2025 05:01 am